人教版新课标高三英语一轮总复习单元精编课件:必修3Unit4.ppt
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1、Unit 4 Astronomy:the science of the stars 必修 3考点要求考点要求.写出下列必考单词1.大气层n._2.乘,增加v._3人造卫星n._4.不同,不像prep._5.气候n._6.地心引力;重力n._7.理论n._8.碰撞,坠落v._9.宇宙飞船n._10.拉力,拖,牵引力n.v._atmospheremultiplysatelliteunlikeclimategravitytheorycrashspaceshippull11.基本的,基础的adj._12.链子,锁链n._13.天文学n._14.原子n._fundamentalchainastronom
2、yatom.写出下列单词的变化形式1.系统(n.)_;系统的(adj.)_2.球体,地球(n.)_;全球性的(adj.)_3.猛烈的(adj.)_;暴力(n.)_;猛烈地(adv.)_4.生存(v.)_;生存(n.)_5.物理学家(n.)_;物理(n.)_;身体的(adj.)_physicalsystemsystematicglobeglobalviolentviolenceviolentlyexistexistencephysicistphysics6.生物学(n.)_;生物学家(n.)_7.宗教(n.)_;宗教的(adj.)_8.原子(n.)_;原子的(adj.)_biologybiolo
3、gistreligionreligiousatomatomic活学活用用所给单词的适当形式填空。1.The treatment they gave him did him more_ than good,though the doctor insisted it was _.(harm)2.Air _everywhere and its _ makes it possible for us to live on.(exist)3.He is very _.For example,the lifting device he made is a _ of ropes and pulleys.(sy
4、stem)4.A _tour means traveling all around the _.(globe)5.The use of _against the attackers led to more _ clashes.(violently)6.She was a _woman who wouldn,t hurt an ant.(gently)答案:1.harm;harmless 2.exists;existence3.systematic,system 4.global;globe5.violence;violent 6.gentle.翻译下列必背短语1.及时,终于 _2.下蛋 _3.
5、高兴,振奋 _4.产生,分娩 _5.轮到某人 _6.爆发 _7.阻止 _8.既然 _9.以为起点 _10.四面八方 _in timelay eggscheer upgive birth toin one,s turnbreak outprevent.fromnow thatbegin within all direction11.冷却 _12.掌握的技巧/诀窍 _13.在表面 _14.密切注视,当心 _cool downget the hang ofon one,s/the surface watch out活学活用根据括号中的解释,用适当的短语完成句子。1.We got to Washing
6、ton _(sufficiently early so as not to be late)for the cherry blossoms.2.He _(filled with gladness,hope)at the thought of seeing his girl friend again.3.When you _ this new machine,it will help you a lot.(know the skill of)4._!(be on one,s guard;keep looking out for possible trouble)There,s a car com
7、ing!5.SARS _ in 2002 and quite a few people died of it.(happen suddenly)6.Marx,s ideas _(produce young)communism.7.Your prompt action _(stop or hinder sb./sth.)a serious accident.答案:1.in time2.cheered up3.get the hang of4.Watch out5.broke out6.gave birth to7.preventemultiply exist prevent puzzle blo
8、ck crash cheer float exhaust watch.单元重点动词活学活用用上述动词的适当形式填空。1._very fast,rabbits soon became the largest family of all the animals in this woods.2._ at the _ result,he stood there,not knowing what to do.3.There is no need _ yourself clearing upwe,ll do it ourselves.4.Does life _ on other planets?5.Man
9、y roads _after today,s heavy snow,so you,d better not go out.6.It was reported that a plane _ soon after it took off,causing 10 deaths.答案:1.Multiplying 2.Puzzled;puzzling3.to exhaust 4.exist 5.are blocked 6.crashed.重点句型1.It was not immediately obvious that water was to be fundamental to the developm
10、ent of life.(P26)水会对于生命的发展起关键作用,这一点在当时并不明显。It is/was obvious that.“很明显”剖析:It is adj.that.在本句中,it 是形式主语,that引导的从句作真正的主语。it做形式主语时,后面的真正主语可以由不定式,动名词或从句充当。如:It is easier to break down friendship than to build up friendship.破坏友谊比建立友谊要容易。It was amazing that the child could speak English so well.那个孩子的英语说得如
11、此好真是令人惊异。活学活用模仿造句。(1)很明显,我们在这里是非常受欢迎的。_ that we are very welcome here.(2)你现在不方便见我的经理。_(3)对着洒了的牛奶哭泣是没有用的。_ 答案:(1)It is obvious(2)It,s not convenient for you to see my manager now.(3)It,s no use crying over spilt milk.2This made it possible for life to begin to develop.(P26)这就使得生命开始进化成为可能。it作形式宾语的句型是:
12、主语动词it形容词/名词不定式/从句或动名词。活学活用模仿造句。(1)这使我难以控制自己。This made _ to control myself.(2)他认为去前线是他的责任。_(3)我们规定,课内外都讲英语。_ 答案:(1)it hard(2)He considered it his duty to go to the front.(3)We made it a rule to speak English in and out of class.语篇领悟根据课文How Life began on the Earth完成下列短文 At the very beginning,the eart
13、h was just a cloud of (1)(energy)dust.Then the dust combined (2)a ball moving around the sun.After that,it exploded loudly with fire and rock,(3)(produce)water vapour,carbon dioxide and other gases,(4)in the end made the earth,s atmosphere.Then the earth (5)down,and water,one of the earth,s special
14、(6),appeared and stayed on the earth,which made (7)possible for life to begin (8)(develop).Some small plants (9)(grow)in the water appeared on the earth,s surface,(10)(follow)by landanimals,(11)insects,amphibians,reptiles and the (12)important animals called dinosaurs until finally dinosaurs disappe
15、ared (13)of a sudden and some small clever animals with hands and feet appeared and spread all (14)the earth and in place of dinosaurs they became (15)most important animals on the planetthat is,human beings.答案:1.energetic 2.into 3.producing4.which5.cooled 6.qualities7.it 8.to develop9.growing 10.fo
16、llowed 11.including/like12.most13.all 14.over15.the.考点活用用本单元所学词组、句型翻译下列短文 火星上有生命吗?不知道。我们能登陆火星吗?这完全取决于科学技术的发展。人类对火星有了一些了解:火星上没有氧气,火星上中午的温度可能在50度左右,而晚上则在零下100度左右了。这样我们就不能在那里生活。既然火星与地球完全不同,如果我们计划有朝一日去火星的话,我们就要带上氧气,食品,衣服和住的地方(shelter)。但可以肯定,人类迟早会登陆火星的。_答案:Is there life on Mars?We don,t know.Can we land
17、on Mars?It all depends on the development of science and technology.Man has known a little about Mars.There is almost no oxygen on Mars.It might be about 50 degrees above zero at noon and 100 degrees below zero at night,which prevents us from living there.Now that Mars are quite different from our e
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