2019版高考英语一轮复习Unit2Cloning夯基提能作业新人教版选修8

1、Un it 2Clo ningi 阅读理解AThere are many ways in which human cloning is expected to benefit mankind.Below is a list that is far from completi on.Dr.Richard Seed,one of the leading proponents （支持者）of human cloningtech no logy,suggests that it may someday be possible to reverse the agi ng process because

2、of what we lear n from cloning.Scien tists believe that they may be able to treat heart attack victims by cloning theirhealthy heart cells and injectingthem into the areas of the heart that have been damaged.Heart disease is the number one killer in the United States and several other industrialized

3、 coun tries.There has been a breakthrough in the researchon human stem cells.Embryonic （胚胎的）stem cells can be grow n to produce orga ns to repair or replace damaged on es.Sk in for bur ned victims,brain cells for the brain damaged,hearts,lungs,livers,andkidneys could be produced.By comb ining this t

4、ech no logy with huma n cloning tech no logy it may be possible to produce n eeded orga ns for sufferi ng people that will be free of reject ion by their immune systems.C on diti onssuch as Alzheimer s disease,Parkinson s disease,diabetes,heart failure,and other problems may be made curable if huma

5、n cloning and its tech no logy are not bann ed.Despite gett ing a fair amount of publicity in the n ews, curre nt treatme nts for in fertility（不生育）,in terms of percentages,are not very successful.One estimate is that currentin fertility treatme nts are less tha n 10 perce nt successful.Couples go th

6、rough physically andemoti on ally painful procedures for a small cha nee of havi ng childre n.Many couples run out of time and money without successfully hav ing childre n.H uma n cloning could make it possible for more in fertile couples to have childre n tha n ever before.I.The passage mainly deal

7、s with.A. the problems with huma n cloningB. the disadva ntages of huma n cloningC. the adva ntages of huma n cloningD.the differe nt ways huma n cloning is done2. Accord ing to Dr.Richard Seed we can use cloning tech no logyA. to make people look youn gerB. to make people live Ion gerC. to cure peo

8、ple of many diseasesD. to produce more ani mals3. From the passage we can infer that.A. cl oning has already bee n used to treat heart diseasesB. we can treat a man s heart disease by cloning others heartsC. most people in in dustrialized coun tries suffer from heart diseasesD. more people die of he

9、art diseases tha n of other diseases in America4. What would be the best headli ne for the last paragraph?A. With Cloning,Infertile Couples Could Have ChildrenB. Treatme nt of In fertility Is Not SuccessfulC. Physically and Emoti on ally Pain of In fertile CouplesD. The News Is Not Telling the Truth

10、5. With an orga n cloned from his own stem cells,.A. the patient is more likely to develop other diseasesB. the patient s immune systems don t reject the new organC. the patient will be free of rejection by his immune systemsD. the patient will suffer from Alzheimer s diseaseB（2018山东寿光现代中学高三开学考试，B）S

11、even years ago, back in 2010,some reports covered a story that the world s Iongest railway tunnel was un der con struct ion in Switzerla nd. At that point it had already bee n un der con structi on for over a decade. It had bee n voted to be built n early a quarter of a cen turyago! The idea to buil

12、d it could date back to n early 70 years ago about as old as some of your gran dpare nts!Yesterday, it was fin ally ready!It s 35 miles long and runs 7,500 feet beneath the Swiss Alps, a famous mountain range in Switzerland. It even runs under an old tunnel that was there before. It took a total of

13、17 years to build at a cost of $12 billion.128 million tons of rock were dug. Two million truckloads of earth were removed!The tunnel connects northern and southern Europe. The opening of this runnel was such a big deal that the Germany s leader, Chancellor Angela Merkel, Frances president, Francois

14、 Hollande, and Italy s prime minister, Matteo Renzi, were all there to celebrate, as was Austria s chancellor Christian Kern.It s called the Gotthard Base Tunnel.Eventually,325 freight and passenger trains willgo through the tunnel, relieving a lot of traffic on the roadways there and making it a mo

15、re environmentally friendly option. The Gotthard Base Tunnel is a wonder of engineering! Make us want to visit it!6.When did people first have the idea of building the Tunnel?A.About 70 years ago.B.Half a century ago.C.Twenty-five years ago. D.Seven years ago.7.What can we learn about the Tunnel?A.I

16、t used to be an old tunnel.B.It has just been completed.C.It connects all European countries.D.It runs over a range of mountains.8.What may be the purpose of building the Tunnel?A.To improve traffic. B.To increase employment. C.To attract donation. D.To stop pollution.9.What can be inferred about th

17、e Tunnel?A.It will cause conflicts among countries.B.It will be of little benefit to the locals.C.It may do damage to the environment.D.It may become a tourist attraction.n.语法填空（2018 安徽高中十校联盟高三摸底 ）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。One of the biggest challenges1 (face) by students today is how to conce

18、ntrate on studies.Almost all of them are struggli ng for their concen trati on power. I n an age2 mobile phones and the Internet are eating up most of our time and energy, one can understand how difficult it is to focus attention and energy on studies.One of the most importa nt 3 (factor) in develop

19、 ing concen trati on on a task, whether itis study or anything else,4 (be) to develop an interest in the task. We are able to focus5_(easy )on tasks that we find more in terest in g. If you want to concen trate onsomething studies are no 6 (except),youneed 7(ensure) that the environment around youis

20、 distractio n free. So the questi on is not how to concen trate on studies8 how to avoiddistract ions that have swallowed up mankind today. The only way to guara ntee9 distract ion-free environment is by gett ing rid of all the unn ecessary things aroundyou, including the electronic gadgets(小器具)10 m

21、obile phones..5. .10. 川.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处语言错误，每句中最多有两处。每处错误仅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(A ),并在其下面写出该加的词。删除：把多余的词用斜线()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。Last Saturday, my pare nts and I paid visit to my gran dpare n

22、ts by train. There was a large nu mber of people in the crowded train, but every one help those who had lots of baggage and behaved politely.Along the way, we enjoyed beautifully views. At first, we saw one hill afteranother. Then what came into our eye were fields with green crops. In a six-hour tr

23、ip, we arrived at my gran dpare nts house. Exhausted though I felt, but I was happy to see my gran dpare nts, which I hadn t seen for a long time. It s really an excited trip because it was the first time I had take n so a Ion g-dista nee trai n.答案精解精析I 阅读理解A 语篇解读 本文主要讲述了克隆技术对人类的一些有利的方面。1. C 主旨大意题。根

24、据第一段中的is expected to ben efit man ki nd及下面的内容判断,文章主要谈论的是 human cloning 的优点。2. B 推理判断题。根据第二段的 to reverse the aging process 推断，利用克隆技术可以使人们长寿。3. D 推理判断题。根据第三段可知 ，心脏病是美国和其他工业化国家的头号杀手 ，因此死于心脏病的人要比死于其他疾病的人多。4. A 主旨大意题。最后一段的主要意思是“利用克隆技术可以使不能生育的夫妇有自己的孩子”，所以用 A 项作小标题。5. B 细节理解题。由第四段中的that will be free of rej

25、ection by their immune systems可知， 用自己的细胞克隆的器官不会有排斥反应。B 语篇解读 本文介绍了一条世界上最长的铁路隧道建在瑞士的阿尔卑斯山脉， 是隧道工程的奇迹。6. A 细节理解题。根据第一段中的“ The idea to build it could date back to nearly 70 years ago” 可知 ， 选A。7. B 细节理解题。根据第二段“ Yesterday， it was finally ready!”可知 ，这条隧道已经竣工。故选B。8. A 细节理解题。根据最后一段中的“ relieving a lot of traf

26、fic on the roadways there and makingit a more environmentally friendly option.”可知 ， 建成这一隧道 ， 有大量的货运和客运车通过隧道，缓解了道路上的交通。故选 A。9. D 推理判断题。根据文章最后的“ The Gotthard Base Tunnel is a wonder of engineering! Make us want to visit it! ”可推知这条隧道可能会成为旅游景点。故选D。n.语法填空 语篇解读 我们生活在一个处处有分心事物的时代 ， 我们需要慢慢学会如何排除分心事物对我们的干 扰。

27、1. faced考查非谓语动词。 challenges 与 face 为被动关系 ， 故用过去分词短语作后置定语。2. when 考查定语从句的关系词。名词 age 后接定语从句 ， 关系词在定语从句中作时间状语 ， 故用 when。3.factors 考查名词复数。由前面的 one of可知这里应用复数名词，故用factors4.is考查主谓一致。此句主语是One of the most importa nt5.easily考查副词。这里用副词修饰动词focus,故用 easily 。所以谓语动词用单数，故用is。6.excepti on考查名词。 be no excepti on没有例外，也不例外。7.to en sure考查不定式。 n eed to do.需要做。8.but本题考查固定搭配。n ot.but.不疋 .而疋 .。9.a 考查冠词。a distra