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单单词词名词名词twin, breakthrough, procedure, carrier, correction, feather, objection, medium, constitution, opera, chorus, loaf, flour, assumption, turkey, regulation, drawback, decoration, claw 动词动词differ, undertake, cast, object, obtain, attain, forbid, accumulate, owe, retire, bother, strike, resist, adore, hatch 形容形容词词exact, initial, commercial, straightforward, arbitrary, moral, conservative, compulsory, vain, unable, reasonable 副词副词altogether, shortly, merely短语短语 词词汇汇表表pay off, cast down, in favour of, side road, (be) bound to (do) ., strike . into ones heart, from time to time, bring back to life, in vain, in good / poor condition 课课文文中中all the time, medical research on, be appropriate to, have a great impact on, make up ones mind, look back on, a matter of time, film maker, pass on句式句式. be here to stay.例句：例句：Cloning has always been with us and is here to stay.语法语法复习同位语复习同位语1. _ vt. 扔扔; 投投; 掷掷2. _ vt. 打扰打扰 vi. 操心操心 n. 烦扰烦扰3. _ vt. (forbade, forbad; forbidden) 禁止禁止; 不准不准 4. _ vt. 崇拜崇拜; 爱慕爱慕; 喜爱喜爱5. _ vi. 退休退休; 离开离开6. _ adj. 不能的不能的, 不会的不会的7. _ vt. & vi. 孵出孵出; 孵卵孵卵; 孵化孵化 cast botherforbidadoreretireunablehatch( (一一) )基本单词基本单词8. _ adj. 道德道德(上上)的的, 伦理的伦理的9. _ n. 程序程序; 步骤步骤; 手续手续10. _ n. 装饰装饰11. _ adv. 仅仅; 只只; 不过不过12. _ n. 突破突破13. _ n. 规则规则; 规章规章; 法规法规14. _ n. 假定假定; 设想设想15. _ vi. 获得获得; 赢得赢得16. _ vt. & vi. 积累积累; 聚积聚积17. _ vt. (undertook; undertaken) 着手着手; 从事从事; 承担承担moralproceduredecorationmerelybreakthroughregulationassumption obtainaccumulateundertake18. _ n. 双胞胎之一双胞胎之一; 孪生儿之一孪生儿之一 adj. 成对的成对的; 成双的成双的19. _ adj. 简单的简单的; 直接的直接的; 坦坦 率的率的20. _ adv. 总共总共; 完全地完全地21. _ adj. 任意的任意的22. _ n. (pl media) 媒介媒介; 手段手段; 工工 具具23. _vt. 获得获得; 到达（水平、年龄、到达（水平、年龄、 状况等）状况等）24. _ adj. 保守的保守的; 守旧的守旧的twinstraightforwardaltogetherarbitrarymediumattainconservative25. _ n. 宪法宪法; 章程章程26. _ adj. 必须做的必须做的; 义务的义务的; 强强 迫的迫的; 强制的强制的27. _ vt. 欠欠(账、钱、人情等账、钱、人情等); 归功于归功于28. _ adv. 立刻立刻; 不久不久29. _ vt. & vi. (struck, struck) 打打; 撞击撞击; 罢工罢工 n. 罢工罢工30. _ adj. 虚荣的虚荣的; 自负的自负的; 徒劳的徒劳的constitutioncompulsoryoweshortlystrikevain1. _ vi. 相异相异; 不同不同_ adj. 不同的不同的 2. _ adj. 精确的精确的; 准确的准确的_ adv. 准确地准确地3. _ adj. 商业的商业的; 贸易的贸易的_ n. 贸易贸易4. _ n. 改正改正; 纠正纠正; 修正修正_ adj. 正确的正确的; 得体的得体的 v. 改正改正; 纠正纠正 differdifferentexactexactlycommercialcommercecorrectioncorrect( (二二) )派生单词派生单词5. _ vi. 反对反对; 不赞成不赞成_ n. 不赞成不赞成; 反对反对; 异议异议 6. _ adj. 最初的最初的; 开始的开始的_ adv. 最初最初7. _ vt. 抵抗抵抗; 对抗对抗_ n. 抵抗抵抗; 抵触抵触; 反对反对; 阻力阻力 8. _ adj. 合情理的合情理的; 讲道理的讲道理的; 公公 道的道的_ (反义反义) adj. 不合理的不合理的; 过度过度 的的; 不切实际的不切实际的 objectobjectioninitialinitiallyresistresistancereasonableunreasonable1. _ 得到好结果得到好结果; 取得成功取得成功; 偿偿 清清 2. _ 沮丧沮丧; 不愉快不愉快3. _ 大众传播媒体大众传播媒体(如电视、报如电视、报 纸等纸等)4. _ 赞成赞成; 支持支持5. _ 旁路旁路; 支线支线; 岔道岔道6. _ 一定或注定一定或注定(做做)pay offcast downthe mediain favour ofside road(be) bound to (do)( (三三) )短语短语7. _ 使使刻骨铭心刻骨铭心8. _ 不时不时; 偶尔偶尔9. _ 使复生使复生; 使复活使复活10. _ 白费力气白费力气; 枉费心机枉费心机11. _ 状况很好状况很好(坏坏); 情况很好情况很好(坏坏)strike into ones heartfrom time to timebring back to lifein vainin good/poor conditionThe initial requirement is that you need perfect DNA which gives information for how cells are to grow. 结构分析：虽然句子不长结构分析：虽然句子不长, 但却从句套从但却从句套从句句, 共有三个从句。共有三个从句。( (四四) )句式句式1. undertake vt. (undertook; undertaken) 着手着手; 从事从事; 承担承担 课文原句课文原句: It is a difficult task to undertake. 这是一项很难完成的任务。这是一项很难完成的任务。 【归纳【归纳】 undertake sth. 承担某事承担某事 undertake to do sth. 许诺做某事许诺做某事; 同意做某事同意做某事 undertake that 保证保证( (一一) ) 单词单词【运用【运用】 He _ _ the money back in six months. 他保证他保证6个月内还钱。个月内还钱。undertook to pay/undertook that hewould pay 2. object vi. 反对反对; 不赞成不赞成(常接介词常接介词to) objection n. 反对反对, 异议异议 课文原句课文原句: On the other hand, Dollys appearance raised a storm of objections and had a great impact on the media and public imagination. 另一方面另一方面, 多莉羊的出现引起了一阵强烈多莉羊的出现引起了一阵强烈的反对的反对, 对媒体和公众的想象力也产生了对媒体和公众的想象力也产生了极大的影响。极大的影响。【归纳【归纳】 object to sb. /sth. = object to doing sth./ to sb. doing sth. 不同意不同意; 不赞成不赞成; 反对反对 raise an objection to sth. 对对提出异议提出异议 have/make an objection to (doing) sth. 对对表示反对表示反对 objective adj. 客观的客观的, 就事论事的就事论事的【运用】用【运用】用object的适当形式填空。的适当形式填空。 1) He didnt mean _ to my proposal, but did it. 2) His idea is reasonable and _. to objectobjective3. obtain vt. 获得获得; 赢得赢得 课文原句课文原句: Although at present human egg cells and embryos needed for cloning research are difficult to obtain, 尽管目前供克隆研究的人类卵细胞很难尽管目前供克隆研究的人类卵细胞很难获得获得, 【归纳【归纳】 obtain sth. from. 从从获得获得 obtain sth. through. 通过通过(某种方式或手段某种方式或手段)获得获得 obtain还有还有“买到买到, 借到借到”之意。之意。 e.g. Where can I obtain the dictionary. 我在哪儿能买到这本字典？我在哪儿能买到这本字典？【运用】用适当的介词填空。【运用】用适当的介词填空。 1) Surfing on internet is one of my hobbies; I can obtain much knowledge _ it. 2) All people are driven to pursue happiness in life, but the vehicles _ we obtain happiness are different. fromthrough which4. forbid vt. 禁止禁止; 不准不准 课文原句课文原句: Some began to reform their legal systems and forbade research into human cloning, . 有些政府开始改革法律制度有些政府开始改革法律制度, 明令禁止进明令禁止进行克隆人类的研究行克隆人类的研究, 【点拨【点拨】 forbid后不能直接跟动词不定式作宾语后不能直接跟动词不定式作宾语, 但可但可 直接跟直接跟v.-ing作宾语作宾语, 也可用也可用forbid sb. to do sth.形式。形式。allow/permit/advise/recommend (建议建议)也这样用。也这样用。 e.g. He was forbidden to leave the base as a punishment. 作为惩罚作为惩罚, 他被禁止离开基地。他被禁止离开基地。 The new law forbids smoking in offices. 新法律禁止在办公室内抽烟。新法律禁止在办公室内抽烟。5. owe vt. 欠欠(账、钱、人情等账、钱、人情等); 归功于归功于 课文原句课文原句: You owe the lady an apology. 你欠这位女士一个道歉。你欠这位女士一个道歉。 【归纳【归纳】 owe sb. sth.; owe sth. to sb. 欠欠(债债) owe sb. sth.; owe sth. to sb. /sth. 归因于归因于, 归功于归功于, 起源于起源于 owing to 因为因为, 由于由于【运用】根据汉语意思完成句子。【运用】根据汉语意思完成句子。1) He still _ (欠我欠我80美元美元) for my work.2) _ (因为下雨因为下雨), we couldnt come.3) 多亏有了你我才能活下来。多亏有了你我才能活下来。 I owe _ you that I am still alive.4) 我的成功应该归功于我的老师。我的成功应该归功于我的老师。 I _ my teachers. owes me $80Owing to the rainowe my success toit to6. bother vt./vi./n. 课文原句课文原句: However, the problem that she later developed a serious lung disease bothered scientists. 然而然而, 她不久之后就染上了很严重的肺病她不久之后就染上了很严重的肺病, 这个问题困扰了科学家。这个问题困扰了科学家。【归纳【归纳】 bother作动词作动词 使使烦恼烦恼, 给给造成麻烦。造成麻烦。常用结构：常用结构：bother sb. that .; bother sb. with/about sth.; it bothers sb. to do sth.。如：如： Usually I dont bother my friends with my little affairs. Im not bothered about what he thinks. Does it bother you that your wife earns more money than you? It bothers me to think of her alone in that big house. 花费时间或精力花费时间或精力(做某事做某事), 常用于否定句或疑常用于否定句或疑问句。常用结构：问句。常用结构：bother with/about sth.; bother to do sth.; bother doing sth.。如：如： Its not worth bothering with an umbrella the cars just outside. He doesnt bother much about his appearance. You neednt bother to travel such a long distance. Why bother asking if youre not really interested? 打扰打扰, 搭话烦扰。搭话烦扰。如：如： Sorry to bother you, but theres a call for you on line two. bother作名词作名词, 意为意为“麻烦麻烦, 困难困难; 令人烦恼令人烦恼的人或事的人或事”。如：如：Such is my father who doesnt want to put anyone to any bother.Im sorry to be a bother, but could I have that number again?bother 干扰别人正常工作和生活干扰别人正常工作和生活, 可能是故可能是故意的。意的。disturb 使人失去正常秩序而一时不得安宁使人失去正常秩序而一时不得安宁, 语气比语气比bother弱。弱。trouble 指在心情上失去平衡而感到忧虑、苦指在心情上失去平衡而感到忧虑、苦恼或行动上带来不便恼或行动上带来不便, 也常用于礼貌请求也常用于礼貌请求: May I trouble you for?bother/disturb/trouble【运用】完成下列句子。【运用】完成下列句子。1) 他老是打电话给我他老是打电话给我, 使我厌烦得很。使我厌烦得很。 His phoning me all the time _ _.2) 什么事令你忧虑不安什么事令你忧虑不安经济问题吗？经济问题吗？ Whats _ money problems? 3) 她轻轻地开门她轻轻地开门, 以免惊扰了睡着的孩子。以免惊扰了睡着的孩子。 She opened the door quietly so as not to _ the sleeping child.troubling youa lotdisturbbothers me7. strike vt.& vi. 打打; 撞击撞击; 罢工罢工; 袭击袭击; 报时报时; 划划(火柴火柴) n. 罢工罢工 课文原句课文原句: The popularity of films such as Jurassic Park, in which a scientist clones several kinds of extinct dinosaurs, proves how the idea struck a mixture of fear and excitement into peoples hearts. 在在侏罗纪公园侏罗纪公园这部影片中这部影片中, 有一位科学家有一位科学家克隆了好几种不同的绝种恐龙。类似这样的电克隆了好几种不同的绝种恐龙。类似这样的电影很受欢迎影很受欢迎, 证明了这一想法使人们感到既兴证明了这一想法使人们感到既兴奋又恐惧。奋又恐惧。观察句子观察句子, 写出划线部分的含义。写出划线部分的含义。 The clock has just struck 10. () It struck me that no one was at home. ( ) He struck the table a heavy blow angrily. () The girl struck a match and lit a candle. ( ) She was struck by his kindness. () They have been on strike for several days. () A big earthquake struck the area last week. ()报时报时突然突然想起想起打打, 击击划划(火柴火柴)打动打动罢工罢工袭击袭击【归纳【归纳】 strikewith 用用敲打敲打 strike against 撞到撞到 It strikes sb. that. 某人突然意识到某人突然意识到 be struck by 被被打动打动; 深受感动深受感动 be on strike 在罢工在罢工【运用】根据汉语意思完成句子。【运用】根据汉语意思完成句子。1) He was so angry that he _ his fist. 他气得用拳头砸桌子。他气得用拳头砸桌子。2) The visitors _ the beauty of the tourist area. 游客被旅游区的美景迷住了。游客被旅游区的美景迷住了。3) _ that we could use a computer to do the job. 突然想到我们可以用电脑去做这项工作。突然想到我们可以用电脑去做这项工作。were struck bystruck the table withIt suddenly struck me8. vain adj. 虚荣的虚荣的; 自负的自负的; 徒劳的徒劳的 课文原句课文原句: All efforts of cloning an animal will be in vain if there is not enough diversity in the group to overcome illness. 如果某个动物群体没有足够的多样性以战如果某个动物群体没有足够的多样性以战胜疾病胜疾病, 那么克隆这种动物的所有努力都那么克隆这种动物的所有努力都将是无用的。将是无用的。必必会会in advance 提前提前in charge 主管主管in debt 负债负债in order 井然有序井然有序in progress 有进展有进展in return 作为回报作为回报in theory 从理论上从理论上【归纳【归纳】 in vain 白费力气白费力气; 枉费心机枉费心机【运用】根据汉语意思完成句子。【运用】根据汉语意思完成句子。1) She closed her eyes tightly _ to hold back the tears. 她紧闭双眼她紧闭双眼, 却无法忍住眼泪。却无法忍住眼泪。2) 我们所有的努力都付诸东流了。我们所有的努力都付诸东流了。 All our efforts were _.in vainin a vain attempt9. resist v. 课文原句课文原句: The advantage is that 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. 其优点是其优点是, 如果发生了某种新的疾病如果发生了某种新的疾病, 这类这类 动物中的一些可能会死去动物中的一些可能会死去, 而另一些却能存而另一些却能存 活下来活下来, 并且把这种抗疫力传给下一代。并且把这种抗疫力传给下一代。【归纳【归纳】 抵抗抵抗, 回击回击, 反抗。反抗。如：如： She was charged with resisting arrest. The soldiers resisted (the enemy attacks) for two days. 抵制抵制, 阻挡。其后接动词作宾语时阻挡。其后接动词作宾语时, 要用动要用动词词-ing形式。形式。如：如： The bank strongly resisted cutting interest rates. 忍住忍住, 抵挡。其后接动词作宾语时抵挡。其后接动词作宾语时, 要用要用 动词动词-ing形式。形式。如：如： John couldnt resist showing off his new car. 不受不受(某事物某事物)的损害或影响的损害或影响, 抗抗, 耐。耐。如如: A healthy diet should help your body resist infection. We need a kind of glass that resists heat.【拓展【拓展】 resistance n. 抵抗抵抗, 反抗反抗, 电阻电阻, 抵抗力抵抗力 resistant adj. 抵抗的抵抗的, 有抵抗力的有抵抗力的课文原句课文原句:But at last the determination and patience of the scientists paid off in 1996 with a breakthrough the cloning of Dolly the sheep. 但是但是, 科学家的决心和耐心最终得到了回报科学家的决心和耐心最终得到了回报, 这就是这就是1996年具有突破性的克隆年具有突破性的克隆“多莉多莉”的诞生。的诞生。 1. pay off 得到好结果得到好结果; 取得成功取得成功; 偿清偿清 ( (二二) )短短 语语【归纳【归纳】 pay sb. for sth. = pay sth. to sb. for sth. 付钱给某人作为付钱给某人作为的费用的费用 pay for sth. 为某事吃苦头或受惩罚为某事吃苦头或受惩罚; 花钱花钱 买某物买某物 pay back 还钱还钱; 报复报复 pay attention to 注意注意 pay a visit to 访问访问 pay out (为某事为某事)付出大笔款项付出大笔款项【运用】根据汉语意思完成句子。【运用】根据汉语意思完成句子。 Sometimes we have had to _ deadly _ mistakes. 有时候我们不得不为错误付出沉重的代价。有时候我们不得不为错误付出沉重的代价。 He _ by not coming. 他以不来的方式报复了我。他以不来的方式报复了我。 With the help of a lot of people, our plan _ (成功了成功了).pay forpaid me backpaid off2. in favour of 支持支持, 赞成赞成 课文原句课文原句: Is it in favour of cloning or against it？ 它是赞成克隆行为还是反对？它是赞成克隆行为还是反对？ 【拓展【拓展】 与与in favour of 同义或反义的常用短语：同义或反义的常用短语： approve of 赞同赞同, 赞许赞许 be for 赞成赞成, 主张主张 on ones side 在某人一边在某人一边 be against 反对反对 object to 不赞成不赞成, 反对反对必必会会owe sb. a favour 欠某人人情欠某人人情do sb. the favour to do sth.帮某人做某事帮某人做某事in sb.s favour/in favour of sb.对某人有利的对某人有利的do sb. a favourdo a favour for sb.帮某人忙帮某人忙3. in good/poor condition 状况很好状况很好(坏坏); 情况很好情况很好(坏坏) 课文原句课文原句: The dodo became extinct fairly recently so its DNA is still in good condition. 渡渡鸟灭绝时间相当近渡渡鸟灭绝时间相当近, 因此它的因此它的DNA仍然仍然状况良好。状况良好。 【归纳【归纳】 out of condition 健康状况欠佳健康状况欠佳 working/living/studying condition 工作工作/生活生活/学习环境学习环境 on condition (that) 在在条件下条件下; 倘若倘若 on no condition 决不决不; 一点也不一点也不(放在句首放在句首, 句子用部分倒句子用部分倒 装装)【运用【运用】 Travellers are advised not to fly because of _ _ _. 因为天气情况恶劣因为天气情况恶劣, 旅行者们被劝告不旅行者们被劝告不 要乘飞机。要乘飞机。 The employees agreed to speak to us _ _ _ they wouldnt be named. 那几位雇员同意与我们谈谈那几位雇员同意与我们谈谈, 条件是不条件是不 要说出他们的名字。要说出他们的名字。poor weather conditionson condition that( (三三) )句式句式Cloning has always been with us and is here to stay. 克隆一直与我们同在，克隆一直与我们同在， 而今它还要持续下去。而今它还要持续下去。“be here to stay” 是习语是习语, 意思是意思是 “be accepted and used by most people (被普遍接受被普遍接受; 成为风尚成为风尚)”。e.g. It looks as if televised trials are here to stay. 看来电视直播审判已为大多数人所接受。看来电视直播审判已为大多数人所接受。【考例【考例】1. Is it true that Mike refused an offer from Yale University yesterday? Yeah, but I have no idea _ he did it; thats one of his favorite universities. A. when B. why C. that D. how 引导同位语从句引导同位语从句, 对对idea作进一步的解释。由作进一步的解释。由thats one of his favorite universities可知可知, 不不知道他拒绝那所大学的原因。知道他拒绝那所大学的原因。同位语从句点拨同位语从句点拨2. The only way to succeed at the highest level is to have total belief _ you are better than anyone else on the sports field. A. how B. that C. which D. whether 引导同位语从句引导同位语从句, 对对belief作进一步的解释作进一步的解释, 又因从句意义完整且不缺任何成分。又因从句意义完整且不缺任何成分。 3. The notice came around two in the afternoon _ the meeting would be postponed. A. when B. that C. whether D. how 引导同位语从句引导同位语从句, 对对notice作进一步的解释作进一步的解释, 又因从句意义完整且不缺任何成分。又因从句意义完整且不缺任何成分。【拓展【拓展】同位语从句与定语从句的区别：同位语从句与定语从句的区别：1. 同位语从句是名词性的同位语从句是名词性的, 其功能是说明名词其功能是说明名词的内容的内容; 定语从句是形容词性的定语从句是形容词性的, 其功能通其功能通常是修饰先行词常是修饰先行词, 对先行词加以限定对先行词加以限定, 说明说明其性质、特征等。其性质、特征等。2. 引导同位语从句的引导同位语从句的that是连接词是连接词, 在从句中在从句中没有含义、不作成分没有含义、不作成分, 一般不能省略一般不能省略; 引导引导定语从句的定语从句的that是关系代词是关系代词, 可作主语、宾可作主语、宾语或表语语或表语, 作宾语时可省略。如：作宾语时可省略。如： The news that our team has won the match is encouraging. (同位语从句同位语从句) The news (that) we heard on the radio yesterday was true. (定语从句定语从句)【运用】用适当连接词【运用】用适当连接词/关系词完成短文。关系词完成短文。 Working parents often put their kids in day care center. While most parents interviewed say they are satisfied with the day care 1. _ they use, experts have the belief 2. _ only about 12 percent of children receive high quality care. Many parents really have no idea 3. _ good their day care service is. that/whichthathowWhen choosing a day care center, of course parents want to know how much it costs. But there are many other questions 4. _ parents should ask. Parents need to know if the caregiver is loving and responds to the childs needs. Does the caregiver hug the child, talk to the child, play with the child? However, experts make the suggestion 5. _ parents should not put their babies in child care center for the first four months. During this time, it is important for babies to form an attachment to their mothers.that/which that【写作任务【写作任务】 最近有一名美国留学生在你校英文论坛发最近有一名美国留学生在你校英文论坛发帖称，家庭作业不仅占用了他大量的业余时帖称，家庭作业不仅占用了他大量的业余时间，而且毫无必要。请你写一篇英语短文回间，而且毫无必要。请你写一篇英语短文回复他的帖子，列举理由（至少三点）来反驳复他的帖子，列举理由（至少三点）来反驳他的观点。他的观点。 注意：词数注意：词数100左右。左右。如何写观点论证型议论文如何写观点论证型议论文【写作指导【写作指导】 一、审题定调一、审题定调 该习作要求反驳对方该习作要求反驳对方“家庭作业毫无家庭作业毫无必要必要”的观点，是一篇观点论证型议论文。的观点，是一篇观点论证型议论文。因此写作时首先应该根据提示阐明自己的因此写作时首先应该根据提示阐明自己的观点，然后围绕这一观点进行论证，论证观点，然后围绕这一观点进行论证，论证过程要做到层次分明、有理有据。人称以过程要做到层次分明、有理有据。人称以第一人称为主，时态以一般现在时为主。第一人称为主，时态以一般现在时为主。二、谋篇布局二、谋篇布局 就本篇习作而言，我们可以把全文分为就本篇习作而言，我们可以把全文分为三部分：三部分： 第一部分第一部分: 引出话题，阐明观点引出话题，阐明观点(就对方就对方观点提出反对意见观点提出反对意见)； 第二部分第二部分: 分层论述分层论述(家庭作业能够帮助家庭作业能够帮助学生复习和预习、培养学生的自学能力、学生复习和预习、培养学生的自学能力、向老师反馈学生对知识的掌握情况向老师反馈学生对知识的掌握情况); 第三部分第三部分: 总结全文总结全文, 重申态度重申态度(适量合适量合理的家庭作业对学生的学习有促进作用理的家庭作业对学生的学习有促进作用)。三、组织语言三、组织语言就本篇习作而言，每个部分可围绕以下内容组织语就本篇习作而言，每个部分可围绕以下内容组织语言。言。1. 第一部分：引出话题，阐明观点。第一部分：引出话题，阐明观点。普通表达普通表达高级表达高级表达Im sorry to hear that . but I dont agree that .Hearing ., I feelsympathetic towardsyou. However, in myopinion, .You say / think /believe . However, I would say / think / believe .In your opinion, . Asfar as Im concerned .普通表达普通表达高级表达高级表达By doing homework, we can practice what we have learned and prepare for the new lessons.Homework ensures /guarantees review andpreview.Homework helps usdevelop / is good fordeveloping abilities tostudy independently /on our own.Homework is beneficialto the development ofself-study abilities /competence.2. 第二部分：分层论述。第二部分：分层论述。普通表达普通表达高级表达高级表达Homework allows ourteachers to find outwhether we understandthe subject or not / howwell or how badly weare performing.Homework providesfeedback to ourteachers.If we perform badly,our teachers will try tohelp us.If we do a poor job, ourteachers will takemeasures to help us.普通表达普通表达高级表达高级表达Therefore, I think . helps . a lot.All in all, . is Good for .To sum up / In conclusion, .is of great benefit to .According to the above, we can conclude / draw the conclusion that . is beneficial / of great benefit to .3. 第三部分：总结全文，重申态度。第三部分：总结全文，重申态度。【范文展示【范文展示】 普通范文普通范文 Im sorry to hear that your homework takes up too much of your spare time but I dont agree that homework is unnecessary. Firstly, by doing homework, we can practicewhat we have learned and prepare for the new lessons. Secondly, homework helps us develop abilities to study independently. For example, some homework needs investigating, summarizing, analyzing and evaluating. These are all important skills. Thirdly, homework allows our teachers to find out whether we understand the subject or not. If we perform badly, our teachers will try to help us. Therefore, I think proper amounts of homework in proper forms can help us a lot. 高级范文高级范文 Hearing your homework takes up too much of your spare time, I feel sympathetic towards you. However, in my opinion, homework is an essential part of learning process. Firstly, homework ensures review and preview. In addition, homework is beneficial to thedevelopment of self-study abilities. For example,some assignments involve investigating,summarizing, analyzing and evaluating, whichare all important skills. Finally, homework provides feedback to our teachers. If we do a poor job, our teachers will take measures to help us. In conclusion, proper amounts of homework in proper forms are of great benefit to us.1. I just need to make a few _ (correct), and then we can send it to the printer.2. We may ask her a few questions to make sure we know _ (exact) what she wants.3. You could press the flowers that were used at the event and then use them as the _ (decorate).I. 用括号内单词的正确形式填空。用括号内单词的正确形式填空。exactly correctionsdecoration4. Im sure there is a perfectly _ (reason) explanation for his absence.5. The only _ (object) I have is that it may cost more than expected.6. Your argument is based on a completely false _ (assume).objection assumptionreasonableII. 把下列句子改写为含同位语把下列句子改写为含同位语(从句从句)的复的复 合句合句, 并使句意基本保持不变。并使句意基本保持不变。1. A new kind of carrier rocket has successfully finished its first flight and the news is very exciting. The news that a new kind of carrier rocket has successfully finished its first flight is very exciting.2. The sick elephant, the one in the third cage, attacked its trainer. The sick elephant that was in the third cage attacked its trainer.3. Ann thinks money is the most important thing in life and I dont agree with her opinion. I dont agree with Anns opinion that money is the most important thing in life.4. Bill and Eric are our neighbors and they are going to Disneyland tomorrow. Bill and Eric, our neighbors, are going to Disneyland tomorrow.5. There are some things we cant control and we must face the fact. We must face the fact that there are some things we cant control.6. I suggested that we should share the cost but they didnt like that. They didnt like my suggestion that we should share the cost.7. The California coastline is the longest of all the states and it is a national treasure of the USA. The California coastline, the longest of all the states, is a national treasure of the USA. III. 阅读下面材料阅读下面材料, 在空白处填入适当的内容在空白处填入适当的内容 (1个个 单词单词)或括号内单词的正确形式。或括号内单词的正确形式。 Is the idea of printing body parts science-fiction? Research 1. _ (be) underway for years and is starting to pay 2. _. The principle of the type of printer is almost the same as a normal printer but instead of ink it uses a mixture of gelatin (明明胶胶) and living cells 3. _ (build) biological structures. If the “ink” containsto build has beenoffhuman embryonic stem cells (hESCs), the 3-D tissue could then develop into a human organ such as a kidney or heart. hESCs 4. _ (obtain) from human embryos. They differ 5. _ other cells in that they can develop into any cell type in an adult person. They are ideal for use in replacing, repairing, or regenerating cells, tissue, or organs 6. _ are in poor condition. They can be placed in a solution that/which are obtainedfromthat contains biological 7. _ (instruct) that tell them to develop into tissue types. The process starts with the cells 8. _ (form) embryoid bodies. Bio-printers can pro
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