B3U4-astronomythe-science-of-the-stars-英语一轮复习之公开课课件

1、Book3Unit 4Astronomy: the science of the stars课文回顾No one knows exactly_1_the earth began. According to a widely accepted theory, the earth began with a “Big Bang”, _2_exploded loudly and produced water vapor and many gases, _3_ (make) the earths atmosphere. As the earth cooled down, water appeared a

2、nd stayed_4_ the surface. It was the presence of water_5_ allowed the earth to dissolve harmful gases and acids into the oceans and seas, which made_6_ possible for life to develop. First, the appearance of small plants encouraged the development of early shellfish and all sorts of fish.howit making

3、onthatitNext, green plants began to grow on land, _7_were followed by land animals. So reptilesappeared for the first time. Later, dinosaursdeveloped. _8_, they suddenlydisappeared. After that, mammals came into being.Finally, humans appeared and spread all over theearth. However, they are putting t

4、oo much carbondioxide into the atmosphere, making the earth toohot _9_ (live) on. So whether life willcontinue on the earth will dependon_10_this problem can be solved.theyHowever to livewhetherSummary:The passage is about a theory about the formation of the universe. After a big bang, the earth for

5、med, where water appeared and plants and animals developed. At last, humans arrived and they had a great impact on the earth.按Esc键退出返回目录1._ n.天文学_ n.宇航员_n.天文学家_ n.宗教;宗教信仰_ adj.宗教的;虔诚的_ n.学说;理论_adj.理论的_ adj.猛烈的;激烈的_ adv.强烈地_ n.暴力5._adj.有害的_ n.伤害;危害_ vt.伤害;危害_ adj.无害的词汇过关astronomyastronautastronomerre

6、ligionreligioustheorytheoreticalviolentviolentlyviolenceharmfulharmharmharmless vi.存在;生存 n.存在;生活(方式)7. n.谜;难题 vt.& vi.(使)迷惑;(使)为难8. n.生物学 n.生物学家 n.物理学家 n.物理学 adj.物理的;物理学的10. vi.& vt.碰撞;坠落 vi.& vt.(使)浮动;(使)漂浮n.漂浮_ vi.& vt.给称重 n. 称分量 n.重量，分量 adj.失重的 adv.失重地 n.失重existexistencepuzzlepuzzlebiologybiologi

7、stphysicistphysicsphysicalcrashfloatfloatweighweightweightlessweightlesslyweightlessness按Esc键退出返回目录 及时;终于2. 下蛋3. 产生;分娩4. 轮到某人;接着5.prevent.from 6.block out 7.cheer up 8.now that 9.break out 10.watch out 短语回顾in timelay eggsgive birth toin ones turn阻止;制止挡住(光线)感到高兴;感到振奋既然突然发生;爆发密切注意;当心7按Esc键退出返回目录补充短语：_

8、以开始_朝四面八方_用装满_第一次_依靠；依赖_有机会做某事_熟悉；掌握begin within all directionsfillwithfor the first timedepend onhave a chance to do sth.get the hang of be full of/be filled with_vi.存在;生存 _存在于中 _作为而存活 _n.存在 _存在；产生 _ 靠为生词汇拓展existexist inexist as.existencecome into existenceexist on.现在，人们不相信有鬼了。 People dont believe

9、the _ of ghost now.2. 剧中的变脸技术仅在中国存在。 The technology for performing Bianlian in Chuan opera only _ in China.3. 巴基斯坦在战后成为独立的国家。 Pakistan _ as an independent country after the war.existenceexists incame into existence2.break out vi.(战争、火灾等)突然发生;爆发用法拓展break away frombreak downbreak inbreak intobreak off

10、break throughbreak upA big explosion _ in an airport in Russia on January 25, 2011.He was late for work this morning, for his car _.Some robbers _ his shop and took away many valuable jewels.The negotiation between them _ without any result.What will happen to the children if Tom and Mary _?broke ou

11、tbroke downbroke intobroke offbroke up3.now that 既然;由于用法拓展常用的引导原因状语从句的连词有:because, since, as, for, now that, in that, seeing that, considering that等。_ you are grown-up, you must stop this childish behaviour.He was absent from the meeting _ he was ill yesterday.Wear strong shoes _ we shall do a lot o

12、f walking.It must have rained last night, _ the ground is wet.Now that/Sincebecauseasfor4.in time 及时;迟早;总有一天用法拓展同时；但是；然而立刻；马上一直;始终;老是准时;按时有时，偶尔，不时一次，每次有个时期；曾经，一度随时，无论何时决不，在任何时候都不at the same timein no timeall the timeon timeat timesat a timeat one timeat any timeat no time不时，偶尔提前from time to timeahea

13、d of time 与time有关的句式：Its time to do sth./Its time that sb. did sth.It/This is the first/second time that sb. have/has done sth.Every/each/the next/the last time+从句到了某人做某事的时间这是某人第次做某事了每次/下次/上次时The soldiers came _ to save her life from the bif fire.I was always sleepy _.Dont recite all together; one _

14、.I believe we can finish it _._ will smoking be permitted here.The old man comes to police for help _.in timeat one timeat a timeon time/ahead of timeAt no timeat times5.prevent sb. (from) doing sth. 阻止某人做某事同义短语: stop sb.(from)doing sth. keep sb.from doing注意:被动语态中,此三个短语的from均不可省略。cant prevent him (f

15、rom) enjoying lifeprevent the plan (from) being carried outbe prevented from being carried out by anyone.1)他的伤残阻止不了他享受人生的乐趣。Hisinjures_.2)谁也不能阻止这个计划的执行。No one can _.The plan cant _6.They produced young generally by laying eggs.它们一般是通过孵蛋而繁衍后代的.Lie, lie , lay 的区别如下:动词原形第三人称单数过去式过去分词现在分词中文释义 lielieslie

16、dliedlying撒谎;谎话 lie lieslaylainlying躺; 位于 laylayslaidlaidlaying放置; 下蛋1. This produced a chain reaction, which made it possible for life to develop.在“make+it+宾语补足语+真正宾语(宾语从句或动词不定式等)”结构中,宾语补足语可以由形容词、名词、分词等充当。用法拓展常用于此结构的动词还有think, feel, find, consider, take等。句型feel ( think , find, make) it + adj. for s

17、b to do sth.句型积累按Esc键退出返回目录模仿造句:1. 我认为对于我来说,解决这道数学题很难.2. 我发现让他在完成这项工作是不可能的3. 我们认为与他争论毫无意义。 I think it difficult for me to solve this math problem.I find it impossible for him to finish the work.We consider it no sense to argue with him. 2. But when I tried to step forward, I found I was carried twic

18、e as far as on the earth and fell over. 但当我试着向前迈步的时候，我发觉我被送出去很远，而且摔倒了，步子的跨度竟是在地球上的两倍。倍数的表达法：用times表倍数，通常用于三倍以上，两倍常用twice。(1)A is three times the size (height, length)of B(2)A is three times as big (high, long) as B(3)A is three times bigger (higher, longer)than B按Esc键退出返回目录模仿造句:我的房子是我父母的两倍大。新机器的运转速度比旧的要快一倍My house is twice as large as my parents. My house is twice larger than my parents.My house is twice the size of my parents.The new machines will work twice as fast as old ones.The new machines wil