2020高考英语人教版一轮复习：必修二 Unit 4 课时作业（含答案解析）

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1、课时作业.阅读理解A(2019沈阳市高三教学质量检测)In 2013 alone at least 20,000 African elephants were killed for their teeth.In South Africa over the last two years more than 2,200 rhinos were killed for their horns.These numbers are alarming，because current rates of illegal hunting are faster than birth rates，which coul

2、d lead to extinction of these ecologically important creatures in the environment.Indeed，some elephant and rhino populations are on track to be locally extinct within the next decade.If you are reading this，you may already be aware of these facts.But you might not know that wildlife trafficking(非法交易

3、)not only threatens the existence of elephants and rhinos but is also leading to extinction of other species，such as tigers，tortoises ，sea turtles，and the worlds most trafficked mammal(哺乳动物)pangolins.Pangolins are the only mammals that are entirely covered in touch scales(鳞)，which makes them look ve

4、ry strong.But actually they are endangered mammals.There are eight different species of pangolins，four in Asia and four in Africa，and all are threatened with extinction.Although pangolins are protected throughout most of the countries where they live， high demand in East Asia，where the delicious pan

5、golin meat is considered a delicacy and where their scales are used in traditional medicines，is driving an illegal trade in both live animals and pangolin parts.The number of pangolin trafficking is shocking.Experts believe that over the last 10 years more than 1 million pangolins were taken from th

6、e wild.It is estimated that between 40,000 and 81,250 pangolins were killed for the illegal trade in 2013 alone.In February，the United States released a plan to deal with wildlife trafficking，which lays out the steps we will take to fight the illegal trade in wildlife，including pangolins.We are stre

7、ngthening the carrying out of the plan；building international cooperation and contribution to protect wildlife；raising awareness to drive down the demand that is fuelling the illegal trade.Get involved and remember World Wildlife Day(Marcia 3)by spreading the plan.Use social media and tell everyone

8、that now it is time to get serious about wildlife crime and end the demand that threatens species，big and small，from the huge elephant to the shy pangolin.【语篇解读】 由于人们的捕猎，一些物种濒临灭绝。本文呼吁人们行动起来，保护濒危物种。1How many endangered creatures are mentioned in the passage?A4. B5.C6. D7.【答案】 C 细节理解题。根据第一、二段可知，文章提到了大

9、象、犀牛、老虎、陆龟、海龟、穿山甲六种濒临灭绝的动物。故选 C 项。2Which of the following is TRUE according to Paragraph 3?AEight species of pangolins live on the same continent.BPangolins are not protected in most of their natural habitats.CThe scales of pangolins can be used as an ingredient for cooking.DHigh demand contributes

10、to the illegal trade of pangolins in East Asia.【答案】 D 正误判断题。根据第三段中的“high demand in East Asia.is driving an illegal trade in both live animals and pangolin parts”可知，高需求导致了东亚穿山甲非法交易的发生，即 D 项正确。3What can we know about the plan released by the US?ASocial media will be used to spread World Wildlife Day.B

11、Whether the plan will be worked out remains to be seen.CThe US will work together with other countries to protect wildlife.DMore and more people are advised to increase their needs of pangolins.【答案】 C 推理判断题。根据文章倒数第二段中的“We are strengthening the carrying out of the plan；building international cooperat

12、ion and contribution to protect wildlife；raising awareness to drive down the demand that is fuelling the illegal trade.”可知，美国将联合其他国家保护野生动物，即 C 项正确。4What is the authors intention of writing the passage?ATo inform us something about World Wildlife Day.BTo raise awareness of protecting endangered wildl

13、ife.CTo explain why pangolins are illegally traded in East Asia.DTo show how the United States is to fight the illegal trade in wildlife.【答案】 B 写作意图题。根据文章最后一段的内容可知，作者写这篇文章的目的是增强人们保护濒危物种的意识，即 B 项正确。B(2017高考全国卷 ，C)After years of heated debate，gray wolves were reintroduced to Yellowstone National Park.

14、Fourteen wolves were caught in Canada and transported to the park.By last year，the Yellowstone wolf population had grown to more than 170 wolves.Gray wolves once were seen here and there in the Yellowstone area and much of the continental United States，but they were gradually displaced by human deve

15、lopment.By the 1920s，wolves had practically disappeared from the Yellowstone area.They went farther north into the deep forests of Canada，where there were fewer humans around.The disappearance of the wolves had many unexpected results.Deer and elk populations major food sources(来源)for the wolf grew

16、rapidly.These animals consumed large amounts of vegetation(植被)，which reduced plant diversity in the park.In the absence of wolves，coyote populations also grew quickly.The coyotes killed a large percentage of the park s red foxes， and completely drove away the park s beavers.As early as 1966，biologis

17、ts asked the government to consider reintroducing wolves to Yellowstone Park.They hoped that wolves would be able to control the elk and coyote problems.Many farmers opposed the plan because they feared that wolves would kill their farm animals or pets.The government spent nearly 30 years coming up

18、with a plan to reintroduce the wolvers.The US.Fish and Wildlife Service carefully monitors and manages the wolf packs in Yellowstone.Today，the debate continues over how well the gray wolf is fitting in at Yellowstone.Elk，deer，and coyote populations are down，while beavers and red fores have made a co

19、meback.The Yellowstone wolf project has been a valuable experiment to help biologists decide whether to reintroduce wolves to other parts of the country as well.【语篇解读】 本文是一篇说明文，介绍了美国黄石公园重新引进灰狼的事情。因为人类活动影响到灰狼数量逐渐减少，鹿群数量逐渐增加，从而造成植被遭到大量破坏。5What is the text mainly about?AWildlife research in the United

20、States.BPlant diversity in the Yellowstone area.CThe conflict between farmers and gray wolves.DThe reintroduction of wolves to Yellowstone Park.【答案】 D 主旨大意题。文章开门见山提出黄石公园引进灰狼的举措，然后在下文中详细介绍其原因以及带来的良好转机，由此判断本文的中心话题是美国黄石公园对灰狼的引进。6What does the underlined word “displaced” in paragraph 2 mean?ATested. BSe

21、parated.CForced out. DTracked down.【答案】 C 词义猜测题。根据本段后两句可知，因为人类的发展，侵占了灰狼的领域，灰狼逐渐向北迁徙，由此推断灰狼被人类排挤走了。【名师点睛】 词义猜测题是高考英语阅读理解中常见的题型，一般考查对生词的猜测、熟词生义词的猜测、短语的猜测、代词的指代以及句子的理解。要求考生掌握构词法，还要学会利用上下文语境、利用定义、解释、举例和对比转折等线索来进行判断推测。而构词法也是一种猜词的办法，比如通过前缀：dis， un，im等等，如本题中的 displace。7What did the disappearance of gray wo

22、lves bring about?ADamage to local ecology.BA decline in the parks income.CPreservation of vegetation.DAn increase in the variety of animals.【答案】 A 细节理解题。根据第三段内容可知，灰狼的减少造成了鹿群的增多，从而植被遭到了破坏；而且红狐和海狸也不断减少，由此推断灰狼的消失引起了当地生态的破坏。8What is the authors attitude towards the Yellowstone wolf project?ADoubtful. BP

23、ositive.CDisapproving. DUncaring.【答案】 B 推理判断题。根据文章末段末句可知，作者认为引进灰狼的项目是很有价值的实验，是很值得推广的。.短文改错假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文。文中共有 10 处错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。增加：在缺词处加一个漏字符号()，并在其下面写出该加的词。删除：把多余的词用() 划掉。修改：在错的词下画一横线，并在该词下面写出修改后的词。注意：1.每处错误及其修改均仅限一词；2只允许修改 10 处，多者(从第 11 处起)不计分。In China，people an

24、d giant pandas had been living together for thousands of years.But Chinas human population has been great growing.More population means more land is needed for farming.It also mean more forests are cut for wood to build and heat houses.Loss of habitat in lowland areas has forced pandas live only in

25、the mountains.The most damaged result of development has been that it has divided the pandas habitat into little islands of forest.Today，many panda are isolated in these small sections of forest，because of they will cross into areas which people live.The result is that the giant pandas can connect w

26、ith one another to mate and have babies.Besides，to our relief，there is still some good news that people are trying to help the giant pandas by creating protected areas.【答案】 In China，people and giant pandas been living together for thousnds of years.But Chinas human population has been growing.More p

27、opulation means more land is needed for farming.It also more forests are cut for wood to build and heat houses.Loss of habitat in lowland areas has forced pandas live toonly in the mountains.The most result of development has been that it has divided the pandas habitat into little islands of forest.

28、Today，many are isolated in these small sections of forest，because they will cross into areas people live.The result is that the giant pandas connect with one another to mate and have babies.，to our relief， there is still some good news that people are trying to help the giant pandas by creating prot

29、ected areas.书面表达根据提示运用本模块所学知识完成下面小作文，并背诵成文。1许多野生动物正面临着灭绝的危险。(extinction)2我们应该致力于保护这些动物免于被猎杀。(protect.from.)3政府已经决定采取强硬措施对付那些偷猎者。(get tough with)4许多人都参与这样的工作。(be involved in)5动物的生存环境看起来正在改善。(seem to be doing)_【参考范文】Many wild animals are faced with the danger of extinction so we should give our lives to protect these animals from being killed.The government has got tough with those poachers.Many people are involved in the work.Nowadays the living conditions of animals seem to be improving.