桂林市一年级下学期英语期末考试试卷

桂林市一年级下学期英语期末考试试卷
桂林市一年级下学期英语期末考试试卷

桂林市一年级下学期英语期末考试试卷

姓名:________ 班级:________ 成绩:________

小朋友,带上你一段时间的学习成果,一起来做个自我检测吧,相信你一定是最棒的!

一、看图片,从方框里选出正确的单词写左句子的横线上.(10分) (共1题;共10分)

1. (10分)读一读,选出适当的单词完成句子,将单词写在横线上。

have Do does Is isn't has are am (1)—________ you have aunts?

—Yes, I ________ three aunts.

(2)—What ________ Mr Li do? ________ he a firefighter?

—No, he ________. He's a police officer.

(3) I ________ a blue dress. Kitty ________ a pink dress.

(4)—________ you a nurse?

—Yes, I ________.

(5)—I'm thirsty. Do you ________ any water!

—Yes. Here you ________.

(6)—What ________ your aunt ________!

—A student.

二、选择正确答案。(7分) (共7题;共7分)

2. (1分)—________ are you going to the park?

—I don't want to go there. I have lots of homework.

A . What

B . Where

C . When

3. (1分) Where can I _______ toys?

A . see

B . look

C . look at

4. (1分) This pen ________ nineteen yuan. It's beautiful.

A . makes

B . has got

C . costs

5. (1分) Look ________ the room.

A . on

B . in

C . at

6. (1分) (2019三上·龙岗期中) — Hello, Sue. ______________ is my brother Joe.

— Nice to meet you, Joe.

A . This

B . You

C . She

7. (1分) Mike can _______. He likes _______.

A . dance; dancing

B . dancing; dance

C . dance; dance

8. (1分) He ______ straight and turns left at the second crossroads.

A . go

B . goes

C . gos

三、匹配。(10分) (共1题;共10分)

9. (10分) What can you hear in the forest? (bird)

参考答案

一、看图片,从方框里选出正确的单词写左句子的横线上.(10分) (共1题;共10分) 1-1、

1-2、

1-3、

1-4、

1-5、

1-6、

二、选择正确答案。(7分) (共7题;共7分)

2-1、

3-1、

4-1、

5-1、

6-1、

7-1、

8-1、

三、匹配。(10分) (共1题;共10分)

9-1、

完整版五年级英语期末考试试卷及答案

紫云自治县2016—2017 学年度第一学期期末教学质量检测试卷()13.—Do you often play football on the weekend? —________ 语五年级英 B. Yes, I do. C. No, I do. A. Yes, I am. 100分钟)100 分时间:(总分:)14. Where________the girl come from? ( A. are B. is C. does 题号一二三四五六七八九总分

()15. ________nice camera it is! 分得A. What B. How C. What a 评卷人 三、根据所给场景,选择合适的句子。(10 分) 分)一、找出下列单词中与众不同的一项。(10 ()16.当你想知道今天是星期几时,应问:C. hot B. sweet ()1.A. tea A. What day is it today? B. What do you have? C. It's Monday? (B. bike C. lake )17.当你想知道别人会做什么事时,应问:()2.A. river A. What do you do? )(3.A. park B. old C. young B. What can you do? C. What are you do? ()18.当你想知道别人最喜欢的食物是什么时,应问:()4. A. flower C. mountain B. tree

A. What's your favorite food? B. What 's your best like food? C. Sunday 5. A. Friday B. dirty ()C. What's your favorite fruit? 20 分)二、单项选择。(()19.当你想感谢对方时,应说:________is your English teacher? (6. )—A. You are welcome. B. I see. C. Thank you! Miss Liu. —()20.当你问别人想喝什么时,你应说: C. Who B. Which A. What A. What do you like? B. What would you like to drink? 7. I________ a student. ()C. What's your like? C. is B. are A. am 四、从 B 栏中选出 A 栏的最佳答语。(10 分)8.

大一英语期末考试试题精选

大一英语期末考试试题精选 又到一个学期的期末了,大家复习好大学英语了吗?为大家精心挑选了一份大学英语第一学期期末试卷,供大家复习使用,希望能够帮助到大家! 大学一年级英语试卷 Part II Reading Comprehension (30 %) Directions: There are four passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheetwith a single line through the center. Passage One Science is not a set of unquestionable results but a way of understanding the world around us. Its real work is slow. The scientific method , as many of us learned in school, is a gradual process that begins with a purpose or problem or question to be answered. It includes a list of materials, a procedure to follow, a set of observations to make and, finally, conclusions to reach. In medicine, when a new drug is proposed that might cure or control a disease, it is first tested on a large random group of people, and their reactions are then compared with those of another random group not given the drug. All reactions in both groups are carefully recorded and compared, and the drug is evaluated. All of this takes time and patience. It’s the result of course, that makes the best news—not the years of quiet work that characterize the bulk of scientific inquiry. After an experiment is concluded or an observation is made, the result continues to be examined critically. When it is submitted for publication, it goes to a group of the scientist’s colleagues, w ho review the work. Einstein was right when he said: “No amount of experimentation can ever prove me right, a single experiment can at any time prove me wrong.”

一年级英语下册期末试卷

2017—2018学年度第二学期一年级期末英语试卷 题号一二三四五六七总分 得分 听力部分(60分) 一、请仔细听录音,选择你听到的图片。(2×10=20分) ()1A. B. ()2、A. B.()3. A. B.() 4.A. B.

()5A. B.()6 .A. B. ()7.A. B. ()8.A. B. ()9.A. B. ()

10.A. B. 二、听录音判断下列图片是否正确,正确的用√不正确的用×表示 (4×5=20分) ()1.()2. ()3.()4 .()5. 三、听录音,编序号。(4×5=20分) ()()()()() 笔试部分(40分) 四、看图片,找出相应的单词在括号里写序号。(2×5=10分) 1.tea 2. vegetables 3. eggs 4.water 5. rice ()()()()() 五、看图,选择正确的答案。(2×5=10分) ( ) 1 A. I want fish . B. I like train. ( ) 2. A. Can I have a ball? B.Can I have a car? ( )3. A. I like eggs. B .I like juice? ( ) 4. A. What’s in the schoolbag? B. What’s on the desk? ( ) 5. A. I like your red dress.B. I like your green T-shirt.

六、根据情景问答。(2×5=10分) 1、当你想表达:“在门的后面是什么?”怎么说( ) A. What's behind the door? B .What's under the desk? 2、当你想对别人表示感谢,可以说Thanks ,还可以说() A .Thank you. B .Here you are. 3、当你想表达:“我饿了。我想要米饭和蔬菜。”怎么说( ) A .I'm hungry. I want rice and vegetables. B .I'm thirsty. I want rice and fish. 4、“Do you like fish?”表达的是什么意思?( ) A.你喜欢鱼吗? B.我喜欢鱼。 5、当你问妈妈索要玩具时,妈妈答应给你购买时,妈妈会说() A .Sure. Here your are. B .Sorry, no. 七、正确抄写以下字母。(1×10=10分) 八、I can sing “A B C”.

第一学期期末考试英语试卷

濉溪县2019—2019 学年度第一学期期末考试 高二英语试卷 第一部分听力(共两节,满分20分) 第一节(共5小题;每小题1分,满分5分) 听下面5段对话。每段对话后有一个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听完每段对话后,你都有10秒钟的时间来回答有关小题和阅读下一小题。每段对话仅读一遍。 ( ) 1. ? A. . B. . C. . ( ) 2. ’t ? A. . B. . C. ’t . ( ) 3. ’s ? A. . B. . C. . ( ) 4. ’s ’s ? A. A . B. A . C. A . ( ) 5. ? A. ’t . B. . C. . 第二节(共15小题;每小题1分,满分15分) 听下面5段对话或独白。每段对话或独白后有几个小题,从题中所给的A、B、C三个选项中选出最佳选项,并标在试卷的相应位置。听每段对话或独白前,你将有时间阅读各个小题,每小题5秒钟;听完后,每小题将给出5秒钟的作答时间。每段对话或独白读两遍。 听第6段材料,回答第6至7题。 ( ) 6 ? A. . B. . C. . ( ) 7 ? A. . B. . C. . 听第7段材料,回答第8至10题。 ( ) 8 ? A. A . B. A . C. A . ( ) 9 ? A. a . B. a . C. a . ( ) 10 ? A. . B. . C. . 听第8段材料,回答第11至13题。 ( ) 11 ? A. a . B. a . C. . ( ) 12 ? A. 1 . B. 2 . C. 3 . ( ) 13 ? A. . B. . C. . 听第9段材料,回答第14至17题。

大学英语 期末试卷题型

《大学英语3》期末考试题型: 1、听力理解:25%(共25题,每题1分) 短对话7个、篇章理解2篇、复合式听写1篇,共25题,25分。 2、选词填空题:10% (共10题,每题1分) 3、阅读理解:20% (1)、完型填空1篇,10题,每题1分 (2)、传统仔细阅读1篇,5题,每题2分 4、翻译:25% (1)、句子翻译(中文翻译成英文):15% (5题,每题3分,15分) (2)、段落翻译(英文翻译成中文):10% (1题,10分) 5、作文:20% 注意:考试课文范围: 《大学英语3(新世纪)》:第三册第1、2、3、5单元 出题范围: 1、复习所学单元的生词、词组、搭配等,第二部分选词填空题在课后练习中出题: 《大学英语3(新世纪)》:课后练习 Words In Action 中Ex. 2 2、认真复习课文,段落翻译(英译中)从课文的Text A(新世纪)中抽取。 3、认真复习课后练习,句子翻译(中译英)从课后练习Translation1中抽取。 4、其余题目均从试题库中抽取。 另:请各位《大学英语3》任课老师提醒学生自带耳机,期末考试中有听力题型。

《大学英语1》期末考试题型: 1、听力理解:25%(共25题,每题1分) 短对话8个、长对话2篇、章理解3篇,共25题,25分。 2、选词填空题:10% (共10题,每题1分) 3、阅读理解:20% 传统仔细阅读2篇,10题,每题2分 4、翻译:25% (1)、句子翻译(中文翻译成英文):15% (5题,每题3分,15分) (2)、段落翻译(英文翻译成中文):10% (1题,10分) 5、作文:20% 注意:考试课文范围: 《大学英语1(新世纪)》:第一册第1、2、4、5单元 出题范围: 1、复习所学单元的生词、词组、搭配等,第二部分选词填空题在课后练习中出题: 《大学英语1(新世纪)》:课后练习 Words In Action 中Ex. 2 2、认真复习课文,段落翻译(英译中)从课文的Text A(新世纪)中抽取。 3、认真复习课后练习,句子翻译(中译英)从课后练习Translation中抽取。 4、其余题目均从试题库中抽取。 另:请各位《大学英语1》任课老师提醒大一新生购买耳机,期末考试中有听力题型。

大一第二学期英语期末试卷

each

C) He will go when he feels better. D) He won’t go as he hasn’t finished his work. 4. A) Check the timetable.B) Go to the railway station earlier. C) Travel on a later train.D) Cancel the trip earlier. 5. A) In New York.B) In Boston. C) In Newport.D) In Washington. 6. A) A clerk at the airport information desk. B) A clerk at the railway station information desk. C) A policeman. D) A taxi-driver. 7. A) A guest and a receptionist. B) A passenger and an air hostess. C) A customer and a shop assistant. D) A guest and a waitress. 8. A) He’s better.B) He’s feeling worse. C) He’s sick in bed.D) He has recovered. 9. A) The man didn’t want the woman to have her hair cut. B) The woman followed the man’s advice. C) The woman is wearing long hair now. D) The man didn’t care if the woman had her hair cut or not.

小学一年级英语期末测试(人教版)含答案

小学一年级英语期末测试(人教版) 听力部分 一、 听录音,给下列图片标序号。(20分) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) 二、听录音,给下列句子排序号。(20分) (1) ( )Hello. (你好!) ( ) What ’s your name? (你叫什么名字?) ( )I ’m Miss Wu. (我是吴老师。) ( ) Good morning! (早上好!) ( )My name is Bill. (我叫比尔。) (2)

()It’s yellow. (黄色。) ()Oh, a bird! (噢,一只鸟!) ()A dog! (一条狗!) ( ) What colour is it? (它是什么颜色?) ()It’s black. (黑色。) 三、听录音,选出你所听到的句子,在括号内打“√”。 (20分) 1. A. I have a book.(我有一本书。)( ) B. I have a ruler.(我有一把尺子。)( ) 2. A. It’s a bird. (是只鸟。)( ) B. I t’s yellow. (是黄色。)( ) 3. A. Good morning.(早上好。)( ) B. Goodbye! (再见!) ( ) 4. A. Stand up! (起立!)( ) B. Sit down, please. (请坐下。)( ) 5. A. Touch your ear. (摸你的耳朵。)( ) B. This is my nose. (这是我的鼻子。)( ) 6. A. Good afternoon. (下午好。)( ) B. Bye. (再见!)( ) 7. A. Show me your pencil. (出示你的铅笔。)( ) B. I have a pencil. (我有一只铅笔。)( ) 8. A. Act like a monkey. (模仿猴子动作。)( ) B. It’s a tiger. ( 是只老虎。) ( ) 9. A. Show me five. (出示“5”。)( ) B. Show me six. (出示“6”。)( ) 10. A. Yes, I do. (是的,我喜欢。)( ) B. No, I don’t. ( 不,我不喜欢。) ( ) 四、听录音,选择最恰当的答句,在括号内打“√”。(20分) 1. Good morning!(早上好!)( ) Goodbye! (再见!) ( ) 2. This is my mouth. (这是我的嘴。)( ) This is my nose. ( 这是我的鼻子。) ( ) 3. This is my eye. (这是我的眼睛。)( ) Hi! I’m Lily. (你好,我是莉莉。)( ) 4. I’m Billy. (我是比尔。)( ) It’s a cat. (是小猫。) ( )

大一期末考试英语试题

01 Passage 1 Hypnotism (催眠术) is very old. Thousands of years ago people started to use it in Egypt. The use of hypnotism has grown very much since that time. Today, doctors and scientists are in almost every country hypnotize people to help them with their problems. What is hypnotism, and how does it work? Many people think that a hypnotist puts people to sleep. Then he makes the hypnotized people do strange things. This is not what a hypnotist does. Hypnotism is really just a way to relax the mind and body. What are some of the uses of hypnotism? We go to a hypnotist because w e have a problem. The problem makes us unhappy. The hypnotist asks us to think hard about something and relax. When we are relaxed, t he hypnotist gives us some ideas to help us with our problems. Hypnotism can help people to remember things. The police sometimes ask hypnotists to help them. For example, a man sees an accident. He forgets the license number of the car he sees. If he is hypnotized he may remember it. The police can then find the car and catch the driver. People who are hypnotized can also make mistakes or say something that isn't true. People remember what they think they saw. That may not be what really happened. The police don't hypnotize people who do something wrong. Why not? People who are hypnotized may say something that isn't true. A person who has done something bad has a good reason to say something that isn't true. 1. Hypnotist helps people by ____. [A] putting them to sleep [B] helping them to get relaxed [C] offering his ideas about their problems [D] making them forget their problems 2. When hypnotized, some people may say something that is not true, because ____. [A] they do not remember what has happened [B] they remember what they think has happened [C] they do not know what has happened [D] they are not interested in what has happened 3. According to the passage, which of the following is TRUE?____ [A] Hypnotism is very different form what it used to be. [B] When a person is hypnotized, his body gets relaxed, while his mind works hard. [C] Hypnotism is much more widely used today than it was thousands of years ago. [D] When hypnotized, a person will do something strange. 4. The passage mainly talks about ____. [A] how hypnotism works [B] the development of hypnotism [C] the use of hypnotism [D] the wonder of hypnotism

大一英语上学期期末考试试卷

2010级大学英语第一学期期末考试(A卷) Jan., 2011 Part II Reading Comprehension (30 %) Directions: There are four passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A), B), C) and D). You should decide on the best choice and mark the corresponding letter on the Answer Sheet with a single line through the center. Passage One Science is not a set of unquestionable results but a way of understanding the world around us. Its real work is slow. The scientific method , as many of us learned in school, is a gradual process that begins with a purpose or problem or question to be answered. It includes a list of materials, a procedure to follow, a set of observations to make and, finally, conclusions to reach. In medicine, when a new drug is proposed that might cure or control a disease, it is first tested on a large random group of people, and their reactions are then compared with those of another random group not given the drug. All reactions in both groups are carefully recorded and compared, and the drug is evaluated. All of this takes time and patience. It’s the result of course, that makes the best news—not the years of quiet work that characterize the bulk of scientific inquiry. After an experiment is concluded or an observation is made, the result continues to be examined critically. When it is submitted for publication, it goes to a group of the scientist’s colleagues, who review the work. Einstein was right when he said: “No amount of experimentation can ever prove me right, a single experiment can at any time prove me wrong.” In August 1996, NASA announced the discovery in Antarctica of a meteorite(流星) from Mars that might contain evidence of ancient life on another world. As President Clinton said that day, the possibility that life existed on Mars billions of years ago was potentially one of the great discoveries of our time. After the excitement wore down and initial papers were published, other researchers began looking at samples from the same meteorite. Some concluded that the “evidence of life”was mostly contamination from Antarctic ice or that there was nothing organic at all in the rock. Was this a failure of science, as some news reports trumpeted? No! It was a good example of the scientific method working the way it is supposed to. Scientists spend years on research, announce their findings, and these findings

一年级英语期末测试卷

一年级英语期末测试卷 听力(40分) 一、听音,根据录音内容给下面的图片排序。(12分) ( ) ( ) ( ) . ()()() 二、听音判断(8分) 1.The lion is big. ( ) 2.This boy is thin.( ) 3.Let’s play ping-pong.( ) 4.This snake is short.( ) 三、听一听,勾一勾。(8分) 1)

2) 3) 4) 四. Listen and match听音连线.(12分) 1. These are my A. 2. This is my B. 3. These are your C. 4. This is your D. 5. These are my E. 6. This is your F.

笔试(60分) I. Read and choose. (读与选择)请把正确答案的序号填入题前括号内。(12分) ()1. father A. 父亲 B. 母亲 C. 爷爷()2. cow A. 连衣裙 B. 奶牛 C. 毛衣()3. eye A. 嘴巴 B. 手 C.眼睛()4. swimming A..游泳 B. 黄色 C.橙色()5. tall A. 矮的 B. 高的 C.牛奶()6.elephant A.老虎 B.大象 C.熊猫 二、Match the words and the body parts.功夫熊猫来了,我们把它身体各部位与对应的单词连起来吧!(12分) 1 head 4 ear 2 nose 3 foot 6 eye 三、根据句子意思,在图片的括号内打“√“”╳”(6分) This is an eye. ( ) This is a cow. ( ) This is a pig. ( ) She is a teacher.( ) She is my grandpa. ( ) I like basketball. ( ) 5 mouth

新编大学英语期末考试试卷

新编大学英语A2期末考试试卷 Part I Listening Comprehension(20%) Section A Directions: In this section, you will hear 10 short conversations. At the end of each conversation, a question will be asked about what was said. Both the conversation and the question will be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A), B), C) and D), and decide which is the best answer. Then mark the corresponding letter on the Answer Sheet with a single line through the center. Section A. 1. A. An advertisement B. A newspaper C. Their work D. A dream 2. A. On foot B. By car C. By bus D. By bike 3. A. Three B. Four C. Five D. Six 4. A. The restaurant provides good food B. She enjoys her part-time job C. The restaurant offers cheap food D. There are several cooks in the restaurant. 5. A. The movie was disappointing B. The movie was expensive to see. C. He wants to see the movie again. D. He should have seen the movie at home. 6. A. $ 64 B.$ 86 C. $96 D. $140 7. A. To stay at home B. To go to bed immediately C. To see a movie D. To go to a party. 8. A. Tom is unable to hear well. B. Tom didn’t say anything at the meeting. C. Tom doesn’t listen to him. D. Tom went out before the meeting was over.

大一英语期末期末考试试题内含答案[1]

大学英语预备阶段练习(一) (Unit 1~4) ⅠWord Building Directions: Fill in the blanks with the correct form of the words given in the brackets. 1.Thank you very much for your ____ advice. I followed it and succeeded at last. (value) 2.His business has ____ rapidly since his brother came to help. (development) 3.After a two-day discussion, we finally found a ____ to the difficult problem. (solve) 4.Prices ____ high for quite a while .People began to complain about it. (remaining) 5.I don’t think it ____ to finish all the work today. We can go on with it tomorrow.(necessity) 6.It is obviously not ____ to leave a 3-year-old boy alone at home. (properly) 7.The tourists saw a beautiful ____ when they climbed onto the top of the mountain.(scene) 8.Traveling in the desert is a challenging ____ to most people. ( inexperience) 9.____, I don’t think it possible to finish the task in two days. (person) 10.The government must make sure that the economy is developed in the right ____.(direct) ⅡVocabulary and Structure Directions: Choose the best one from the four choices to complete the sentence. 11.The temperature ____ throughout the day in that part of the country. A. very B. remains C. differs D. varies 12.The game is full of violence and will certainly have a bad ____ on young players. A. meaning B. pain C. loss D. influence 13.The warm-hearted elderly lady downstairs is always ____ to help others. A. real B. ready C. practical D. polite 14.The question is ____ difficult in the exam today. Don’t you think so? A. therefore B. since C. rather D. otherwise 15.She used to live in a lovely ____ building near the sea. A. 3-story B. 3-stories C. 3-classed D. 3-classes 16.There are different ____ of transport in big cities for you to choose when you go out. A. means B. mean C. meanings D. meaning 17.They did not take a rest until the job was ____ finished. A. straightly B. specially C. completely D. fairly 18.The bookstore owner ____ the old magazines with a new ones to attract more readers. A. required B. reviewed C. repeated D. replaced 19.Would you like to buy the book? It is ____ reading. A. worthy B. firm C. further D. worth 20.She wears sunglasses to ____ her eyes from the sunshine in summer. A. prepare B. produce C. protect D. provide 21.We all like her very much for her pleasant ____: kind, gentle and warm-hearted. A. character B. chance C. chairman D. skills 22.All the students enjoyed the wonderful ____ by the professor that afternoon. A. discussion B. lecture C. advice D. solution 23.If you have confidence in yourself first, you will not be _______ by others easily. A.won B. doubled C. defeated. D. delayed 24.The little girl developed a strong _______ on her new friends.

(完整版)人教版一年级上册英语期末试卷

一年级英语上学期期末考试卷 班级姓名 小朋友,紧张的复习已经结束了,下面我们来比比看,谁的收获最大。 听力部分 一、听音排序。14分 ()()()()()()() 二、听音,把单词和图片连线。12分 1、book 2、monkey 3、dog 4、panda 5、cat 6、duck 三、听音判断正误。打√或×。12分 1、2、3、 ()( ) ( )

4、5、6、 ()( ) ( ) 四、听音,判断下列句子对错。10分 1. Hello, I’m Cat. 2. Good morning. 3. This is my book. 4. Hi, I’m Li Yan. 5. Nice to meet you. 五、听一听, 画一画(12分) 1. 2. 3. 4. 六、将句子与小熊相应的位置连起来。(12分) This is my face. This is my eye. This is my mouth. This is my ear. This is my nose.

一、将单词和图片连线(10分) bike balloon eraser doll bear 二、给下面的英语连上正确的汉语意思。(5分) 1. Look at my eye. 你 多大了? 2. This is my pencil. 很高 兴见到你。 3. How old are you? 看我 的眼睛。 4. Nice to meet you. 你叫 什麽名字? 5. What’s your name?这是我的铅笔。 三、看图读单词,请在正确的单词下画笑脸。(15分) 2. 3. 1. pencil-box fox doll ball bird cat

本科《综合英语》期末考试考卷及答案

《综合英语》考试试卷(A卷、闭卷) Part I Reading Comprehension (阅读理解) (每小题3分,共15分) Passage One Suppose we built a robot to explore the planet Mars. We provide the robot with seeing detectors to keep it away from danger. It is powered entirely by the sun. Should we program the robot to be equally active at all times? No. The robot would be using up energy at a time when it was not receiving any. So we would probably program it to cease its activity at night and to wake up at dawn the next morning. According to the evolutionary theory of sleep, evolution equipped us with a regular pattern of sleeping and waking for the same reason. The theory does not deny that sleep provides some important restorative functions. It merely says that evolution has programmed us to perform those functions at a time when activity would be inefficient and possibly dangerous. However, sleep protects us only from the sort of trouble we might walk into; it does not protect us from trouble that comes looking for us. So we sleep well when we are in a familiar, safe place, but we sleep lightly, if at all, when we fear that bears will nose into the tent. The evolutionary theory accounts well for differences in sleep among creatures. Why do cats, for instance, sleep so much, while horses sleep so little? Surely cats do not need five times as much repair and restoration as horses do. But cats can afford to have long periods of inactivity because they spend little time eating and are unlikely to be attacked while they sleep. Horses must spend almost all their waking hours eating, because what they eat is very low in energy value. Moreover, they cannot afford to sleep too long or too deeply, because their survival depends on their ability to run away from attackers. 1.The author uses the example of the robot in space exploration to tell us . A) the differences between robots and men B) the reason why men need to sleep C) about the need for robots to save power D) about the danger of men working at night 2.Evolution has programmed man to sleep at night chiefly to help

相关文档
最新文档