1、2014-2015 学年北师大版选修7 Unit 20 New frontiers第 3 课时作业 . Directions: For each of the following unfinished sentences there are four choices marked A, B, C and D. Choose the one that best completes the sentence.1. It s reported that energy drinks are not allowedin Australia.A. to be makingB. to be madeC. t
2、o makeD. to have been made2. Have you seen the film Lost in Thailand? Oh, no. I _ my homework all day yesterday.3. The flood last month in the east was a real disaster, _ 19 people dead and 78 missing.A. to leave B. left C. leaving D. having left 4. Linda, the phone in your office can t be connected
3、 all the time. Why? Oh, sorry, Miss Miles. The service _ since last Wednesday.A. has been stoppedB. is stoppedC. was stoppedD. had been stopped5.Bob, _ these brochures among the tourists before you leave, will you?A. having disturbedB. to distributeC. distributeD. distributing6.Tony eventually reali
4、zed his childhood dream _ he could play on one of the top teams.A. whichB. thatC. of whichD. what7.To our great relief, Jack s illness proved not to be as serious as we _.A. had fearedB. has fearedC. would fearD. feared8._ difficulty you may have, we will always fight along with you.A. WhatB. HowC.
5、WhateverD. However9.Their answers are exactly the same. One of them _ from the other.A. must copyB. must have copiedC. should copyD. should have copied10. I have always been honest and straightforward, and it doesn t matter _ I m talking toA. who is it thatB. who it is thatC. it is who whatD. it is
6、whom that11. Mr. Harry, we want to hear what you think about the reform being carried out in our school.OK, I _ to that.A. am comingB. have comeC. cameD. come12. _ with the increasing unemployment, many people went on strike in most of the European countries.A. FacingB. Being facedC. FacedD. Having
7、faced13. I have finished a large part of the novel written by Dickens, the rest of which _ very difficult.A. isB. areC. wasD. were14. Sunday is a public holiday, _ children should get close to nature. But most of them have several lessons to attend.A. whereB. whichC. in whichD. when15. _ it rain tom
8、orrow, we would have to cancel the football match.A, WereB. WouldC. ShouldD. Will【答案与解析】1. B用还原法将其变成主动态，然后套用结构allow sb. to do sth2 D all day yesterday提示为进行时，表示持续的一个时间段。3 C 现在分词 leaving 担任结果状语，事件发生是在谓语动词之后。4 A 首先是被动态，然后因为since,所以主句的动词时态为现在完成时。5 C 该题的关键词为and，提示前面应为谓语动词，选项C 表示是祈使句。6. B 同位语从句中不缺成分、不差意思，
9、用 that.7. A prove 动作与 fear 有前后时间关系，所以用过去完成时。8. C whatever引导让步状语从句，且在从句中修饰difficulty 。9. B must have done为对过去事情非常肯定的推测。10. B 强调句，对 who 进行强调，从句采用陈述语序。11. A 趋向动词进行时表将来。12. C face-be faced with13. A the rest of which中的 which 代表 novel,所以应为单数。14. D 定语从句中不缺主宾表，所以只能选用介词 +代词的用法；具体某天应用 on。15.C 在表将来的虚拟语气从句中出现s
10、hould,可用强调与省略。 . Directions: Read the following passage, followed by several questions or unfinished statements. For each ofthem there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage.It is natural that children are curious about
11、the world around them. For example, they want to know how their hearts beat. They want to know why the ocean water tastes salty.As children grow up, they become curious about different kinds of things. When they are babies, they are interested in the parts of their bodies and in the smiles of their
12、mothers. Then they become interested in the physical world around them: the plants, the animals, the sky. Later, they become interested in the things thatpeople have made: wheels, bicycles, cars. And when they are adults, their curiosity continues. Sometimes this curiosity leads to a career in scien
13、ce.Scientists spend their lives trying to find out about the world. Those who work with the earth sciences study the earth, the oceans, and the skies. Other scientists who study living things work with the biological sciences. A third group of scientists study the physical sciences, e.g. physics, ch
14、emistry.These scientists have already discovered a lot about our world. For example, they tell us why your heart beats fast when you run. They say that when you are quiet, your heart normally beats sixty-five or seventy-five times a minute. Your heart is a pump that pumps blood to all parts of the b
15、ody. The blood carries oxygen and nutrition. When you run, your muscles work very hard and use the nutrition that the blood carries to them. The muscles need oxygen, too. So your brain sends a signal to the heart. The signal means that the muscles need more nutrition and oxygen. Then the heart beats
16、 fast and sends blood quickly to the muscles. It may beat 90 to 140 times a minute.Of course, scientists cannot answer all of our questions. If we ask,“ Why does the ocean water taste salty scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain fa
17、lls into cracks. The rain then carries the salt into the earth and into the rivers. The rivers carry the salt into the ocean. But then we ask, “ What happens to the saltni the ocean? The ocean does not get saltier every year. Scientists are not sure about the answer to this question.We know a lot ab
18、out our world, but there are still many answers that we do not have, and we are curious.16. According to the passage, which of the following statements is true? A. People are curious in the same way.B. People in different countries are interested in different things.C. Men and women are curious abou
19、t different things.D. People of different ages are interested in different things.17.Scientists who work with the biological sciences study.A.the earth, the oceans and the skyB.man-made thingsC.plants and animalsD.ocean water18.When you run, your muscles need.A.more nutrition and oxygenB.more signal
20、sC.more saltD.water19. A rock cracks.A.in wet regionsB.in dry regionsC.at very high or very low temperaturesD.when salty water falls in20.People are always curious because A.they cannot explain many things C.they know little about the world.B.they know nothing about the worldD.they want to be scient
21、ists【答案与解析】16. 答案： D解析 :本题为正误判断题。 根据文章第二段的描述， 人处于不同的年龄阶段， 所好奇的对象也随之而不同，因此选 D 项比较恰当。17. 答案： C解析 :细节理解题。本题是对词汇知识的测试。文章第三段第二句有如下文: “Otherscientists who studyliving things work with the biological sciences.其中 “ living ”things 生物”()等同于 “ plants and animals故选”,C。18. 答案： A解析 :细节题。文章第四段几处都有交代“your muscles w
22、ork very hard and use the nutrition.The musclesneed oxygen,too.The signal means that the muscles need more nutrition and oxygen，.因此选 A 。”19. 答案： C解析 :本题是对文章细节的考查。文章倒数第二段第三句已予以说明 (When a rock gets very hot or very cold,it cracks),因此选 C。20. 答案： A解析 :深层理解题。根据文章最后一句 “We know a lot about our world,but th
23、ere are.，可断定选项” B 和选项 C 为错的。而选项 D “人们想当科学家 ”并不是好奇的原因， 且相反，正因为人们对某些事情的不理解，才产生了好奇心，才立下了当科学家的志向。所以选 A 最为恰当。书面表达每到放学，家长接学生的车辆总会导致校门口的交通过度拥挤，学校对此非常苦恼。假如你是高一年级的学生李华，请给校长写一封信，分析一下该现象产生的原因，并提出你的建议。注意： 120 词左右；开头已给出，不计入词数。Mr. Wang,I m writing to you to share my opinions about the problem of heavy traffic eve
24、ry day after school at ourschool gate._.Best wishes!Yours sincerely,Li Hua参考范文Mr. Wang,Im writing to you to share my opinions about the problem of heavy traffic every day after school at our school gate.With the development of economy, more and more families begin to have cars of their own, which co
25、ntributes partly to the problem. Besides, some parents always try to park their cars as close as possible to the school gate, without taking anything else into consideration.In order to solve it, I firmly hold the view that some effective measures must be taken. First, I think it necessary to call o
26、n all the students to go back home by bus or by bike. Second, if they have to be picked up by their parents by car, theyd better remind their parents to park their cars in proper places. Finally, it might be helpful to make students of different grades leave school at different times.I hope my suggestions will be useful to help solve the problem.Best wishes!Yours sincerely,Li Hua
