高中英语作文：为什么我们要学英文

第一篇：高中英语作文：为什么我们要学英文

高中英语作文范文：为什么我们要学英文

为什么我们要学英文

If you want to ask me why we should study English, my answer will be simple and clear.Now let me enumerate the reasons one by one in the following.In the first place, English has become an international language.If you know English, you van make a trip round the world without being misunderstood.In the second place, most valuable books, newspapers and magazines are written in English.If you wish to get knowledge, you must learn English.“为什么我们要学英文”英语作文译文:

如果你要问我们为什么我们要学英文。我的答复很简单明了。现在让我来把我的理由一一列举在下面:

英文已成为一种国际语言。如果你通晓它,你可以环游世界不会被人误解。

大多数有价值的书籍,报纸和杂志都是用英文写的。如果你希望获得知识,你必须学习英文。

第二篇：我们为什么要上学(英文)

美国总统奥巴马开学演讲 英文全文

2009年9月8日 在弗吉尼亚州阿林顿市

Hello, everybody!Thank you.Thank you.Thank you, everybody.All right, everybody go ahead and have a seat.How is everybody doing today?(Applause。)How about Tim Spicer?(Applause。)I am here with students at Wakefield High School in Arlington, Virginia.And we've got students tuning in from all across America, from kindergarten through 12th grade.And I am just so glad that all could join us today.And I want to thank Wakefield for being such an outstanding host.Give yourselves a big round of applause.(Applause。)I know that for many of you, today is the first day of school.And for those of you in kindergarten, or starting middle or high school, it's your first day in a new school, so it's understandable if you're a little nervous.I imagine there are some seniors out there who are feeling pretty good right now--(applause)--with just one more year to go.And no matter what grade you're in, some of you are probably wishing it were still summer and you could've stayed in bed just a little bit longer this morning.I know that feeling.When I was young, my family lived overseas.I lived in Indonesia for a few years.And my mother, she didn't have the money to send me where all the American kids went to school, but she thought it was important for me to keep up with an American education.So she decided to teach me extra lessons herself, Monday through Friday.But because she had to go to work, the only time she could do it was at 4:30 in the morning.Now, as you might imagine, I wasn't too happy about getting up that early.And a lot of times, I'd fall asleep right there at the kitchen table.But whenever I'd complain, my mother would just give me one of those looks and she'd say, “This is no picnic for me either, buster.”(Laughter。)So I know that some of you are still adjusting to being back at school.But I'm here today because I have something important to discuss with you.I'm here because I want to talk with you about your education and what's expected of all of you in this new school year.Now, I've given a lot of speeches about education.And I've talked about responsibility a lot.I've talked about teachers' responsibility for inspiring students and pushing you to learn.I've talked about your parents' responsibility for making sure you stay on track, and you get your homework done, and don't spend every waking hour in front of the TV or with the Xbox.I've talked a lot about your government's responsibility for setting high standards, and supporting teachers and principals, and turning around schools that aren't working, where students aren't getting the opportunities that they deserve.But at the end of the day, we can have the most dedicated teachers, the most supportive parents, the best schools in the world--and none of it will make a difference, none of it will matter unless all of you fulfill your responsibilities, unless you show up to those schools, unless you pay attention to those teachers, unless you listen to your parents and grandparents and other adults and put in the hard work it takes to succeed.That's what I want to focus on today: the responsibility each of you has for your education.I want to start with the responsibility you have to yourself.Every single one of you has something that you're good at.Every single one of you has something to offer.And you have a responsibility to yourself to discover what that is.That's the opportunity an education can provide.Maybe you could be a great writer--maybe even good enough to write a book or articles in a newspaper--but you might not know it until you write that English paper--that English class paper that's assigned to you.Maybe you could be an innovator or an inventor--maybe even good enough to come up with the next iPhone or the new medicine or vaccine--but you might not know it until you do your project for your science class.Maybe you could be a mayor or a senator or a Supreme Court justice--but you might not know that until you join student government or the debate team.And no matter what you want to do with your life, I guarantee that you'll need an education to do it.You want to be a doctor, or a teacher, or a police officer? You want to be a nurse or an architect, a lawyer or a member of our military? You're going to need a good education for every single one of those careers.You cannot drop out of school and just drop into a good job.You've got to train for it and work for it and learn for it.And this isn't just important for your own life and your own future.What you make of your education will decide nothing less than the future of this country.The future of America depends on you.What you're learning in school today will determine whether we as a nation can meet our greatest challenges in the future.You'll need the knowledge and problem-solving skills you learn in science and math to cure diseases like cancer and AIDS, and to develop new energy technologies and protect our environment.You'll need the insights and critical-thinking skills you gain in history and social studies to fight poverty and homelessness, crime and discrimination, and make our nation more fair and more free.You'll need the creativity and ingenuity you develop in all your classes to build new companies that will create new jobs and boost our economy.We need every single one of you to develop your talents and your skills and your intellect so you can help us old folks solve our most difficult problems.If you don't do that--if you quit on school--you're not just quitting on yourself, you're quitting on your country.Now, I know it's not always easy to do well in school.I know a lot of you have challenges in your lives right now that can make it hard to focus on your schoolwork.I get it.I know what it's like.My father left my family when I was two years old, and I was raised by a single mom who had to work and who struggled at times to pay the bills and wasn't always able to give us the things that other kids had.There were times when I missed having a father in my life.There were times when I was lonely and I felt like I didn't fit in.So I wasn't always as focused as I should have been on school, and I did some things I'm not proud of, and I got in more trouble than I should have.And my life could have easily taken a turn for the worse.But I was--I was lucky.I got a lot of second chances, and I had the opportunity to go to college and law school and follow my dreams.My wife, our First Lady Michelle Obama, she has a similar story.Neither of her parents had gone to college, and they didn't have a lot of money.But they worked hard, and she worked hard, so that she could go to the best schools in this country.Some of you might not have those advantages.Maybe you don't have adults in your life who give you the support that you need.Maybe someone in your family has lost their job and there's not enough money to go around.Maybe you live in a neighborhood where you don't feel safe, or have friends who are pressuring you to do things you know aren't right.But at the end of the day, the circumstances of your life--what you look like, where you come from, how much money you have, what you've got going on at home--none of that is an excuse for neglecting your homework or having a bad attitude in school.That's no excuse for talking back to your teacher, or cutting class, or dropping out of school.There is no excuse for not trying.Where you are right now doesn't have to determine where you'll end up.No one's written your destiny for you, because here in America, you write your own destiny.You make your own future.That's what young people like you are doing every day, all across America.Young people like Jazmin Perez, from Roma, Texas.Jazmin didn't speak English when she first started school.Neither of her parents had gone to college.But she worked hard, earned good grades, and got a scholarship to Brown University--is now in graduate school, studying public health, on her way to becoming Dr.Jazmin Perez.I'm thinking about Andoni Schultz, from Los Altos, California, who's fought brain cancer since he was three.He's had to endure all sorts of treatments and surgeries, one of which affected his memory, so it took him much longer--hundreds of extra hours--to do his schoolwork.But he never fell behind.He's headed to college this fall.And then there's Shantell Steve, from my hometown of Chicago, Illinois.Even when bouncing from foster home to foster home in the toughest neighborhoods in the city, she managed to get a job at a local health care center, start a program to keep young people out of gangs, and she's on track to graduate high school with honors and go on to college.And Jazmin, Andoni, and Shantell aren't any different from any of you.They face challenges in their lives just like you do.In some cases they've got it a lot worse off than many of you.But they refused to give up.They chose to take responsibility for their lives, for their education, and set goals for themselves.And I expect all of you to do the same.That's why today I'm calling on each of you to set your own goals for your education--and do everything you can to meet them.Your goal can be something as simple as doing all your homework, paying attention in class, or spending some time each day reading a book.Maybe you'll decide to get involved in an extracurricular activity, or volunteer in your community.Maybe you'll decide to stand up for kids who are being teased or bullied because of who they are or how they look, because you believe, like I do, that all young people deserve a safe environment to study and learn.Maybe you'll decide to take better care of yourself so you can be more ready to learn.And along those lines, by the way, I hope all of you are washing your hands a lot, and that you stay home from school when you don't feel well, so we can keep people from getting the flu this fall and winter.But whatever you resolve to do, I want you to commit to it.I want you to really work at it.I know that sometimes you get that sense from TV that you can be rich and successful without any hard work--that your ticket to success is through rapping or basketball or being a reality TV star.Chances are you're not going to be any of those things.The truth is, being successful is hard.You won't love every subject that you study.You won't click with every teacher that you have.Not every homework assignment will seem completely relevant to your life right at this minute.And you won't necessarily succeed at everything the first time you try.That's okay.Some of the most successful people in the world are the ones who've had the most failures.J.K.Rowling's--who wrote Harry Potter--her first Harry Potter book was rejected 12 times before it was finally published.Michael Jordan was cut from his high school basketball team.He lost hundreds of games and missed thousands of shots during his career.But he once said, “I have failed over and over and over again in my life.And that's why I succeed.” These people succeeded because they understood that you can't let your failures define you--you have to let your failures teach you.You have to let them show you what to do differently the next time.So if you get into trouble, that doesn't mean you're a troublemaker, it means you need to try harder to act right.If you get a bad grade, that doesn't mean you're stupid, it just means you need to spend more time studying.No one's born being good at all things.You become good at things through hard work.You're not a varsity athlete the first time you play a new sport.You don't hit every note the first time you sing a song.You've got to practice.The same principle applies to your schoolwork.You might have to do a math problem a few times before you get it right.You might have to read something a few times before you understand it.You definitely have to do a few drafts of a paper before it's good enough to hand in.Don't be afraid to ask questions.Don't be afraid to ask for help when you need it.I do that every day.Asking for help isn't a sign of weakness, it's a sign of strength because it shows you have the courage to admit when you don't know something, and that then allows you to learn something new.So find an adult that you trust--a parent, a grandparent or teacher, a coach or a counselor--and ask them to help you stay on track to meet your goals.And even when you're struggling, even when you're discouraged, and you feel like other people have given up on you, don't ever give up on yourself, because when you give up on yourself, you give up on your country.The story of America isn't about people who quit when things got tough.It's about people who kept going, who tried harder, who loved their country too much to do anything less than their best.It's the story of students who sat where you sit 250 years ago, and went on to wage a revolution and they founded this nation.Young people.Students who sat where you sit 75 years ago who overcame a Depression and won a world war;who fought for civil rights and put a man on the moon.Students who sat where you sit 20 years ago who founded Google and Twitter and Facebook and changed the way we communicate with each other.So today, I want to ask all of you, what's your contribution going to be? What problems are you going to solve? What discoveries will you make? What will a President who comes here in 20 or 50 or 100 years say about what all of you did for this country? Now, your families, your teachers, and I are doing everything we can to make sure you have the education you need to answer these questions.I'm working hard to fix up your classrooms and get you the books and the equipment and the computers you need to learn.But you've got to do your part, too.So I expect all of you to get serious this year.I expect you to put your best effort into everything you do.I expect great things from each of you.So don't let us down.Don't let your family down or your country down.Most of all, don't let yourself down.Make us all proud.Thank you very much, everybody.God bless you.God bless America.Thank you。

第三篇：ted演讲稿 我们为什么要睡眠英文

ted演讲稿 我们为什么要睡眠英文

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ted演讲稿 我们为什么要睡眠英文

简介：一生中，我们有三分之一的时间都在睡眠中度过。关于睡眠，你又了解多少?睡眠专家Russell Foster为我们解答为什么要睡觉，以及睡眠对健康的影响。

What I'd like to do today is talk about one of my favorite subjects, and that is the neuroscience of sleep.Now, there is a sound--(Alarm clock)--aah, it worked--a sound that is desperately, desperately familiar to most of us, and of course it's the sound of the alarm clock.And what that truly ghastly, awful sound does is stop the single most important behavioral experience that we have, and that's sleep.If you're an average sort of person, 36 percent of your life will be spent asleep, which means that if you live to 90, then 32 years will have been spent entirely asleep.Now what that 32 years is telling us is that sleep at some level is important.And yet, for most of us, we don't give sleep a second thought.We throw it away.We really just don't think about sleep.And so what I'd like to do today is change your views, change your ideas and your thoughts about sleep.And the journey that I want to take you on, we need to start by going back in time.“Enjoy the honey-heavy dew of slumber.” Any ideas who said that? Shakespeare's Julius Caesar.Yes, let me give you a few more quotes.“O sleep, O gentle sleep, nature's soft nurse, how have I frighted thee?” Shakespeare again, from--I won't say it--the Scottish play.(Laughter)From the same time: “Sleep is the golden chain that ties health and our bodies together.” Extremely prophetic, by Thomas Dekker, another Elizabethan dramatist.But if we jump forward 400 years, the tone about sleep changes somewhat.This is from Thomas Edison, from the beginning of the 20th century.“Sleep is a criminal waste of time and a heritage from our cave days.” Bang.(Laughter)And if we also jump into the 1980s, some of you may remember that Margaret Thatcher was reported to have said, “Sleep is for wimps.” And of course the infamous--what was his name?--the infamous Gordon Gekko from “Wall Street” said, “Money never sleeps.”

What do we do in the 20th century about sleep? Well, of course, we use Thomas Edison's light bulb to invade the night, and we occupied the dark, and in the process of this occupation, we've treated sleep as an illness, almost.We've treated it as an enemy.At most now, I suppose, we tolerate the need for sleep, and at worst perhaps many of us think of sleep as an illness that needs some sort of a cure.And our ignorance about sleep is really quite profound.Why is it? Why do we abandon sleep in our thoughts? Well, it's because you don't do anything much while you're asleep, it seems.You don't eat.You don't drink.And you don't have sex.Well, most of us anyway.And so therefore it's--Sorry.It's a complete waste of time, right? Wrong.Actually, sleep is an incredibly important part of our biology, and neuroscientists are beginning to explain why it's so very important.So let's move to the brain.Now, here we have a brain.This is donated by a social scientist, and they said they didn't know what it was, or indeed how to use it, so--(Laughter)Sorry.So I borrowed it.I don't think they noticed.Okay.(Laughter)

The point I'm trying to make is that when you're asleep, this thing doesn't shut down.In fact, some areas of the brain are actually more active during the sleep state than during the wake state.The other thing that's really important about sleep is that it doesn't arise from a single structure within the brain, but is to some extent a network property, and if we flip the brain on its back--I love this little bit of spinal cord here--this bit here is the hypothalamus, and right under there is a whole raft of interesting structures, not least the biological clock.The biological clock tells us when it's good to be up, when it's good to be asleep, and what that structure does is interact with a whole raft of other areas within the hypothalamus，the

lateral

hypothalamus，the ventrolateral preoptic nuclei.All of those combine, and they send projections down to the brain stem here.The brain stem then projects forward and bathes the cortex, this wonderfully wrinkly bit over here, with neurotransmitters that keep us awake and essentially provide us with our consciousness.So sleep arises from a whole raft of different interactions within the brain, and essentially, sleep is turned on and off as a result of a range of

Okay.So where have we got to? We've said that sleep is complicated and it takes 32 years of our life.But what I haven't explained is what sleep is about.So why do we sleep? And it won't surprise any of you that, of course, the scientists, we don't have a consensus.There are dozens of different ideas about why we sleep, and I'm going to outline three of those.The first is sort of the restoration idea, and it's somewhat intuitive.Essentially, all the stuff we've burned up during the day, we restore, we replace, we rebuild during the night.And indeed, as an explanation, it goes back to Aristotle, so that's, what, 2,300 years ago.It's gone in and out of fashion.It's fashionable at the moment because what's been shown is that within the brain, a whole raft of genes have been shown to be turned on only during sleep, and those genes are associated with restoration and metabolic pathways.So there's good evidence for the whole restoration hypothesis.What about energy conservation? Again, perhaps intuitive.You essentially sleep to save calories.Now, when you do the sums, though, it doesn't really pan out.If you compare an individual who has slept at night, or stayed awake and hasn't moved very much, the energy saving of sleeping is about 110 calories a night.Now, that's the equivalent of a hot dog bun.Now, I would say that a hot dog bun is kind of a meager return for such a complicated and demanding behavior as sleep.So I'm less convinced by the energy conservation idea.But the third idea I'm quite attracted to, which is brain processing and memory consolidation.What we know is that, if after you've tried to learn a task, and you sleep-deprive individuals, the ability to learn that task is smashed.It's really hugely attenuated.So sleep and memory consolidation is also very important.However, it's not just the laying down of memory and recalling it.What's turned out to be really exciting is that our ability to come up with novel solutions to complex problems is hugely enhanced by a night of sleep.In fact, it's been estimated to give us a threefold advantage.Sleeping at night enhances our creativity.And what seems to be going on is that, in the brain, those neural connections that are important, those synaptic connections that are important, are linked and strengthened, while those that are less important tend to fade away and be less important.Okay.So we've had three explanations for why we might sleep, and I think the important thing to realize is that the details will vary, and it's probable we sleep for multiple different reasons.But sleep is not an indulgence.It's not some sort of thing that we can take on board rather casually.I think that sleep was once likened to an upgrade from economy to business class, you know, the equiavlent of.It's not even an upgrade from economy to first class.The critical thing to realize is that if you don't sleep, you don't fly.Essentially, you never get there, and what's extraordinary about much of our society these days is that we are desperately sleep-deprived.So let's now look at sleep deprivation.Huge sectors of society are sleep-deprived, and let's look at our sleep-o-meter.So in the 1950s, good data suggests that most of us were getting around about eight hours of sleep a night.Nowadays, we sleep one and a half to two hours less every night, so we're in the six-and-a-half-hours-every-night

league.For teenagers, it's worse, much worse.They need nine hours for full brain performance, and many of them, on a school night, are only getting five hours of sleep.It's simply not enough.If we think about other sectors of society, the aged, if you are aged, then your ability to sleep in a single block is somewhat disrupted, and many sleep, again, less than five hours a night.Shift work.Shift work is extraordinary, perhaps 20 percent of the working population, and the body clock does not shift to the demands of working at night.It's locked onto the same light-dark cycle as the rest of us.So when the poor old shift worker is going home to try and sleep during the day, desperately tired, the body clock is saying, “Wake up.This is the time to be awake.” So the quality of sleep that you get as a night shift worker is usually very poor, again in that sort of five-hour region.And then, of course, tens of millions of people suffer from jet lag.So who here has jet lag? Well, my goodness gracious.Well, thank you very much indeed for not falling asleep, because that's what your brain is craving.One of the things that the brain does is indulge in micro-sleeps, this involuntary falling asleep, and you have essentially no control over it.Now, micro-sleeps can be sort of somewhat embarrassing, but they can also be deadly.It's been estimated that 31 percent of drivers will fall asleep at the wheel at least once in their life, and in the , the statistics are pretty good: 100,000 accidents on the freeway have been associated with tiredness, loss of vigilance, and falling asleep.A hundred thousand a year.It's extraordinary.At another level of terror, we dip into the tragic accidents at Chernobyl and indeed the space shuttle Challenger, which was so tragically lost.And in the investigations that followed those disasters, poor judgment as a result of extended shift work and loss of vigilance and tiredness was attributed to a big chunk of those disasters.So when you're tired, and you lack sleep, you have poor memory, you have poor creativity, you have increased impulsiveness, and you have overall poor judgment.But my friends, it's so much worse than that.(Laughter)

If you are a tired brain, the brain is craving things to wake it up.So drugs, stimulants.Caffeine represents the stimulant of choice across much of the Western world.Much of the day is fueled by caffeine, and if you're a really naughty tired brain, nicotine.And of course, you're fueling the waking state with these stimulants, and then of course it gets to 11 o'clock at night, and the brain says to itself, “Ah, well actually, I need to be asleep fairly shortly.What do we do about that when I'm feeling completely wired?” Well, of course, you then resort to alcohol.Now alcohol, short-term, you know, once or twice, to use to mildly sedate you, can be very useful.It can actually ease the sleep transition.But what you must be so aware of is that alcohol doesn't provide sleep, a biological mimic for sleep.It sedates you.So it actually harms some of the neural proccessing that's going on during memory consolidation and memory recall.So it's a short-term acute measure, but for goodness sake, don't become addicted to alcohol as a way of getting to sleep every night.Another connection between loss of sleep is weight gain.If you sleep around about five hours or less every night, then you have a 50 percent likelihood of being obese.What's the connection here? Well, sleep loss seems to give rise to the release of the hormone ghrelin, the hunger hormone.Ghrelin is released.It gets to the brain.The brain says, “I need carbohydrates,” and what it does is seek out carbohydrates and particularly sugars.So there's a link between tiredness and the metabolic predisposition for weight gain.Stress.Tired people are massively stressed.And one of the things of stress, of course, is loss of memory, which is what I sort of just then had a little lapse of.But stress is so much more.So if you're acutely stressed, not a great problem, but it's sustained stress associated with sleep loss that's the problem.So sustained stress leads to suppressed immunity, and so tired people tend to have higher rates of overall infection, and there's some very good studies showing that shift workers, for example, have higher rates of cancer.Increased levels of stress throw glucose into the circulation.Glucose becomes a dominant part of the vasculature and essentially you become glucose intolerant.Therefore, diabetes 2.Stress increases cardiovascular disease as a result of raising blood pressure.So there's a whole raft of things associated with sleep loss that are more than just a mildly impaired brain, which is where I think most people think that sleep loss resides.So at this point in the talk, this is a nice time to think, well, do you think on the whole I'm getting enough sleep? So a quick show of hands.Who feels that they're getting enough sleep here? Oh.Well, that's pretty impressive.Good.We'll talk more about that later, about what are your tips.So most of us, of course, ask the question, “Well, how do I know whether I'm getting enough sleep?” Well, it's not rocket science.If you need an alarm clock to get you out of bed in the morning, if you are taking a long time to get up, if you need lots of stimulants, if you're grumpy, if you're irritable, if you're told by your work colleagues that you're looking tired and irritable, chances are you are sleep-deprived.Listen to them.Listen to yourself.What do you do? Well--and this is slightly offensive--sleep for dummies: Make your bedroom a haven for sleep.The first critical thing is make it as dark as you possibly can, and also make it slightly cool.Very important.Actually, reduce your amount of light exposure at least half an hour before you go to bed.Light increases levels of alertness and will delay sleep.What's the last thing that most of us do before we go to bed? We stand in a massively lit bathroom looking into the mirror cleaning our teeth.It's the worst thing we can possibly do before we went to sleep.Turn off those mobile phones.Turn off those computers.Turn off all of those things that are also going to excite the brain.Try not to drink caffeine too late in the day, ideally not after lunch.Now, we've set about reducing light exposure before you go to bed, but light exposure in the morning is very good at setting the biological clock to the light-dark cycle.So seek out morning light.Basically, listen to yourself.Wind down.Do those sorts of things that you know are going to ease you off into the honey-heavy dew of slumber.Okay.That's some facts.What about some myths?

Teenagers are lazy.No.Poor things.They have a biological predisposition to go to bed late and get up late, so give them a break.We need eight hours of sleep a night.That's an average.Some people need more.Some people need less.And what you need to do is listen to your body.Do you need that much or do you need more? Simple as that.Old people need less sleep.Not true.The sleep demands of the aged do not go down.Essentially, sleep fragments and becomes less robust, but sleep requirements do not go down.And the fourth myth is, early to bed, early to rise makes a man healthy, wealthy and wise.Well that's wrong at so many different levels.(Laughter)There is no, no evidence that getting up early and going to bed early gives you more wealth at all.There's no difference in socioeconomic status.In my experience, the only difference between morning people and evening people is that those people that get up in the morning early are just horribly smug.(Laughter)(Applause)

Okay.So for the last part, the last few minutes, what I want to do is change gears and talk about some really new, breaking areas of neuroscience, which is the association between mental health, mental illness and sleep disruption.We've known for 130 years that in severe mental illness, there is always, always sleep disruption, but it's been largely ignored.In the 1970s, when people started to think about this again, they said, “Yes, well, of course you have sleep disruption in schizophrenia because they're on anti-psychotics.It's the anti-psychotics causing the sleep problems,” ignoring the fact that for a hundred years previously, sleep disruption

had

been

reported

before anti-psychotics.So what's going on? Lots of groups, several groups are studying conditions like depression, schizophrenia and bipolar, and what's going on in terms of sleep disruption.We have a big study which we published last year on schizophrenia, and the data were quite extraordinary.In those individuals with schizophrenia, much of the time, they were awake during the night phase and then they were asleep during the day.Other groups showed no 24-hour patterns whatsoever.Their sleep was absolutely smashed.And some had no ability to regulate their sleep by the light-dark cycle.They were getting up later and later and later and later each night.It was smashed.So what's going on? And the really exciting news is that mental illness and sleep are not simply associated but they are physically linked within the brain.The neural networks that predispose you to normal sleep, give you normal sleep, and those that give you normal mental health are overlapping.And what's the evidence for that? Well, genes that have been shown to be very important in the generation of normal sleep, when mutated, when changed, also predispose individuals to mental health problems.And last year, we published a study which showed that a gene that's been linked to schizophrenia, which, when mutated, also smashes the sleep.So we have evidence of a genuine mechanistic overlap between these two important systems.Other work flowed from these studies.The first was that sleep disruption actually precedes certain types of mental illness, and we've shown that in those young individuals who are at high risk of developing bipolar disorder, they already have a sleep abnormality prior to any clinical diagnosis of bipolar.The other bit of data was that sleep disruption may actually exacerbate, make worse the mental illness state.My colleague Dan Freeman has used a range of agents which have stabilized sleep and reduced levels of paranoia in those individuals by 50 percent.So what have we got? We've got, in these connections, some really exciting things.In terms of the neuroscience, by understanding the neuroscience of these two systems, we're really beginning to understand how both sleep and mental illness are generated and regulated within the brain.The second area is that if we can use sleep and sleep disruption as an early warning signal, then we have the chance of going in.If we know that these individuals are vulnerable, early intervention then becomes possible.And the third, which I think is the most exciting, is that we can think of the sleep centers within the brain as a new therapeutic target.Stabilize sleep in those individuals who are vulnerable, we can certainly make them healthier, but also alleviate some of the appalling symptoms of mental illness.So let me just finish.What I started by saying is take sleep seriously.Our attitudes toward sleep are so very different from a pre-industrial age, when we were almost wrapped in a duvet.We used to understand intuitively the importance of sleep.And this isn't some sort of crystal-waving nonsense.This is a pragmatic response to good health.If you have good sleep, it increases your concentration, attention, decision-making, creativity, social skills, health.If you get sleep, it reduces your mood changes, your stress, your levels of anger, your impulsivity, and your tendency to drink and take drugs.And we finished by saying that an understanding of the neuroscience of sleep is really informing the way we think about some of the causes of mental illness, and indeed is providing us new ways to treat these incredibly debilitating conditions.Jim Butcher, the fantasy writer, said, “Sleep is God.Go worship.” And I can only recommend that you do the same.Thank you for your attention.(Applause)

第四篇：高中英语阅读课英文说课稿

高中英语阅读课英文说课稿.txt一个人 一盒烟 一台电脑过一天一个人 蚕豆过一宿。永远扛不住女人的小脾气，女人

高中英语阅读课英文说课稿 以下为说课范例：

Teaching content:

Reading: Third Period of Unit 9 Technology

Teaching aims and demands 教学目标

1.Knowledge aims:

a.Provide Ss some information about the cellphone.一瓶酒 一盘

永远抵不住男人的花言巧语。

b.Learn new words and expressions: toothpick, agreement, disagreement, disagree, absolutely, depend, be good at, inside out

2.Ability aims 能力目标

a.Enable Ss to find the answers in the text quickly and correctly.b.help Ss to find the main idea of each paragraph.3.Learning ability aims 学能目标

a.Help Ss to express their opinions about life on the go.b.Improve the reading ability.Teaching important points 教学重点

Let Ss learn to how to improve their ability.Teaching difficult points 教学难点

How to get the main idea of the text and each paragraph quickly and correctly.Teaching methods 教学方法

1.Co-operative method for creative ideas.2.Fast reading and careful reading

3.Quesion-and-answer activity teaching method

Teaching aids 教具准备

1.A telephone

2.Some pictures

Teaching procedures & ways 教学过程与方式

Step I Lead-in and warming-up

Ask the students consider this question: If I miss my mother, how can I do? Then the Ss can give me many ways like walking home to tell my mother, write a letter, or just give a call.Then I asked my Ss which one is the best.The students will tell me “telephone”, and then I will deal with the new lesson life on the go.Step II

Check the answers in the exercise books and tell them some skills of reading.Step III Fast reading

Give the students some minutes and read the text quickly and then answer the questions.1.What does life on the go mean?

Life on the go here means a fast-paced lifestyle where people are always on the go—rushing from one place to another, using phones, computers, etc.2.What is the second paragraph about?

It’s mainly about the different uses of cellphones.Step IV Careful reading

Read the text carefully and then decide the following true or false questions.1.Many Chinese teenagers live life on the go just like Wang Mei.2.With cellphones, we can only make calls and send messages.3.All cellphones have an electronic calendar to remind you of appointments and dates.4.The students don’t use the cellphone in the classroom because of the school rules.5.With a cellphone, students will certainly waste some time and money on it.6.Teenagers like cellphones just because they can send messages.7.Wang Mei has a cellphone but her best friend Xiao Li hasn’t.Step V Consolidation

Give the students 5 minutes to read the text against and find the main idea of each paragraph.Para.1 Wang Mei is an example of Chinese teenagers who have cell phones.Para.2 Cell phones can be used for what?

Para.3.Why are not the students allowed to use the cell phone.?

第五篇：高中英语作文我们必须面对失败

高中英语作文我们必须面对失败

高中英语作文：我们必须面对失败

We Must Face Failure

As we all know, “Failure is the mother of success.” But few people can really understand what the saying means.In the world, I am sure that no one dare say he hasn't met any trouble all his life.So we must face failure.In fact, failure is not fearful, but important thing is how to face it correctly.Facing failure, people will never take their fate lying down.They will try their best to work harder and harder until at last they succeed.Not being courageous to face setbacks, people have no chance to enjoy the pleasure of success.So they have nothing to do but feel sad and empty all day and all night.In fact, they lose the chance of success themselves.My friend, whenever in trouble, please remember, “Failure is the mother of success.”

我们必须面对失败

我们都知道：“失败是成功之母。”但真正理解这句话的人却不多。

我相信，世界上没有一个人敢说他一生中从没遇到过任何麻烦。因此，我们必须面对失败。其实，失败并不可怕，重要的是如何正确看待它。敢于面对失败，人们将不再由命运摆布。他们将全力以赴的辛勤工作，直到最后成功。

不敢面对挫折，人们也就没有机会享受成功的喜悦。他们会无所事事，终日沮丧而空虚。事实上，是他们自己把成功的机会丧失了。

朋友们，无论何时你遇到了困难，请记住：“失败是成功之母。”