第一篇:2017中考必考的1英语作文
2017中考必考的15篇英语作文,熟记,向着满分作文迈进!
第一篇: 【写作要求】
现在我们周围的环境污染越来越严重。作为一个中学生,我们应节约资源,保护环境,从我们身边的小事做起,做一个“低碳生活”的中学生。请以“My Low--carbon Life”为题,写一篇短文描述自己的“低碳生活”。
内容包括:
1.地球的污染越来越严重,我们能看到森林被砍伐、水污染和空气污染。
2.你是怎样从身边小事做起,做到“低碳生活”的。如:每天步行上学、离开教室及时关灯和电扇、充分利用纸张、节约用水等。3.号召更多的人加入到“低碳生活”中来。
作文要求:
1.不能照抄原文;不得在作文中出现学校真实的名称和学生的真实姓名。
2.语句连贯,词数80个左右。作文的题目已经给出,不计入总词数。
My Low--carbon Life
The environmental pollution is worse and worse today.【优秀满分范文】 My Low-carbon Life
The environmental pollution is worse and worse today.Many trees are cut down, and water and air are polluted.As a student I try to have a low-carbon life to save energy and reduce pollution.Firstly, I often walk to school.It can reduce air pollution.Secondly, I always turn off the lights and fans when leaving the classroom.Thirdly, I always make full use of paper and other school things and never waste water.I wish more students to join me and make the earth more and more beautiful.第二篇: 【写作要求】
每当朋友之间即将分手的时候,耳边常常会响起这首歌“朋友啊朋友!你可曾想起了我,如果你正享受幸福,请你忘记我„„”。请你以Friends为题,写一篇90词左右的短文,可以围绕主题适当展开,阐述交友的重要性和好处。
【优秀满分范文】 Friends
What are friends? We often talk about the topic with others.I think friends are those people who can help you when you are in trouble.Don’t forget the saying, “A friend in need is a friend indeed.” Friends can tell you your mistakes, though what they say is hard for you to listen to.You can share your happiness, trouble and worry with friends.Someone also says, “You can’t walk any step without a friend.” So I think friends are very important to us.I would like to make as many friends as possible.第三篇: 【写作要求】
最近,你们班就“是否应该帮助陌生人”展开了讨论,同学们就这一话题意见不一,你的看法如何?根据所提供的信息,以“Should We Help Strangers?”为题,写一篇短文。原因 赞成
帮助他人是美德; 帮助他人就是帮助自己; 反对 怕陷入麻烦; 怕被误解;
你的观点?(至少两点)
要求:1)表达清楚,语法正确,上下文连贯; 2)必须包括表格中所有的相关信息,并适当发挥; 3)词数:100左右(征文的开头已给出,不计入总词数); 4)不得使用真实姓名、校名和地名等。参考词汇:美德virtue
Should We Help Strangers?
Recently our class had a discussion about whether we should help strangers.Different students have different opinions. 【优秀满分范文】 Should We Help Strangers?
Recently our class had a discussion about whether we should help strangers.Different students have different opinions.
Some think we should try to help strangers. Helping others is a virtue,and helping others is helping ourselves.We may come across some trouble and need others' help some day.If everyone isn't willing to help us just because we are strangers to them,it's hard to imagine what our world will be like.
However,some are afraid that helping others can sometimes bring us trouble.Sometimes we are just misunderstood and even have to pay the cost of kindness.
In my opinion,we should try our best to help others when they are in need of help,but we should also protect ourselves from getting into trouble.If everyone tries a little kindness,our world will be full of love. 第四篇: 【写作要求】
某英语报开展“How to Deal with Our Study Problems”征文比赛,请你根据提示的内容,简要描述并适当发表自己的观点,写一篇英语短文。内容要点如下:
1.尽管我们常常感到有压力,但是应该找到合适的方式来解压。可以选择穿像蓝色和白色一样的冷色调来使我们自己感到放松; 2.我们应该足够细心,因为“失之毫厘,谬以千里”;
3.也应该在课业和业余爱好之间取得平衡,试着安排好自己的空余时间;
4.任何时候都不要失去信心。通过努力学习,我们会取得大的进步。5.有问题时,我们„
要求:1.内容须包含所有要点,语句通顺,意思连贯; 2.词数90个左右;
3.第5点的内容需展开合理想象,用2句话补充完整。
【优秀满分范文】
How to Deal with Our Study Problems
Although we often feel stressed, we should find suitable ways to deal with stress.We can wear calm colours like blue and white to make us feel relaxed.We should be careful enough, because “a miss is as good as a mile”.We should also achieve a balance between schoolwork and hobbies.Try to plan your spare time well.Don’t lose heart at any time.You will make great progress through hard work.When having problems, we can ask people around us for help.It’s not wise to keep our worries to ourselves.第五篇: 【写作要求】
学校英语社团在举办征文比赛,请你根据以下提示内容,写一篇题为“The Person Who Has Influenced Me Most”的英语文章。内容要点如下:
1.对我影响最大的人是我的妈妈,她四十几岁; 2.她总是耐心倾听我的问题,并建议我如何解决它们;
3.作为一名医生,她常说再怎么仔细也不为过。她总是加班,把她的大部分时
间都奉献给了工作;
4.所以,我认为她不仅是位好妈妈,也是名好医生。5.我希望 „„
要求:1.内容须包含所有要点,语句通顺,意思连贯; 2.词数90个左右;
3.第5点的内容需展开合理想象,用2-3句话补充完整。【优秀满分范文】
The Person Who Has Influenced Me Most
My mother is the person who has influenced me most.She is in her forties.She always listens to my problems patiently.And she advises me how to solve them.As a doctor, she often says she can’t be too careful.She often works extra hours.She has devoted most of her time to her work.So I think she is not only a good mother but also a good doctor.I hope I can be a person like her.I also hope she will pay more attention to her own health.She’d better have more time to relax herself.第六篇: 【写作要求】
假设不久前你们学校为贫困地区的孩子们筹款举办了一次慈善行活动。请据此在制定的位置上,以“Walk for children in poor areas”为题,为某中学生英文报写一篇报道,内容要点如下: 1.目的:为贫困地区的孩子们筹款 2.10月23日,星期六 3.路径:学校—市中心 4.简况:学生把自己分成四人一组,出发前计划好了一切,步行很艰辛,但活动过程中大家互相帮助,互相支持。最终在许多人的帮助下,筹得善款5万多元。
5.感受:每个人都很累,但都很高兴,因为„
注意:1.报道须包括所给内容要点,要求语句通顺,意思连贯; 2.第5要点的内容须用至少2句话展开合理想象,作适当发挥; 3.词数80个左右。【优秀满分范文】
Walk for children in poor areas
Not long ago, our school organized a charity walk to raise money for children in poor areas.It was on Saturday, 23 rd October.We walked from the school to the centre of the city.Before the walk, we grouped ourselves into a team of four and planned everything well.It was a hard(tough)work.But during the walk, we supported and helped each other.With the help of many people, we raised over(more than)50,000 yuan in the end.We all felt tired, but we were very happy.Because it was a meaningful experience and it was an excellent chance to learn team spirit.第七篇: 【写作要求】
“保护环境,人人有责”,你想成为一名绿色使者吗?请行动起来吧!其实,环保就在我们身边。请以“How to Be a Greener Person” 为题,写一篇短文。
注意:
1.表达清楚,语句通顺,意思连贯,书写规范; 2.短文词数90 左右。文章开头已给出,不计入总词数。
参考词汇:draw, both sides of paper, plastics, water tap, collect, waste, can, sort
How to Be a Greener Person?
It’s our duty to protect our environment around us.【优秀满分范文】
How to be a greener person
It’s our duty to protect the inviyonment around us.When we go to school, we should ride a bike or take a bus.When we go out for activities, we shouldn’t step on the grass.We can’t draw everywhere.When we go shopping, we’d better use a cloth bag.At home we can save water and electricity.When we leave a room, we should turn off the ligts.At school we can collect wast paper and recycle things, such as bottles, cans and plastic bags.We shoudn’t listen to pop music or spit in pulic.Let’s do something to protect our environment.第八篇: 【写作要求】
“灿烂星空,谁是真的英雄?”做出惊天动地业绩的人是英雄,为追求真理献出生命的人是英雄,在平凡岗位上默默奉献的人是英雄„„
一.Dr Norman Bethune
1.Natlonality(国籍): Canada
2.Hobby: taking photos
3.Main stories: saved a lot of Chinese people;opened hospitals;invented medical tools 二.Liu Xiang 1.Nationality: China 2.Hobby: singing 3.Main stories: won the first 4.Olympic gold medal in the men' s 110m hurdles event in Athens;set a world record in the same event in Lausanne
从上面信息卡中选择一位英雄,以The Hero in My Heart为题写一篇短文。
要求:①包含所选信息卡上的内容;②适当拓展,如学英雄的感想、行动等;③不能出现表明你身份的信息;④词数80左右,不含已给出部分。
The Hero in My Heart
As we know, most people have heroes in their hearts.For me,【优秀满分范文1】
The Hero in My Heart
As we know,most people have heroes in their hearts.For me, Dr Norman Bethune is the hero in my heart.He was a great doctor from Canada.Dr Bethune was good at performing operations.And taking photos was his hobby.In 1938,he came to China.He opened hospitals and invented medical tools.He worked so hard that he saved thousands of Chinese people.He didn’t stop to take care of his own injured hand and died.I am deeply moved by his stories.So I’ll work hard today and do my best to help others.【优秀满分范文2】
The Hero in My Heart
As we know, most people have heroes in their hearts.For me,Liu Xiang is the hero in my heart.He is a famous Chinese sportsman.Liu Xiang is good at running.In 2004,he won his first Olympic gold medal in the men,s 110m hurdles event in Athens.Then, he set a world record in the same event in Lausanne.Besides training and taking part in competitions, Liu Xiang also likes singing and he sings well.With his hard work, he is winning competitions one after another.This encourages me to study harder from now on.第九篇: 【写作要求】
请以“My Favourite Great Book”为题, 根据下面的问题写一篇80个词左右的短文, 注意适当表达自己的看法。1.Who is the writer of the great book? 2.What is the main idea of the book? 3.Who are the important characters? 4.What’s the theme of the story?
【优秀满分范文】 My Favourite Great Book
My favourite great book is The Adventures of Tom Sawyer by Mark Twain.Tom Sawyer is a lively and clever boy.He lives with his aunt Polly.His aunt is strict with him, so he runs to an island in the middle of the Mississippi River with two friends, Huck and Joe.With Huck, he goes looking for treasure;with Becky, he gets lost in a cave.And finally Tom and Huck find a box of gold.Tom is the hero of the story, but there are other important characters.Becky is pretty with fair hair.Huck is Tom’s best friend, and Injun Joe is the bad man of the story.The theme of the story is to do with children growing up and becoming more serious.第十篇: 【写作要求】
某英文报社正就青少年与父母关系这一话题开展题为“How to keep a good relationship with parents”的征文活动。请你根据以下要点, 写一篇80个词左右的英语短文参加此次活动:
1.父母规矩太多, 过于强调学习成绩, 不理解自己等问题;2.你对这些问题的看法;3.你与父母保持良好关系的做法。
How to keep a good relationship with parents
In my opinion, I have too many rules at home.My parents never allow me to go out
【优秀满分范文】
How to keep a good relationship with parents
In my opinion, I have too many rules at home.My parents never allow me to go out with my friends at night.They don’t allow me to choose my own clothes, either.And they pay too much attention to my exam results.I think my parents don’t quite understand me.However, I try my best to understand them.Although they don’t allow me to make my own decisions and give me too much pressure, I know that it is because they really love me and want me to have a bright future.In order to keep a good relationship with my parents, I study hard, listen to them, talk to them as friends, tell them my troubles, and help them do more housework.第十一篇: 【写作要求】
Mary在学校参加了一个Buddy Club, 从那以后,她改变了很多。请你结合下面所给的提示,写一篇英语短文。
In the past Now Personalities shy, quiet, get nervous easily brave, outgoing… Hobbies reading reading, singing… Abilities
good at dancing, singing…
要求: 1.覆盖要点,可以合理增加细节;
2.80词左右,开头已经给出,不计入总词数。
Joining a club sometimes changes a person greatly.【优秀满分范文】
Joining a club sometimes changes a person greatly.Mary used to be a shy and quiet girl.She used to get nervous easily and her face often turned red when she spoke with strangers.She liked nothing but reading alone in her free time.However, she has changed a lot since she joined the Buddy Club.Now, Mary is so brave and outgoing that she isn’t afraid of speaking out in public anymore.What’s more, she has lots of hobbies, such as singing, writing and dancing.She is good at them as well.People sure change all the time, right? What we should do is to learn from Mary.Change ourselves and choose to be the best of ourselves.第十二篇: 【写作要求】
以“My Weekend Housework”为题写一篇短文,谈一谈上星期天你做过的家务活,并介绍你喜欢做的家务活和不喜欢做的家务活。用英语写一篇70词左右的短文。要求:内容完整,意思连贯,符合逻辑,表达正确。
【优秀满分范文】 My Weekend Housework
On last Saturday morning I got up at about seven o’clock.After breakfast, I went to the store and bought some food for the family.I like doing the shopping.I think it’s fun.Then I swept the floor.I didn’t do the laundry and the dishes.I don’t like do any washing.In the afternoon I cleaned the yard.After that I folded my clothes and made my bed.第十三篇: 【写作要求】
实现有效的沟通,建立良好的人际关系,不仅要善于表达,更要善于倾听。请你根据表格中所提供的信息,写一篇题为“Being a Good Listener”的英文演讲稿。
注意:1.词数90左右。短文开头和结尾部分己为你写好,不计入总词数;
2.短文需包括所有提示内容,可适当发挥,使短文连贯、通顺; 3.短文中不要出现具体的学校姓名利人名。
Being a Good Listener
Good afternoon,everyone!
Today I’d like to share my ideas of“Being a Good Listener”with you.Thank you for your listening!
【优秀满分范文】 Being a Good Listener
Good afternoon, everyone!
Today I’d like to share my ideas of “Being a Good Listener” with you.Good listening can always show respect and build good relationships with people.Parents should listen to their children, so they will understand them better and trust each other.Teachers should also listen to their students so that they can increase their understanding and improve relationships.Students should listen to their classmates, then their friendship will be increased and they will help each other.We’d better be patient while listening.Don’t forget to keep silent while listening.In a word, good listening can really make us get closer to each other.Thank you for your listening!第十四篇: 【写作要求】
为了进一步增强中学生的安全意识,提高自我保护能力,某校开展了以”安全”为主题的英语演讲比赛。请你根据以下要点提示写一篇演讲稿。
1.慎重交友
2.遇险报警
3.安全饮食
4.其他(1-2点)注意:1)内容必须包括所给的全部要点,可适当发挥 2)表达清楚,语句通顺,意思连贯,书写规范; 3)词数80左右。文章开头已给出,不计入总词数。参考词汇:be careful, on line, danger, call...for, go bad
How to keep safe?
As teenagers we should always keep safety in mind.But how can we keep safe? Here are some of my suggestions.First,【优秀满分范文】 How to keep safe?
As teenagers, we should always keep safety in mind.But how can we keep safe? Here are some of my suggestions.First, we should be careful when we make friends, especially on line.Second, if we are in danger, we must call the police for help in time so that we can keep ourselves safe.Also,we ought to eat healthily and safely.Eating food that goes bad will do harm to our health.Last but not least, summer is coming, and we must remember it's dangerous to swim in the river.In short, safety must come first!第十五篇: 【写作要求】
你喜欢阅读吗?请你以 “Reading---A good Habit” 为题写一篇有关阅读的短文。内容包括:
1.你的阅读习惯(喜欢的书籍、阅读的时间地点、购书方式等等)。2.阅读带给你什么益处(至少两点)。3.号召大家都读书。作文要求:
1.不能照抄原文,不得在作文中出现学校真实的名称和学生的真实姓名。
2.语句连贯,词数80词左右。【优秀满分范文】
Reading---A good Habit
Reading is a very good habit.I like reading very much.In my eyes, I think that forming a good reading habit is necessary for us.It can not only improve our knowledge but also make us to think over more different things efficiently.Besides, we can do some reading every time when we are free.For example, I often read some of my favorite books in my spare time both at home or in the library.What I like most are story books because most of them are quite interesting.Now I often buy my favorite books on line for its big discount.Finally, I like to share my favorite books with our family or my classmates.Since reading can benefits us a lot, it’s time for us to have our good reading habit now!23
第二篇:高考必考英语作文
春天 Spring When you look around, you will find that the spring is coming.The breeze is gently brushing your face.The blue sky is above you.After raining, the flowers are blooming in the garden.The living beings start to grow.Everything is full with vigor and fragrance.The best season of this year, you cann’t miss it and you will love it.The spring is coming, it brings green to the trees and grass, pink and yellow to the flowers.Activeness to the animals.Hopes to the human beings.The birds start to sing, the farmers begin to plant crops in the fields.In spring, everywhere is full of hope.People usually say that a good beginning is half done, while spring is the beginning of a year.So we should appreciate it and make the most use of it.Try the best to spread seeds in spring and you will get a good harvest in autumn.Then you will see how important spring is and how lovely it is.当你环望四周,你就会发现春天来了。微风轻拂你的脸颊。湛蓝的天空在你头上。春雨过后,花朵在园子里开放。生物开始生长。所有的一切都富有活力和香气。这是一年中最好的季节,你不会错过它,更会爱上它。
春天来了,它把绿色带给了树木和青草;把黄色和粉色带给了鲜花;把活力带给了动物;更把希望带给了人们。小鸟开始唱歌,农民开始在地里耕作庄稼。在春天,一切都充满着希望。人们都说好的开始时成功的一半,那么春天就是一年的开始。所以我们更应该好好珍惜春天,过好每一天。在春天的时候努力播种,秋天时便会有所收获。然后你就会看到春天是多么的重要,多么的可爱了。
请对孩子仁慈点 Please Be Mercy to the Children In 2013, a show called Where Are We Going, Dad was popular around China, in the show, five famous stars and dads with their children went to the countryside to experience the life.This is the first time for the audience can look at the celebrities’ children, the kids are so lovely that all the audiences love them.Now a new show which is similar to the mentioned show becomes a new hot topic, but this time, half audience love the stars’ kids, the ones who don’t like them think that the kids are not as lovely as the ones before, even look ugly.So the audience speaks bad words in the Weibo, showing their dislike.As an outsider, I think it is so cruel to the kids, they are so young and innocent, they don’t know about the world, why should they deserve those vicious words.Imagine if they are your kids, what will you do? People should be mercy to the kids.在2013年,一个叫《爸爸去哪儿》的节目火爆全中国,在节目中,五个著名的星爸和他们的孩子下乡体验生活。这是观众第一次有机会观看名人的孩子,这些孩子都很可爱,所有的观众都喜欢他们。现在一个新的类似的节目成为了焦点,但是这一次,只有一半的观众喜欢明星的孩子,不喜欢的人觉得有些孩子不像之前的可爱,长得不好看。因此观众在微博上对这些孩子留下恶言,以此来表示他们的不喜欢。作为一名局外人,我觉得这对孩子来说很残酷,他们是那么的年轻和天真,对世界都了解不深,为什么他们要承受这样恶毒的话。想象一下,如果这是你的孩子,你会怎么做呢?人们应该对孩子仁慈点。
活在当下 Live In The Moment You owned the happiness that someone is chasing.你正拥有别人的幸福。
Just as me, I always chattered to my young sister to travel instead of working in part-time.But she is always begrudging that I have a full-time job and can financially support myself.拿我来说,每每唠叨我妹妹,希望她多去旅行,不要一味去兼职赚钱。但是她总是说羡慕我经济独立。
Actually, we are the same to look for others’ happiness.事实上,我们都是一样,总在羡慕别人的幸福。
During the college, we live relaxed, simple.In Middle ages we are experienced, distinct.In Old ages we are tolerant, satisfied.Now we are confused, hesitated.Not young enough to depend on families, not old enough to control our life.大学期间,大家都悠然自得,活得简单。等到中年,我们经验丰富,思绪清晰。老年时期,我们活得宽容,知足。现在,我们困惑,举棋不定。不能依赖亲人,却也不能把握现有的生活。
A friend who graduated from a famous university works for a famous company.This is really the life I wish to have.But I always ignored his uneasy and tired working situation.有一个朋友,毕业名牌大学,就职大公司。这就是我一直向往的生活。虽然我总是忽略他工作的不安与辛苦。
It's so bad that I focus on others’ achievements.This is really a waste of life.我对自己太失望了,一味羡慕别人的成就。反而浪费了自己的生命。
How about you? Choosing to be the supporter in other people’s life, or being a leading actor in your life? 你呢?选择做别人生活里的配角,还是做自己生活里的主角?
内在美的重要性 The Importance of Inner Beauty Today, as the development of technology, people can change their faces by doing plastic surgery, because of the commercial ads, people are highly effected by the exaggerated facts that they can be the shining stars.So people pay special attention on the outlooks, they want to look perfect, as far as I am concerned, the true beauty is nothing with perfect looking, only the inner beauty makes you shining.In the fairly tale of Cinderella, the prince chooses the poor girl instead of the beautiful girls, because he admires Cinderella’s inner beauty, though she is nobody.Though it is just a story, it tells people that inner beauty makes one outstanding.People can make their faces perfect, but there is no way to fulfill their inner beauty by technology.Inner beauty is the most precious thing, beautiful outlook will fade away with the time, but inner beauty won’t, it only getting valuable.今天,随着科技的发展,人们可以通过做外科手术改变自己的外貌,由于商业广告,人们深深受到那些夸张效果的影响,相信自己可以成为耀眼的明星。因此人们很关注外表,他们想要让自己看起来完美,就我看来,真正的美丽和完美的外表无关,唯有内在美才能让你耀眼。在童话故事《灰姑娘》中,王子选择了那个可怜的女孩而不是那些好看的姑娘,因为他欣赏的是灰姑娘的内在美,虽然她没有地位。虽然这只是个故事,它告诉人们内在美让一个人出众。人们可以通过科技让他们的外表完美,但是内在美却是无法通过科技得到的。内在美是最宝贵的东西,美丽的外表会随着时间而消逝,但是内在美不会,它只会更加珍贵。
高中的爱情 Love in High School Love in high school is a very sensitive topic, the students in high school have come to the age of being mature, inside, they desire to love someone, but it is the awkward time.First, they need to focus their attention so that they can enter a better college, second, their parents are strongly objective to their love, the teachers even ban the love relationship between students.As a student, they have their own rights to love someone, the inner desire and the objection from parents and schools make them struggle to their emotions.In my opinion, high school students have so many pressure, they should put aside their love emotions for a while, they need to focus on the study, when high school time ends, they can choose their love.It is much easier, if you want to love at the time, then to love.No one will stop you.爱在高中来说是一个很敏感的话题,高中生已经来到了即将成熟的年龄,他们渴望去爱人,但是这也是一个尴尬的时间。第一,他们需要集中精力学习,以此来考取一个好的大学,第二,他们的父母强烈反对恋爱,老师甚至禁止学生谈恋爱。作为一名学生,他们有自己的权利去爱人,内心的欲望,父母和学校的反对,让他们在情感上做挣扎。在我看来,高中生有很多压力,他们应该暂时把感情放在一边,需要集中精力学习,当高中时光结束以后,他们可以选择去爱。这容易多了,如果你那时想要去爱,就去爱。没有人会阻止你。
第三篇:中考必考文学常识汇总
中考文学常识汇总
一、中国文学 ㈠先秦
1.孔子(名丘,字仲尼。)《论语》十则孔子是我国历史和著名的思想家、教育家、儒家学派的创始人。
《论语》是记录孔子及其弟子的言行的书,是一部语录体散文著作。《诗经》是我国最早的一部诗歌总集。
左丘明(春秋时鲁国史官)《曹刿论战》 《左传》又称《春秋左氏传》、《左氏春秋》。编年体史书,历史散文。
1. 列子,战国前期郑人,名寇,又名御寇。《列子》相传是列子所作,原书已亡佚,现在流传的本子是东晋张湛辑注的,内容驳杂,其中保存了一些先秦优秀的寓言和神话传说。2. 墨子(约前476-前390),名翟,相传为战国时期宋国人,墨家的创始人,主张兼爱、非攻、尚贤、节用。《墨子》为墨家经典之作。
3. 孟轲(约前372-前289),字子舆,战国时邹人,儒学大师,有“亚圣”之称。《孟子》是一部记录孟子言行的书,由孟轲及其弟子编成。孟子的主要主张是仁政、民贵、君轻。4. 庄周(约前369-前286),战国,古代著名思想家,道家学派代表人之一。《庄子》为他和其弟子所作,文学性强,多寓言,道家思想的重要著作。
5. 荀子(约前313-前238),名况,战国时赵国人,著名思想家。主张“法后王”“性恶论”。《荀子》为荀子和其弟子所作,是先秦儒家重要作品。
6. 韩非(?-公元前233),战国末期韩国的公子,喜欢研究刑名法术,是战国时代著名的思想家,先秦法家学说的集大成者。《韩非子》为法家重要著作。
7. 吕不韦(?-前235),战国时秦相。《吕氏春秋》相传是吕不韦召集门客编撰的,一名《吕览》,是先秦杂家的代表作。
8. 屈原(约前340-前278),名平,战国时楚国人,我国第一位伟大的爱国诗人,“骚体诗”(积极浪漫主义)创始人。著有《离骚》《九歌》《九章》等二十五篇。代表作《离骚》是我国古代最长的政治抒情诗。㈡两汉
1.司马迁(约前145-约前87),字子长,西汉史学家、文学家和思想家。著作《史记》是我国第一部纪传体通史,它包括12本纪(帝王传记)、30世家(诸侯传记)、70列传(著名人物传记)、10表、8书,共130篇。它与《汉书》《后汉书》《三国志》合称“四史”。鲁迅称赞《史记》是“史家之绝唱,无韵之离骚”。
2.刘向.西汉经学家、文学家。刘向按照国别编订整理了《战国策》
3.班固(32-92),东汉史学家、文学家。《汉书》是我国第一部纪传体断代史。4.乐府诗《孔雀东南飞》《陌上桑》
4.曹操(155-220),即魏武帝,字孟德,东汉末期的政治家、军事家、诗人,与其子曹丕、曹植合称“三曹”,为建安文学的代表作家。他的诗以慷慨悲壮见称。鲁迅称他是“一个改造
文章的祖师” ㈢魏晋南北朝
1.“三曹”:指曹操、曹丕、曹植(才高八斗)。2.诸葛亮 字孔明,号卧龙 《出师表》
三顾频烦天下计,两朝开济老臣心。出师未捷身先死,长使英雄泪满襟。出师一表真名世,千载谁堪伯仲间!非淡泊无以明志,非宁静无以致远。陈寿 字承祚,西晋史学家
代表作:《三国志》是一部纪传体断代史。王羲之(321-379),东晋书法家,有“书圣”之称。代表作《兰亭集序》。3.陶渊明(名潜,字元亮,号靖节先生,东晋诗人。)《归园田居》《饮酒》《桃花源记》 《五柳先生传》 谢灵运:
郦道元,北魏地理学家、文学家。著有富有文学价值的地理志《水经注》 范晔(南朝宋史学家)《后汉书》,它与《史记》、《汉书》、《三国志》合称为“四史”。刘义庆 南朝小说家。著有我国第一部笔记体小说《世说新语》 吴均 陶弘景 ㈣唐代
1.王勃 他与杨炯、卢照邻、骆宾王被称为“初唐四杰”。
王勃 代表作有《滕王阁序》等。杨炯 贺知章(字季真,自号“四明狂客”)《回乡偶书》 陈子昂 字伯玉 《登幽州台歌》 王之涣(字季陵。)《凉州词》
孟浩然、王维并称“王孟”,是“山水田园诗”的代表,多描写自然景物,诗风清新自然。王维 字摩诘
他的诗句被苏轼称为“诗中有画,画中有诗”。孟浩然
3.李白(字太白,号青莲居士。诗风雄奇豪放,想象丰富,语言流畅自然)有“诗仙”之称。艺术上具有浪漫主义风格。
4.杜甫(字子美,自称少陵野老,世称杜工部)诗圣 杜甫代表了现实主义诗歌艺术的高峰,被称为“诗史”。"三吏"."三别" 《茅屋为秋风所破歌》
5.岑参 边塞诗人:以王之涣、王昌龄、高适、岑参为代表,题材多反映边塞风光和军旅生活,风格悲壮宏伟,笔势豪健。
6.韩愈(字退之 世称韩昌黎。)与柳宗元倡导古文运动,列唐宋散文八大家之首。《马说》
唐宋八大家:唐代的韩愈、柳宗元、宋代的欧阳修、苏洵、苏轼、苏辙、王安石、曾巩。柳宗元 字子厚,河东解(今山西运城县)人,柳河东 唐代文学家。著有《柳河东集》。与韩愈一起倡导古文运动
7.刘禹锡 字梦得,被时人称为“诗豪” 《陋室铭》 铭:本来是古代刻在器物上警戒自己或歌颂功德的文字,后来发展成为和种形式短小、文字简洁的独立的文体。白居易(772-846),字乐天,晚号香山居士。唐代著名诗人。新乐府运动的倡导者,主张“文章合为时而著,歌诗合为事而作”。著有《白氏长庆集》。
王湾 李贺 字长吉,与李白、李商隐三人并称唐代“三李”。杜牧(803-852),字牧之,号樊川,唐代诗人、散文家。与李商隐齐名,有“小李杜”之称。著有《樊川文集》。代表作《阿房宫赋》《泊秦淮》等。李商隐(约813-858),字义山,唐代诗人。《夜雨寄北》 温庭筠 唐代诗人、词人。本名岐,字飞卿
诗词兼工,诗与李商隐齐名,并称“温李” 是花间词派的重要作家之一 李煜(937-978),南唐后主,世称“李后主”。以清丽精炼的语言,抒写复杂的思想感情,使词成为抒情言志的新体诗,对后世词坛影响极大。著有《南唐二主词》(包括其父李璟的词)。㈤宋代 1.范仲淹:(字希文,谥号文正。)《岳阳楼记》 晏殊:字同叔,北宋前期婉约派词人之一
主要作品有《珠玉词》。2.欧阳修(字永叔 号醉翁、六一居士。)作品《醉翁亭记》 3.周敦颐 《爱莲说》 说:古代的一种文体,可以说明事物,也可以发表议论或记事,跟现代的杂文或杂感相近。4.司马光 字君实 北宋 史学家 文学家
《资治通鉴》是我国古代最大的一部编年体通史。书名的意思是:“鉴于往事,资于治道”,即以历史的得失作为鉴诫来加强统治。《孙权劝学》 5.苏 轼(字子瞻,号东坡居士)北宋文学家 书画家 苏轼开创了豪放词派。《明月几时有》 王安石 字介甫,晚号半山;因封荆国公,世称王荆公。北宋文学家 政治家 周敦颐 6.李清照(号易安居士)两宋之交女词人,宋代婉约派中成就最高者。7.陆游 字务观 号放翁。南宋爱国诗人 朱熹 辛弃疾(字幼安 号稼轩。)豪放派词人苏辛 南宋“一代词宗” 《破阵子•醉里挑灯看剑》
6、[豪放派]宋词一大流派。由北宋苏轼开创,经南宋辛弃疾而达到高峰。豪放派词作题材广泛,气势雄浑,境界开阔,豪迈奔放。
7、[婉约派]宋词一大流派。代表作家有周邦彦、柳永、秦观、李清照等。婉约派词作题材较狭窄,多为男女恋情和个人遭遇,情思曲折,含蓄蕴藉,语言婉转绮丽。文天祥 字宋瑞
号文山 南宋政治家
(七)元代 元曲四大家:关汉卿、郑光祖、白朴、马致远。
马致远(1250-1323),号东篱,元代著名戏曲家和散曲作家。代表作《天净沙〃秋思》。张养浩
(八)明代 1.施耐庵(元末明初)《水浒传》又名《忠义水浒传》,《水浒传》是我国第一部优秀的描写农民革命斗争的章回体小说
章回体小说:我国古代长篇小说的主要形式。分回标目,故事连接,段落整齐。2.罗贯中 《三国演义》我国第一部优秀的长篇历史演义小说 3.吴承恩:《西游记》 我国第一部长篇神话小说 宋濂 袁宏道 字中郎,号石公,明代公安(今湖北公安)人。“公安三袁”之一《满井游记》 张岱 ㈧清代
1.蒲松龄(字留仙 号柳泉居士,世称聊斋先生)《狼》 《山市》 《聊斋志异》是我的历史上第一部文人创作的文言短篇小说集。2.吴敬梓 《范进中举》《儒林外史》是古典长篇讽刺小说。讽刺艺术最高成就。3.曹雪芹(名霑,字梦阮,号雪芹)《红楼梦》:又名《石头记》(曹雪芹著、高鹗续)。它以贾、史、王、薛四大家族为背景,以贾宝玉和林黛玉爱情悲剧为主要线索,并通过贾家荣宁二府由盛到衰的过程,揭示了封建制度必然崩溃的历史趋势。《红楼梦》代表了中国古典小说的最高峰。龚自珍 清代思想家、文学家 《己亥杂诗》 落红不是无情物,化作春泥更护花 我劝天公重抖擞,不拘一格降人才
(九)现代 1.鲁迅(原名周树人,字豫才。)《孔乙己》、《故乡》、《社戏》选自小说集《呐喊》;《从百草园到三味书屋》、《藤野先生》选自《朝花夕拾》。《狂人日记》是我国现代文学史上第一篇反封建白话小说。《阿Q正传》中的阿Q是世界文学史上不朽的典型。
2.郭沫若(原名郭开贞)他的第一部诗集《女神》是我国新诗运动的奠基石。代表作有历史剧《屈原》等。3.朱自清(字佩弦)朱自清的散文语言洗炼,文笔秀丽。《背影》《春》 4.老 舍(原名舒庆春,字舍予。)长篇小说《四世同堂》、《骆驼祥子》,话剧《茶馆》等。5.冰心(原名谢婉莹,著名女作家、儿童文学家。)代表作:诗集《繁星 春水》,散文集《寄小读者》。
6.巴金(原名李尧棠,字芾甘)激流三部曲:《家》、《春》、《秋》。爱情三部曲:《雾》、《雨》、《电》 7.艾青(原名蒋海澄)《我爱这土地》 8.孙 犁 课文《荷花淀》选自《白洋淀纪事》。淡雅疏朗的诗情画意,朴素清新的泥土气息,有“诗体小说”之称。
第四篇:中考必考十本名著
中考必考十本名著:
《汤姆·索亚历险记》
《钢铁是怎样炼成的》
《男生贾里全传》
《水浒传》
《西游记》
《朝花夕拾》
《格列佛游记》
《骆驼祥子》
《八十天环游地球》
《鲁滨逊漂流记》
第五篇:2023最新整理中考填空题 (必考)
2023最新整理中考填空题
1.已知实数x,y满足|x−4|+y−8=0,则以x,y的值为两边长的等腰三角形的周长是
2.在△ABC中,∠A=50°,∠B=30°,点D在AB边上,连接CD,若△ACD为直角三角形,则∠BCD的度数为
度
3.如图,工人师傅用扳手拧形状为正六边形的螺帽,现测得扳手的开口宽度b=3cm,则螺帽边长a=
cm.
4.如图,在矩形ABCD中,BD是对角线,AE⊥BD,垂足为E,连接CE.若∠ADB=30°,则tan∠DEC的值为
.
5.若一个反比例函数的图象经过点A(m,m)和B(2m,﹣1),则这个反比例函数的表达式为
.
6.函数y=2x+11−x中自变量x的取值范围是
.
7.已知关于x的方程ax2+2x﹣3=0有两个不相等的实数根,则a的取值范围是
.
8.若实数x,y满足x+y2=3,设s=x2+8y2,则s的取值范围是
.
9.关于x的分式方程1x−2+2=1−k2−x的解为正实数,则k的取值范围是
.
10.三角形的两边长分别为3和6,第三边的长是方程x2﹣6x+8=0的解,则此三角形的周长是
.
11.已知关于x的方程2x=m的解满足x−y=3−nx+2y=5n(0<n<3),若y>1,则m的取值范围是
.
12.若一个扇形的弧长是2πcm,面积是6πcm2,则扇形的圆心角是
度.
13.如图,直线y=−34x﹣3交x轴于点A,交y轴于点B,点P是x轴上一动点,以点P为圆心,以1个单位长度为半径作⊙P,当⊙P与直线AB相切时,点P的坐标是
.
14.AB是⊙O的弦,OM⊥AB,垂足为M,连接OA.若△AOM中有一个角是30°,OM=23,则弦AB的长为
.
15.如图,正六边形A1A2A3A4A5A6内部有一个正五边形B1B2B3B4B5,且A3A4∥B3B4,直线l经过B2、B3,则直线l与A1A2的夹角α=
°.
16.如图所示,AB是⊙O的直径,弦CD⊥AB于H,∠A=30°,CD=23,则⊙O的半径是
.
17.如图,半径为3的⊙O与边长为8的等边三角形ABC的两边AB、BC都相切,连接OC,则tan∠OCB=
.
18.如图,点A、B、C在⊙O上,BC=6,∠BAC=30°,则⊙O的半径为
.
19.在⊙O中,若弦BC垂直平分半径OA,则弦BC所对的圆周角等于
°.
20.定义:等腰三角形的顶角与其一个底角的度数的比值k称为这个等腰三角形的“特征值”.若等腰△ABC中,∠A=80°,则它的特征值k=
.
21.已知正多边形的一个外角等于40°,则这个正多边形的内角和的度数为
.
22.二次函数y=ax2+bx+c(a≠0)的图象如图所示,下列结论:①2a+b=0;②a+c>b;③抛物线与x轴的另一个交点为(3,0);④abc>0.其中正确的结论是
(填写序号).
23.如图,我们把一个半圆与抛物线的一部分围成的封闭图形称为“果圆”.已知点A、B、C、D分别是“果圆”与坐标轴的交点,抛物线的解析式为y=x2﹣2x﹣3,AB为半圆的直径,则这个“果圆”被y轴截得的弦CD的长为
.
24.在△ABC中,AB=34,AC=5,若BC边上的高等于3,则BC边的长为
.
25.如图,AB是⊙O的弦,AB=6,点C是⊙O上的一个动点,且∠ACB=45°.若点M,N分别是AB,BC的中点,则MN长的最大值是
.
26.以正方形ABCD的边AD作等边△ADE,则∠BEC的度数是
.
27.如图,在△ABC中,BA,BC分别为⊙O的切线,点E和点C为切线点,线段AC经过圆心O且与⊙O相交于D、C两点,若tanA=34,AD=2,则BO的长为
.
28.如图,矩形ABCD中AB=3,BC=3,E为线段AB上一动点,连接CE,则12AE+CE的最小值为
.
29.一个圆锥的侧面展开图是半径为9cm,圆心角为120°的扇形,则此圆锥底面圆的半径为
cm.
30.如图,正方形ABCD的边长为2,点E,F分别在边AD,CD上,若∠EBF=45°,则△EDF的周长等于
.
31.如图,已知点A是反比例函数y=−2x的图象上的一个动点,连接OA,若将线段OA绕点O顺时针旋转90°得到线段OB,则点B所在的反比例函数表达式为
.
32.如图,在Rt△ABC中,AB=AC=4,点E,F分别是AB,AC的中点,点P是扇形AEF的EF上任意一点,连接BP,CP,则12BP+CP的最小值是 .
33.如图,A、B、C分别是线段A1B,B1C,C1A的中点,若△A1B1C1的面积是14,那么△ABC的面积是
.
34.如图,在△ABC中,D、E分别是AB和AC的中点,F是BC延长线上一点,DF平分CE于点G,CF=1,则BC= 2,△ADE与△ABC的周长之比为 1:2,△CFG与△BFD的面积之比为
.
35.古希腊数学家把数1,3,6,10,15,21,…叫做三角数,它有一定的规律性.若把第一个三角数记为a1,第二个三角数记为a2…,第n个三角数记为an,计算a1+a2,a2+a3,a3+a4,…由此推算a399+a400=
.
36.已知等腰三角形的周长为20,腰长为x,x的取值范围是
.
37.如图,在△ABC中,AB=20cm,AC=12cm,点P从点B出发以每秒3cm速度向点A运动,点Q从点A同时出发以每秒2cm速度向点C运动,其中一个动点到达端点,另一个动点也随之停止,当△APQ是以PQ为底的等腰三角形时,运动的时间是
秒.
38.已知⊙O的半径为10cm,AB,CD是⊙O的两条弦,AB∥CD,AB=16cm,CD=12cm,则弦AB和CD之间的距离是
cm.
39.已知△ABC中,AB=5,sinB=35,AC=4,则BC=
.
40.如图,弦AB把圆分成1:3,则弦AB所对圆周角的度数为
.
41.直角三角形的两边长4cm、5cm,则第三边的长
.
42.已知:点C是线段AB的黄金分割点,AB=2,则AC=
.
43.81的平方根为
.
44.比较大小:﹣32
﹣23.
45.已知xy=3,那么xyx+yxy的值是 .
46.若a=(π﹣2020)0,b=﹣(12)﹣1,c=|﹣3|,则a,b,c的大小关系为 .(用“<”号连接)
47.若单项式2xmy3与3xym+n是同类项,则2m+n的值为 .
48.如图,直线l⊥x轴于点P,且与反比例函数y1=k1x(x>0)及y2=k2x(x>0)的图象分别交于点A,B,连接OA,OB,已知△OAB的面积为3,则k1﹣k2= .
49.如图,从甲楼底部A处测得乙楼顶部C处的仰角是30°,从甲楼顶部B处测得乙楼底部D处的俯角是45°,已知乙楼的高CD=20m,则甲楼的高AB的高度是 m.(结果保留根号)
50.反比例函数y=kx(x<0)的图象如图所示,下列关于该函数图象的四个结论:①k>0;②当x<0时,y随x的增大而增大;③该函数图象关于直线y=﹣x对称;④若点(﹣2,3)在该反比例函数图象上,则点(﹣1,6)也在该函数的图象上.其中正确结论的个数有 个.
冲刺2021中考选择题易错50题
1.如图,正方形ABCD和正方形CGEF的边长分别是2和3,且点B,C,G在同一直线上,M是线段AE的中点,连接MF,则MF的长为()
A.2
B.22
C.22
D.24
2.如图,在Rt△ABC中,∠ACB=90°,CB=7,AC=9,以C为圆心、3为半径作⊙C,P为⊙C上一动点,连接AP、BP,则13AP+BP的最小值为()
A.7
B.52
C.4+10
D.213
3.如图,在△ABC中,点D在AB边上,若BC=3,BD=2,且∠BCD=∠A,则线段AD的长为()
A.2
B.52
C.3
D.92
4.如图,在▱ABCD中,AB=10,AD=15,∠BAD的平分线交BC于点E,交DC的延长线于点F,BG⊥AE于点G,若BG=8,则△CEF的周长为()
A.16
B.17
C.24
D.25
5.如图,点A,B的坐标分别为A(2,0),B(0,2),点C为坐标平面内一点,BC=1,点M为线段AC的中点,连接OM,则OM的最大值为()
A.2+1
B.2+12
C.22+1
D.22−12
6.如图,正方形ABCD中,点E、F分别在边CD,AD上,BE与CF交于点G.若BC=4,DE=AF=1,则GF的长为()
A.135
B.125
C.195
D.165
7.如图,在矩形ABCD中,AB=3,BC=10,点E在BC边上,DF⊥AE,垂足为F.若DF=6,则线段EF的长为()
A.2
B.3
C.4
D.5
8.如图,正方形ABCD的边长为2,将长为2的线段QR的两端放在正方形的相邻的两边上同时滑动.如果点Q从点A出发,沿图中所示方向按A⇒B⇒C⇒D⇒A滑动到A止,同时点R从点B出发,沿图中所示方向按B⇒C⇒D⇒A⇒B滑动到B止,在这个过程中,线段QR的中点M所经过的路线围成的图形的面积为()
A.2
B.4﹣π
C.π
D.π﹣1
9.如图,直角△ABC中,∠B=30°,点O是△ABC的重心,连接CO并延长交AB于点E,过点E作EF⊥AB交BC于点F,连接AF交CE于点M,则MOMF的值为()
A.12
B.54
C.23
D.33
10.小明和小华是同班同学,也是邻居,某日早晨,小明7:40先出发去学校,走了一段后,在途中停下吃了早餐,后来发现上学时间快到了,就跑步到学校;小华离家后直接乘公交汽车到了学校.如图是他们从家到学校已走的路程s(米)和所用时间t(分钟)的关系图.则下列说法中错误的是()
A.小明吃早餐用时5分钟
B.小华到学校的平均速度是240米/分
C.小明跑步的平均速度是100米/分
D.小华到学校的时间是7:55
11.已知x﹣2y=3,则代数式6﹣2x+4y的值为()
A.0
B.﹣1
C.﹣3
D.3
12.若直线y=kx+b(k≠0)经过点A(2,﹣3),且与y轴的交点在x轴上方,则k的取值范围是()
A.k>32
B.k>−32
C.k<−32
D.k<32
13.如图,已知二次函数y=ax2+bx+c(a≠0)的图象如图所示,有下列5个结论:①abc>0;②b﹣a>c;③4a+2b+c>0;④3a>﹣c;⑤a+b>m(am+b)(m≠1的实数).其中正确结论的有()
A.①②③
B.②③⑤
C.②③④
D.③④⑤
14.如图,一次函数y=2x与反比例函数y=kx(k>0)的图象交于A,B两点,点P在以C(﹣2,0)为圆心,1为半径的⊙C上,Q是AP的中点,已知OQ长的最大值为32,则k的值为()
A.4932
B.2518
C.3225
D.98
15.已知直线y1=kx+1(k<0)与直线y2=mx(m>0)的交点坐标为(12,12m),则不等式组mx﹣2<kx+1<mx的解集为()
A.x>12
B.12<x<32
C.x<32
D.0<x<32
16.若点A(﹣4,m﹣3),B(2n,1)关于x轴对称,则()
A.m=2,n=0
B.m=2,n=﹣2
C.m=4,n=2
D.m=4,n=﹣2
17.如图,△ABC中,AD是BC边上的高,AE、BF分别是∠BAC、∠ABC的平分线,∠BAC=50°,∠ABC=60°,则∠EAD+∠ACD=()
A.75°
B.80°
C.85°
D.90°
18.如图,下列四个条件中,能判定平行四边形ABCD为菱形的是()
A.∠ADB=90°
B.OA=OB
C.OA=OC
D.AB=BC
19.如图,Rt△ABC中,∠A=30°,∠ABC=90°.将Rt△ABC绕点B逆时针方向旋转得到△A'BC'.此时恰好点C在A'C'上,A'B交AC于点E,则△ABE与△ABC的面积之比为()
A.13
B.12
C.23
D.34
20.古希腊数学家欧多克索斯在深入研究比例理论时,提出了分线段的“中末比”问题:点G将一线段MN分为两线段MG,GN,使得其中较长的一段MG是全长MN与较短的一段GN的比例中项,即满足MGMN=GNMG=5−12,后人把5−12这个数称为“黄金分割”数,把点G称为线段MN的“黄金分割”点.如图,在△ABC中,已知AB=AC=3,BC=4,若D,E是边BC的两个“黄金分割”点,则△ADE的面积为()
A.10﹣45
B.35−5
C.5−252
D.20﹣85
21.如图,在△ABC中,∠C=90°,AC=BC=3cm,动点P从点A出发,以2cm/s的速度沿AB方向运动到点B,动点Q同时从点A出发,以1cm/s的速度沿折线AC→CB方向运动到点B.设△APQ的面积为y(cm2),运动时间为x(s),则下列图象能反映y与x之间关系的是()
A.
B.C.
D.
22.若|x+2|+(y﹣3)2=0,则x﹣y的值为()
A.﹣5
B.5
C.1
D.﹣1
23.在﹣1,0,π,3这四个数中,最大的数是()
A.﹣1
B.0
C.π
D.3
24.下列不等式错误的是()
A.﹣2<﹣1
B.π<17
C.52>10
D.13>0.3
25.若y=2x有意义,则x的取值范围是()
A.x>0
B.x≥0
C.x>2
D.x≥2
26.如图1,将边长为x的大正方形剪去一个边长为1的小正方形(阴影部分),并将剩余部分沿虚线剪开,得到两个长方形,再将这两个长方形拼成图2所示长方形.这两个图能解释下列哪个等式()
A.x2﹣2x+1=(x﹣1)2
B.x2﹣1=(x+1)(x﹣1)
C.x2+2x+1=(x+1)2
D.x2﹣x=x(x﹣1)
27.下列各式中正确的是()
A.﹣|﹣2|=2
B.4=±2
C.39=3
D.30=1
28.如果a<b,c<0,那么下列不等式中不成立的是()
A.a+c<b+c
B.ac>bc
C.ac+1>bc+1
D.ac2>bc2
29.点C是线段AB的中点,点D是线段AC的三等分点.若线段AB=12cm,则线段BD的长为()
A.10cm
B.8cm
C.10cm或8cm
D.2cm或4cm
30.如果一个角的度数比它补角的2倍多30°,那么这个角的度数是()
A.50°
B.70°
C.130°
D.160°
31.如图,在菱形ABCD中,E、F分别是AB、CD上的点,且AE=CF,EF与AC相交于点O,连接BO.若∠DAC=36°,则∠OBC的度数为()
A.36°
B.54°
C.64°
D.72°
32.如图,已知A为反比例函数y=kx(x<0)的图象上一点,过点A作AB⊥y轴,垂足为B.若△OAB的面积为2,则k的值为()
A.2
B.﹣2
C.4
D.﹣4
33.已知抛物线y=x2﹣2mx﹣4(m>0)的顶点M关于坐标原点O的对称点为M′,若点M′在这条抛物线上,则点M的坐标为()
A.(1,﹣5)
B.(3,﹣13)
C.(2,﹣8)
D.(4,﹣20)
34.如图,⊙O是△ABC的外接圆,AD是⊙O的直径,若⊙O的半径为32,AC=2,则sinB的值是()
A.23
B.32
C.34
D.43
35.如图,是一个几何体的三视图,根据图中所示数据计算这个几何体的侧面积是()
A.π
B.2π
C.4π
D.5π
36.如图,在△ABC中,AC=8,BC=12,AF交BC于F,E为AB的中点,CD平分∠ACB,且CD⊥AF,垂足为D,连接DE,则DE的长为()
A.2
B.52
C.3
D.4
37.点A(x1,y1),B(x2,y2),C(x3,y3)都是反比例函数y=−3x的图象上,若x1<x2<0<x3,则y1,y2,y3的大小关系是()
A.y3<y1<y2
B.y1<y2<y3
C.y3<y2<y1
D.y2<y1<y3
38.观察等式:2+22=23﹣2;2+22+23=24﹣2;2+22+23+24=25﹣2;…已知按一定规律排列的一组数:2100,2101,2102,…,2199,2200,若2100=S,用含S的式子表示这组数据的和是()
A.2S2﹣S
B.2S2+S
C.2S2﹣2S
D.2S2﹣2S﹣2
39.若关于x的分式方程2x−1=mx有正整数解,则整数m的值是()
A.3
B.5
C.3或5
D.3或4
40.已知二次函数y=ax2+bx+c的图象如图所示,则下列说法正确的是()
A.ac<0
B.b<0
C.b2﹣4ac<0
D.a+b+c<0
41.如图,在矩形ABCD中,点F在AD上,点E在BC上,把这个矩形沿EF折叠后,使点D恰好落在BC边上的G点处,若矩形面积为43且∠AFG=60°,GE=2BG,则折痕EF的长为()
A.1
B.3
C.2
D.23
42.如图,Rt△ABC中,∠C=90°,点D在AC上,∠DBC=∠A.若AC=4,cosA=45,则BD的长度为()
A.94
B.125
C.154
D.4
43.下列整数中,与10−13最接近的是()
A.4
B.5
C.6
D.7
44.如图,在直角坐标系中,△OAB的顶点为O(0,0),A(4,3),B(3,0).以点O为位似中心,在第三象限内作与△OAB的位似比为13的位似图形△OCD,则点C的坐标为()
A.(﹣1,﹣1)
B.(−43,﹣1)
C.(﹣1,−43)
D.(﹣2,﹣1)
45.若m2+2m=1,则4m2+8m﹣3的值是()
A.4
B.3
C.2
D.1
46.4的算术平方根是()
A.±2
B.2
C.±2
D.2
47.负实数a的倒数是()
A.﹣a
B.1a
C.−1a
D.a
48.81的平方根是()
A.±3
B.3
C.±9
D.9
49.等腰三角形一腰上的高与另一腰所在直线的夹角为30°,则这个等腰三角形的顶角为()
A.60°或120°
B.30°或150°
C.30°或120°
D.60°
50.函数y=x+2x−1中自变量x的取值范围是()
A.x≥﹣2
B.x≥﹣2且x≠1
C.x≠1
D.x≥﹣2或x≠1
41.如图,在矩形ABCD中,点F在AD上,点E在BC上,把这个矩形沿EF折叠后,使点D恰好落在BC边上的G点处,若矩形面积为43且∠AFG=60°,GE=2BG,则折痕EF的长为()
A.1
B.3
C.2
D.23
42.如图,Rt△ABC中,∠C=90°,点D在AC上,∠DBC=∠A.若AC=4,cosA=45,则BD的长度为()
A.94
B.125
C.154
D.4
43.下列整数中,与10−13最接近的是()
A.4
B.5
C.6
D.7
44.如图,在直角坐标系中,△OAB的顶点为O(0,0),A(4,3),B(3,0).以点O为位似中心,在第三象限内作与△OAB的位似比为13的位似图形△OCD,则点C的坐标为()
A.(﹣1,﹣1)
B.(−43,﹣1)
C.(﹣1,−43)
D.(﹣2,﹣1)
45.若m2+2m=1,则4m2+8m﹣3的值是()
A.4
B.3
C.2
D.1
46.4的算术平方根是()
A.±2
B.2
C.±2
D.2
47.负实数a的倒数是()
A.﹣a
B.1a
C.−1a
D.a
48.81的平方根是()
A.±3
B.3
C.±9
D.9
49.等腰三角形一腰上的高与另一腰所在直线的夹角为30°,则这个等腰三角形的顶角为()
A.60°或120°
B.30°或150°
C.30°或120°
D.60°
50.函数y=x+2x−1中自变量x的取值范围是()
A.x≥﹣2
B.x≥﹣2且x≠1
C.x≠1
D.x≥﹣2或x≠1
41.如图,在矩形ABCD中,点F在AD上,点E在BC上,把这个矩形沿EF折叠后,使点D恰好落在BC边上的G点处,若矩形面积为43且∠AFG=60°,GE=2BG,则折痕EF的长为()
A.1
B.3
C.2
D.23
42.如图,Rt△ABC中,∠C=90°,点D在AC上,∠DBC=∠A.若AC=4,cosA=45,则BD的长度为()
A.94
B.125
C.154
D.4
43.下列整数中,与10−13最接近的是()
A.4
B.5
C.6
D.7
44.如图,在直角坐标系中,△OAB的顶点为O(0,0),A(4,3),B(3,0).以点O为位似中心,在第三象限内作与△OAB的位似比为13的位似图形△OCD,则点C的坐标为()
A.(﹣1,﹣1)
B.(−43,﹣1)
C.(﹣1,−43)
D.(﹣2,﹣1)
45.若m2+2m=1,则4m2+8m﹣3的值是()
A.4
B.3
C.2
D.1
46.4的算术平方根是()
A.±2
B.2
C.±2
D.2
47.负实数a的倒数是()
A.﹣a
B.1a
C.−1a
D.a
48.81的平方根是()
A.±3
B.3
C.±9
D.9
49.等腰三角形一腰上的高与另一腰所在直线的夹角为30°,则这个等腰三角形的顶角为()
A.60°或120°
B.30°或150°
C.30°或120°
D.60°
50.函数y=x+2x−1中自变量x的取值范围是()
A.x≥﹣2
B.x≥﹣2且x≠1
C.x≠1
D.x≥﹣2或x≠1
41.如图,在矩形ABCD中,点F在AD上,点E在BC上,把这个矩形沿EF折叠后,使点D恰好落在BC边上的G点处,若矩形面积为43且∠AFG=60°,GE=2BG,则折痕EF的长为()
A.1
B.3
C.2
D.23
42.如图,Rt△ABC中,∠C=90°,点D在AC上,∠DBC=∠A.若AC=4,cosA=45,则BD的长度为()
A.94
B.125
C.154
D.4
43.下列整数中,与10−13最接近的是()
A.4
B.5
C.6
D.7
44.如图,在直角坐标系中,△OAB的顶点为O(0,0),A(4,3),B(3,0).以点O为位似中心,在第三象限内作与△OAB的位似比为13的位似图形△OCD,则点C的坐标为()
A.(﹣1,﹣1)
B.(−43,﹣1)
C.(﹣1,−43)
D.(﹣2,﹣1)
45.若m2+2m=1,则4m2+8m﹣3的值是()
A.4
B.3
C.2
D.1
46.4的算术平方根是()
A.±2
B.2
C.±2
D.2
47.负实数a的倒数是()
A.﹣a
B.1a
C.−1a
D.a
48.81的平方根是()
A.±3
B.3
C.±9
D.9
49.等腰三角形一腰上的高与另一腰所在直线的夹角为30°,则这个等腰三角形的顶角为()
A.60°或120°
B.30°或150°
C.30°或120°
D.60°
50.函数y=x+2x−1中自变量x的取值范围是()
A.x≥﹣2
B.x≥﹣2且x≠1
C.x≠1
D.x≥﹣2或x≠1
41.如图,在矩形ABCD中,点F在AD上,点E在BC上,把这个矩形沿EF折叠后,使点D恰好落在BC边上的G点处,若矩形面积为43且∠AFG=60°,GE=2BG,则折痕EF的长为()
A.1
B.3
C.2
D.23
42.如图,Rt△ABC中,∠C=90°,点D在AC上,∠DBC=∠A.若AC=4,cosA=45,则BD的长度为()
A.94
B.125
C.154
D.4
43.下列整数中,与10−13最接近的是()
A.4
B.5
C.6
D.7
44.如图,在直角坐标系中,△OAB的顶点为O(0,0),A(4,3),B(3,0).以点O为位似中心,在第三象限内作与△OAB的位似比为13的位似图形△OCD,则点C的坐标为()
A.(﹣1,﹣1)
B.(−43,﹣1)
C.(﹣1,−43)
D.(﹣2,﹣1)
45.若m2+2m=1,则4m2+8m﹣3的值是()
A.4
B.3
C.2
D.1
46.4的算术平方根是()
A.±2
B.2
C.±2
D.2
47.负实数a的倒数是()
A.﹣a
B.1a
C.−1a
D.a
48.81的平方根是()
A.±3
B.3
C.±9
D.9
49.等腰三角形一腰上的高与另一腰所在直线的夹角为30°,则这个等腰三角形的顶角为()
A.60°或120°
B.30°或150°
C.30°或120°
D.60°
50.函数y=x+2x−1中自变量x的取值范围是()
A.x≥﹣2
B.x≥﹣2且x≠1
C.x≠1
D.x≥﹣2或x≠1
41.如图,在矩形ABCD中,点F在AD上,点E在BC上,把这个矩形沿EF折叠后,使点D恰好落在BC边上的G点处,若矩形面积为43且∠AFG=60°,GE=2BG,则折痕EF的长为()
A.1
B.3
C.2
D.23
42.如图,Rt△ABC中,∠C=90°,点D在AC上,∠DBC=∠A.若AC=4,cosA=45,则BD的长度为()
A.94
B.125
C.154
D.4
43.下列整数中,与10−13最接近的是()
A.4
B.5
C.6
D.7
44.如图,在直角坐标系中,△OAB的顶点为O(0,0),A(4,3),B(3,0).以点O为位似中心,在第三象限内作与△OAB的位似比为13的位似图形△OCD,则点C的坐标为()
A.(﹣1,﹣1)
B.(−43,﹣1)
C.(﹣1,−43)
D.(﹣2,﹣1)
45.若m2+2m=1,则4m2+8m﹣3的值是()
A.4
B.3
C.2
D.1
46.4的算术平方根是()
A.±2
B.2
C.±2
D.2
47.负实数a的倒数是()
A.﹣a
B.1a
C.−1a
D.a
48.81的平方根是()
A.±3
B.3
C.±9
D.9
49.等腰三角形一腰上的高与另一腰所在直线的夹角为30°,则这个等腰三角形的顶角为()
A.60°或120°
B.30°或150°
C.30°或120°
D.60°
50.函数y=x+2x−1中自变量x的取值范围是()
A.x≥﹣2
B.x≥﹣2且x≠1
C.x≠1
D.x≥﹣2或x≠1