高二英语人教版选修8unit2课时分层作业精选(含答案)
高中英语(人教版)选修八Unit 2 Cloning learning about language课时作业 (9)
Unit 2 Cloning learning about language课时作业一、单句语法填空结合语境，根据汉语或首字母提示用单词的适当形式填空。
1. My kids spend hours (chat) on the phone with their friends.2. The (scene) of the West Lake is beautiful beyond description.3. The woman is (slight) worried about her son.4. I’d like to bring up my children in healthy (surround).5. There are seven (continent) in the world, of which Asia is the largest.6. (measure) must to be taken to protect the environment we are living in.7. Vancouver is a (Canada) city, the most beautiful city of Canada.8. Don’t leave matches or cigarettes on the table reach of little children.9. I was wandering in the street when I caught sight my former boss.10. He has an 18-year-old daughter who has a great gift singing.【答案】二、完成句子1. We should help him _______________ he should help us.2. We must _______________ reduce crime in the area.3. I must _______________ and do my homework.4. The country has _______________ too many wars.5. The little girl _______________ music and promises to be a musician.6. If you _______________ her work _______________ his, you’ll find hers is much better.7. The house _______________ high walls.8. Our garden _______________ one side by a stream.9. Though we left home very late, we _______________ catch the last bus.10. Finally he _______________ the young man’s light overcoat in the distance.【答案】1. rather than2. take measures to3. settle down4. gone through5. has a gift for6. compare; with7. is surrounded by 8. is bordered on9. managed to 10. caught sight of三、单句改错1. Who is the old man surrounding by a group of children on the playground._________________________________________________________________________________ 2. The faces of four famous American president on Mount Rushmore can be seen from distance of 60 miles. _________________________________________________________________________________ 3. They went board the ship just before it started to leave._________________________________________________________________________________ 4. You should take effective measure to improve your working conditions._________________________________________________________________________________ 5. Rather than to stay at home, I’d prefer to be a volunteer._________________________________________________________________________________ 【答案】四、阅读理解1. 我们必须采取必要的措施逐个解决这些问题。
2020-2021学年高中英语人教新课标选修八 Unit 2 课时作业含解析
Unit 2 Cloning课时作业6Learning about Language & Using LanguageⅠ.单词拼写1．He is straightforward (直率的), which makes it easier for us to communicate.2．I'm sorry to bother (打扰) you, but can I talk to you for the moment?3．The objection (反对) to smoking is raised by most people.4．Surfing the Internet during bedtime is forbidden (禁止) in this school.5．They are not merely (仅仅) content to fill in the stomach.6．Clouds began to accumulate in the sky and a heavy rain was coming.7．I finished the whole cake. I just couldn't resist it.8．We sell food of good quality at reasonable prices.9．His doctor's degree obtained in America is definitely a big advantage over others in applying for the position.10．You have to be very exact in the design, because a small mistake can makea big difference.Ⅱ.选词填空in favor of， cast down， in many respects， be bound to， bring back to life，accumulate， have a great impact on， from time to time， pay off， open one's eyes to．In_many_respects,_the new edition isn't so good as the old one.2．Don't lie to your father. He is_bound_to find it out.3．In the TV play, Hawking was_brought_back_to_life,_which attracted us.4．Shortly after they cooperated, they quickly accumulated a large fortune.5．With the help of his father, he paid_off all the debts.6．His experience of teaching in the countryside opened_his_eyes_to the country life.7．He was cast_down when he discovered the fate of the fellow.8．Fashion designers are always changing styles of dress from_time_to_time to make more money from ladies.9．Are you in_favor_of the government's plan to build more railway lines?10．If the book is published, it will have_a_great_impact_on young people.Ⅲ.词语辨析A．用strike, beat或hit的适当形式填空。
高二英语人教版选修8unit2 Section Ⅲ随堂检测及课时作业(含答案解析)
Ⅰ品句填词1．The seeds have not been improved to resist(抵抗) disease or tolerate drought yet.2．Allen, your plan sounds reasonable(合情合理的). How are you going to put it into practice?3．Lucy spent more than three hours in the store buying decorations(装饰品) for the Christmas tree.4．Their initial(原始的) plan was to Tibet, but they finally went to France for their holidays this summer.5．I didn’t blame you; I merely(仅) expressed my opinion about the incident.6．The regulations(规则) in the United States seem to be very different from those in China.7．After Mr.Lee retired(退休) from the school, he moved to the countryside, where he lived a peaceful life.8．Tom always owed(归因于) his failure to his bad luck, which was harmful to him.9．As an adult, I don’t want to bother(打扰) my parents with my problems at the moment.10．One of the drawbacks(缺点) of her job is that it takes up much time in her spare time.Ⅱ选词填空bring...back to life; in favour of; strike...into one’s heart; be bound to; in vai n; in poor condition; cast down; pay offIf no measures are taken, we human beings are bound to suffer greatly from the terrible weather.2．John believes that his efforts will pay off sooner or later as long as he doesn’t give up.3．I felt cast down when I was told that our experiments failed over and over again.4．All citizens are in favour of the plan that was put forward at the meeting to improve the public transportation in this city.5．That he was asked to meet the head teacher struck fear into his heart．6．We tried to bring our hometown back to life by working hard after the earthquake.7．Although my parents have told me what I am planning to do will be in vain, I would like to have a try.8．He didn’t take good care of himself when he was young, so his health is in poor condition at present.Ⅲ完成句子1．做完了所有的作业，我女儿高高兴兴地和她的朋友们去玩了。
高二英语人教版选修8unit2Section Ⅲ课时作业及随堂检测(含答案解析)
Section ⅢLearning about Language & Using Language重点单词写作词汇1.owe v t. 欠(账、钱、人情等)；归功于……2.shortly ad v. 立刻；不久3.retire v i. 退休；离开4.bother v t. 打扰v i. 操心n. 烦扰5.regulation n. 规则；规章；法规6.strike v t.& v i. 打；撞击；罢工n. 罢工7.drawback n. 缺点；不利条件8.unable adj. 不能的；不会的9.vain adj. 虚荣的；自负的；徒劳的拓展词汇10.assumption n．假定；设想→assume v．假定；设想11.resist v t.抵抗；对抗→resistance n．抵抗；对抗12.merely ad v.仅；只；不过→mere adj.仅仅的；纯粹的13.decoration n．装饰→decorate v t.装饰14.popularity n．受人喜爱；流行→popular adj.流行的；通俗的；受欢迎的15.reasonable adj.合情理的；讲道理的；公道的→reason n．理由；道理阅读词汇pulsory adj. 必须做的；义务的；强迫的；强制的17.opera n. 歌剧；歌剧团；歌剧院18.loaf n. 一条(面包)19.initial adj. 最初的；开始的20.restore v t. 恢复；使恢复原状；重建21.feather n. 羽毛22.adore v t. 崇拜；爱慕；喜爱23.hatch v t.& v i. 孵出；孵卵；孵化24.claw n. 爪；脚爪25.dye v t. 给……染色；染n. 染色剂重点短语1.(be) bound to (do)...一定或注定(做)……2.strike...into one’s heart 使……刻骨铭心3.from time to time 不时；偶尔4.bring back to life 使复生；使复活5.in vain 白费力气；枉费心机6.in good/poor condition 状况很好(坏)；情况很好(坏)重点句型1.as if 引导表语从句：It seemed as if(看上去好像是) a clone was a carrier of more weaknesses than its original.2.形容词作状语：“Did she die young(她死得早) because she was a clone？”3.with 复合结构：Diversity in a group means having animals with their genes arranged(基因排列) in different ways.4.The advantage is that...优势是……：The__advantage__is__that(优势是) if there is a new illness some of these animals may die, but others will survive and pass on the ability to resist that disease to the next generation.Read the text carefully and choose the best answer.1．The writer of the text________．A．is excited by the possibility of cloning fierce and extinct animalsB．believes that extinct animals can be brought back to life by cloningC．thinks it impossible or unsuitable to clone extinct animals like dinosaursD．dreams of dinosaurs returning to the earth2．The film Jurassic Park is popular because________．A．people are interested in the subject of cloningB．it was directed by a scientist who clones dinosaursC．all the actors are dinosaursD．it proves very interesting3．The reasons why a group of cloned animals all die of the same illness do NOT include that________．A．they have the same arrangement of genesB．there isn’t enough diversity in the group for it to overcome illnessesC．the illness is a new oneD．their arrangement of genes can not resist that new disease4．We can infer from the text that________．A．scientists are experimenting to clone dinosaursB．dinosaurs will never return to the earthC．cloned animals will only live in the zooD．the DNA of dinosaurs can only survive 10，000 years答案：1－4.CACB①extinct adj.已灭绝的；消亡了的②popularity[ˌpɒpjʊ'lærətI]n.受人喜爱；流行popular adj.受人喜欢的③strike[straIk]v t.& v i.(struck，struck)打；撞击；罢工n.罢工strike...into one’s heart使……刻骨铭心④from time to time不时；偶尔(相当于every now and then)⑤bring back to life使复生；使复活⑥either...or...或者……或者……；要么……要么……(连接并列结构)⑦unsuitable adj.不合适的，不适当的suitable adj.合适的，适宜的suit v t.适合；合身，相配；合(某人心意)n．套装⑧initial[I'nIʃl]adj.最初的；开始的⑨requirement n．要求require v．要求○10in vain白费力气；枉费心机vain[veIn]adj.虚荣的；自负的；徒劳的⑪diversity n．变化，不同，多样化⑫mean doing sth.意味着做某事mean to do sth.打算做某事⑬resist[rI'zIst]v t.抵抗；对抗resist后常接v.ing作宾语。
高二英语新课改人教版选修8unit2Section Ⅴ课时作业(含答案解析)
Ⅰ单句语法填空1．Mr. Liu had no idea what had happened to his son at school.2．He gave the poor girl the schoolbag, which his father bought for him yesterday.3．I have no idea how he has raised so much money in such a short time.4．News has spread that more high school graduates will be admitted into universities.5．The possibility that the majority of the labor force will work at home in the future is strong.6．I’ve come to the conclusion that it was very wise of us to do that.7．There is much chance that Bill will recover from his injury.8．His suggestion that the meeting should be delayed was turned down.9．The question who should do the work requires further consideration.10．We expressed the hope at the airport that they would come and visit China again.Ⅱ阅读理解Aquaculture—or sea farming, as it is sometimes called—is one of the brightest hopes for finding an answer to the problem of a world food shortage. Although it may be years before aquaculture yields(产出) really large quantities of food, it is already partially successful. One of its successes is the growing of oysters(牡蛎)．Oyster farming is a big new business on Cape Cod, where large crops of oysters have been harvested. The waters there were famous for delicious oysters until the supply gave out about fifteen years ago. “There’s a whole generation of people who have never eaten oysters，”says Karl Touraine, marketing director of Aqua Dynamics Corporation, a company that grows oysters on strings hanging from metal racks(金属架). “For about twenty years the oyster has been in short supply, and our aim is to change this by using new, modern growing techniques，”he explains.“Wareham, on Cape Cod, is the first place in the United States where oysters are being grown on racks just off the bottom of the sea，”says Hank McAvoy of the National Marine Fisheries Service in Gloucester. “But there’s nothing new about offbottom raising, ”Mr. McAvoy adds. “It’s been done successfully in Norway and Australia and, in the last few years, in Spain. The Japanese have used this form of aquaculture for years, and they’re the most successful, with a yearly crop of fortysix thousand pounds of shelled oysters to the acre.”The Aqua Dynamics group grows oysters on strings, away from the bottom so that the oysters’enemies cannot reach them. “When an oyster can avoid enemies and live in unpollutedwater with plenty to eat, he’ll grow fat in four years，”Karl Touraine explains. “Oysters will attach themselves to almost anything they can，”he continues. “At Wareham, we use shells which we tie with nylon strings hanging from metal racks. We lower the strings into the water, leaving at least a foot of water between the lowest shell and the bottom.”“So far the growth has been excellent and the taste is just delightful，”Mr. Touraine notes happily.【解题导语】本文是一篇说明文。
(人教版)高中英语选修8同步作业：Unit 2 Section 2 课后(含答案)
Unit 2Section ⅡⅠ.单句语法填空1.(2016·天津卷改编）The manager put forward a suggestion that we should have an assistant.There is too much work to do.2.The problem whether we should continue to do the experiment has been solved.3.The news that house prices will fall has caused many people to sell their houses at lower prices.4.The fact that he has failed for several times makes him very upset.5.We have some doubt whether they can complete the task on time.6.There is no doubt that Zhang Wei will keep his promise.7.Jim got to know the news that the whole village was in great danger.8.Do you know the news that/which Jim told me?9.The assumption that human clones have already born hasn't been proved yet.rmation has been put forward that more middle school graduates will be admitted into universities.Ⅱ.单句改错1.The only way to succeed at the highest level is to have total belief which you are better than anyone else on the sports fields.thatwould be divided into 2.We accepted his suggestion that the whole classshouldthree groups. 3.He raised the question wherecouldthey they could get the machine needed for the project.4.The policeman has received the command from the policeman station that he should must wait until help comes.5.Along with the letter was his promisethat whether he would visit me on the next Christmas. 6.If it were not for the fact that shetdidn't wouldn' have time, I would ask her to lend me a hand. 7.The news spread quickly through the villagethatwhen the war had ended, making the villagers wild with joy. 8.You have no idea how worried was I I was then. 9.In 2003 scientists made the decision that Dolly the sheepshould must be put to death.10.There is a fierce debate over the questionwhetherif human cloning should be allowed.Ⅲ.阅读理解Surviving Hurricane Sandy (飓风桑迪) Natalie Doan, 14, has always felt lucky to live in Rockaway, New York.Living just a few blocks from the beach, Natalie can see the ocean and hear the waves from her house.“It 's the ocean that makes Rockaway so special,” she says.On October 29, 2012, that ocean turned fierce.That night, Hurricane Sandy attacked the East Coast, and Rockaway was hit especially hard.Fortunately, Natalie's family escaped to Brooklyn shortly before the city's bridge closed.When they returned to Rockaway the next day, they found their neighborhood in ruins.Many of Natalie's friends had lost their homes and were living far away.All around her, people were suffering, especially the elderly.Natalie's school was so damaged that she had to temporarily attend a school in Brooklyn.In the following few days, the men and women helping Rockaway recover inspired Natalie.V olunteers came with carloads of donated clothing and toys.Neighbors devoted their spare time to helping others rebuild.Teenagers climbed dozens of flights of stairs to deliver water and food to elderly people trapped in powerless high rise buildings.“My mom tells me that I can't control what happens to me,”Natalie says.“but I can always choose how I deal with it.”Natalie's choice was to help.She created a website page，matching survivors in need with donors who wanted to help.Natalie posted introduction about a boy named Patrick, who lost his baseball card collection when his house burned down.Within days, Patrick's collection was replaced.In the coming months, her website page helped lots of kids:Christopher, who received a new basketball; Charlie, who got a new keyboard.Natalie also worked with other organizations to bring much needed supplies to Rockaway.Her efforts made her a famous st April, she was invited to the White House and honored as a Hurricane Sandy Champion of Change.Today, the scars(创痕) of destruction are still seen in Rockaway, but hope is in the air.The streets are clear, and many homes have been rebuilt.“I can't imagine living anywhere but Rockaway,”Natalie declares.“My neighborhood will be back, even stronger than before.”语篇导读这是一篇记叙文。
高中英语(人教版)选修八Unit 2 Cloning Language points课时作业 (6)
Unit 2 Cloning Language points课时作业[跟踪训练]Ⅰ.语境填词1.I feel deeply (honor) to have the opportunity to meet with you.2.She was one of the most (inspire) people I’ve ever met.3. (person) arises from within and makes us who we are.4.It’s important to answer her questions as (honest) as you can.5.The (educate) middle class led the move towards independence.Ⅱ.单项填空6.They gave money to the old people’s home either or through their companies.A.legallyB.sincerelyC.personallyD.deliberately7.Leaving a promising career is just one of the which my mother made for my family as we moved around the worldA.programsB.sacrificesC.contributionsD.cooperation8.It is pure that Richard and Julia have come up with the same approaches to the problem.A.coincidenceB.incidentC.dilemmaD.occasion9.I think whoever makes contributions to the company than the others should get income.A.greater；a highestB.more greater；a higherC.greater；the highestD.more greater；the higher10.—Jenny was to hospital with a soaring temperature this morning.—Really？I’ll go to see her this evening.A.admittedB.submittedC.distributedD.sentencedⅠ.完形填空Leonardo was born with an undeveloped left hand.He couldn’t use his left hand for 1 tasks like grasping objects. 2 ，an incident during his childhood aroused his 3 in building things.A few years later，he built his first prosthetic hand (假手).Although it allowed him to graspobjects，it was not as good as he 4 .While researching online，he found a foundation that provided prostheses for 5 kids.He got in touch with the foundation and 6 one.Unfortunately，it was too large for him to use 7 .Despite many difficulties，Leonardo never 8 his dream.He decided to create his own robotic hand. 9 by the given one，he designed his own robotic hand which 10 strings that pick up the 11 of his wrist and transmit them to the fingers.After countless 12 ，Leonardo finally had an advanced hand that exactly 13 him，which makes him do things that he 14 dreamed of.And best of all，while advanced bionic(仿生的) hands end up costing around 15,000，he only spent 100 on his.It’s a great 15 for anyone who can’t 16 to spend tens of thousands of dollars.Leonardo’s amazing story has already made him 17 in some other countries，and he has even received several 18 for robotic hands.He built one for a 7-year-old girl，but usually he 19 commercially available models，because his is not as strong as he would like.He also decides to 20 himself to building advanced robotic prostheses.1.A.basic plexC.dangerousD.honorable2.A.Instead B.HoweverC.BesidesD.Therefore3.A.conscience B.admirationC.interestD.suspicion4.A.expected B.advertisedC.promisedD.designed5.A.disorganized B.homelessC.carelessD.disabled6.A.promoted B.donatedC.collectedD.received7.A.properly B.frequentlyC.naturallypletely8.A.let out B.held downC.gave upD.drove off9.A.Persuaded B.InspiredC.ChallengedD.Trained10.A.made up B.put asideC.took overD.depended on11.A.angles B.musclesC.movementsD.structures12.A.doubts B.effortsC.achievementspetitions13.A.impresses B.puzzlesC.amazesD.fits14.A.previously B.directlyC.casuallyD.gradually15.A.treatment B.experimentC.optionD.right16.A.offer B.affordC.determineD.prepare17.A.confident B.famousC.generousD.sociable18.A.reasons B.preferencesC.requestsD.substitutes19.A.recommends B.resistsC.replacesD.represents20.A.reduce B.adjustC.limitD.devoteⅡ.阅读理解The word proactivity is fairly common in management literature，but you won’t find it in the dictionary.It means that as a human being you take responsibility for your own life.Look at the word responsibility：ability to choose your response，response-ability.Effective people are proactive because they take responsibility.Their behaviour is a product of their own decisions，based on values，rather than being a product of their own conditions，based on feelings.For instance，you are planning a picnic with your family.You’re excited.You have all the preparations.You’ve decided where to go，and then it becomes stormy，killing your plan.Proactive people carry weather within them.They realize what their purpose really was，and they creatively have a picnic elsewhere even if it’s intheir own basement with some special games，and make the best of that situation.The opposite of being proactive is to be reactive.Reactive people would say，“What’s the use？”“We can’t do anything.”“Oh，this is so upsetting after all of our preparations and arrangements.”They try to persuade the people around them and usually the picnic will be cancelled.Being proactive is really just being true to your human nature.Your basic nature is to act，and not to be acted upon.That’s true，despite widely accepted theories of determinism used to explain human nature.Determinism says that you don’t really choose anything and that what you call choices are nothing more than automatic responses to outside conditions.The language of reactive people is like：“I can’t.”“Don’t have time.”“I have to.”“I must.” The whole spirit of that language is the transfer of responsibility.They think things are determined by their environment，or by their conditions，or by their conditioning or their genetic makeup.Psychologically，people who believe they are determined will produce the evidence to support the belief，and they increasingly feel victimized and out of control.They’re not in charge of their life at all.On the contrary，a proactive person exercises the free will，the freedom to choose the response that best applies to his values.In that way，he gains control over the circumstances，rather than being controlled by them.21.According to the passage，a proactive person’s behaviour can result from .A.the environmentB.an inner beliefC.the genetic makeupD.a temporary feeling22.When a picnic plan is threatened by a sudden storm，reactive people will probably .A.have the picnic as plannedB.make the best of the picnicplain and give up the picnicD.find somewhere else for the picnic23.What does “carry weather within them” in the second paragraph probably mean?A.Manage to improve the weather.B.Give in to the weather passively.C.Stress the influence of the weather.D.Find a solution to the weather problems.24.It can be concluded from the passage that determinists .A.accept things passivelyB.are in charge of themselvesC.are similar to proactive peopleD.respond to outside conditions actively答案精析高考高频单词与短语识记排查跟踪训练Ⅰ.1.honored 2.inspiring 3.Personality 4.honestly catedⅡ.6.C[考查副词辨析。
【优化方案】高二英语(人教版必修8)Unit2SectionⅡ课时作业.docx
Authors Kyle Kurpinski and Terry D ・ Johnson pretty much have me convinced that human cloning is quite possible and is a future certainty.Kurpinski and Johnson are both bioengineering experts; unlike similar scientists you have seen in the movies, they both have a sense of humor.What surprises me is that Kurpinski and Johnson are able to take something as complicated as DNA and make it understandable.The book Hoiv to Defeat Your Own Clone teaches us what is now known as DNA- encoded （编码），how that happens, and why people with similar DNA don' t look or act the same.The book not only helps us get a basic understanding of what DNA and its purpose are, but also explains cloning and stem cell （干细胞）research.lt occurs to me that a lot of people who are against stem cell research don't know what they are protesting about.The authors provide a history of cloning, as well as information about stem cells.The real fun starts when the authors attack various myths about cloning.Obviously, too many people have been watching too many bad movies and television programs.Remember they^ re just fictional stories.IG somehow, scientists manage to clone you.Twenty years from now your clone isn’t going to kill you.Among the myths explored and exploded are that a clone will know everything you know and will act as you do, that heads which are cut off can be kept alive, and that a clone has no belly button （月上脐）• Many of the myths are ridiculous but many people believe （hem.Kuipinski and Johnson also detail some bio- improvements u that really work You see, genes can be controlled to help you sleep better and become smarter, healthier, and taller. Well...not exactly you, but future gen erations.If you do wind up in a battle with your own clone, who will be considerably younger than you, remember that it is not you and that it doesn‘ t know what you know.解析：选 C 。
人教版选修八Unit 2 Cloning Grammar课时作业 (2)
Unit 2 Cloning Grammar课时作业第一节完形填空阅读下面短文，从短文后各题所给的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。
I was a self-employed writer. But I had been in a bad 1 since my new neighbor moved in. Whenever I became 2 to write, I could hear a girl singing next door. She didn’t sing well at all, even3 -it was absolutely a headache for me.4 , it became a daily routine for me to5 . How couldI keep up my 6 and go on writing?One day, it was too noisy and my thoughts were entirely 7 . I had my husband go to 8 her about the matter. Minutes later, he returned. “That girl is only 17,” he9 with a sad look, “but she has bone cancer.” My mind suddenly went10 . “Her mother said tha t the more 11 it is, the louder her daughter sings. It helps her 12 the pain. The poor mother begs our pardon for interrupting us.” In a flash, I felt guilty about my thoughtless13 .From that day on, I no longer felt anything 14 , and even got used to her singing-I felt as if15 by the smell of flowers. Afterwards I was on business and happened to know the girl had been16 into a hospital. When I returned home in late summer, I 17 felt that something was 18 . I couldn’t hear the girl next door sing anymore.“However hard the winds blow, you will stray(走失) no more from my 19 …You shall believe that I am brave only with you…” Her singing always20 in my mind. I hope the voice is everlasting for you, me, and everyone.1. A. appetite B. condition C. mood D. state2. A. bored B. inspired C. safe D. afraid3. A. out of place B. out of fashion C. out of order D. out of tune4. A. Gradually B. Suddenly C. Surprisingly D. Particularly5. A. understand B. explain C. tolerate D. follow6. A. interests B. head C. hope D. spirits7. A. disturbed B. lifted C. buried D. touched8. A. indicate B. approach C. complain D. scold9. A. cried B. yelled C. sighed D. declared10. A. cold B. silent C. calm D. blank11. A. hurtful B. wonderful C. effortless D. difficult12. A. accelerate B. gather C. ease D. cover13. A. manners B. step C. movement D. action14. A. personal B. wrong C. complicated D. stubborn15. A. blown B. absorbed C. greeted D. moved16. A. admitted B. laid C. transformed D. suspended17. A. instead B. somehow C. otherwise D. anymore18. A. explicit B. abstract C. complex D. missing19. A. company B. distinction C. prejudice D. reputation20. A. develops B. rises C. flows D. changes第二节语法填空阅读下面材料，在空白处填入1个适当的单词或括号内单词的正确形式。
高二英语人教版选修8unit2Section Ⅴ Writing课时作业(含答案解析)
Section ⅤWriting辩论性议论文文体感知议论文是一种以议论为主要表达方式的文体。
就是摆事实、讲道理，并要求通过多方面的分析，把道理说通、说透。
议论文有三要素，即论点、论据和论证。
论点的基本要求是：观点正确，认真概括，有实际意义，恰当地综合运用各种表达方式；论据的基本要求是：真实可靠，充分典型；论证的基本要求是：推理必须符合逻辑。
增分佳句1．Opinions vary/differ from person to person.人和人的观点不一样。
2．Some people think/hold the view that cloning humans is interesting and can bring people back to life.一些人认为克隆人类很有趣并且能使人类复活。
3．Whether cloning humans is right or not is difficult to say right now.现在很难说克隆人类是对还是不对。
写作模板Recently we have had a discussion about whether we should ________．(导入话题) Our opinions are divided on this topic.(观点有分歧)Most of the students are in favor of it.(正方观点) Here are some reasons. First ________. Second ________. Finally ________．However, the others are strongly against it.(反方观点) Their reasons are as follows. In the first place ________. What is more ________. In addition ________．Personally speaking, the advantages overweigh the disadvantages, for it will do us more good than harm, so I support it ________(个人观点)．写作要求假如你是李华，你班同学最近参加了某报社组织的一场讨论。
高中英语(人教版)选修八Unit 2 Cloning Language points课时作业 (3)
Unit 2 Cloning Language points课时作业[跟踪训练]Ⅰ.语境填词1.The enemy attacked (fierce)，but the line held firm.2.Dad，I’m a (grow) woman. I know what I’m doing.3.We can see a lot of (蝴蝶) flying in the sky.4.He stopped and watched with amusement to see the child so (absorb).5.Don’t count your chickens before they’re (孵化).Ⅱ.单项填空6.We complained to the travel agency about the horrible service during our trip，but no one has by now.A.respondedB.advocatedC.recoveredD.survived7. the virtual world of RealCine，the headsets even have small openings smells to match the environment.A.Adding to；give outB.Added to；give offC.To be added to；giving offD.To add to；giving out8.After a successful operation，Catherine is beginning to and will soon come back to school.A.pick upB.wake upC.grow upD.show up9.Wild animals have been over hunted，and as result，some of them are among the animals in danger.A.a；theB.a；/C.the；aD./；the10.This picture was taken a long time ago.I wonder if you can my father.A.find outB.pick outC.look outD.speak outⅠ.完形填空Once upon a time in a land far away，there was a 1 old man who loved everything：animals，spiders，insects...One day 2 walking through the woods the nice old man found a cocoon(茧) of abutterfly.He 3 it home.A few days later，a small 4 appeared；he sat and watched the butterfly for several hours 5 it struggled to force its body through that little hole.Then it seemed to 6 making any progress.It appeared as if it had gotten as far as it could and it could go 7 farther.Then the man decided to help the 8 ，so he took a pair of scissors and 9 the remaining bit of the cocoon.The butterfly then came out 10 .11 it had a swollen(肿胀的) body and small，shriveled(枯萎的) wings.The man 12 to watch the butterfly because he expected that，at any moment，the wings would 13 to be able to support the body，which would contract in time.Neither happened！14 ，the butterfly spent the rest of its life crawling(爬) around with a swollen body and shriveled wings.It never was able to 15 .What the man in his kindness and haste did not understand was that the restricting(限制的) 16 and the struggle required for the butterfly to 17 the tiny opening were nature’s way of forcing fluid(液体) from the body of the butterfly into its wings so that it would be ready for flight once it achieved its 18 from the cocoon.Sometimes 19 are exactly what we need in our life.If we were allowed to go through our life without any challenges，it would weaken us.We would not be as 20 as what we could have been.And we could never fly.1.A.cold B.kindC.politeD.tiresome2.A.unless B.ifC.whileD.because3.A.took B.movedC.circulatedD.dashed4.A.sign B.shadowC.shadeD.opening5.A.and B.untilC.asD.then6.A.stop B.preventC.appealD.adapt7.A.any B.moreC.noD.much8.A.bug B.butterflyC.animalD.fly9.A.took down B.took apartC.cut downD.cut open10.A.greedily B.easilyC.hardlyD.quickly11.A.Generally B.EvenC.SoD.But12.A.sought stedC.continuedD.began13.A.enlarge B.shortenC.tightenD.darken14.A.In conclusion B.In timeC.In factD.In particular15.A.walk B.flyC.fleeD.run16.A.wing B.taleC.subjectD.cocoon17.A.get out B.get throughC.get awayD.get down18.A.freedom B.outcomeC.balanceD.reliability19.A.struggles B.passionsC.mannersD.spirits20.A.weak B.intelligentC.giftedD.strongⅡ.阅读理解In recent years，much of the sea ice that polar bears use as a hunting platform for seal meals has melted，forcing some bears—particularly young males—farther north or onto land，where they are not as skilled at hunting.When stuck on land for months，a polar bear typically is forced to survive on its own fat reserves.The bears were listed earlier this year as a threatened species under the U.S.Endangered Species Act as populations have declined.Meanwhile，snow geese are booming near the western Hudson Bay，and there are in fact too many of them.Their eggs can be a good food source.The geese nest on tundra(冻原，苔原) that some bears have retreated to.“Over 40 years，six subadult(接近成年的) male bears were seen among snow goose nests，and four of them were sighted after the year 2000，”says Robert Rockwell.“I’ve seen a subadult male eat goose eggs whole or press its nose against the shell，break it，and eat the contents.”Ice is melting，on average,0.72 days earlier each year in the region studied.Snow geese are hatching eggs about 0.16 days sooner each year，according to Rockwell and his graduate studentLinda Gormezano.Current trends indicate that the arrival of polar bears will correspond to the average hatching period in 3.6 years，and egg consumption could become a viable option，which the researcher concluded in a statement released today.A polar bear，the largest land carnivore(食肉动物)，would need to consume the eggs of 43 nests to replace the energy gained from the average day of hunting seals，but Rockwell and his colleagues figure that while many polar bears may starve in coming years，the resourceful animals just might survive disappearance.Polar bears survived a warm period about 125,000 years ago，when sea level was 12 to 18 feet higher than it is now and trees lived above the Arctic Circle，the scientists point out.“They’ve been through the warm period before，” Rockwell said.The polar bears’ potential movement to a diet of more eggs brought to mind a quote by Ilkoo Angutikjuak，an Inuit who lives in the Canadian province of Nunavut，in the February 2008 issue of Natural History magazine，Rockwell said.Angutikjuak said：“The animals will adapt.I’ve heard that because they depend on sea ice，polar bears will disappear，but I don’t believe it.They are very adaptable.As the sea ice changes，polar bears might get skinnier and some might die，but I don’t think they will disappear.”21.What can we infer about the polar bears from the passage?A.They have a strong ability to survive.B.They tend to withdraw from the tundra.C.Their hunting skills have declined sharply.D.Their main food source is goose eggs now.22.What does the underlined word “viable” in Paragraph 4 mean?A.Challenging.B.Practical.C.Destructive.D.Outdated.23.Which of the following statements does Rockwell agree with?A.Goose eggs are adequate for polar bears.B.Polar bears’ food variety is relatively limited.C.Polar bears might adapt to the global warming.D.Many polar bears will starve to death in future.24.What’s the passage mainly talking about?A.Polar bears pose a major threat to the geese.B.Polar bears can live in harmony with the geese.C.Polar bears are disappearing due to climate change.D.The geese probably could save polar bears from extinction.答案精析高考高频单词与短语识记排查跟踪训练Ⅰ.1.fiercely 2.grown 3.butterflies 4.absorbed 5.hatchedⅡ.6.A[respond答复，回应；advocate主张，拥护；recover恢复，找回；survive幸存，生还。
高二英语人教版选修8 unit2Section Ⅰ课时作业(含答案解析)
Ⅰ阅读理解ACreative Alarm ClocksDumbbell(哑铃) alarm clockIt is not a real dumbbell, but you have to shake it up and down 30 times to stop the alarm clock. And there is no stop button. Of course you will be totally refreshed by then. Don’t be lazy and take some exercise in the morning!Target alarm clockThe alarm is ringing at the time you set it for! Do you see the target? Then hit it to stop the sound with a laser gun(激光枪). Of course you have to be fully awake if you don’t want to miss the target.Flying alarm clockI’m sure you won’t be able to simply ignore this alarm as you usually do, because it flies! Its propeller(螺旋桨) flying off the alarm is the key. Before the frightening alarm sounds drive you crazy, you’d better quickly put the key back.BanclockHave you been keeping a pocketful of change for some time without knowing what to do with it? Maybe you can put those coins in your alarm. This is both an alarm clock and a money box. It only stops ringing if you put a coin in it.IQ alarm clockWhat about a brain workout in the morning? IQ alarm will go off and ask you a set of IQ questions. Don’t even think about removing the battery, because it is hard to open. The only way to shut it off is to answer all questions correctly.Mr. Bump-off-the-wall alarm clockAn alarm clock is so annoying when you are too tired and sleepy to get up. You can release your anger on Mr. Bump. It looks like a blue ball covered with “bandages”. Just throw this alarm at the wall to silence it.【解题导语】本文是一篇说明文。
高中英语(人教版)选修八unit 2 cloning learning about language课时作业 (2)
Unit 2 cloning learning about language课时作业I．阅读理解ABrushing your teeth regularly could help to prevent bowel(肠) cancer，a study suggests.This is because the mouth bacteria that cause bleeding gums(牙龈) can travel via the blood to the bowel where they could result in cancer or worsen existing tumours(肿瘤).The bug fusobacterium(梭杆菌) has been found to be hundreds of times more common in cancerous tumours than in normal cells.Now researchers have found that the bacteria can make pre-cancerous growths in the bowel turn cancerous.They can also make any existing tumours in the bowel grow larger.Scientists are doing research on how the bacteria make their way to the bowel through the blood stream.One theory is that it may happen if a person has bleeding gums.The researchers found that the bacteria have a protein that allows them to stick to sugar molecules attached to friendly growths called polyps(息肉) as well as cancer tumours in the bowel.The bacteria are anaerobic—they do not breathe oxygen—so are well suited to live in the bowel.After sticking to the polyps or tumours，the presence of the bacteria promotes their growth，according to the research.By targeting this process，the researchers believe that it may lead to new drugs to treat bowel cancer which around 1 in 20 of us will develop in our lifetimes.Co-author Wendy Garret，a professor at Harvard University said a greater understanding of the mechanism(机理)may help stop people developing cancerous tumours.She added，“More importantly，our findings suggest that the new drugs could potentially prevent these bacteria from worsening bowel cancer.”As well as worsening cancer，the bacteria have also been found to worsen the bowel condition ulcerative colitis(溃疡性结肠炎)，which in turn is also linked to cancer.So，the researchers warn that mouth health may be an indicator of other lifestyle factors linked to cancer.1.From the first paragraph，we can learn that .A.bowel cancer may be cured by brushing teeth regularlyB.scientists have found the reason for bowel cancerC.brushing teeth regularly helps you fight bad breathD.good mouth health has a good effect on preventing bowel cancer2.According to researchers，if a person suffers from bleeding gums，.A.bacteria may enter the bowel with blood and increase the risk of cancerB.the bug fusobacterium may decrease in the cellsC.measures must be taken to prevent blood flowing into bowelD.he should go to the dentist to have the teeth pulled out3.Chances are that through this research.A.people will get rid of the symptoms of bleeding gumsB.people will never suffer from bowel cancerC.scientists will develop more effective drugs to deal with bowel cancerD.scientists will find ways to stop fusobacterium worsening gums4.What’s the author’s purpose in writing this passage?A.To tell people not to worry about bowel cancer.B.To warn people of the danger of bowel cancer.C.To educate people about the ways to stop bleeding gums.D.To make people understand the importance of brushing teeth regularly.BThe domestic cat is a contradiction.No other animal has developed such a close relationship with human，while at the same time demanding and getting such self-determining movement and action.The cat manages to remain a tame(驯化的) animal because of the process of its upbringing.By living both with other cats(its mother and brother and sisters) and with human(the family that has adopted it) during its babyhood，it is considered to belong to both species.It is like a child that grows up in a foreign country and as a consequence becomes bilingual(双语的).The young cat becomes bimental.It may be a cat physically but mentally it is both feline(猫科的) and human.Once it is fully adult，however，most of its responses are feline ones，and it has only one major reaction to its human owners.It treats them as pseudo(假的) parents.This is rather different from the kind of bond that develops between human and dog.The dog sees its human owners as pseudo parents，as does the cat.On that score the process of attachment is similar.But the dog has an additional link.Canine(犬科的) society is group-organized；feline society is not.Dogs live in packs with tightly controlled status relationships among the individuals.There are top dogs，middle dogs，and bottom dogs and under natural circumstances they move around together，watching and following one another the whole time.So the adult pet dog sees its human family both as pseudo parents and as the dominant(主宰的) members of the pack，hence its well-known reputation for obedience and loyalty.Cats do have a complex social organization，but they never hunt in packs.In the wild，most of their day is spent in individual stalking(潜行追踪).Going for a walk with a human，therefore，has no appeal for them.And as for“coming to heel”and learning to“sit”and “stay”，they are simply not interested.Such drills have no meaning for them.Because of this difference between domestic cats and domestic dogs，cat-lovers tend to be rather different from dog-lovers.As a rule cat-lovers have a stronger personality bias(偏向) toward working alone，away from larger group.Artists like cats；soldiers like dogs.The highly-praised “group loyalty” phenomenon can’t be seen in both cats and cat-lovers.If you are a company person，a member of the gang，or a person picked for the military team，the chances are that at home there is no cat curled up in front of the fire.The ambitious politician，the professional athlete，these are not typical cat-owners.It is hard to picture football players with cats in their laps—much easier to imagine them taking their dogs for walks.Those who have studied cat-owners and dog-owners as two distinct groups report that there is also a gender bias.The majority of cat-lovers are female.This bias is not surprising in view of the division of labor obvious in the development of human societies.Prehistoric males became specialized as group-hunters，while the females concentrated on food-gathering and childbearing.This difference contributed to a human male’s “pack mentality” that is far less marked in females.Wolves，the wild ancestors of domestic dogs，also became pack-hunters，so the modern dog has much more in common with the human male than with the human female.The argument will always go on—feline self-sufficiency and individualism against canine camaraderie (友情) and good-fellowship.But it is important to stress that in making a valid point I have caricatured the two positions.In reality, there are many people who enjoy equally the company of both cats and dogs.And all of us，or nearly all of us，have both feline and canine elements in our personalities.We have moods when we want to be alone and thoughtful，and other times when we wish to be in the center of a crowded，noisy room.5.The primary purpose of the passage is to .A.advocate dogs as making better pets than catsB.distinguish the different characteristics of dogs and catsC.show the poor nature of dogs because of their loyalty characteristicsD.emphasize the role that human plays in the personalities of domestic pets6.According to the passage，the domestic cat is a contradiction because .A.it possesses the physical characteristics of both feline and humanB.it can’t be tamed and will always keep its wild habitsC.it refuses to be dominated despite living comfortably with humanD.although it plays the part of a pet，it really dominates human beings7.The underlined sentences in the second paragraph are used to stress .A.the disharmonious relationship between cats and human beingsB.a difference between cats and dogs that emphasizes cats’ natureC.the ignorance of dogs，which makes them more loyal petsD.the laziness of cats that keeps them from being pack animals8.The author suggests in the third paragraph that cat-lovers are than dog-lovers.A.less dependentB.less creativeC.more successfulD.more outgoing9.The fourth paragraph indicates that human females .A.preferred to raise domestic dogs to help with food-gatheringB.developed independent roles that required less group behaviorC.had to gather food because they were not strong enough to huntD.were negatively affected by the division of labor of human societies10.The underlined four sentences in the last paragraph provide .A.a summary of the points made earlierB.a reason for the statements made earlierC.an adjustment of the position taken earlierD.an example of the main points made earlierII.任务型阅读(共10小题；每小题1分，满分10分)请认真阅读下面短文，并根据所读内容在文章后表格中的空格里填入一个最恰当的单词。
高中英语(人教版)选修八Unit 2 Cloning Language points课时作业 (4)
Unit 2 Cloning Language points课时作业[跟踪训练]Ⅰ.语境填词1.The (press) of the crowd made it impossible for me to stand still.2.The teacher (解释) the difficult point of grammar to me.3.Nowadays a lot of adults go to evening schools for further (educate).4.The (science) is an international leader in the field of mathematics.5.Many young students are (疯狂的) about computer games.Ⅱ.单项填空6.Our relationships give our lives meaning，but we can sometimes get lost in technology and forget to be with the people in our lives.A.rigidB.honestC.presentD.patient7.If we leave right away，we’ll arrive on time.A.hopefullyB.curiouslyC.occasionallyD.gradually8.We’ve just moved into a bigger house and there’s a lot to do.Let’s it.A.keep up withB.do away withC.get down toD.look forward to9.The position you are applying requires good computer skills and fluency in English.A.in whichB.with whichC.for whichD.to which10.Whoever spit in pubic will be fined 50 yuan in effort to improve citizen’s behavior ahead of historic sporting event to be held next year.A.the；theB.the；/C./；theD.an；theⅠ.完形填空When I was young at school，I loved to talk，a characteristic not always appreciated by Miss Jordan，my tenth-grade English teacher.She was a teacher no one wanted because she was so 1 .She stood about five-foot-five，was very thin and wore her hair pulled back in a way that gave her a horsy 2 .She wore those half-circular reading glasses.Whenever she got upset，she would lower her head and look at you over the top of her glasses.One day in her class I was busy talking.I didn’t 3 she had stopped teaching and was 4straight at me.“Young lady，I would like to see you after school.” Later Miss Jordan 5 in a low，but very firm voice that showed she expected me to listen when she was talking.For 6 she told me to write a thousand words essay on education and its effect on the economy(经济).She wanted it in by the following Wednesday.Well，I met my deadline.I was 7 .It was a good paper.And I expected a sign of 8 from her.The next day in class，9 ，she was looking at me over her glasses.She called me forward and 10 my paper.“Go back and rewrite，” she said.“Remember，each paragraph is supposed to begin with a topic sentence.”When she gave my paper back a second time，she 11 the grammer.The third time，the spelling.The fourth time，it was punctuation.The fifth，it wasn’t neat enough.I was 12 ！The sixth time，I rewrote the whole paper 13 ，in ink，leaving generous space.When she saw it，she removed her glasses and smiled.She finally 14 the paper.After that，I put the whole thing out of my 15 .Two or three months passed.One day Miss Jordan came into the class and said to us，“Class，do you still 16 an essay contest held citywide？They’ve announced the 17 .I am happy to inform you that Mary has won the third prize in the essay contest—‘On the Impact of Education on the Economy’.”I was amazed and 18 .It was the first time I had ever won a prize.Years later，I told a reporter that story，and my comments—including my unfriendly 19 of Miss Jordan’s appearance.Miss Jordan wrote me，and said that her appearance wasn’t what was important.What was important was the 20 I had learnt.When I wrote and rewrote that paper for her，I began to learn how to discipline myself.1.A.open-minded B.strictC.carefulD.cold-hearted2.A.look B.shapeC.styleD.character3.A.guess B.believeC.imagineD.realize4.A.waving ughingC.staringD.runningplained B.whisperedC.explainedD.apologized6.A.objection B.motivationC.punishmentD.encouragement7.A.confident B.concernedC.nervousD.helpful8.A.suggestion B.approvalmentD.respect9.A.otherwise B.moreoverC.howeverD.therefore10.A.changed B.tore C.opened D.returned11.A.mastered B.correctedC.taughtD.identified12.A.relieved B.gratefulC.relaxedD.sick13.A.carelessly B.eagerlyC.vaguelyD.slowly14.A.published B.acceptedC.finishedD.studied15.A.mind B.list C.question D.sight16.A.remember B.enterC.expectanize17.A.plans B.winnersC.participantss18.A.curious B.anxiousC.thrilledD.enthusiastic19.A.conclusion B.reactionC.recommendationD.description20.A.lesson B.meaning C.skill D.resultⅡ.阅读理解Humans have sewn by hand for thousands of years.It was said that the first thread was made from animal muscle and sinew(肌腱).And the earliest needles were made from bones.Since those early days，many people have been involved in the process of developing a machine that could do the same thing more quickly and with greater efficiency.Charles Wiesenthal，who was born in Germany，designed and received a patent on a double-pointed needle that eliminated the need to turn the needle around with each stitch(缝合) in England in 1755.Other inventors of that time tried to develop a functional sewing machine，but each design had at least one serious imperfection.Frenchman Barthelemy Thimonnier finally engineered a machine that really worked.However，he was nearly killed by a group of angry tailors when they burned down his garment factory.They feared that they would lose their jobs to the machine.American inventor Elias Howe，born on July 9,1819，was awarded a patent for a method of sewing that used thread from two different sources.Howe’s machine had a needle with an eye atthe point，and it used the two threads to make a special stitch called a lockstitch.However，Howe faced difficulty in finding buyers for his machines in America.In frustration，he travelled to England to try to sell his invention there.When he finally returned home，he found that dozens of manufacturers were adapting his discovery for use in their own sewing machines.Isaac Singer，another American inventor，was also a manufacturer who made improvements to the design of sewing machines.He invented an up-and-down-motion mechanism that replaced the side-to-side machines.He also developed a foot treadle(脚踏板) to power his machine.This improvement left the sewer’s hands free.Undoubtedly，it was a huge improvement of the hand-cranked machine of the past.Soon the Singer sewing machine achieved more fame than the others for it was more practical，it could be adapted to home use and it could be bought on hire-purchase.The Singer sewing machine became the first home appliance，and the Singer company became one of the first American multinationals.However，Singer used the same method to create a lockstitch that Howe had already patented.As a result，Howe accused him of patent infringement(侵犯).Of course，Elias Howe won the court case，and Singer was ordered to pay Howe royalties(版税).In the end，Howe became a millionaire，not by manufacturing the sewing machine，but by receiving royalty payments for his invention.21.Barthelemy Thimonnier’s garment factory was burned down because .A.people did not know how to put out the fireB.Elias Howe thought Thimonnier had stolen his inventionC.workers who feared the loss of their jobs to a machine set fireD.the sewing machines couldn’t work finally22.Why did the court force Isaac Singer to pay Elias Howe a lifetime of royalties?A.Because the judge was against Singer for his surly attitude.B.Because Howe had already patented the lockstitch used by Singer.C.Because Singer had borrowed money from Howe and never repaid it.D.Because Singer and Howe had both invented the same machine.23.Which of the following would be the best title for this passage?A.The Early History of the Sewing MachineB.The Case Between Howe and SingerC.Patent Laws on the Sewing MachineD.A Stitch in Time Saves Nine答案精析高考高频单词与短语识记排查跟踪训练Ⅰ.1.pressure 2.explained cation 4.scientist 5.crazyⅡ.6.C[根据题干中的“get lost in technology”可知，我们有时候忘了陪伴我们生活中的人。
人教版选修八Unit 2 points课时作业 (3)
Unit 2 Cloning Language points课时作业第一节完形填空阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，选出可以填入空白处的最佳选项。
There he was, turning the corner of Hawley and Main Street like clockwork. His red hair seemed to catch the sunlight, giving his head a soft candle-flame glow. He____1____my eye, and up went his arm in his usual wave. As usual, I____2____back and gave him a warm smile. I didn't know his name, but he was very____3____to everybody. No matter the weather, I saw him walking out there almost every day.Having moved from a larger city, I wasn't used to waves from____4____. Actually, wherever we were, people____5____greet each other. We simply passed by each other, heads down, minding our own____6____.Perhaps that's why I____7____these daily waves. It felt great to be____8____and receive that message of "Hello!". On days when we didn't____9____to pass each other, I missed himand_____10_____if he was all right. The next day, I'd find myself driving with one eye onthe_____11_____. It was a happy reunion when I spotted him, and I'd wave first _____12_____.One night I was walking in the street, my thoughts_____13_____to "The Waver, wondering if I could be_____14_____enough to wave at people I didn't know.Just at the point, I heard a car_____15_____. I made eye contact with the person in the car, smiled and waved at her. The woman's face_____16_____, and she waved back. I was alittle_____17_____. I reminded myself, "It's okay. It's actually kind of cool!" I waved to everyone I saw the rest of the way home.Everyone at some point in their lives wonders if they've made any_____18_____to the world.I can tell you that you don't have to_____19_____the world thoroughly. It's enough to help sweeten it a little, even by a_____20_____wave.1. A. cured B. caught C. exposed D. absorbed2. A. waved B. glanced C. took D. saluted3. A. cautious B. reliable C. friendly D. thankful4. A. relatives B. colleagues C. employers D. strangers5. A. usually B. hardly C. extremely D. generally6. A. behaviors B. manners C. business D. appearance7. A. adopted B. enjoyed C. disliked D. encountered8. A. worried B. approved C. relieved D. noticed9. A. agree B. attempt C. intend D. happen10. A. predicted B. wondered C. believed D. assessed11. A. street B. building C. children D. pedestrians12. A. slightly B. kindly C. eagerly D. eventually13. A. delivered B. travelled C. struggled D. adapted14. A. mature B. curious C. lucky D. brave15. A. escaping B. following C. attacking D. approaching16. A. softened B. worsened C. exchanged D. tightened17. A. anxious B. upset C. surprised D. scared18. A. comment B. decision C. guide D. difference19. A. explore B. change C. inform D. acknowledge20. A. simple B. tough C. fresh D. concrete 【答案】1. B 2. A 3. C 4. D 5. B 6. C 7. B 8. D 9. D 10. B 11. A 12. C 13. B 14. D 15. D 16. A 17. C 18. D 19. B 20. A 第二节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式。
人教版高中英语选修八练习：unit 2 第2学时 learning about language(含答案)(精修版)
人教版英语精品资料（精修版）英语·选修8(人教版)Unit 2 Cloning第二学时 Learning about Language一、用所给单词的适当形式完成下列句子1．My personality________(differ)a lot from my sister's.答案：differs2．Tell me ________(exact)what he said.答案：exactlyCloning3．The ________(correct)of the article is some kind of ________(suffer)．答案：correction，suffering4．All the people present at the meeting raised ________(object)to his idea.答案：objection5．________(short)after his father's ________(die)，he dropped school.答案：Shortly，death6．Jackie Chen enjoys great ________(popular)both in Hong Kong and inland.答案：popularity7．The bedroom needs ________(far) __________(decorate)．答案：further, decoration8．His success is ________(mere)a problem of time.答案：merely9．________(able)to speak，he had to use body language.答案：Unable10．The fact that he is a ________(carry)of HIV often makes him very upset.答案：carrier二、词语活用用pay for，pay off，pay out，pay sb. off等词语自编一个小段落。
人教版选修八Unit 2 points课时作业 (1)
Unit 2 Cloning Language points课时作业第一节完形填空阅读下面短文，从短文后各题所给的A、B、C和D四个选项中,选出可以填入空白处的最佳选项。
During my second year in high school, I got sick and missed a few classes. When I 1 ,1 was greeted with three days of math and history homework, and several tests. 2 I went home from school that day tired, I had to stay up really late to finish them all.The next day at school, I got a shock: I' d totally forgotten to prepare for the 3 on English play Romeo and Juliet 4 my lunch hour! Worse still, I had 5 the in-class discussion. When lunch was finished, I went to the English room to face my certain doom （厄运）.All I could do was try to 6 on the questions I didn't know.As it turned out, I didn't know most of the questions. I was just about to give 7 when my pencil accidentally fell and broke. Standing by the blackboard sharpening my pencil, I 8 down and there wasthe answer sheet for the test! What good fortune ! I can kiss good-bye to all my 9 of failing the test! My heart started beating, and my brain 10 Yes! Read over the answers — quickly! This was quickly followed by another voice, No! You'll get caught! My mind turned back and forth, Yes! No! Yes! No! as if it were the 11 time in my entire life.Finally, I decided to finish the test on my own, without 12 ! I was satisfied with my decision but pretty 13 I would fail the test.The next day when I walked into the English room, my great joy of having been an14 soul changed into a wave of doom as I saw my test paper lying face down on my desk. I knew what awaited me. 1 stared at it a few seconds before I took the 15 to turn it over.You can only imagine my 16 when I learned that I had passed the test! I have never been so happy to see my 17 , a C -.My mom says the success that takes the most courage is 18 within. Now Iknow 19 what she means. Now not only can my conscience（良心）rest easy,but also I don't have to worry about getting caught and meeting a sad 20 like Romeo and Juliet.1. A. arrived B. appeared C. returned D. finished2. A. Although B. Because C. Until D. If3. A. lecture B. test C. essay D. play4.A. by B. upon C. over D. toward5. A. carried B. lost C. dropped D. missed6. A. depend B. guess C. agree D. improve7. A. in B.off C. out D. away8. A. wrote B. settled C. looked D. calmed9. A. worries B. loneliness C. tiredness D. boredom10. A. warned B. whispered C. shouted D. cried11. A. coldest B. saddest C. longest D. fastest12. A. suffering B. cheating C. checking D. thinking13. A. certain B. glad C. surprised D. relieved14. A. honest B. open C. optimistic D. energetic15. A. wisdom B. chance C. intention D. courage16. A. anxiety B.shock C.fear D. appreciation17. A. teacher B. credit C. rate D. grade18. A. won B. put C. found D. taken19. A. gradually B. exactly C. willingly D. seemingly20. A. fact B. film C. ending D. love第二节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。
- 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)。
课时分层作业(四)Section Ⅰ[高考题型练习提能力]Ⅰ.阅读理解AThe United States government has decided that foodfrom cloned cattle，pigs and goats is safe to eat.The Food andDrug Administration also says it found no risk in meat andmilk from cloned animals.The F．D.A.had looked at studies for several years before it announced its decision in a final report this month.The United States Department of Agriculture supported the findings.But it says time is needed to clear the way for marketing meat and milk from clones.The F．D.A.will not require any product to be registered as coming from clones.A producer would need to label(标注) a product“clonefree”．The agency says that could be misunderstood because the food is not different from other food.But activists argue that the F．D.A.based its decision on incomplete research into possible risks.The Center for Food Safety criticized the use of studies supplied by cloning companies.Animal rights activists point out that cloning attempts often fail.They say cloning is cruel and can lead to suffering.Congress(国会) has been trying to get the F．D.A.to do more studies.But the agency noted that experts in New Zealand and the European Union had come to the same findings about the safety of food from clones.Japan and South Korea say they want to study it further before taking action.Products from cloning may not be widely used for several years.Clones cost much，which is why they are not widely used for feeding.The Agriculture Department says few clones will ever become food.Their traditionally raised animals would enter the food supply instead.【语篇解读】本文讲述了美国食品药品监督管理局在宣布一些克隆动物可以作为食品后引发的争论。
1．What is the best title for this passage?A．Is Food from Cloned Animals Safe?B．A New Clone PolicyC．A Big Danger—Cloned FoodD．Cloned Products—A Terrible ChoiceA[主旨大意题。
全文是人们对于克隆动物作为食物这个话题的争论。
]2．All the following are sure of the safety of cloned products EXCEPT ________.A．New Zealand B．JapanC．the USA D．the European UnionB[细节理解题。
根据第五段第二、三两句可知美国、新西兰、欧盟有同样的发现，而日本需要进一步的研究。
]3．Why are products from cloning not widely used for feeding?A．Because cloning attempts often fail.B．Because they are not safe to eat.C．Because cloning is cruel.D．Because they are expensive.D[推理判断题。
根据最后一段提到“Products from cloning may not be widely used for several years.Clones cost much，which is why they are not widely used for feeding.”可知原因是克隆产品太过昂贵。
]4．Where can you probably see the passage?A．In a novel.B．In a newspaper.C．In a travel leaflet.D．In a notice on the wall.B[推理判断题。
本文关于美国食品药品监督管理局在宣布一些克隆动物可以作为食品后引发的争论，时效性较强，故出现在报纸上。
]BAuthors Kyle Kurpinski and Terry D．Johnson pretty much have me convinced that human cloning is quite possible and is a future certainty.Kurpinski and Johnson are both bioengineering experts；unlike similar scientists you have seen in the movies，they both have a sense of humor.What surprises me is that Kurpinski and Johnson are able to take something as complicated as DNA and make it understandable.The book Ho w to Defeat Your O w n Clone teaches us what is now known as DNAencoded(编码)，how that happens，and why people with similar DNA don't lookor act the same.The book not only helps us get a basic understanding of what DNA and its purpose are，but also explains cloning and stem cell(干细胞)research.It occurs to me that a lot of people who are against stem cell research don't know what they are protesting about.The authors provide a history of cloning，as well as information about stem cells.The real fun starts when the authors attack various myths about cloning. Obviously，too many people have been watching too many bad movies and television programs.Remember they're just fictional stories.If，somehow，scientists manage to clone you，twenty years from now your clone isn't going to kill you.Among the myths explored and exploded are that a clone will know everything you know and will act as you do，that heads which are cut off can be kept alive，and that a clone has no belly button(肚脐)．Many of the myths are ridiculous but many people believe them.Kurpinski and Johnson also detail some bioimprovements “that really work”．You see，genes can be controlled to help you sleep better and become smarter，healthier，and taller.Well...not exactly you，but future generations.If you do wind up in a battle with your own clone，who will be considerably younger than you，remember that it is not you and that it doesn't know what you know.【语篇解读】本文介绍了一本关于克隆知识的书。