2021高考英语大一轮复习考点规范练37Unit2Cloning新人教版选修8
高考英语一轮巩固达标练题Unit2Cloning含解析新人教版选修820211017416
2021年高考英语一轮巩固达标练题Unit2Cloning含解析新人教版选修820211017416李仕才***阅读明白得。
After a long winter，spring is the ideal time for sightseeing and exploring London’s green spaces.1．Explore London’s parks and gardensSpringtime is the perfect time to explore London’s parks and gardens，when the city’s Royal Parks will be blooming with flowers.Go and admire the rainbow of azaleas(杜鹃花) at Richmond Park or hire a deckchair in St.James’s Park with a view of Buckingham Palace.2．Enjoy the entertainment at spring festivalsThere are a good many festivals and events held in London throughout spring.Make the most of the cultural exhibitions at the British Library Spring Festival，the Sundance Film Festival or the London Literature Festival；head to Shakespeare’s Globe，which hosts openair Shakespeare performances from late April until early October.3．Get activeWarmer weather means there’s no excuse for staying indoors，so go for a walking or cycling tour of London.Alternatively，walk the Thames Walkway，which follows the river all the way from central London into the countryside；make the most of London’s “Boris Bikes”，which are available for hire all around the city and are free of charge for the first half hour.If you’re really looking for a challenge，sign up for the famous London Marathon，held annually in April.4．Take to the watersWhether cruising(航行) along the Thames River，hiring a rowing boat in Hyde Park or riding a canal boat around Little Venice，there are lots of fun ways to get on the water in London.Held every year since 1829，the Oxford and Cambridge Boat Race allows teams from England’s most famous universities to compete against each other，and draws huge crowds of watching people.【解题导语】作者介绍了四种在伦敦享受春光的方式。
2021版高考英语一轮复习Unit2Cloning达标巩固练含解析新人教版选修82021091841
2021版高考英语一轮复习Unit2Cloning达标巩固练含解析新人教版选修8202109184139李仕才***阅读明白得。
The Internet plays a big part in human life. We use it for work and entertainment. We can find new recipes on the Internet or advice on staying healthy. We can even use it to learn a new language. We use the Internet to connect with family and friends and stay in touch with issues we care about.The list goes on and on.As far as the Internet being a part of our lives—well, that train has left the station. That expression means there is no going back. If you prefer boating, you can say that ship has sailed.So, there may be no going back to an Internet-free life. But can using the Internet too much be bad for our health?It might be, say researchers.Study results show that teens who spend at least 14 hours a week online were more likely to have high blood pressure.High blood pressure makes your heart and blood vessels work too hard. Over time, this extra strain increases your risk of a heart attack or stroke.High blood pressure can also cause heart and kidney disease. It is also closely linked to some forms of dementia, a brain disease. Dementia is marked by memory disorders, personality changes, and a reduced ability to reason.Let’s introduce something about the study of it.The Henry Ford Hospital in Detroit, Michigan did the study. It involved 335 young people, from 14 to 17 years old. One hundred thirty-four of the teens were described as “heavy Internet users”. Researchers found that out of these 134 teens, 26 had high blood pressure.The researchers say the study is the first to connect heavy web use and high blood pressure. Other research has connected that heavy Internet use with health problems including anxiety, depression and obesity.The lead researcher of the study is Andrea Cassidy-Bushrow. In a statement she said, “Using the Internet is part of our daily life but it shouldn’t consume us. ”For the purpose of the study, she explains, teens considered heavy Internet users were online on “average 25 hours a week. ”Ms Cassidy-Bushrow adds that it is important for teens to take “regular breaks from their computers or smartphones” and to do some “kind of physical activity. ”She also suggests that parents limit their children’s use of the Internet to two hours a day, five days a week.【文章大意】互联网如此有用同时融入我们的生活, 但过度使用它, 会导致多种健康问题。
2021届高考英语大一轮复习Unit2Cloning课时规范训练新人教版选修8
2021届高考英语大一轮复习Unit2Cloning课时规范训练新人教版选修8Ⅰ.阅读明白得A(2021·高考全国乙卷)I am Peter Hodes，a volunteer stem cell March 2020，I've done 89 trips—of those,51 have been have 42 hours to carry stem cells (干细胞) in my little box because I've got two ice packs and that's how long they all，from the time the stem cells are harvested from a donor (捐献者) to the time they can be implanted in the patient，we've got 72 hours at I am always conscious of time.I had one trip last year where I was caught by a hurricane in picked up the stem cells in Providence，Rhode Island，and was meant to fly to Washington then back to when I arrived at the checkin desk at Providence，the lady on the desk said：“Well，I'm really sorry，I've got some bad news for you—there are no flights from Washingto n.” So I took my box and put it on the desk and I said：“In this box are some stem cells that are urgently needed for a patient—please，please，you've got to get me back to the United Kingdom.”She just dropped arranged for a flight on a small plane to be held for me，rerouted(改道) me through Newark and got me back to the UK even earlier than originally scheduled.For this courier job，you're consciously aware that in that box you've got something that is potentially going to save somebody's life.【语篇导读】本文是一篇记叙文。
2021版高考英语一轮复习第一部分教材复习题组提分练37Unit2Cloning新人教版选修8
2021版高考英语一轮复习第一部分教材复习题组提分练37Unit2Cloning新人教版选修8限时30分钟语法填空(2020·德州质检)Blessed by the pleasant weather, the island province of Hainan is fast becoming known as “China's Florida”， 1.____________ (draw) masses of retirees escaping the biting cold of their hometowns.“At home in Harbin, it can be -30℃， it is unbearable! But here the climate is 2.______ (suit)，” said a 71yearold woman from the 3.______ (extreme) cold province of Heilongjiang. She 4.____________ (move) each winter to Sanya over the past eight years.(现在完成时的时刻标志词：so far、up to now、until now、recently、since (自从)、ever since、in/over/during the past/last＋时刻段)“Here the 5.____________ (warm) is better for our health. We find so many people from our province 6.____________ we are sure we will not get bored.” said Qi Ningxia, 7.____________ 60yearold man from Heilongjiang.About 700,000 elderly people come to Sanya every winter, almost doubling8.____________ (it) population. Nearly half of these “migratory birds”，9.____________ they are called, come from the northern provinces in China.The trend began in 2000 as people began buying Sanya apartments, opening business and persuading friends and family 10.____________ (join) them, creating a snowball effect.答案与解析【语篇解读】海南岛因其温顺的气候和新奇的空气已成为许多老人退休过冬的最佳地点。
2021-2022年高三英语一轮复习题组层级快练37Unit2Cloning新人教版选修
2021年高三英语一轮复习题组层级快练37Unit2Cloning新人教版选修Ⅰ. 阅读理解Most home fires occur in the kitchen while cooking and are the leading cause of injuries from fire. mon causes of fires at night can be particularly dangerous because they may burn slowly for a long period before being discovered.Home fires are preventable! The following are simple steps that each of us can take to prevent a tragedy.CookingStay in the kitchen when you are cooking especially frying. If you leave the kitchen for even a short period of time, turn off the stove.Do not cook if you are sleepy, or have been drinking alcohol.Keep children away from cooking areas.SmokingIf you smoke, smoke outside. Most home fires caused by smoking materials start inside the home. Put your cigarettes out in a can filled with sand.Make sure cigarettes and ashes are out. The cigarette really needs to be pletely put out in an ashtray or in water before your throwing them away.Check for cigarette butts. Don't put ashtrays on chairs and sofas because they catch fire fast. Never smoke in a home where oxygen is used, even if it is turned off.ChildrenTake the mystery out of fire play by teaching children that fire is a tool, not a toy.Store matches and lighters out of children's reach and sight, preferably in a locked box.Teach children not to pick up matches or lighters they may find. Instead, they should tell an adult immediately.Electrical Equipment, Fireplaces and WoodstovesReplace all worn, old or damaged wires immediately and do not run wires under rugs or furniture.Examine and clean woodstove pipes and chimneys yearly and check monthly for damage.Never burn trash, paper, or green wood.Make sure the fire is pletely out before leaving the house or going to bed.1. The purpose of this article is to tell everyone ________．A. how to give up smokingB. how to cook at homeC. how to look after children while cookingD. how to prevent home fires2. When you are frying eggs, the telephone in your bedroom is ringing, you had better ________．A. go and answer the phone immediatelyB. ring him or her back laterC. ask your child to help cookD. ask your tired husband to help cook3. According to the passage, which is right about smoking?A. Throw away the cigarette ends just when you finish smoking.B. The leading cause of injuries from home fire is smoking.C. Put the ashtrays on chairs instead of sofas when smoking.D. You mustn't smoke in a home where there is an oxygen tank.4. As a parent, you should teach your children (or child) ________．A. how to use matches properlyB. how to keep away from matchesC. how to hide matches from othersD. how to play with matches答案与解析【文章大意】大多数家庭火灾发生在厨房做饭时，并且家庭火灾是火灾受伤的主要原因。
2021高考英语一轮达标Unit2Cloning练题含解析新人教版选修8202109171117
Unit 2 Cloning李仕才一、阅读理解。
If you're making determination for a healthier new year, consider a gut makeover(肠道清理)．Changing your microbe community(微生物群)，however, may not be easy，and nobody knows how long it might take.That's because the ecosystem already established in your gut determines how it absorbs and processes nutrients.So if the microbe community in your gut has been shaped by a daily diet of hamburgers and pizza，for example，it won't respond as quickly to a healthy diet as a gut shaped by vegetables and fruits that has a more varied microbe community.“The nutritional value of food is influenced in part by the microbe community that encounters that food，” said Dr Jeffrey Gordon，the senior author of the new paper and director of the Center for Genome Science and Systems Biology at the Washington University School of Medicine in St.Louis.“Nutritional components of a healthy diet have to be viewed from the inside out，” he said，“not just the outside in.”One of the questions the study set out to answer was how individuals with different diets respond when they try to improve their eating habits.The scientists harvested gut bacteria from humans，transplanted them into mice bred under germfree conditions，and then fed the mice either Americanstyle or plantbased diets.The scientists then analyzed changes in the mice's microbe communities.Of interest，the scientists harvested the gut bacteria from people who followed sharply different diets.One group ate a fairly typical American diet，consuming about 3 000 calories a day，high in animal proteins with few fruits and vegetables.Some of their favorite foods were processed cheese and lunch meat.Theother group consisted of people who were calorierestricted.They ate less than 1 800 calories a day and had carefully tracked what they ate for at least two years，sticking to a mostly plantbased diet and consuming far less animal protein than the other group，a third fewer carbohydrates(碳水化合物)and only half the fat.This calorierestricted group，the researchers found，had a far richer and more diverse microbe community in the gut than those eating a typical American diet.They also carried several kinds of“good” bacteria，known to promote health，that are unique to their plantbased diet.“Perhaps the best way to shape a healthi er microbe community is to eat more fiber by consuming more fruit，vegetables，whole grains，and nuts or seeds，” said Meghan Jardine，a dietitian who was not involved in the current study but has published articles on promoting healthy microbe communities.She urges people to aim for 40 to 50 grams of fiber daily，well above levels recommended by most dietary guidelines.1．What can we know from the first two paragraphs?A．Changing microbiome is fairly easy.B．Ecosystem in gut is shaped by carbohydrates.C．Nutritional components are determined by food intake.D．As to healthy diets，microbe community shaped by vegetables and fruit respond more quickly than that shaped by junk food.2．What can we learn about Meghan Jardine?A．She suggests eating as little as possible.B．She attaches great importance to fiber.C．She is one of the researchers of the current study.D．She advocates consuming more meat in daily life.3．What's the author's attitude toward gut makeover?A．Concerned. B．Opposed.C．Indifferent. D．Nervous.4．Which is the best title for the text?A．Microbe community in our gutB．A gut makeover for the new yearC．Dietary guidelines for daily dietsD．The best way towards a healthier microbe community【解题导语】本文是一篇说明文。
2021版高考英语一轮复习第一部分教材重点全程攻略Unit2Cloning限时规范特训新人教版选修8
2021版高考英语一轮复习第一部分教材重点全程攻略Unit2Cloning限时规范特训新人教版选修820210513142Ⅰ.完形填空Miss the Wild GeeseOne morning in early fall, I spotted a pair of wild geese on our pond. The beautiful sight caught me by __1__， because we'd never seen geese there before. I wondered where they came from and why they'd__2__ our pond.As the days passed, I couldn't__3__getting a closer look and started talking to the geese. They craned their necks and raised their heads __4__but seemed to realize I was a __5__and not an enemy. I felt __6__we were bonding.One day as they were __7__ in the grass near the driveway, Idiscovered the reason for their __8__—the male had a broken left wing.He was __9__ to fly, and his lifelong mate would not leave him__10__. I marveled (赞颂) at the __11__between them.I asked a wildlife biologist friend what I should__12__. He explained that sometimes a broken wing will heal by itself and suggested letting __13__ take its course.On the first day of November, I was __14__ in the vicinity(在……邻近) of the geese with my tractor. I caught some __15_from the corner of my eye.Both geese were running toward the pond, wings beating __16__. The geese gained enough altitude to clear a neighbor's house, then __17__back toward me, flying no more than 50 feet over my head as if to say goodbye. Then they were out of__18__.I grew __19__them during their stay at our pond, and I miss them. I'll never forget their __20__ to each other. We could all learn a lesson or two from this pair.篇章导读：本文是一篇记叙文。
高三英语一轮复习Unit2Cloning练习新人教版选修820170421117.doc
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。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
考点规范练37 Unit 2 CloningⅠ.阅读理解(2018·天津)There’s a new frontier in 3D printing that’s beginning to come intofocus:food.Recent development has made possible machines that print,cook,and serve foods on a mass scale.And the industry isn’t stopping there.FoodproductionWith a 3D printer,a cook can print complicated chocolate sculptures and beautiful pieces for decoration on a wedding cake.Not everybody can do that—it takes years of experience,but a printer makes it easy.A restaurant in Spain uses a Foodini to “re-create forms and pieces” of food that are “exactly the same,” freeing cooks to complete other tasks.In another restaurant,all of the dishes and desserts it serves are 3D-printed,rather than farm to table.Sustainability(可持续性)The global population is expected to grow to 9.6 billion by 2050,and some analysts estimate that food production will need to be raised by 50 percent to maintain current levels.Sustainability is becoming a necessity.3D food printing could probably contribute to the solution.Some experts believe printers could use hydrocolloids(水解胶体) from plentiful renewables like algae(藻类) and grass to replace the familiar ingredients(烹饪原料).3D printing can reduce fuel use and emissions.Grocery stores of the future might stock “food” that lasts years onend,freeing up shelf space and reducing transportation and storage requirements. NutritionFuture 3D food printers could make processed food healthier.Hod Lipson,a professor at Columbia University,said,“Food printing could allow consumers to print food with customized nutritional content,like vitamins.So instead of eating a piece of yesterday’s bread from the supermarket,you’d eat something baked just for you on demand.”ChallengesDespite recent advancements in 3D food printing,the industry has many challenges to overcome.Currently,most ingredients must be changed to a paste(糊状物) before a printer can use them,and the printing process is quite time-consuming,because ingredients interact with each other in very complex ways.On top of that,most of the 3D food printers now are restricted to dry ingredients,because meat and milk productsmay easily go bad.Some experts are skeptical about 3D food printers,believing they are better suited for fast food restaurants than homes and high-end restaurants.1.What benefit does 3D printing bring to food production?A.It helps cooks to create new dishes.B.It saves time and effort in cooking.C.It improves the cooking conditions.D.It contributes to restaurant decorations.2.What can we learn about 3D food printing from paragraph 3?A.It solves food shortages easily.B.It quickens the transportation of food.C.It needs no space for the storage of food.D.It uses renewable materials as sources of food.3.According to paragraph 4,3D-printed food .A.is more available to consumersB.can meet individual nutritional needsC.is more tasty than food in supermarketsD.can keep all the nutrition in raw materials4.What is the main factor that prevents 3D food printing from spreading widely?A.The printing process is complicated.B.3D food printers are too expensive.C.Food materials have to be dry.D.Some experts doubt 3D food printing.Ⅱ.完形填空Last year,I had a car accident.I was 1 ,and I had my two children in the car.2 ,they both were OK.Despite having scratches on my left arm and neck,I felt3 right after the accident.Later that night,though,there was something wrong with me and my husband sent me to hospital immediately.My 4 said I had a concussion (脑震荡).The first week I felt like my inner 5 was off.I walked slowly,moving from side to side.I had difficulty in communicating because it was hard to remember words and I couldn’t 6 clearly.I wore sunglasses all day because the light hurt my 7 .When all of these 8 disappeared,people thought I had recovered,especially when my 9 injuries weren’t apparent;people 10 the pain that I wasexperiencing.They thought that I had 11 ,but I hadn’t.I was anxious and 12 .I gained 25 pounds because of stress eating.I felt like a victim.I couldn’t bear anymore and I 13 to cure myself.I wrote down my feelings.I started meditating (冥想) and losing 14 .It’s almost been a year since the 15 .My neck still tenses when I’m nervous,but there are fewer headaches.I still have panic attacks,but less16 .Although I’m recovering slowly,the dead,hopeless look in my eyes is 17 .My mind is teaching me something new:You were knocked down hard.Your brain was hit.But you were given another 18 .I consider almost daily 19 I’ll live my second life.I’ll live with less speed and fewer things on the to-do lists.I’ll become my children’s strongest backer and tell them,“I’m 20 here no matter what happens.”1.A.sad B.terrified C.tired D.surprised2.A.Immediately B.Strangely C.Hopefully D.Thankfully3.A.hurt B.fine C.worried D.lucky4.A.husband B.friends C.doctor D.children5.A.balance B.sense C.strength D.wisdom6.A.see B.speak C.write D.hear7.A.eyes B.ears C.arm D.neck8.A.difficulties B.mistakes C.situations D.symptoms9.A.personal B.emotional C.internal D.physical10.A.refused B.forgot C.controlled D.felt11.A.calmed down B.looked out C.moved on D.given in12.A.stressful B.disappointed C.shameful D.dissatisfied13.A.agreed B.continued C.managed D.decided14.A.force B.sympathy C.weight D.confidence15.A.illness B.accident C.change D.cure16.A.desperately B.frequently C.quickly D.crazily17.A.gone B.special eless D.funny18.A.concern B.challenge C.choice D.chance19.A.when B.why C.where D.how20.A.also B.already C.always D.againⅢ.语篇填空In China,the history of people planting and using bamboo can date back to as far as 7,000 years ago.As early as the Shang Dynasty,bamboo was being used in ancient people’s daily lives.It was used for food,clothing,housing,transportation,1. (music) instruments and even weapons.The 2. (apply) of bamboo in science and technology isthrilling.In 251 BC,Li Bing,in Sichuan,3. (lead) the local people in building the Dujiang Weirs,the first irrigation network in the world,in which bamboo played 4. important role.The world’s oldest water pipe was also 5. (make) of bamboo.During the Han Dynasty,the people in Sichuan 6.(success) sank a 1,600-metre-deep well with thick bamboo ropes.This technology did not spread to Europe 7. the 19th century,and it was by using the technology 8. the Americans drilled the first oil well in Pennsylvania in 1859.In Chinese culture,bamboo is well-known as 9. of the “four gentlemen”in plants.To many distinguished men,bamboo is a symbol of goodness and honesty.It is always closely related to people of positive spirits.Bamboo culture contributes to encouraging people to hold on when 10. (face) tough situations.Ⅳ.短文改错(2019·广西桂林高三4月模考)When I was eight,my father bought me the new bike for my birthday.My brother offered to teach me how to ride.At first,he rode and let me watching.Then he explained me the skills of controlling the bike.Still puzzling,I got on the bike,but it doesn’t move as ex pected.I lost my balance and fall off the bike.At once I burst into tear because I saw blood on the ground.While I stood up,my left leg hurtter,I learned to ride a bike.This experience told me that though some lessons were painful to learn them,yet we could benefit a lot.考点规范练37(选修8Unit2)Ⅰ.【解题导语】本文是一篇说明文,主要介绍一项新的3D食物打印技术。