1、Unit 20New Frontiers1biotechnology n. 生物科技2transplant n& vt. 移植3technological adj. 技术的4potential adj. 潜在的5innovation n. 创新；改革6digital adj. 数字的；数码的7artificial adj. 人工的8intelligence n. 智能9hightech adj. 高技术的；高科技的10device n. 装置；设备11appliance n. 器具；器械12gene n. 基因13beneficial adj. 有利的；有益的14advantage n. 优点
2、；优势15disadvantage n. 缺点；劣势16advanced adj. 先进的1contrast with与形成对照2by this means/in this way用这种方式3side effects副作用4test out试验5show clear evidence of清楚表明6account for是的原因；解释；占据7look back回顾8of all time有史以来9as for至于；关于10on the increase/rise正在上升/增加1There is no doubt that we benefit a lot from the scientific
3、 advancements in many different ways.毫无疑问，我们在许多不同的方面受益于科学的进步。2Scientists are still uncertain/not sure how genes influence aging.科学家们仍然不清楚基因怎么影响衰老。3Science and technology plays an important role in our socialist construction.科技在我们的社会主义建设中起重要作用。1The day will come in time when intelligent robots will t
4、ake_the_place_of machine operators to do dangerous work.智能机器人会取代机器操作工人从事危险工作的这一天迟早会到来。2We need more money if we are to make_any_further_advances_in this area of science.要想在这一科学领域取得进一步的发展，我们需要更多的资金。3He was one_of_the_best_professors_Ive_ever_had,_and he really cared about his students and their work.
5、他是我遇到过的最好的教授之一，他对他的学生们和他们的学习非常关心。 教材单词写准并记牢高考与教材.重点单词1latter n. 后者2.permit vt. 许可3shortly adv. 不久；很快 4.conflict n. 争执；冲突5electronic adj. 电子的 6.permanent adj. 长久的；永久的7present v. 主持；呈现 8.original adj. 起初的；最早的9correspond v. 通信 10.exit n. 出口11cure vt. 治愈 12.barrier n. 障碍；屏障.拓展单词1origin n. 起源；出身original
6、adj. 起初的；最早的originally adv. 最初，起初；本来2wear v. 穿戴worn adj. 磨损的3instruct vt. 指示；教导instructor n. 指导者；教练instruction n. 指令；说明4technique n. 技术；技巧；技能technical adj. 技术上的5assist vt. 帮助；协助assistant n. 助手；助理assistance n. 帮助；协助6create v. 创造creator n. 创造者creation n. 创造7starve vi. 饥饿；挨饿starvation n. 饥饿8equal adj.
7、平等的equally adv. 平等地equality n. 平等9assess vt. 评估；评价assessment n. 评估；评价10donate vt. 捐赠；赠送donation n. 捐赠；赠送11connect v. 连接disconnect v. 使不连接connection n. 连接12operate v. 运转operational adj. 工作着的operation n. 运转.阅读单词1ripe adj. 成熟的2.press v. 按；压3handy adj. 方便使用的 4.invest v. 投资5outspoken adj. 直言的；坦率的 6.outco
8、me n. 后果；结果7welfare n. 福利 8.ancestor n. 祖先；祖宗9initial adj. 最初的；开始的 10.update vt. 更新11technical adj. 技术上的 12.recreation n. 消遣、娱乐13autonomous adj. 自主的；自治的1.(2019北京卷)She donates 10% of Ailic Candys profits to Big Smiles.2(2019北京卷)With her dads permission (permit), she spent the next two years researchi
9、ng online and conducting trials to get a recipe that was both tasty and toothfriendly.3(2018北京卷)The California Department of Motor Vehicles began giving permits (permit) in April for companies to test truly selfdriving cars on public roads.4(2018江苏卷)In 2005, when the Bishop Arts Theatre was_donated
10、(donate) to our town, the location was considered a poor area of town.5(2018北京卷)Shortly (short) after crossing the start line, my shoe laces (鞋带) became untied.6(2017北京卷)It is a logical consequence of the simple fact that the machine cannot achieve its original (origin) purpose if it is dead. 教材短语写准
11、并记牢高考与教材1.give_away 泄露(秘密)；赠送；分发2carry_out 开展；执行；实现；完成3be_dedicated_to 致力于；献身于4make_up_for 弥补5in_advance 提前，预先6take_over 接收，接管7due_to 由于；因为8click_into 点击进入9drop_off 下降；入睡10not_to_mention 更不用说11figure_out 想出；理解；计算出12get_across 使理解；把讲清楚13rather_than 而不是14in_conclusion 总之15in_addition 另外16turn_to 转向；朝向
12、1.(2019浙江卷)On the edge of the jacket, there is a piece of cloth that/which gives off light in the dark.2(2019江苏卷)Naomi managed to figure out 16 of Steves favorite, and most personal songs.3(2018全国卷)We chatted about everything and then Ben turned to me. “I just want to say thank you，” he said. “You s
13、aved my life！”4(2018全国卷)Which tour do you need to book in advance？ 教材句式写准并记牢高考与教材1.by将来时间作时间状语By_the_year_2015,_the clothing industry will_have_produced new types of material that will remain stainless no matter what you spill on them.到2015年，服装业将生产出各种新型布料，无论你将什么东西洒在上面都不会留下污迹。2makeit (形式宾语)宾语补足语By th
14、e year 2030, development in biochemistry and medical science will have made_it_theoretically_possible for us to_live for at least 150 years.到2030年，生物化学和医学的发展将能够在理论上使人类寿命延长到至少150岁。3倍数比较级than结构By the middle of the century, computers that are millions_of_times_smarter_than_us will have been developed.在
15、本世纪中叶，比我们聪明数百万倍的电脑将被研制出来。4“will be动词ing形式”结构表示将来进行时We will_be_linking_our_brains_to_these_computers and a huge database.我们将把我们的大脑与这些电脑还有一个巨大的数据库连接起来。5when作并列连词用于句式：be doing.when.In the summer of 1905, this outspoken young man was_rocking his oneyearold baby when he was suddenly inspired.1905年夏天，这位率真
16、的年轻人正摇晃他一岁的婴儿，这时他突然有了灵感。6without表示虚拟条件Without the breakthroughs of these pioneers in science and technology, whether lucky or planned, the world as we know it today would_have_been_a_completely_different_place.没有这些先驱所做出的科技上的突破，无论是好运带来的还是按计划取得的，我们今天的世界将完全是另一个样子。7get动词的过去分词表被动I think there will be an
17、invention that will help prevent drivers from getting_stuck in traffic jams.我想将会有一种有助于防止司机困于交通阻塞的发明。1.(2019江苏卷)They are trying to make sure that 5G terminals will_have_been_installed (将已经安装) by 2022 for the Beijing Winter Olympics.2(2018江苏卷)It enables smallscale farmers to harvest 175 pounds of gree
18、n vegetables per hour, making_it_possible (使其成为可能) for the little guys to compete with large farms of California.1“通信”用语集锦letter n. 信件email n. 电子邮件WeChat n. 微信correspond vi. 通信receive v. 收到(来信)reply n. 回信communication n. 通信hear from 收到的来信write to 给写信2“互联网”家族download vt. 下载network n. 网络password n. 密码
19、database n. 数据库；资料库surf vi.& vt. 浏览Internet n. 因特网upload vt. 上传3“时间”相关词一览permanent adj. 永久的，长久的temporary adj. 暂时的，临时的instant n. 瞬间，片刻 adj. 紧迫的；立即的interval n. 间隔，间歇punctual adj. 守时的4与“电”有关的词electricity n. 电；电流electric adj. 电的；电动的electrical adj. 有关电的electronic adj. 电子的wireless n. 无线电报5聚焦后缀ous形容词glorio
20、us 光荣的dangerous 危险的mountainous 多山的humorous 幽默的continuous 连续的poisonous 有毒的courageous 勇敢的6“byn.”组成的短语by mistake 错误地by accident 偶然地by turns 轮流by chance 偶然地by force 凭借武力；强迫高频词汇精讲1assist vt.帮助；协助Id like to invite you to join us in assisting the elderly people there.我想邀请你加入我们去帮助那里的老人。(1)帮助某人做某事(2)assistan
21、ce n. 帮助with the assistance of 在帮助下come to ones assistance 帮助某人(3)assistant adj. 辅助的 n. 助手；助理(1)单句语法填空She often assists my brother with English, which helps him improve his English greatly.By no means is punishment a wise choice to assist them in growing up mentally and physically.With the assistanc
22、e (assist) of my cousin we paddled across the river in the dark to participate in a private meeting.Assisted (assist) by an expert in the field, we soon found a solution to the problem.Professor Smith, along with his five assistants (assist), is working on the project day and night to meet the deadl
23、ine.(2)完成句子Nobody is more concerned about us than our parents, who are willing to come_to_our_assistance whenever we are in trouble.没有人比我们的父母更关心我们，无论何时我们有困难他们总会乐于帮助我们。2latter n. 后者 adj. (两者中)后者的In the 18th and 19th centuries, especially the latter, the most common theme in science fiction novels was
24、 the future.在18和19世纪，特别是后者，科幻小说最常见的主题是未来。the latter 两者中的后者the former.，the latter. 前者，后者名师指南：“latter”家庭大聚会(1)表示“顺序”：(2)表示“时间”：用late/later/latest/lately/latter填空I met her again three years later.A British car company was about to sell its latest type of car in Germany.One can travel there by ship or p
25、lane but most people choose the latter.I havent heard any news from my son lately.The train was 10 minutes late.3conflict n. 争执；冲突 vi. 冲突；争执；抵触There will therefore no longer be any conflict and people will be able to live together in peace and equality.所以将不会再有任何冲突，人们将能够和平且平等地生活在一起。(1)come into confl
26、ict with 与争执/冲突in conflict 处于矛盾中in conflict with 与冲突(2)conflict with 与抵触/冲突完成句子She had often come_into_conflict_with/conflicted_with her workmates.她经常与同事们发生争执。She found herself in_conflict_with her parents over her future career.她发现自己在未来择业问题上与父母存在着分歧。4in advance 提前；预先We sent the questions to her pro
27、grammers in advance.我们提前把问题送到她的编程人员那里。(1)in advance of 在之前，超过on the advance(物价)在上涨advance on/towards/upon. 朝前进(2)advanced adj. 先进的；高等的；晚期的名师指南：in order顺序正确；状况良好in return (for) 作为回报/交换in turn 轮流地in need 缺(食物或钱等)(1)单句语法填空Having shown you around our school, we will introduce our most advanced (advance)
28、 science lab to you.Reservations in advance are necessary in most hotels, especially in large cities.The mob advanced on/upon/towards us, shouting angrily.(2)完成句子To catch the early flight, we ordered a taxi in_advance and got up very early.为了赶上早班飞机，我们提前订了出租车并且起得很早。You should keep the files in_order
29、before the manager comes.你应该在经理到之前，把文件都归放整齐。She gave us food and clothing and asked for nothing in_return.她给了我们食物和衣服，但没有要求任何回报。5take over 接收，接管，接任His only reason for investing in the company was to take it over.他在公司里投资的唯一理由就是接管它。take in 吸收，接纳；理解，领会；欺骗take off 脱去(衣服等)；(飞机等)起飞；成功take on 呈现；雇用；承担take o
30、ver 接管take up 拿起；着手处理；占据(时间、空间等)用take短语的适当形式填空When Mr Green retired, his son took_over the business from him.It is true that the college will take_in more new students this year.Internet shopping will really take_off when people make sure that it is safe.After studying in a medical college for five
31、years, Jane took_up her job as a doctor in the countryside.In the past few years, the village has taken_on a new look.6rescue n. & vt.营救；救援Dave also goes outside the ship to rescue Frank, and HAL refuses to let him back in.戴维也到轮船外面去营救弗兰克，而HAL不让他再进来。(1)rescue sb./sth. from (doing) sth./sb.save sb./st
32、h.from (doing) sth./sb.从救出某物/某人(2)come/go to sb.s rescue 营救某人the rescue team 救援队(1)单句语法填空Helicopters rescued nearly 20 people from the roof of the burning building.We were about to close down the business, but the bank came to our (we) rescue with a huge loan.(2)完成句子Whenever there is a disaster or a
33、n accident, the_rescue_team_will_come_to_peoples_rescue right away.每当有灾难或事故时，救援队就会立刻来救人。7dilemma n. 困境；左右为难Faced with the dilemma, he decided to carry on.面临着进退两难的困境，他决定顽强地坚持下去。(be) in a dilemma 处于进退两难的境地face a dilemma 面临两难的困境get out of a dilemma走出困境完成句子Im in_a_dilemma as to whether to accept or refu
34、se his invitation.我正左右为难，不知是接受还是拒绝他的邀请。After five years hard work, they finally got_out_of_the_dilemma.经过五年的艰苦工作，他们终于走出了困境。8donate vt.捐赠，赠送Medical advances ranged from discovering the causes of diseases under microscopes to surgical procedures replacing diseased organs with donated ones.医学的进步包括从显微镜下
35、发现疾病的起因到用捐赠的器官替代病变器官这样的外科手术。(1)donate sth. to sb.向某人捐献某物donate blood 献血(2)donation n捐赠；捐赠物；捐款give/make/present a donation to. 向捐赠(3)donor n. 捐赠者；赠送者(1)单句语法填空Customers are encouraged to donate money to those less fortunate.All donated (donate) blood is tested for HIV and other infections.We want to m
36、ake a donation (donate) to the Hope Project, so we are organizing a charity show.(2)完成句子Volunteers came with carloads of donated_clothing_and_toys.志愿者们带来了整车的捐赠的衣服和玩具。Luckily, many people and organizations donate_a_lot_of_money_to_help_them receive college education smoothly.幸运的是，许多人和组织捐了大笔钱帮助他们顺利地接受
37、大学教育。9correspond vi. 与通信；符合Have you been corresponding with him since you graduated from the university?自从大学毕业后，你一直和他通信吗？(1)correspond with sb.和某人通信correspond to/with sth.与某物相一致(2)correspondence n相符，一致；信件，函件；通信联系hold/keep up correspondence with sb.与某人(保持)通信联系in correspondence with.与一致；与有通信联系完成句子She
38、still corresponds_with American friends she met nine years ago.她仍与9年前结识的美国朋友们通信。We have been in_correspondence_with each other for months.我们保持通信已经好几个月了。10meanwhile adv.同时 n期间The doctor will see you again next week. Meanwhile, you must rest as much as possible.医生下周还会给你看病。在此期间，你一定要尽可能多休息。meanwhilemean
39、time 同时in the meanwhile/meantime 在此期间完成句子The next programme will begin in five minutes; meanwhile/meantime,_lets listen to some music.下一个节目五分钟后开始，在此期间让我们听点音乐吧。The train wont leave in an hour. In_the_meanwhile/meantime,_ we can have lunch.火车在一小时内不会开走，在这期间我们可以吃午餐。11cure vt.治愈 n药物，疗法；解决方法；治疗During the
40、Second World War, when Flemings discovery was first helping to cure people, the US Navy was looking for ways of improving the accuracy of their missiles.第二次世界大战期间，青霉素第一次被使用，这时美国海军正在致力于寻找提高导弹命中率的方法。cure sb. of sth. 治好某人的病；矫正某人的不良行为a cure for sth.疾病的治疗方法；问题的解决办法(1)单句语法填空The destruction of such species
41、 could prevent researchers from finding cures for certain diseases.The authors mother told him to borrow a book in order to help cure him of his reading problem.TB is a serious illness, but it can be_cured (cure)(2)完成句子The fresh air and exercise cured_him_of his headache.呼吸新鲜的空气和锻炼治好了他的头疼病。12.permit
42、 vt. & vi.允许；准许 n许可；准许You are not permitted to work if you are on a student visa.如果你持有学生签证，你就不被允许工作。(1)permit sb. to do sth.允许某人做某事permit doing sth.允许做某事time/weather permitting 如果时间/天气允许(2)permission n容许；允许ask for permission 请求允许without permission 未经允许名师指南：动词permit的常见用法：permit doing sth./sb. to do s
43、th.。注意下列与其用法类似的动词：allow doing sth./sb. to do sth.允许(某人)做某事forbid doing sth./sb. to do sth.禁止(某人)做某事advise doing sth./sb. to do sth.建议(某人)做某事encourage doing sth./sb. to do sth.鼓励(某人)做某事(1)单句语法填空Passengers are permitted to_carry (carry) only one piece of hand luggage onto the plane.The new law rules d
44、o not permit smoking (smoke) in public places.Time permitting (permit), I expect to have more spare time to spend with my friends so that we can have a better relationship.No reference books are to be taken out of the reading room without permission (permit)(2)完成句子Weather_permitting,_we can go out f
45、or a picnic with your mothers permission.天气允许的话，得到你妈妈的同意，我们可以一起去野餐。13declare vt.宣布；声明；表明；宣称The United States declared its independence from Britain in 1776.美国于1776年正式宣布脱离英国而独立。(1)declare.to be.宣布为declare war on. 向宣战declare for/against 表示赞成/反对declare that. 宣布(2)declaration n. 宣言词义辨析declare指正式地、明确地向公众
46、“宣布；宣告；声明”，侧重“当众”发表，多用于宣战、议和、宣判等announce指正式地“公开；发表；宣布”，侧重“预告”人们所关心或感兴趣的事情，尤指新闻之类的消息(1)单句语法填空Germany declared war on France on August 1, 1914.When they asked him for his opinion, he declared strongly against the policy because it offended his interests.The use of certain chemicals has now been_declar
47、ed (declare) illegal.(2)完成句子We have time and time again declared_that we will never be the first to use nuclear weapons.我们一再声明我们决不第一个使用核武器。重点词汇点拨1drop off 下降；打盹；让某人下车drop away 逐渐下降，减少drop in 拜访drop behind/back 落后，掉队 drop sb. a line 给某人写信Having the address, he decided to drop_in on the old scientist.
48、知道了地址，他决定拜访这位老科学家。After this, interest faded and the number of manned flights dropped_off.从这以后，人们的兴趣开始减退，载人航行的数量也下降了。He would drop_me_a_line now and then while in the army.在部队时他时不时地给我写封信。2press vt. 按；压；逼迫 n. 按；压；印刷；新闻(1)press.against 使贴着press down 把按下去press sth. on sb. 把(想法等)强加于press sb. for sth./to
49、 do sth. 催促某人(做)某事(2)pressure n. 压力；压迫put pressure on 给施压under pressure/stress 面临压力；受到压力With one problem pressing (press) on his mind, he felt stressed.You need to be able to work accurately under pressure (press)典型句式精析1By the year 2015, the clothing industry will have produced new types of material
50、 that will remain stainless no matter what you spill on them.到2015年，服装业将生产出各种新型布料，无论你将什么东西洒在上面都不会留下污迹。该句中By the year 2015为“by将来的时间”作状语，句子(主句)部分谓语动词通常采用将来完成时。by表示将来的时间点，句子谓语动词常用将来完成时，表示将来某一时间已经完成的动作。by表示过去的时间点，句子谓语动词常用过去完成时，表示到过去某一时间已经完成的动作。单句语法填空By the end of next year, I will_have_been (be) a docto
51、r for twenty years.By the time he got here, I had_finished (finish) all the work.By now, five villagers have_been_attacked (attack) by the hairy creature.2Without the breakthroughs of these pioneers in science and technology, whether lucky or planned, the world as we know it today would have been a
52、completely different place.没有这些先驱所做出的科技上的突破，无论是好运带来的还是按计划取得的，我们今天的世界将完全是另一个样子。without 在本句中表示一个假设的条件，后面的主句中用“wouldhave done”表示对过去的虚拟。当虚拟语气表示与现在事实相反时，从句的谓语动词用“过去式(be的过去式用were)”，主句的谓语动词用“would/could/should动词原形”。像这样表假设条件的还有介词but for和连词or，otherwise。它们引导的句子在英语中称为含蓄条件句。完成句子We_wouldnt_have_got_home_so_early
53、 without her lift.要不是搭她的车，我们就不会这么早到家。But_for_your_help,_we couldnt have succeeded.要不是你帮忙，我们就不会成功。.单词拼写1As we all know, many famous film stars have donated (捐献) many things to Jinggu, Yunnan Province.2The wartime temporaries will be replaced by permanent (永久的) homes.3Experts were invited to the site,
54、 assessing (评估) how well the system works.4One of businesses of the socialists is to study the social phenomenon (现象)5He left the meeting room by declaring (宣布) that his efforts would be continued.6We have been friends and colleagues (同事) for more than 20 years.7The school is close to our house, so
55、it is quite handy (方便使用的) for the children.8She called and called but no one came to her assistance (援助)9Many soldiers were sent to the area hit by the earthquake to rescue (营救) the people there.10To complete the task, we need to download (下载) some information from the Internet.单句语法填空(一)单元知识点1You ne
56、ed qualifications to be a swimming instructor (instruct)2They looked for ways of improving the accuracy (accurate) of their missiles.3We correspond with each other easily with the introduction (introduce) of mobile phones.4In the process of modern urban development, we often find ourselves in a dile
57、mma.5The workers are trying to apply modern techniques (technical) to this traditional craft.6Hattie Elizabeth Alexander spent all her time in the laboratory developing cures for illnesses.7The ancient Chinese are associated (associate) with many important inventions.8Watch out for poisonous (poison
58、) snakes while hiking in the valley.9He raised his hands in defence (defend) of his face.10The central aim of this government is social equality (equal)11A lot of people died of starvation (starve) in those days.12Humanity has made great progress in space exploration (explore) and medicine.13Whether
59、 you broke the window by accident or on purpose, you would have to pay for it.14Without more training or advanced (advance) technical skills, they will lose their jobs.15The professor is a specialist (special) of studying a criminals psychology.(二)单元语法16He will write to you as soon as he arrives (ar
60、rive) there.17The English spoken in the United States is only slightly different from that spoken in England.18Twothirds believe more families will_follow (follow) the example of Obamas family.19Several others checked the instructions and made something according to one of the model plans provided.2
61、0However, it is also hard to keep a code book secret for long.单句改错1I wondered who had taken the umbrella without permit.permit改为permission2He is a teacher of rich experience, from him we have learned a lot over the years.him改为whom3Short after they arrived at the small town, a war broke out.Short改为Sh
62、ortly4There is some doubt that he will persuade the old man to go with us.that改为whether5Many support the former alternative, but personally I favour the later.later改为latter.选词填空take over， drop off， make up for， not to mention， figure out， get across， carry out， be dedicated to， in advance， correspon
63、d with1Your papers wouldnt get_across if you used too many technical terms in it.2It will be easier to work out a plan than to carry it out.3I have not worked this term, but I will make_up_for it next term.4China will continue to be_dedicated_to international cooperation in this area.5Jack has been
64、wrestling with these technical problems since he took_over the department last year.6I am convinced that he is far cleverer than most men, not_to_mention my wife.7He carefully figured_out what time the first train would pass by.8The number of students in this course dropped_off after the first test
65、because it was too hard to learn.9These goods dont correspond_with my order form.10I had asked everyone to raise questions in_advance of the meeting.完成句子1Of course, we must work hard. Meanwhile/In_the_meantime,_we should learn to take good care of ourselves.当然，我们必须努力工作。但与此同时，我们也应该学会照顾好自己。2I was_read
66、ing_a_book_attentively_when an old friend came to see me.我正在全神贯注地读一本书，这时一位老友来访。3You might/should_have_given them help, even though you were very busy.即使你很忙，你也本该给予他们帮助的。4You may find_it_difficult_to_communicate_with the local people, because many of them have a strong accent.你会发现与当地人交流很困难，因为很多人有很重的口音
67、。5There_is_no_doubt_that health is more important than wealth.毫无疑问，健康比财富重要。6Fashion is an essential part of our life which doesnt conflict_with our studies.时尚是我们生活中的重要组成部分，它与我们的学习并不冲突。7No_matter_what_you_do,_being sincere is the most important.无论你做什么，诚实是最重要的。8By_the_time the bell rings, we will_have
68、_finished the experiment in the lab.到铃响时，我们就会已经在实验室里完成这个实验了。.课文语法填空People around the world have always been trying to find out more about the future over the centuries. Some people read fantasy stories _1_ others write about the future themselves. For them, _2_ (think) about the future is just for f
69、un. There are also some people _3_ plan the future of the world for a living. They _4_ (call) futurologists. Here are some of their _5_ (predict). Computers will become _6_ (handy); new types of material will have been produced by the clothing industry and _7_ you spill on them, they will remain sta
70、inless; there will be enough food for everyone so that no one _8_ (die) of starvation; development in science will have made _9_ theoretically possible for us to live for at least 150 years; we will be linking our brains to the computers; we will have discovered other places _10_ (suit) for living.1
71、while2.thinking3.who4.are_called5predictions6.handier7.whatever8.will_die9it10.suitable.话题写作假定你是李华，你班最近就“To clone or not to clone”展开了激烈地辩论。现请你给一家英文报社的编辑写一封信，告诉他你们班同学对克隆的不同观点，并表达自己的看法。注意：1.词数100左右；2可以适当增加细节，以使行文连贯。Dear_editor，Recently_in_my_class,_there_is_a_heated_debate_about_“To_clone_or_not_to_cl
72、one”Some_people_believe_cloning_is_of_great_benefit_to_human_beings,_which_can_be_used_to_cure_some_serious_diseases._Besides,_it_can_also_help_the_wildlife_in_danger_so_that_we_can_have_more_and_more_wildlife_in_the_world.However,_others_are_against_cloning_because_they_think_that_many_social_probl
73、ems_may_arise_if_the_use_of_this_technology_gets_out_of_control._What_they_worry_is_that_we_may_produce_a_superhuman_race_that_could_replace_us.In_my_opinion,_since_cloning_is_a_scientific_breakthrough,_I_think_that_we_should_do_our_best_to_draw_upon_it_well_to_help_human_beings.Yours_sincerely，Li Hua学习至此，请完成课时作业3940
