2020-2021学年英语高中外研版必修4课时作业 MODULE 6 UNEXPLAINED MYSTERIES OF THE NATURAL WORLD PERIOD 3 WORD版含解析.doc

1、温馨提示： 此套题为Word版，请按住Ctrl,滑动鼠标滚轴，调节合适的观看比例，答案解析附后。关闭Word文档返回原板块。课时分层作业 二十三Module 6Period 3. 根据括号内汉语提示完成句子1. You neednt have written (本不必写) such a long essay. The teacher only asked for 300 words, and you have written 600 words. 2. It must have rained(一定下雨了)last night for the ground is quite muddy. 3.

2、There is nowhere to find them. Where can they have gone (可能去)? 4. She didnt get there in time. She may have missed (可能错过) the bus. 5. Without your help, I wouldnt have achieved (本不会取得) so much. 6. The flowers have died. I should have watered (本来应该浇水) them often. 7. You neednt have taken(本不必要乘)a taxi

3、 here, for it was near my home. 8. My English dictionary has disappeared. Who could have(可能会)taken it? 9. If he had worked hard, he would have passed (本来会通过) the College Entrance Examination. 10. You cant have met(不可能见到)Tom today, for he flew to New York this morning. . 单句改错1. She may not have gone

4、to work. Its Sunday. (maycan或could)2. I have not seen him for quite a long time. He might have been very busy. (mightmust)3. She is two hours late. What could have happened? (couldcan)4. You should come to the meeting. What was the reason for your absence? (come前加have)5. I was really anxious about y

5、ou. You neednt have left home without a word. (needntshouldnt)6. There was plenty of time. She couldnt have hurried. (couldntneednt)7. You can have come here a little earlier, but you missed a very important lecture. (cancould)8. He should have arrived home by now. Lets ring him up again. (shouldmay

6、/might)9. If they informed us, we would not come here now. (informed前加had)10. If I was you, I would try my best to grasp the chance. (waswere)【规律方法】虚拟语气的基本用法虚拟语气表示与现在事实相反的假设, if从句的谓语形式用动词的过去式(be动词一般用were), 主句用would/should/could/might+动词原形。例如: If I were in your position, I would marry her. 虚拟语气表示与过去事

7、实相反的假设, if 从句的谓语形式用过去完成时, 即had+过去分词, 主句用would/should/could/might+have+过去分词。例如: If it had not rained so hard yesterday, we could have played tennis. 虚拟语气表示与将来事实相反的假设, if从句的谓语有三种形式: 动词过去式、were to+动词原形、should+动词原形, 主句用would/should/could/might+动词原形。. 阅读理解AOne night in March 1999, a man was driving from

8、California to Oregon, US, to visit some friends. He had stopped his car to have some food when he started to hear strange noises. Turning on the headlights, he saw an 8-foot-tall creature covered in thick, dark hair. The creature stared at him for a minute, turned in the road and walked off slowly i

9、nto the woods. In the past 50 years alone, there have been thousands of reported sightings of similar creatures in the US, Canada, the Himalayas and even Hubei Province in China. The creature is known as bigfoot. Bigfoot is said to be a very tall (between 2 and 4. 5 metres), ape-like (类人猿似的) creatur

10、e that is covered in hair and walks upright on two legs. It is very wary (警惕的) of human beings. Believers think bigfoot is a direct descendent (后代) of ancient giantopithecus(巨猿). But it remains one of the planets undiscovered secrets. There is a little evidence to support the believers theory: trace

11、s of hair, footprints and body prints as well as the reported sightings. Some people have even showed what they say with photos or films of bigfoot. But so far, no one has found bones or any other definite proof that the giant creature exists. As a result, many people believe the evidence is just pa

12、rt of a big trick. The footprints are easy to make and they say: all you need to do is make two large feet out of plaster (石膏), attach them to the bottom of your shoes and walk with big steps. As for the photos and films, they are just people dressed in ape suits. They also say the sightings are not

13、 real, just people making mistakes. For example, bigfoot could be a bear living in the wild that sometimes stands up on its back legs. 【语篇概述】本文描述了“野人”的一些目击证据并对其进行了分析说明, 也给出了一些相对比较科学的猜测。1. So far what we can be sure about is that_. A. there exist savages(野人) in several places in the worldB. there are

14、 some traces of hair, footprints and body prints of the “bigfoot”C. bigfoot is a direct descendent of ancient giantopithecusD. all the savages discovered have the same look【解析】选B。细节理解题。根据第四段第三句There is a little evidence to support the believers theory: traces of hair, footprints and body prints as w

15、ell as the reported sightings. 可知, 的确是有“bigfoot”留下的痕迹, 到底是谁留下的, 谁也没有把握。2. It was in _that man first found the ape-like creature. A. 1999B. the 1960sC. the 1950sD. the 1940s【解析】选C。细节理解题。根据第一段中的in March 1999 及第二段第一句In the past 50 years alone, there have been thousands of reported sightings of similar

16、creatures in the US, Canada, the Himalayas and even Hubei Province in China. 可知, 是在20世纪50年代。3. The article infers but doesnt say so that some people_ bigfoots existence. A. may fool the world into believingB. have definite evidences to proveC. refuse to believeD. will soon offer proofs of【解析】选A。推理判断

17、题。根据第六段As a result, many people believe the evidence is just part of a big trick. 可知, 作者在暗示有人有意捏造证据, 骗人相信“野人”的存在。4. If bigfoot is just a misunderstanding, what they saw might NOT be_. A. apesB. bearsC. giantopithecusD. people dressed in animal skins【解析】选C。推理判断题。如果真的是giantopithecus留下的脚印, 那就证明的确有这样的动物

18、, 而整篇文章都是用的推测的语气, 由此可知答案为C。BImagine putting a seed in a freezer, waiting 30, 000 years, and then taking the seed out and planting it. Do you think a flower would grow? Amazingly, scientists have just managed to do something very similar. They found the fruit of an ancient plant that had been frozen

19、underground in Siberiaa region covering central and eastern Russiafor about 31, 800 years. Using pieces of the fruit, the scientists grew plants in a lab. The new blooms have delicate white petals. They are also the oldest flowering plants that researchers have ever revived from a deep freeze. “This

20、 is like regenerating a dinosaur from tissues of an ancient egg, ” said University of California, Los Angeles biologist Jane Shen-Miller. The plant has a long history. Back when mammoths(猛犸) and woolly rhinoceroses(犀牛) walked the land, an Arctic ground squirrel buried seeds and fruits in an undergro

21、und chamber near the Kolyma River in northeastern Siberia. The ground became permafrost, a layer of soil that stays frozen for a long time. Recently, Russian scientists dug out the old squirrel hole and found the plant remains 38 meters below the surface. Back at the lab, the team fed nutrients to t

22、issue from three of the fruits to grow shoots. Then the scientists transferred the shoots to pots filled with soil. The plants produced seeds that could be used to grow even more of them. Its important for scientists to know that plant tissues can still be revived after being frozen for a long time.

23、 Thats because many researchers are trying to preserve the seeds of modern plants by freezing them and then storing them in giant lockers at various spots around the globe. One such endeavor, an underground facility in Norway, is called the Svalbard Global Seed Vault. It stores hundreds of thousands

24、 of frozen seeds. If a plant ever goes extinct, scientists could bring it back by taking its seeds from the Svalbard or other storage lockers. “No one knows how long they are able to live for, but freezing is basically the format for many plant conservation attempts nowadays. ” Shen-Miller said. Its

25、 a good thing that at least some plants are tough enough to survive the experience. 【语篇概述】短文介绍了一个关于植物组织在长期冷冻后仍能复活的科研项目。5. How did the fruit originally get underground? A. It was placed there by an animal. B. It was trapped there during the ice-age. C. It was planted there by ancient farmers. D. It w

26、as buried there after the earthquake. 【解析】选A。细节理解题。根据第四段第二句Back when mammoths and woolly rhinoceroses walked the land, an Arctic ground squirrel buried seeds and fruits in an underground chamber near the Kolyma River in northeastern Siberia. 可知最初的时候是被动物放在地下的, 故选A。6. Which of the following was NOT us

27、ed to recreate the ancient plant? A. Modern nutrients. B. Parts of its fruit. C. Its frozen seeds. D. Plant pots with soil. 【解析】选C。细节理解题。根据第五段Russian scientists dug out the old squirrel hole and found the plant remains 38 meters below the surface. Back at the lab, the team fed nutrients to tissue fr

28、om three of the fruits to grow shoots. Then the scientists transferred the shoots to pots filled with soil. 从果实的一部分取组织, 然后给这些组织一定的营养, 然后把嫩芽放在有土壤的盆里就能再重新栽培出古代的植物, 这里没有提到冻了的种子, 故选C。7. Why are scientists interested in this discovery? A. It helps them learn how plant life has changed in the past 30, 000

29、 years. B. It can help guide future efforts to protect endangered plant-life. C. It can provide directions for where to look for other ancient plants. D. It proves that all plant life can survive for thousands of years when frozen. 【解析】选B。细节理解题。根据第六段第二句Thats because many researchers are trying to pr

30、eserve the seeds of modern plants by freezing them and then storing them in giant lockers at various spots around the globe. 以及最后一句If a plant ever goes extinct, scientists could bring it back by taking its seeds from the Svalbard or other storage lockers. 有了这个重要的发现有助于帮助我们未来去保护频临灭绝的植物, 故选B。8. The und

31、erlined word “they” in the final paragraph refers to _. A. plantsB. seedsC. scientistsD. storage lockers【解析】选B。词义猜测题。根据第六段最后一句If a plant ever goes extinct, scientists could bring it back by taking its seeds from the Svalbard or other storage lockers. 及最后一段第一句中的able to live for应该指的是种子能够活多长, 故选B。9. Th

32、e purpose of the passage is to _. A. discuss a plant conservation effortB. introduce some ancient plantsC. outline some causes of global warmingD. describe a scientific research project【解析】选D。作者意图题。纵观全文的内容可知短文介绍了一个科研项目, 故选D。. 语法填空阅读下面短文, 在空白处填入1个适当的单词或括号内单词的正确形式。Jane Goodall, who had intended 1. _ (

33、work) with animals in their own environment since her childhood, went to Africa and devoted 2. _(her) to 3. _(study) the behavior of chimps. It was hard4. _ she considered it as 5. _ worthwhile career. Through her study, we learned much more about chimps. She argued that the life of these animals sh

34、ould 6. _(respect) and that they should be left in the wild and not used for entertainment. Besides, she was very 7. _(consider) to these animals. Now, she has done everything 8. _she wanted to do, which 9. _(inspire) those who want to cheer the 10. _ (achieve) of women. 【语篇概述】本文主要介绍了著名的动物学家珍古道尔。1.

35、【解析】to work。考查非谓语动词。intend to do sth. 打算做某事。不定式作宾语。2. 【解析】herself。考查反身代词。devote oneself to 是习惯搭配, “致力于”。3. 【解析】studying。考查动名词。devote oneself to致力于, 献身于, to是介词。4. 【解析】but。考查连词。这很难, 但是她认为这是一份很值得做的事业。5. 【解析】a。考查冠词。a worthwhile career一份值得做的事业。6. 【解析】be respected。考查被动语态。她认为这些动物的生命应该被尊重。7. 【解析】considerate

36、。考查形容词。她对这些动物很体贴。considerate体贴的, 考虑周全的。8. 【解析】that。考查定语从句。定语从句的先行词是不定代词 everything。【补偿训练】句式仿写他是第一个通过考试的人。He was the first person that passed the exam. 这就是我丢的那辆自行车。This is the same bike that I lost. 我能清楚地记得我在那个房间里所见到的人和一些照片。I can remember well the persons and pictures that I saw in the room. 正在哭泣的那个女

37、孩是谁? Who is the girl that is crying?_9. 【解析】inspires。考查时态。which引导的非限制性定语从句修饰前面的句子, 其谓语动词应用第三人称单数。10. 【解析】achievements。考查名词。称赞女性的伟大成就。语法填空阅读下面短文, 在空白处填入1个适当的单词或括号内单词的正确形式。Last Christmas, the circus owner, Jimmy Gates, decided 1. to take(take)some presents to a childrens hospital. Dressed up as Father

38、 Christmas and accompanied by a guard of honour of six pretty girls, he set off down the main street of the city 2. riding(ride) a baby elephant called Jumbo. He 3. should have known(know) that the police would never allow this sort 4. of thing. A policeman approached Jimmy and told him he ought 5.

39、to have gone(go) along a side street as Jumbo was holding up the traffic. Though Jimmy agreed 6. to go(go) at once, Jumbo refused to move. Fifteen 7. policemen(policeman) had to push very hard to get him off the main street. The police had 8. a difficult time, but they were most amused. Jumbo 9. must weigh a few tons, said a policeman afterwards, so it was fortunate that we didnt have to carry him. Of course, we should arrest him, 10. but as he has a good record, we shall let him off this time. 关闭Word文档返回原板块