第一篇：英语口语演讲：孝顺
一、名词解释
尾索动物；逆行变态；次生颌；韦伯氏器；洄游
二、填空
1、头索动物终生具有______、_____、____以及_____等典型脊索动物的特征。
2、口纲动物是现存的脊椎动物中最原始的一类没有_______和______又称无颌类。
3、硬骨类鱼头和躯干之间_______为界，躯干和尾的分界线是_______和________。
4、初生颌**一对**位于上方的________和一对位于下方的________组成。
5、两栖类的脊柱由_______、________、_________和________。
6、原索动物包括_________、_________。
7、在身体前部________两侧各有一条由皮肤下垂形成的_________称为腹褶
8、**纲体被________。以_______呼吸以_______作为运动****凭______摄食的变**水生脊椎动物。
9、鱼鳞作为_______、________、_________。
10、雄蛙在繁殖季节有_________。
三、简述题
1、脊索动物门的主要特征？
2、脊椎动物的主要特征？
3、鱼类颌的主要意义？
4、分别举出由皮肤、肠管、鳃上器、气囊作为辅助呼吸器****鱼类?
5、举出10个两栖纲的动物！
四、判断题
1、颌齿的咽齿发达程度成负相关（）
2、咽式呼吸的意义是充分利用吸入氧气减少失水（）
3、两栖类适应于陆生的特征表现在眼角膜主凹形（）
4、柄海的血管无动脉和静脉之分，血液双向运动（）
5、鱼类以舌颌骨将下颌悬挂于脑**的形式称为舌接式（）
五、画图题
画出硬骨鱼的躯干椎和尾椎
答案
一、名词解释
（1）尾索动物：多数在幼体时期是自由游泳的，具有脊索动物特征但脊索只在尾部存在；
（2）逆行变态：柄海鞘经变态，失去一些重要结构，形体变的更为简单；
（3）次生颌：硬骨鱼类咽颅第一对颌弓的上颌被前颌骨和颌骨取代，下颌被齿骨和隅骨取代。
（4）韦伯氏器：鲤形目鱼类在鳔与内耳之间依靠由舟骨、间插骨、三脚骨等骨组成的结构，具有特殊感觉功能，能感受高频率、低强度的声音。
（5）洄游：某些鱼类在生命周期的一定时期会有规律的集群，并沿着一定路线作距离不等的迁移活动，以满足重要的生命活动中生殖，索饵、越冬等重要的特殊的适宜条件，并在经过一段时期后又重返原地。
二、填空题
1、脊索、背神经管。咽鳃裂，肛后尾
2、上下颌、成对附肢
3、鳃盖后缘，肛门，泄殖孔
4、腭方软骨，麦氏软骨
5、颈椎，躯干椎，荐椎和尾椎
6、头索动物和尾索功能7、8、鳞片、鳃、鳍、上下颌
9、骨；鳞，盾鳞，硬鳞
10、婚瘤
三、简述题，1、①脊索；②背神经管；③咽鳃裂；④如果具有尾，总是位于肛门后方称为肛后尾； ⑤心脏位于消化管的腹面循环系统为闭管式。
2、（1）神经和感官系统发达；（2）脊柱代替了脊索，成为身体的有力支柱，同时保护着脊髓；
（3）水生脊椎动物用鳃呼吸，鳃裂终生存在；陆生脊椎动物只在胚胎期间出现鳃裂，成体后用肺呼吸；
（4）除圆口类外，均出现了能动的上下颌；（5）循环系统完善；
（6）除圆口类外出现了成对的附肢作为运动器官。
3、①用上下颌构成的口作为索食工具，主动捕食
②口中的牙撕咬和压研食物
③攻击、防御、营巢、求偶、钻水及呼吸的工具
④促进运动器官、感觉器官及其他器官的发育
4、皮肤：鳗鲡
肠管：泥鳅
鳃上器：乌鱼
气囊：肺鱼
5、略
四、判断题
1、×
2、√
3、×
4、√
5、√
五、画图题P339略
第二篇：英语口语演讲
today i will read a love letter.it's written to a boy.there's so much i want to say to you , but i'm not sure where i should begin.may be you don't remember me , no matter.i could say all those things and all would be true ,but as i reread them , holding your hand and watching for your elusive smile.do you know there is someone thinking of you and caring you all the time ? your smiling eyes are just like the sparking stars hanging on the curtain of my heart.meeting you was fate , and falling in love with you was out of my control.you are everything to me , and i was so blessed when god sent you here for me.coffee is lonely without cups , i am lonely without you.every day without you is like a book without pages.i'll think of you every step of the way.it's you that led me out of the loneliness when i was lost in my mind.if we can only encounter each other rather than stay with each other , when i wish we had never encountered.love is the greatest refreshment in life.you make my heart smile.i hope everyone can understand this love letter.because when love is not madness , it is not love.finally , this love letter , i want to give present a boy , tell him , i like him.thank you.今天，我将要念一封写给一位男生的情书。
有好多事想告诉你，不过不确定应该从哪里开始。也许你不记得我，不过没有关系。这些都是我想说的话，而且都是认真的，并且等着你在不经意间对我微笑。
你知道么，有个人时时想念你，惦念你?你含笑的眼睛，像星光闪闪，缀在我的心幕，夜夜闪亮。
遇见你是命运的安排，而爱上你是我的情不自禁。你是我的一切，我是如此幸运，上帝让你来到我的身边。
没有杯子，咖啡是寂寞的，没有你，我是孤独的。没有你的日子，就像一本没有书页的书。我会想你，在漫漫长路的每一步。
你带我走出寂寞。如果我们只是遇见，不能停留，那么不如不见。爱情是生活的提神剂。我的心因你而笑。
我希望每个人都能理解这封情书，因为如果爱不疯狂，那就不是爱了。
最后，这封情书，我想送给在座的一位男生，告诉他，我喜欢他。
谢谢。
第三篇：英语口语演讲
Hello, everyone!Thank you very much for allowing me to have this great opportunity to welcome the students from the United States who are going to study in our class for the next whole semester.As the monitor of the class, I represent all the students in our class to welcome you to join this party.I hope that you can enjoy yourselves during the time you staying in china, and I hope that you would have a wonderful time here with the whole class.You know that you are all welcomed here with opened arms and what we want to say to you is that: Welcome to your new family!Finally, I wish you all have a good memory in this school and enjoy your study and stay here and have a lot of fun tonight!Thank you very much!
第四篇：英语口语演讲
1.1.)In your opinion, what is a materialist? What is an idealist? Which one do you think you are and why?
Materialist usually shows great interest in material possessions such as money and wealth than in spiritual matters such as art and knowledge.Idealism refers to the quality or habit of living according to one’s ideals, high principles and perfect standards.They sometimes live in a way that is impractical or show a lack of the real world.As far as I am concern, I am a materialist.As we live in a materialistic society, we are trained from our earliest years to be acquisitive.Our possessions are clearly labeled from our childhood.It does not surprise when we grow up, the money you earn is the sign of success.People around us keep telling us, try your best to study hard, go to a good colleague, so that you can find a good job and get a high salary.I follow what they said.So I am a materialist now.We can’t enjoy our life by dreaming all day.If we want to gain sth, we must try to do sth.I still remember when I was a child, I want to earn a lot of money, so that I can travel around the world, enjoy the good food and beautiful scenery and fashionable cloth, now I am trying my best to achieve it, with all my efforts.You see, I won’t sitting all day and dreaming about my future, I take some actions.Actions speak louder than words, nothing will change without taking actions.As the says going, if we want to make our dreams cometrue, the first thing you should do is wake up.2.)How do you think society looks at the roles between men and women? Do you think each gender has specific roles? Or do you believe that men and women are equal?
Men and women are created to be equal, and thus they should be treated equally In many countries in the world, women are being looked down upon.It is more difficult for them to get work than men.In order to get a job, they sometimes have to tell a lie.That's unfair.In fact, women can work no worse even better than men.Women should not be treated different from men,according to statistics, there is no basic difference between the standard and quality of work performed by men and women who do the same work.This is an unfair fact: most of the top position in society, like company directors, judges, university professors, etc.are occupied by men.Women should no longer be treated as the inferior sex.They should stand side by side with men and define their roles in society, in which they can choose to work outside or stay at home and in which they will have more time to develop their own interests.Women should be given an equal chance of education in order to compete with men.Men should also take an equal share in housework so as to liberate women from kitchen.It is unreasonable for authorities to refuse to promote capable women to important position, just because they have children to bring up.In a word.Men and women shouldn’t be treated differently as they are born to be equal.3.)What do you think is the most important thing in a job interview? How should you appear and act when in an interview?
interview provides employers opportunities to look for the proper persons to be competent to the positions.It plays an important role in the process of hiring.Although that is a challenge for everyone, we still can find out the rules partly.The most important thing in the interview are appearance and confidence.In a certain degree, appearance gives the interviewers the first impressions and, essentially, it influences the upcoming process.The way you behave and talk also affect the proceedings of interview.It will partly unveil your education level and the rough understanding of your personality.The job positions are provided for those people who can afford them, and that is why you need to perform that you have the ability to handle the job.Sometimes, we will face some special situations which needs specific resolutions.Your professional knowledge will be one of the hiring standards.Don't be afraid to be asked or answer the questions in the interview.You need to be self-confident in order to leave the better impression to the interviewers.Confidence is the key to success, confidence is powerful and convincing.If you can not be qualified for those standards, just admit that you can't do it.It's much better than be disclosed when you are working.4.)What is your opinion on honesty? Do you believe that you should be honest
all of the time, or is it ok to lie sometimes? Why?
What is honesty? Honesty means speaking the truth and being fair and upright in act..“Honesty is important because people have to trust you to be a friend,” “A good name is to be chosen rather than great riches”.Your name and reputation are all you have.Once they're gone, you're broke.honesty pays big dividends in the long run.However, over-zealous devotion to speaking one’s mind has more often led to hurt feelings and ruin relationships than to get joy and fulfillment.Sometimes it's best to keep your opinions to yourself.There are other situations that call for a candid response.People, as a rule, expect honesty out of others.Finding balance is key.We should learn how to be honest.1.Think before you speak.If what you are about to say will do more damage than good and could hurt someone's feelings, it might be best to remain silent.Ask yourself how you would feel if someone said it to you.2.Return extra change to clerks.Give back to people what you’ve owe them, and take care of your commitments.it is an important step in developing an honest character.3.Talk about yourself as much as you are willing to share with other people.An honest person does not make up stories about herself.Instead, she tells the truth.4.Tell yourself the truth.Always be honest with yourself.If you keep lying to yourself, your lies will catch up to you, and you will see the unwillingness and to face reality.5.Choose the people that you can trust to be totally honest with.Hopefully, you can tell anything to your spouse or partner.Trust is earned and it is OK to keep friendships superficial as long as you are honest with yourself.5.)What are the most important things a parent can teach a child? How can the parents have a negative and positive influence on their children?
Parents are our first teacher.We learn almost everything from them in our childhood.We follow what they’ve said and done.It’s no doubt that parents have great influence on us.However, parents, especially those of teenagers, care about their children＇s education more than anything else.They could do everything for their children.Many of them spend most of their spare time coaching their children in studies;those who have no time or cannot do it have hired tutors.Some also send their children to after-class schools.Some even have tried to improve their home environment.It seems as if a better education is all that parents expect for children.Certainly, it is good to see much of parents＇ attention is paid to children＇s education.However, in my opinion, emphasis should also be laid on fostering their other abilities and personal qualities.Of course, it is important to learn to succeed, but the first thing to learn is how to survive and how to be a qualified citizen.If this is included in good education that parents are seeking now, their children will be definitely ensured not only a bright future but also a sound intellectual and mental foundation, hence a healthy life.
第五篇：英语口语演讲话题
On love Love is of the utmost importance to us humans.Everybody not only needs love, but also should give others love.“love is a lamp which is brighter in darker places.” This is indeed true.People in darker places need more light than other people.Maybe even a dim light can give them much hope for a better life.Maybe just a thread of light will call forth their strength and courage to help them step out of their difficulties.I can think of no better illustration of this idea than the following examples.(Numerous examples can be given easily, but these will suffice For instance when someone is starving to death, just a little food and water from you may save his(her)life.Again, when a little girl in a poor rural area drops out of school because of poverty, just a small sum of money from you may support her t o finish school and change her life.In these circumstances you have given love which is like a lamp in a dark place where light is most needed.To sum up, we should offer our help to all the needed.We expect to get love from others and we also give love to others.So when you see someone in difficulty or in distress and in need of help, don't hesitate to give your love to him(her).I believe that the relationship between people will be harmonious and our society will be a better place for us to live in.How to improve your health and your life With the advent of the fast-paced life, there is a growing lack of exercise, living more and there is no law.Health status also declined.So how do we improve our health and life? First, we want to develop a regular schedule and a nutritious diet plan.Into practical action and stick to it, so that their bodies to adapt to the environment.Then, we need to have a movement, can one week exercise two to three times, allowing the body to a lot of perspiration, the body too much pressure and the excretion of toxins through exercise.Finally, I think we should see some benefit our physical and mental books, books can not only enrich our extra-curricular knowledge and can edify sentiment.If we have a good life plan, the fast-paced life and can not be interrupted by the laws of our lives.Therefore, we in the rapid development of the economic environment, as much as possible to reflect on their own habits are conducive to the physical and mental development, and to develop appropriate plans to improve.I am a slow walker,but I never walk backwards It is always said“The early bird has something to eat.”No matter how slowly you walk,just go forwards,you can get where you want to go!Someone may say“I am so silly that I can't do that!”.When you don't even have a try ,how can you know you can't do it?Albert Einstein even can't say a clear word when he was three years old.Edison can't read when he was twelve years old.You can imagine how stupid they are in other people's opinion.Can you think you are a geniuswhen you can't say a word when you are three years old?Can you think you can bring benifits to all the humanbeings when you can't read when you are twelve years old?Nothing should be predict when you don't have a try to do something!Nothing is impossible!Just do it!When other peole see in a suspicious eyelight!Just leave them alone!Although you are a slow walker,the road has an end,when you never walkbackwards,you can make it!
A national symbol of China The most famous national symbol of China for the foreigners is undoubtedly the Great Wall.It is said that the Great Wall is the only man-made building visible from outer space.The Great Wall becomes a tour site which becomes a must for those visitors abroad.Although some segments of Great Wall is made full use of and bring a lot of forturne to the local goverment like Beijing, most part of the wall is still in the wild without being noticed.So it's important for us to protect it when taking advantage of it.或
It is widely known that dragon is the symbol of our great China.We Chinese was called “Legend of the Dragon”.There are lots of famous stories about dragon.I am also very proud of being one of the “Legend of the Dragon”.But in my opinion, china is also the symbol of our great China.We all know that there is a long history of Chinese china.Our Chines china is sleek, famous and quality is excellent.The most famous is Jingdezhen.Jingdezhen, Jiangxi has been famous for being fruitful of china and enjoyed the title as “Capital of china”.It attracts many foreigners and Chinese either.From my perspective, our great China have lots of symbols.Dragon and china are just two members of them.How to I want others to remember me after I die death is really an unavoided topic for all of us.Since memory is forever, so people always want others to remember them after they die.So how I want others to remember me after I die? Well, for me, I hope different people to have different memories of me.For my father, I hope him to remember me as a well-behaved daughter, a real pride of him.I hope that when he talks about me with someone else, he can feel proud of me.I hope he will think of those good times spent with me and feels happy.For my dear friends, I want them to remember me as a true friend, a friend they can share happiness and sorrow with.I hope they will have a special feeling when they think of me.For the other people, actually I really don’t expect them to remember me.I just hope they won’t have a bad impression on me.That will be enough.In fact, I really don’t want those people I love to remember me for a long time.I think this will bring grief to them.Just thinking of me occasionally on some special days is really enough for me.I hope they can feel happy and warm when they think of me.The way to clean up the environment The environmental protection is the most major problem which in the modern life the humanity faces.Must solve this problem must start from foundation.First, must massively propagandize, enhances people's consciousness with understanding, strengthens the environmental protection consciousness.Next, must carry on waste recovery use, reduces to forest-tree's felling.Also must strengthen to white pollution processing, little uses the plastic product.Finally, must make improvement to clean aspect.Causes the city's appearance to be neater.For Earth's tomorrow, we must start from the now diligently, will want the well local constable to protect the environment.To this us proposes as follows suggests: Implementation trash classification packed in bags.Like this not only can reduce the environmental sanitation worker's work load, but also can even better basically arrive makes use of waste, to reduce the pollution, saves the resources.People who shape our world Years ago, when Western analysts asked me to name the most influential Internet service in China, I would always answer, “QQ.” Their reaction was usually, “Q who?” But while the QQ community may have been invisible to people outside China, inside the country it was already a household name and was fundamentally changing the way China's youth meet, share ideas and entertain themselves.Now it's hard to imagine China without Tencent and the QQ service it runs.Pony Ma, 35, the visionary behind Tencent, is a modern hero, especially among China's young people.And a self-made one.He started Tencent with few resources and built the company through pure determination, listening to consumers rather than Internet analysts or critics.Pony realized very early that he was creating much more than a website.He was building a community, and that meant serving a generation of single-child households.He connected these kids online, allowing them to make friends, build social networks, chat, play games and do something their parents didn't have enough opportunities to do: simply have fun.Pony showed an uncanny ability to adapt international models for the local China market, on the basis of his strong insight into the consumer.China's youth responded by joining his online community.QQ arose at a time when many Internet companies tried to slap Western business models on the China market and failed.But QQ now boasts more than 100 million users.Pony's impact on the youth of today's China will be felt in tomorrow's China as the QQ community fosters an open, trusting, creative generation.Ma(no relation)heads Alibaba, China's top e-commerce group
What if I were a clone If I were a clone, the motherland and the world, I want to get down to take a good learning every step.a colorful new world;their teachers to teach them to write the Chinese written characters-I love you, the five-star red flag I love you.I want to make my clone teachers all over in every village, so a backwater gush knowledge of Oasis.If I clone people, I want to clone thousands of dumping the forest, I want to make every cell, every village, every city is shrouded in a green tent, prevent floods abuse IV, to prevent human suffering from the sandstorm raid that vast expanse of the desert “change” advanced technology “clone” plants and trees Jusan.Suddenly, the tree-lined, Flowers are blooming, earth one green verdant.I would also like to sprinkle green seeds to go abroad, to make our planet more vibrant.
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