选修8Unit5.ppt

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1、Unit 5 Meeting your ancestors 会晤祖先,.单词盘点根据词性和汉语意思写出词汇 1._(n.)可能的选择(adj.)供选择的；其他的 2._(vt.&vi.)打断讲话；打岔；暂时中断或中止 3._(vt.)假定；设想,alternative,interrupt,assume,4._(n.)种类；类别；范畴5._(adv.)以方式；不知怎么地6._(vt.)删；删除7._(n.)学院；学会；学术团体；院校 8._(vi.&vt.)加速；促进9._(vt.)逮捕；吸引(n.)逮捕；拘留,category,somehow,delete,academy,accelerate

2、,arrest,10._(adj.)晕眩的；昏乱的；使人发晕或困惑的 11._(n.)挨饿；饿死 _(vi.)挨饿；饿死12._(n.)精确；准确 _(adj.)准确的；精确的13._(adj.)凌乱的；脏的 _(n.)凌乱，脏14._(n.)分析 _(pl.)_(vt.)分析15._(n.)意义；意思；重要性，重要意义 _(adj.)重要的16._(vi.&vt.)鼓掌欢迎；赞赏 _(n.)鼓掌,dizzy,starvation,starve,accuracy,accurate,messy,mess,analysis,analyses,analyse,significance,signifi

3、cant,applaud,applause,【品词自测】根据所给词的适当形式填空 The launch of Chinas first space lab module Tiangong-1 is of great _.In other words,it is _.(significant)The old man was _ to death.People felt pity for his _.(starve),significance,significant,starved,starvation,.短语回放1.不管；不顾_2.至多；最多_3.切碎_4.受够了；饱受；厌烦_5.向前看；为将来

4、打算 _,regardless of,at most,cut up,fed up with,look ahead,6.追溯到_7.因而逮捕某人_8.欣慰地_9.使阻止进入_10.向某人求助 _,date back,arrest sb.for.,with relief,keep out,turn to sb.for help,.句式扫描1.You must be aware that _(就是在这儿)we found evidence of some of the earliest people who lived in this part of the world.2._(要是就好了)it c

5、ould be just like last year!3.She _(就要到达)her destination_(这时)a delicious smell arrested her progress and she stopped.4.Abruptly she sat down,_(结果被抱起)by her laughing,shouting sister,Luna.,its here that,If only,had almost reached,only to be scooped up,when,【仿句自测】根据下面句式仿写句子 if only.“要是就好了”，在虚拟语气中的运用 仿写

6、：我要是能讲几种外语就好了！If only I could speak several foreign languages!,.had done.when刚做了这时仿写：我刚睡着这时他回来了。I had just gone to sleep when he came back.only to do.不定式表示结果状语仿写：我匆忙回到家里结果发现一些东西被偷了。I hurried to my home,only to find something stolen.,.课文再现 A group of students from England has come to the Zhoukoudian

7、caves for a visit.1._ archaeologist is showing them round.The archaeologists 2._(excavate)here for many years.After finding human and animal bones 3._ those caves higher up the hill as well as tools and other objects,they think 4._ is reasonable to assume they lived in these caves,regardless of the

8、cold.They discovered fireplaces in the,An,have been excavating,in,it,centre of the caves 5._ they made fires.Their evidence suggests that our ancestors did wear clothes 6._(make)from animal skins.They also learned to make tools with 7._ they could cut up animals.In addition,they knew 8._ to make the

9、mselves look much 9._(pretty).Perhaps there was trade between early peoples 10._ they travelled to the seaside on their journeys.,where,made,which,how,prettier,or,1.alternative n.可能的选择 adj.供选择的；其他的(1)have no alternative but to do sth.别无选择，只好做某事 an alternative to.的替代品(2)alternatively adv.可供选择地,You ha

10、ve the alternative of marrying or remaining a bachelor.你可以结婚，也可以仍单身，任你选择。We have no alternative but to go on.除了继续下去，我们别无选择。We could walk or alternatively we could go in Teds car.我们可以走路去，也可以乘特德的车去。,【点津】表示“别无选择，只得”的表达方式还有：have no choice but to do;cant choose but do;cant(help)but do;can do nothing but

11、do,We have no choice/alternative but to wait outside.(句型转换)=We _ _ _/_ _/_ _ _ _ wait outside.我们别无选择只得在外面等候。,cannot choose but,cannot(help)but,can do nothing but,【真题链接】2009湖北，27As there is less and less coal and oil,scientists are exploring new ways of making use of _ energy,such as sunlight,wind an

12、d water for power and fuel.(alternative/instant/unique),alternative,2.interrupt vt.&vi.打断讲话；打岔；暂时中断或中止(1)interrupt sb./sth.(with sth.)(因某事)打断某人/某事(2)interruption n.打扰；插嘴；阻断物 without interruption连续地；不断地,We interrupt this programme to bring you a news flash.我们中断节目，报告新闻快讯。Traffic in the city was interr

13、upted by a snowstorm.市内交通被暴风雪所阻断。The rain continued without interruption all the day.雨整天下个不停。,【辨析】理解下列区别并选词填空,突然中断、打断他人的言语或行为，使其不能继续。,较正式的用词，多用被动语态。指扰乱，使人不能平静或妨碍别人工作、思维或正常秩序，是程度较深的打扰。,If you get up early,try not to _ anyone else.Sorry to _,but theres someone to see you.,disturb,interrupt,【助记】,3.assu

14、me vt.假定；设想(1)assume sb.to be.认为某人是It is assumed that.人们认为assuming(that).假设(引导条件状语从句)(2)assumption n.假定；假设 make an assumption做出臆断,I assume that this is only a matter of time.我认为这只是时间问题。I assume so,too.我也是这样认为的。Assuming that it rains tomorrow,what shall we do?假设明天下雨，我们该怎么办？I have always _ _ _ _ _.我一直

15、认为她是美国人。,assumed her to be American,【熟词生义】根据语境选择最佳汉语意思The look of innocence she assumed had us all fooled.A.猜测 B.认为 C.假装 He assumes his new responsibilities.A.猜测 B.假装 C.承担 答案：C C,【想一想】Assuming(that).引导条件状语从句，你对引导条件状语从句的引导词还了解多少？试举例说明。,【拓展延伸】引导条件状语从句的从属连词还有：if,unless(=if.not 如果不；除非，否则)，so/as long as(

16、只要)，in case(万一)，on condition that(条件是),supposing/suppose(假设，如果)，provided that(如果)等。如：You ll fail the exam unless you study hard.除非你努力学习，否则你考试会不及格的。,As long as you dont lose heart,you will succeed.只要你不灰心，就会成功。Supposing/Suppose they refuse us,who else can we turn to for help?假如他们拒绝了我们，我们还能求助于谁？,4.rega

17、rdless of不管；不顾He says what he thinks,regardless of other peoples feelings.他怎么想就怎么说，不考虑别人的感受。Regardless of whether he is right or wrong,we have to follow his decisions.不论他是对还是错，我们必须遵守他的决定。,【点津】(1)regardless of.强调“不认为重要，从而不加以重视或考虑”，而despite和in spite of有“尽管但是”之意。(2)regardless of后可接whether,what引导的从句，而in

18、 spite of和despite后不可接从句。,【拓展】翻译以下短语 with/in regard to_give ones regards to sb._regard.as._,关于,向某人问候,把当作,5.fed up with受够了；饱受；厌烦Im really fed up with this weather.我真的受够了这种天气。I am getting fed up with your stupid comments.我听腻了你那些愚蠢的评价。,【拓展】feed.on/with.用来喂养 feed.to.把喂给 feed on.以为食,用feed相关短语的适当形式填空 Usual

19、ly we _ our children _ milk.Thats to say,we often _ milk _ our children.At last this makes them _ _ _ it,so we know they can _ _ it but not too much.,feed,on,feed,to,fed up with,feed on,6.date back 追溯到 This church dates back to the 13th century.这座教堂可以追溯到13世纪。My interest in stamp collecting dates bac

20、k to my schooldays.我从学生时代就开始爱好集邮。This is an old building dating back to Roman times.这是一座始于罗马时代的古建筑。,【点津】date back to=date from，一般不用于被动语态，也不用于进行时态。,7.If only it could be just like last year!要是能像去年那样有多好呀！“If only+句子”是一个固定句型，表示一种愿望“要是就好了/但愿”。,(1)if only.could/would/might+do.表示对将来事情的愿望(不用should)。(2)if o

21、nly.did.表示对与目前或现在事实相反的愿望。(3)if only.had done.表示对与过去事实相反的愿望。,If only Max were here by my side!要是马克斯能在我身边就好了！If only you had worked with greater care!你工作要是再仔细一些多好啊！If only the whole family _ _ _ during this Spring Festival!今年春节全家能团圆就好了！,could be united,【辨析】理解下列区别并选词填空,表示“但愿，要是就好了”，句子用虚拟语气，表达强烈的愿望或遗憾。,

22、表示“只有”，引导条件状语从句，不用虚拟语气。若其引导的从句置于句首，且与主语间没有逗号隔开，则主句用倒装语序。,Xiao Ming said,“_ I could pass the College Entrance Examination!”,but his father said,“_ you study hard can you go to the university.”,If only,Only if,arrest n.逮捕；拘留 vt.逮捕；吸引(1)arrest sb.for.因而逮捕某人 get arrested遭逮捕 arrest ones attention引起某人的注意(

23、2)under arrest被捕 make an arrest进行拘捕,The beautiful sunset _ _ _,and we stopped to watch it.美丽的日落吸引了我们的注意力，我们停下来观看。The young man got arrested for causing that serious accident.因造成严重事故，这个年轻人被捕了。Fifteen persons were under arrest because of the serious violence.由于暴乱，十五人被捕。,arrested our attention,(1)look相

24、关短语的具体应用(2)at most与其他相近短语的辨析(3)不定式作结果状语的运用,1.完成句子 Would you please _(浏览试卷)for me and see if there are any obvious mistakes?You can _(查阅这个单词)in the vocabulary.,look through the paper,look up this word,2.选词填空(at least/at most/at last)Peter has to spend _ two hours every day on the demanding math assignment.We have many things to do on hand;we can stay for two days _.,at least,at most,3.完成句子汤姆于1月18日到达上海，结果发现约翰已先抵达。Tom arrived at Shanghai on January 18th,_ John had got there before.他冲到学校门口，却发现门锁上了。He rushed to the school gate,_.,only to find that,only to discover that it was locked,