人教课标版高中英语选修8Unit2LanguagePoints课件.ppt(课件中不含音视频素材)

1、Welcome to our class!Ready to have fun learning English?掌握以下单词和短语的拼写和用法：掌握以下单词和短语的拼写和用法：strike.into ones heart；from time to time；bring back to life；in vain；resist；merely；initial 掌握以上单词的用法掌握以上单词的用法Teaching Aims:Language Points(Its your turn)(我也来当小老师我也来当小老师)It strikes sb.that.某人某人觉得觉得；某人某人的印象的印象是是stri

2、ke on/upon打在打在上；撞到上；撞到上上be on strike在在罢工罢工go on strike举行罢工举行罢工教材原句教材原句:.proves how the idea struck a mixture of fear and excitement into peoples hearts.1.strike vt.&vi.打；撞击；罢工打；撞击；罢工 n.罢工罢工 strike作动词讲，还有其他含义吗？作动词讲，还有其他含义吗？strike v.擦擦(火柴火柴)；(钟表钟表)敲；敲；(想法等想法等)突然出现；给突然出现；给(人人)某种印象某种印象归纳拓展：归纳拓展：图解助记2.fr

3、om time to time 不时；偶尔不时；偶尔教材原句：教材原句：From time to time people suggest that extinct animals like dinosaurs,can possibly be brought back to life through cloning.【不时，偶尔不时，偶尔的多种表达方式】的多种表达方式】now and then at times sometimes occasionally once in a while 你还记得有关你还记得有关time的常用习语吗？的常用习语吗？on time按时，准时按时，准时 in tim

4、e及时及时 all the time一直，总是一直，总是 at the same time同时同时 by the time 到到.时为止时为止 ahead of time 提前提前 in no time立刻，马上立刻，马上 at a time每次，一次每次，一次 at one time曾经曾经 3.bring back to life使复生，使复活使复生，使复活教材原句：教材原句：From time to time people suggest that extinct animals like dinosaurs,can possibly be brought back to life th

5、rough cloning.【用法指津】【用法指津】bring back to life为及物动词短语，可用于被动语态；为及物动词短语，可用于被动语态；come(back)to life苏醒苏醒，为不及物动词短语。，为不及物动词短语。【bring短语归纳】短语归纳】bring back使回忆；归还使回忆；归还 bring up养育，培养，教育，呕吐养育，培养，教育，呕吐 bring down打垮；降低打垮；降低 bring forward提前，提出，拨快提前，提出，拨快 bring about带来；造成带来；造成 bring in 引入；获利引入；获利 bring on引起，导致引起，导致 b

6、ring out使显现，阐明，出版使显现，阐明，出版 bring through使度过困难；救活使度过困难；救活 bring over使某人转变使某人转变(思想等思想等)【in+n.类介词短语】类介词短语】in detail详细地详细地 in fun开玩笑地开玩笑地 in comfort舒适地舒适地 in peace和平地和平地 in surprise惊奇地惊奇地 in order整齐地整齐地 in turn轮流轮流 in charge主管，负责主管，负责4.in vain白费力气，枉费心机白费力气，枉费心机教材原句：教材原句：All efforts of cloing an animal w

7、ill be in vain if there is not enough diversity in the group to overcome illnesses.vain adj.虚荣的；自负的；徒劳的虚荣的；自负的；徒劳的【in+adj.类介词短语】类介词短语】in brief简言之，总之简言之，总之 in short 简言之，总之简言之，总之in general 一般说来一般说来 in particular 尤其，特别尤其，特别 in public 公开地公开地 in secret秘密地，偷偷地秘密地，偷偷地【用法指津】【用法指津】resist sth.抵制、阻挡某事抵制、阻挡某事re

8、sist doing sth.反对做某事反对做某事cant resist doing sth.忍不住做某事忍不住做某事【单词积累】【单词积累】resistance n.反抗反抗resistant adj.抵抗的；抵抗的；5.resist vt.抵抗；对抗抵抗；对抗教材原句教材原句:.but others will survive and pass on the ability to resist that disease to the next generation.Choose synonyms(近义词近义词)1.It proves(证明证明)how the idea struck a mi

9、xture of fear and exitment into peoples hearts.A.never forget B.confuse C.make people crazy D.scare2.From time to time people suggest that extinct animals A.At a time B.Occasionally C.All the time D.Every time3.People suggest that dinosaurs,can possibly be brought back to life.A.kept up B.resist C.l

10、ived on D.relived4.The initial requirement is that you need perfect DNA.A.apparent B.most important C.original D.most difficult5.All efforts of cloing an animal will be in vain if there is not enough diversity.A.careless B.resultless C.hopeless D.homeless6.The chance of dinosaurs ever returning to t

11、he earth is merely a dream.A.only B.surely C.abruptly D.exactly Quiz:（测一测）（测一测）See what you got from our class today!（yes or no)1.Do you know the history of cloning?2.Do you know the reasons for not cloning?3.Have you mastered(掌握掌握)any important words and phrases?4.Are you active in group discussion

12、s?5.Do you have fun in our class?Fill in the blanks with the phrases given.(小试牛刀小试牛刀)1.Our teacher _ the importance of safety _,so we were all careful when crossing the street.2.My uncle comes to have dinner with us _.3.Im afraid that your efforts are _;he wouldnt listen to others.4.His mother died

13、last year.He wished he could _her_.struck into ourheartsfrom time to timein vain bring back to life from time to time strike.into ones heart(s)in vain bring back to life写作任务写作任务:Give your opinion on cloning写作要求写作要求:注意记叙文的表达方式注意记叙文的表达方式 要写明白自己的观点要写明白自己的观点,层次要分明。层次要分明。写作建议写作建议:本单元主要讲述了本单元主要讲述了“cloning

14、”存在的存在的 问题以及人们的态度问题以及人们的态度,文中可适当就此进行发挥。文中可适当就此进行发挥。Writing I Discussion (5ms)Discuss in groups and write down the information you get.After the discussion,the students write a passage according to the writing task.(There are at least 100 words.)Writing II (20ms)Writing III(12 ms)Checking the article

15、s.1.Ask the students to check the articles for their partners.2.Show some articles on the screen,other students should give some advice.Together with the modern advances in science and technology,the news that Dolly had been born was announced in 1997.However,Dollys death raised many opinions about

16、cloning.Personally,I would like to agree that cloning may do no good to our human beings.One possible version Firstly,seeing Dolly,we may think that cloning animals can easily develop a disease.They cant live long.Secondly,we cant clone animals that have been extinct longer than 10000 years,even if

17、the DNA of dinosaurs could survive this long.Thirdly,based on what we know now,human cloning is just a matter of time.But the assumption that human clones have already been born hasnt been proved yet.In one word,personally,the chances of cloning animals and cloning human beings living on the earth naturally are merely a dream.Homework1.Review the words and language points we have learnt in this class.2.Read more articles about cloning and the natural world.Where there is a will,there is a way!有志者事竟成！有志者事竟成！