高考英语一轮复习Unit2Cloning随堂练习新人教版选修

⾼考英语⼀轮复习话题37克隆（Unit2Cloning）新⼈教版选修8话题37 克隆（Unit 2 Cloning）晨读背诵When the media report on cloning in the news, they are usually talking about only one type called reproductive cloning. There are different types of cloning however, and cloning technologies can be used for other purposes besides producing the genetic twin of another organism.Scientists have been cloning animals for many years. In 1952, the first animal, a tadpole, was cloned. Before the creation of Dolly, the first mammal cloned from the cell of an adult animal, clones were created from embryonic cells. Since Dolly, researchers have cloned a number of large and small animals including sheep, goats, cows, mice, pigs ,cats, rabbits, and a gaur. All these clones were created using nuclear transfer technology.汉语⼤意：当媒体报道的克隆的消息，他们通常所说的只有⼀种称为⽣殖性克隆的类型。

高考英语一轮复习Unit2Cloning学案新人教版选修820210713264克隆晨读·经历Be Careful about CloningAfter a series of initial experiments and corrections, the scientist’s hard work paid off when the twin clone turkeys were hatched with normal feather and claws. This breakthrough possibly enabled people to bring their adored pets back to life. However, it bothered him from time to time that their health was in poor condition because they were unable to resist illnesses. This drawback cast him down. Merely 2 weeks later, the clones and their carrier died, which struck frustration into his heart. He retired before he attained his ambition and became a member of an opera chorus to relieve his depression.Shortly afterwards, the media published a conservative argument objecting to cloning owing to moral problems, and suggested the constitution include compulsory regulations to forbid obtaining commercial profits from cloning.When interviewed, the scientist stared at the decorations on the ceiling, thinking for a while, and then said, “I’m not in favour of any arbitrary assumption, but undertaking cloning does differ from the straightforward procedure of making loafs out of flour. Until we accumulate enough exact knowledge, any practice is in vain and is bound to fail. Altogether, being more careful is reasonable or we may walk into a side road.”慎重对待克隆在最初一系列的实验和修正之后，科学家的辛劳工作终于取得了成功，一对双生的克隆火鸡孵化出来，羽毛和爪子都专门正常。

Unit 2 Cloning李仕才(选修8Unit 2)【短文语法填空】语法填空。

阅读下面材料，在空白处填入适当的内容(1个单词)或括号内单词的正确形式。

(选自2017·日照检测)TOEFL, short for Test of English as a Foreign Language, is a standardized test of English. The TOEFL test is an important step of your journey __1__ (study) in an English－speaking country.The TOEFL test __2__ (measure) your ability to use and understand at the university level. And it evaluates __3__ well you combine your listening, reading, speaking and writing __4__ (skill) to perform academic tasks.More than 30 million people from all over the world have taken the TOEFL test to show __5__ English－language competence. The TOEFL test has __6__ (many) test dates and locations than any other English­language test in the world. You can retake the test many times as you wish, __7__ you cannot take it more than once in a 12－day period.The TOEFL test is the most __8__ (wide) respected English­language test in the world, __9__ (organize) by more than 9 000 colleges, universities and agencies in more than 130 countries, __10__ (include) Australia, Canada, the U. K. and the United States. Wherever you want to study, the TOEFL test can help you get there. 【语篇解读】本文是一篇说明文，向读者介绍了托福考试的一些相关内容，包括考查项目、参加次数以及托福考试的影响和作用等。

Unit 2 Cloning阅读理解·组块专练——练速度(限时：35分钟)Ⅰ.阅读理解AHave you seen Jurassic Park?In this film, scientists use DNA kept for tens of millions of years to clone dinosaurs. They find trouble, however, when they realize that the cloned creatures are smarter and more dangerous than expected. That's nothing more than a fiction.But could we really clone endangered animals?To date, the most successful attempt to do so was the cloning of a gaur, a rare ox­like animal from southeast Asia. Scientists used a cow to bring the cloned baby gaur, named Noah. Two days after birth, however, Noah died from a common bacterial infection. Other endangered species that may be cloned include the African bongo antelope (羚羊), the Sumatran tiger, the cheetah (猎豹), and the giant panda.Next, could we really clone extinct animals?In theory? Yes. To do this, you need a well­kept source of DNA from the extinct animals such as wool mammoth (毛象), Tasmanian tiger, or even dinosaur, and a closely related species, still living, which could serve as a_surrogate_mother.In reality? Probably not. On the one hand, it's not likely that extinct animals' DNA could survive undamaged for such a long time. Cloning such extinct animals as wool mammoth, Tasmanian tiger, or dinosaur is much more difficult due to the lack of properly well­preserved DNA. On the other hand, for example, a gaur can have a cow as a surrogate mother, definitely not a monkey. But what about an extinct animal as unique as the panda? What species could possibly serve as a surrogate mother?Cloning presents many exciting possibilities. However, even if extinct animals were brought back, they could not survive in today's world. Not only do most extinct animals have no habitat to live in, but the other plants and animals they depended on for food may also be gone as well.语篇解读：本文说明了在克隆灭绝动物的过程中遇到的重重困难与障碍。

Unit 2CloningⅠ.语法填空阅读下面短文，按照句子结构的语法性和上下文连贯的要求，在空格处填入一个适当的词或使用括号中词语的正确形式填空。

There is a very famous traditional Chinese story that has a close connection to the Dragon Boat Festival.Once upon a time on Emei Mountain there lived two __1__ spirits，White Snake and Green Snake.These snakes，being magical，turned themselves into beautiful maidens and set off on a journey to the West Lake of Hangzhou.When they arrived at the West Lake they met a man __2__(name)Xu Xian.White Snake quickly fell in love with Xu Xian and they were soon married.A Buddhist monk，named Fa Hai，warned Xu Xian __3__ his wife’s deceptive(欺骗性的)appearance and suggested to him a plan.On the day of the Dragon Boat Festival，White Snake wished to stay home so as to avoid the Ay Tsao(艾草)，used for protection from spirits，__4__(hang) on the doors of people’s houses.Her husband prepared，according to Fa Hai’s __5__(instruct)，some realgar wine(雄黄酒)，as this was a tradition during the Dragon Boat Festival.White Snake，thinking her magic __6__(protect)her from the effects of the realgar wine，accepted a cup.__7__ she drank the wine she became very ill and was barely able to get to her bed.When her husband came to her side，he found not his wife but a huge white snake.So great was Xu Xian’s shock that he fell to the floor __8__.After recovering from the realgar wine and regaining her human form，White Snake was grief­stricken to find her h usband dead.She set off on a journey to obtain a potent(有效力的)medicinal herb，__9__ could revive her husband.After returning and reviving her husband with the medicine，she explained to Xu Xian that the white snake he saw was __10__(actual)a dragon and that this vision was indeed a very good omen(预兆)．Xu Xian’s fears were put to rest for the moment by his wife’s story.【解题导语】本文讲述了发生在端午节的一个传说：白素贞和许仙的故事。

Unit 2 Cloning———————————◄课时跟踪·一练而就►———————————Ⅰ.阅读理解A(2022届湖南省长郡中学高三开学考试)Many people trying to sell homes find that an increase in home prices has turned the market in their favor. But sellers can still get the short end of the deal if they aren't careful. Here are a few tips for you：Don't test your luck. Of course you think anyone who moves into your lovely home should be willing to pay top dollars, especially if you've recently invested in some improvements. But listing a home at a price that's too high above the market price could turn away some buyers.Buyers noticing that the home still hasn't sold may begin to assume there's something wrong with the house and use that as a reasonable excuse for offering a lower price. And if a home hasn't received any offers after two weeks, it might be time to reset the price.A price that's too low can bring about an undesired outcome. Listing your home at or slightly below the market price can have the effect of drawing in a large group of buyers and increase the chances that a home will receive multiple offers. But setting the price too low comes with several risks. One possibility is that buyers will get skeptical of the home that is listed for $15，000 to $20，000 less than similar homes in the area, especially if it's not properly marketed. Once again, people might assume there is something wrong with the home and may not bother to look at it.Spy on the competition. Going to other people's open houses can give you a better sense of how your home compares to others on the market. Check out the decoration in their kitchens, the size of their backyards and use the information to figure out where your home should fit in the range of the price. But don't set your pricing just on what you see elsewhere.【语篇解读】本文讲述了把房子卖出好价钱的考前须知。

Unit 2李仕才[基础回顾]Ⅰ.单句语法填空1．The students are forbidden, unless they have special passes, to stay (stay) out after 11 p．m.2．He has a strong objection to smoking (smoke) in public places, especially with females present.3．Why bother going/to go (go) abroad to study, when there are so many good universities at home?4．Our strength is from many sources, but most of all, we owe our success to the creativity of our people.5．Struck (strike) by strong snowstorms, the area faced severe water and electricity shortage.6．The best way to undertake big projects is to force (force) them into your schedule.7．I have a sweet tooth and can't resist eating (eat) chocolate and ice cream.8．Do you know any differences (differ) between British English and American English?9．Living in the central Australian desert has its problems, of which obtaining (obtain) water is not the least.10．We had our furniture moved to the new house when the decoration (decorate) of the house is finished.Ⅱ.单句改错(每句一错)1．You can go swimming in condition that you don't go too far from the river bank. in→on2．Some rules should be made to forbid students of smoking. of→from3．It suddenly struck to me that we ought to make a new plan. 去掉第一个to 或struck→occurred4．No one knows exact how the earth began as it happened so long ago. exact→exactly5．Owe to a lack of funds, the project will not continue next year. Owe→OwingⅢ.佳句写作1．这张桌子的问题是放在我们屋里太大了。

Unit 2CloningⅠ.单项填空1．—What are those on the________？—The________ that have fallen off the big trees.A．roofs；leaves B．rooves；leavesC．roofs；leafs D．rooves；leafs2．She always differs________ me________ how to spend the vacation.A．on；with B．with；on C．at；with D．from；in3．He undertook________ the working conditions.A．improving B．being improved C．to improve D．to be improved 4．Tom，Jack and Rose were named as assistant professors.Believe it or not，________ three of them were of ________ age.A．/；an B．/；the C．the；an D．the；the5．I was about to give up my effort to work on the puzzle when a good idea________ me.A．beat B．struck C．attacked D．caught6．—Mom，may I play the computer games for a while?—________！Dad is in the study.A．Help yourself B．It’s up to you C．Behave yourself D．Go ahead7．Our school forbids________，that is to say，we are not allowed________ at school.A．to smoke；to smoke B．students’ smoking；smokingC．students to smoke；smoking D．students’ smoking；to smoke8．I have some________ with Japanese，but I don’t speak it fluently.A．resistance B．acknowledgementC．acquaintance D．access9．Li Ming won the first prize in the English speech contest and I’m glad that his efforts at last________.A．paid off B．worked outC．got back D．turned out10．She was________ by her husband’s sudden death and loss of her pet dog.A．cast down B．cast away C．cast off D．cast aside11．We really________ you a great deal for all your hard work this year.A．cost B．pay C．owe D．offer12．The child is much too young；I object________ him alone at home.A．to leaving B．leaving C．to leave D．leave13．—How I wish I had studied harder when I was in senior school!—If you had，you________ a university student now.A．are B．would be C．should D．were14．Professor Li’s book will show you________can be used in other contexts.A．that you have observed B．how you have observedC．how what you have observed D．how what have you observed15．The recent information has been put forward ________ more high school graduates will be admitted into universities.A．as B．which C．while D．thatⅡ.阅读理解AOur son stood up and left us.We watched as he got up from his seat，walked past us slowly，and joined the other young boys and girls walking towards the children’s classroom.His face showed a mix of fear and excitement，and he stayed close to his sister as he moved down the aisle.My wife and I sat together，alone there for the first time.I began to feel sad，a longing for something I couldn’t describe well.I glanced at my wife.A tear rolled down her cheek.She was feeling the same thing.I slid over，and we held hands.Our last child was entering the first grade，and we felt part of him slipping away.He’d be in school for a full day now.He’d be more independent，and need us less often.And，he’d never again be the toddler he once was.In our “stay positive”culture，many parents only see these times as a reason to celebrate.They see it as an inevitable change，and prepare themselves for the next challenge.But I couldn’t help feeling this.I didn’t want to bury my feeling of sadness.Those who protect themselves from these moments lose a great opportunity of growth.It is the kind of growth that results from pain，and makes us all more a part of the human family.Half an hour later，my son returned to us，his eyes twinkling.He was excited to tell us about his new experience.We listened to him，and his smiling face helped to ease the sadness.In fact，it was impossible not to feel happy for him.Loving_your_kids_is_not_always_easy.There are painful times when we see them moving away from us.But we must not avoid or run away from these feelings，for they give us the chance to increase our capacity for joy，while we are experiencing great sadness.16．The author’s son stayed with his sister close maybe because ________.A．he had to walk with the help of his sisterB．he wanted to be protected by his sisterC．he was not only scared but also very excitedD．he didn’t want to leave his parents alone17．When the author’s wife saw their son leave，she was ________.A．heartbroken B．warm-hearted C．disappointed D．hopeful18．We can know from the third paragraph that________.A．it is wrong for parents to protect their childrenB．many parents are very cruel to their childrenC．it is very dangerous to meet the challengeD．children can grow by joining the human family19．The underlined sentence “Loving your kids is not always easy.”(in Paragraph 5) is most likely to tell us that________.A．it is difficult for you to love your kidsB．you’d better not love your kids any longerC．loving your kids sometimes makes you painfulD．you’re really happy to love your kids sincerely20．The author has written this passage in order to tell us that________.A．we shouldn’t allow our children to go to school earlyB．sadness is a normal feeling when our children leave usC．we should let our children live independentlyD．happiness is actually as important as sadnessBSitting across from a German couple and a Chinese mother and her child，we were waiting at the Guilin airport for our delayed flight to Shanghai.In this last week of our travel-study tour，my husband and I were savoring this short break by reading.I tuned out the languages I couldn’t understand.But it was an American accent that pulled my attention from my book.It also pulled the attention of three rows of people seated around us as the American barked，“Coming through！Coming through！”At the same time，an oversized man pulling an oversized carry-on passed our row.His wheeled bag caught the German’s feet.Turning to see what snagged his luggage，the American fellow yanked his bag so hard that it crossed over the man’s feet.It was then that my horror struck.There was no “I’m sorry”，no “Excuse me” and no “Pardon me” coming from this countryman of mine.While this wasn’t the first or last incident where I sighted discourteous，ill-mannered，rude Americans in China，each produced similar feelings.First，I was embarrassed that someone from my country was creating a negative impression of Americans.My second reaction was a desire toapologize.I wanted them to explain to the Chinese woman and her child，the German couple next to them，and everyone nearby that this was not typical American behavior.I wanted them to know “we” were all not like that.I never got to explain，or to nguage differences made that option impossible，and rational thinking made it inappropriate.And it turned out not to be a need.The German caught my eyes with a bit of head-shaking，smiling and eye rolling，which I returned，and it was clear that he knew we were Americans and was expressing that there was “no need”to apologize for “universal idiot behavior”．21．In the airport the author and her husband ________.A．were talking with a German coupleB．were having a good timeC．were enjoying reading togetherD．were worrying about their flight22．According to the author the man with an American accent was________.A．strong B．impolite C．humorous D．generous23．The underlined word “snagged” (in Paragraph 3) means________.A．stopped B．covered C．touched D．pushed24．Every time the author saw Americans’ bad behavior in China she always felt________.A．uneasy and apologetic B．scared and disappointedC．proud and comfortable D．nervous and miserable25．From this passage we can know that the author comes from________.A．Germany B．China C．Japan D．America1.A2.B3.C4.C5.B6.C7.D8.C9.A 10.A 11.C 12.A 13.B 14.C15.D 16.C 17.A 18.D 19.C 20.B 21.C 22.B 23.A 24.A 25.D。

高考英语一轮复习 Unit2 Cloning基础梳理训练新人教版选修81．____________ vi.不同；相异→____________ n．不同；差异→____________ adj.不同的2．____________ adj.精确的；准确的→____________ adv.精确地；准确地3．____________ adj.简单的；直接的；坦率的4．____________ n．突破5．____________ n．规则；规章；法规→____________ adj.规则的；有规律的6．____________ vt.扔；投；掷→____________(过去式)→____________(过去分词)7．____________ adv.总共；完全地8．____________ vi.反对；不赞成→____________ n．不赞成；反对；异议9．____________ n．(pl.)媒介；手段；工具→____________(单数)10．____________ vt.禁止；不准→____________(过去式)→____________(过去分词)11．____________ vt.&vi.积累；聚积12．____________ adv.立刻；不久13．____________ vi.退休；离开→____________n．退休，退职，退役→____________ adj.退休的；退职的14．____________ vt.打扰vi.操心→____________ n．烦扰15．____________ vt.抵抗；对抗→____________ n．抵抗力；反抗→____________ adj.有抵抗力的；耐……的16．____________ vt.获得；赢得→____________ adj.可获得的；可得到的1．He ____________(不准) them from mentioning the subject again.2．Under the new____________(规章) spending on office equipment will be strictly controlled.3．They tried in ____________(白费力气) to persuade her to go.4．He is in good health; he is able to ____________(抵抗) diseases.5．I ____________(反对) to having to rewrite the article.6．People ____________(崇拜)him for his noble character.7．The way my brother talked to mother ____________(打扰)me.8．We could ____________(从事) the work for the time being.9．The novel took a year to write ____________(总共)，from start to finish.10．You've had a great ____________(突破)to get better understanding of it.1．cast ____________ 沮丧；不愉快2．object ____________ 反对3．____________ favour____________ 赞成；支持4．(be)____________ to (do) ...一定或注定(做)……5．____________ time ____________ time不时；偶尔6．bring ____________ ____________ life 使复生；使复活7．pay____________ 得到好结果；取得成功；偿清8．____________ vain白费力气；枉费心机9．____________ good/poor condition状况很好/坏；情况很好/坏10．strike ...____________ one's heart使……刻骨铭心Dolly's death, like her birth, ____________ ____________ ____________ ____________ worries.多莉之死，正如它的出世一样，注定要带来焦虑。