高考英语 Unit4 总复习课件 新人教版必修3 课件.ppt

单击此处编辑母版文本样式,单元知识检测,必修,4,高考总复习（人教版,广东专版）,考点突破,实战演练,.,重点单词,1.,adj,.,猛烈的；激烈的；强暴的,n,激烈；猛烈,2.,adj,.,有害的,n,伤害,(,反义词,),3.,n,发展,v,发展,adj,.,发展中的,adj,.,发达的；先进的,4.,v,依靠；依赖,n,依靠,adj,.,依赖的,(,反义词,),独立,violent,violence,harmful,harm,harmless,development,develop,developing,developed,depend,dependence,dependent,independent,5.,v,存在；生存,n,生存,6.,n,到场,adj,.,到场的；出席的,adj,.,缺席的；不到场的,7.,v,使失望；使落空,adj,.,感到失望的,adj,.,令人失望的,n,失望,8.,ad,v,.,逐渐地,adj,.,逐渐的,exist,existence,presence,present,absent,disappoint,disappointed,disappointing,disappointment,gradually,gradual,9.,n,谜；难题；,v,.(,使,),迷惑,adj,.,感到迷惑的,adj,.,令人迷惑的,.,重点短语,1.solar,太阳系,2.,eggs,下蛋,3.in one,s,轮到某人；接着,4.,out,挡住,(,光线,),5.get the,of,熟悉；掌握；理解,puzzle,puzzled,puzzling,system,lay,turn,block,hang,6.,out,密切注视；当心；提防,7.,on,依靠；依赖,8.in,及时；终于,9.give,to,产生；分娩,10.,up,感到高兴；感到振奋,11.,既然,12.,out,爆发；突发,13.as a,of,由于,的结果,14.get,to,靠近,watch,depend,time,birth,cheer,now that,break,result,close,15.be,to,对,有害,16.,.from,阻止；制止,17.to one,s,令某人失望的是,18.cool,冷却,19.,(,时间,),前进；推移；走过,e into,开始存在；产生,harmful,prevent,disappointment,down,go by,existence,.,重点句型,1,.,it,was to become was uncertain until between,4.5 and 3.8 billion years ago when the dust,settled,into,a,solid globe.,随后它会变成什么没人能知道，直到,38,45,亿年前，这团尘埃才慢慢地形成一个固体的球状物。,What,2.So,life will continue on the earth for millions of years to come will depend on,this problem can be solved.,所以，在未来的数百万年中，生命能否在地球上延续取决于这个问题能否得到解决。,whether,whether,3.When we get closer to the moon,we shall feel its gravity pulling us,but it will not be,the earth,s.,当我们更接近月球时，就会感到月球的引力在拉我们。但是，月球的引力不像地球的引力那样大。,as strong a pull as,4.But when I tried to step forward,I found I was carried,on the earth and fell over.,而当我试着向前迈步的时候，我发觉我被送出去很远，步子的跨度竟是地球上的两倍，因而我摔倒了。,twice as far as,.,语篇练习,根据课文,How Life began on the Earth,完成下列短文。,At the very beginning,，,the earth 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 cooled _,5,_,，,and water,，,one of the earth,s special qualities,，,appeared and stayed_,6,_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 land animals,，,_,11,_insects,，,amphibians,，,reptiles and the_,12,_important animals called dinosaurs until finally dinosaurs disappeared_,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.producing,4.which,5.down,6.on,7.it,8.to develop,9.growing,10.followed,11.including/like,12.most,13.all,14.over,15.the,.,重点词汇及短语,1,exist,v,i,.,存在；生存,They laid eggs too and,existed,on the earth for more than 140 million years.(,回归课本,P,26,),要点导航,exist in,存在于,之中,exist on,靠,为生,exist by,靠,生存,existing,adj,.,目前的；现存的,existence,n,存在；生存,be in existence,存在,come into existence,开始存在；成立,bring into existence,使发生，产生,完成句子,(1),关于宇宙是如何产生的，科学家们有许多种论说。,Scientists have many theories about how the universe first,.,(2),目前他有三份不同的健康记录。,There are three different versions of his health record currently,.,came into existence,in existence,(3),别再假装这个问题不存在了。,Stop pretending the problem,.,(4),那位病人靠吃米饭和水活着。,The patient,rice and water.,2,puzzle,n,难题；谜,；,v,t,.&,v,i,.,(,使,),困惑；,(,使,),糊涂,How life began on earth is one of the biggest,puzzles,that scientists found hard to solve.(,回归课本,P,27,),doesn,t exist,exists on,要点导航,a crossword puzzle,纵横字谜,puzzle over/about,sth,.,对,苦苦思索,(,以便理解,),puzzle,sth.out,开动脑筋琢磨出,的答案或解决方法,puzzled,adj,.,迷惑不解的；困惑的，茫然的,puzzling,adj,.,令人费解的；令人迷惑的,puzzlement,n,困惑；迷惘,完成句子,(1),他为何做那样的事，我们完全搞不懂。,to us why he did that.,(2),这个句子令我困惑。,This sentence,(3),她几天也琢磨不透他那封奇怪的来信。,She,s been,his strange,letter,for days.,(4),老师让学生动脑筋自行寻找问题的答案。,The teacher left the children,the answer to the problem themselves.,It,s quite a puzzle,puzzles me.,puzzling over,to puzzle out,3,escape,v,&,n,.,逃跑，逃离,.which prevents heat from,escaping,from the earth into space.(,回归课本,P,26,),要点导航,escape,n,.,/doing,sth,.,逃脱了,/,避免了,escape from/out of.,从,逃跑,sth.escape,sb,.,被某人遗忘；未被注意,a narrow escape,九死一生,make one,s escape,逃跑,归纳辨析,escape,，,flee,，,run away,(1)escape,着重强调逃跑后的结果，而不是逃跑的动作本身。,We all escaped unscathed.,我们全部安然逃脱。,(2)flee,着重强调逃跑的行为，常含有因,“,惧怕,”,而逃跑的意味。,The enemy soldiers were fleeing in all directions.,敌兵四处逃窜。,(3)run away,强调动作性，有时含有“不辞而别”之意，是口头用语。,Nobody could foresee that he would run away.,谁也没料到他会不辞而别。,完成句子,(1),有什么办法可以避免和他见面吗？,Is there any way to,him?,(2),他从敌人的监狱逃了出来。,He,the enemy,s prison.,(3),他在一个雨夜逃走了。,He,a rainy night.,(4),那可真是九死一生。,That is really,.,(5),他的名字我一时忘了。,His name,for the moment.,escape meeting,escaped from,made his escape on,a narrow/near escape,escaped me,4,harmful,adj,.,有害的；可致损伤的,What many scientists believe is that the continued presence of water allowed the earth to dissolve,harmful,gases and acids into the oceans and seas.(,回归课本,P,26,),要点导航,be harmful to,对,有害,do,sb.harm,/do harm to,sb,.,对某人有害,do more harm than good,弊大于利,out of harm,s way,在安全的地方,There is no harm,in(sb.,s)doing,sth,.(,某人,),做某事无害处,It does no,harm(for,sb.)to,do,sth,.(,某人,),做某事无害处,come to harm(,身体、精神或道义上,),受到损害,do,sb.good,/do good to,sb,.,对某人有好处,It is no good doing,sth,.,做某事没好处,完成句子,(1),吸烟有害健康。,Smoking,your health.,(2),这些是吸烟的害处。,These are,of smoking.,(3),那次台风对稻谷的收成造成了很大的损害。,The typhoon,the rice crop.,is harmful to,the harmful effects,did great harm to,(4),这种细菌对人无害。,The bacteria,human beings.,(5),他可能会拒绝，但问一问也无妨。,He may say no,，,but,in asking.,(6),我们决不做有损和平事业的事。,We don,t do anything that will,.,is harmless to,there,s no harm,harm the cause of peace,5,break out,突发；爆发,We watched,amazed as fire,broke,_,out,_on,the outside of the spaceship as the earth,s gravity increased.(,回归课本,P,31,),要点导航,break one,s heart,使某人难过,break up,打碎；驱散；破裂；放假；散会,break into,闯入，破门而入,break off,休息一下；打断；结束；突然停止谈话；断绝关系,break down,出故障，坏掉；使分解,(,为,),break in,闯入；打断,break away from,打破，脱离,break through,突围；冲破；冲垮,without a break/rest,不停地，一直,Give me a break,！住嘴！饶了我吧！,have a break,休息一下,完成句子,(1)911,事件发生的时候，他们正在去纽约的飞机上。,They were on a plane to New York when the 9 11 Event,.,(2),双方球迷发生了打斗。,Fighting had,between rival groups of fans.,6,in time,及时；最终,They were,to produce,carbon,nitrogen,，,water,vapour,and other gases,，,.(,回归课本,P,25,),broke out,broken out,in time,要点导航,against time,争分夺秒地；尽快地,ahead of time,提前；提早,all the time,一直；始终,as time goes on,随着时间的推移,at no time,绝不，在任何时候都不,at one time,曾经，一度,at a time,一次,at any time,任何时候,at all times,总是,at the same time,同时；然而；可是,from time to time,有时；不时,gain time(,钟、表等,),走得快,have a good time,玩得愉快,in no time,立刻，马上,on time,按时，准时,take one,s time,从容进行，不慌不忙,完成句子,(1),你早晚能学会做这件事的。,You,ll learn how to do it,.,(2),最终他们学会了接受他们的继母。,They learned to accept their stepmother,.,(3),谢谢你及时提醒我，否则我就赶不上车了。,Thank you for reminding me,or I would have missed the bus.,(4),我赶得上那趟火车吗？,Will I be,the train?,in time,in time,in time,in time for,(5),救护车及时赶来，挽救了她的生命。,The ambulance got there just,save,her life.,7,give birth to,产生；生育,These animals were different from all life forms in the past,，,because they,gave,_,birth,_,to,young baby animals.(,回归课本,P,26,),in time to,要点导航,at birth,出生，诞生,by birth,在血统上；生来,be of good/noble birth,出身名门,from birth,天生，先天,a second birth,再生，新生,bring it to birth,使产生,the birth of an idea,一个想法的萌生,the birth of a nation,一个国家的诞生,完成句子,(1)His sister,(,生了个男孩,)yesterday.,(2)He only weighed three pounds,(,出生时,),(3)Mark has been blind,(,天生,),gave birth to a boy,at birth,from birth,.,经典句型,1,What it was to become was uncertain until between 4.5 and 3.8 billion years ago when the dust settled into a solid globe.,随后它会变成什么没人能知道，直到,38,45,亿年前，这团尘埃才慢慢地形成一个固体的球状物。,要点导航,to become,不定式短语在主语从句中作表语。,“,be,动词不定式,”,的常见用法还有：,(1),表示命令，意为,“,必须，不得不,”,(,must,，,have to),。,You are to do your homework before you watch TV.,你得做完了作业才能看电视。,(2),表示可能性，相当于,can,，主要用于疑问句和否定句。,How am I to know what has become of him?,我怎么知道他的遭遇如何呢？,Not a sound was to be heard.,一点声音也不可能听到。,(3),表示假设。,Certain skills must be learned if one is to use English well.,如果想要用好英语，某些技巧是必须得学的。,(4),表示目的。,This house is to be let or sold.,这房子要出租或出售。,(5),表示,“,命运注定,”,，通常用于过去时。,完成句子,(1),年轻时，他不知道自己日后会举世闻名。,As a young man he didn,t know he,later on.,(2),这个发现对心脏病的治疗产生了重大影响。,This discovery,on the treatment of heart disease.,(3),后来这里成了第一批外国人在澳洲的居住地。,Later this was,of the first foreign settlements in Australia.,was to win world fame,was to have a major effect,to become the place,(4),在,1642,年，一个男孩在英国出生了，后来他成了世界历史上最伟大的科学家之一。,In 1642 a boy was born in England who,one of the greatest scientists in the history of the world.,2,.,，,but it will not be as strong a pull as the earth,s.,，但它不如地球的引力那么强。,was to become,要点导航,as,adj,.,a(n,),n,.,as,句型是,“,as.,as,”,结构的一种变化形式。与,as,的这种用法类似的词还有,too.to.,句型中的,too,，感叹句中的,how,，,so.that.,句型中的,so,等。,as.,as,.,比较结构：,(1),基本用法：,as,形容词或副词原级,as,分句。否定形式为,not as/so.as,。主句主语与,as,分句主语不同但比较的项目相同。,Jahn,is as bright as Bob.,约翰与鲍勃一样聪明。,(2),主语相同，但比较的项目不同。,The girl was as intelligent as she was beautiful.,这姑娘既漂亮又聪明。,(3)as much/many,名词,as,分句,He took as much butter as he needed.,他带的这些黄油够需要的。,(4)as,形容词原级名词词组,as,分句,Jack is as efficient a worker as Bill.,杰克和比尔都是工作效率很高的工人。,完成句子,(1),我想用一种尽可能大众化的方式把我的个人经历表达出来。,I want to express my personal experience in,.,(2),这位歌手希望利用尽可能流行的歌曲来表达个人的思想情感。,The singer tends to express his feelings and thoughts in,.,as universal a way as possible,as popular a song as possible,(3),他力图解最难的题目以显示他的聪明。,He tried to show his intelligence by working out,.,(4),迪克和迈克是一样淘气的孩子。,Dick is,Mike.,as difficult a problem as possible,as naughty a boy as,3,.,，,I found I was carried twice as far as on the earth and fell over.,(,当我向前迈步的时候,),我发现我所走的距离是在地球上的两倍，我跌倒了。,要点导航,倍数表达法：,(1),.times as.,as,.,是,的几倍,Asia is four times as large as Europe.,亚洲的大小是欧洲的,4,倍。,(2),.times,形容词,/,副词比较级,than,The new building is four times higher than the old one.,新楼比旧楼高,4,倍。,(3),.times,the size,/height/,length,/width/,depth,of.,This ball is twice the size of that one.,这个球的大小是那个球的两倍。,(4),.times,what,从句,The production now is there times what it was ten years ago.,现在的产量是十年前的,3,倍。,完成句子,(1),现在的书比五年前多五倍。,There are more than,five years ago.,(2),我们每个人比,1910,年吃的蔬菜多三倍。,We are eating,vegetables per person today as we did in 1910.,(3),我的房子是我父母房子的两倍大。,My house is,my parents,five times as many books as,three times more than,twice the size of,4,This produced a chain reaction,，,which made it possible for life to develop.,这样就产生了一条反应链，使得生命的发展成为了可能。,要点导航,在此句中，,it,作形式宾语，真正的宾语是,to develop,。,it,作形式宾语还可代替动名词、不定式、从句。,it,还可以作形式主语，可构成如下句型：,It,s,adj,.,for,sb.to,do,sth,.,对某人来说做某事,It,s,adj,.,of,sb.to,do,sth,.,某人如此,而做某事,强调句型：,It is,被强调部分,who/that.,It is the first/second time that.,某人第几次做某事,It is(high)time that,sb.did,/should do,sth,.,是某人该做,的时候了,It,s said,/reported/,thought that.,据说,/,报道,/,认为,It,s a pity,/a shame/,a wonder that.,可惜,/,奇怪的是,It happens,/appears/,seems that.,恰巧,/,好像,It seems/looks as if.,看起来好像,It,s up to,sb.to,do,sth,.,该某人做某事,完成句子,(1),他认为帮助别人是他的职责。,He thinks,others.,(2),他把每天早晨六点起床作为制度。,He made,at,six in the morning.,(3),我们认为去海边没用。,We considered,to the seaside.,(4),我发现学好英语很难。,I find,English well.,it his duty to help,it a rule to get up,it no use going,it very difficult to learn,(5),我们都认为你没参加聚会很遗憾。,We all considered,you didn,t come to the party.,it a pity that,.,话题美文诵读,Should a Student Own a Mobile Phone?,学生应该拥有手机吗？,Nowadays,，,with the rapid development of information industry,the mobile phone plays an important part in people,s life.It is not uncommon to find students using mobile phones on campus.In my opinion,it is not necessary for a middle school student to own a mobile phone.The following are the reasons of my viewpoint.,First of all,mobile phones give unpleasant noise at some important occasions when the owners forget to turn them off.I often feel annoyed at the sound of the mobile phone when I am having a,lesson.Secondly,the main task for students is to acquire knowledge and learn practical skills.We should have a clear sense of our duties and focus our time and energy on studies so that we shall be better enabled to build up a successful career in,life.Using,mobile phones distracts our attention and has negative effect on our,studies.Furthermore,a mobile phone costs a lot of money and so it only adds the financial burden to the family.,For all these reasons we should put away our mobile phones and focus our attention on studies.,【,文章结构,】,提出议题；分析学生不应拥有手机的理由；结论。,【,语言亮点,】,词语,(1)on campus,在校园,(2)acquire knowledge and learn practical skills,学习知识，掌握本领,(3)have a clear sense of the duties,有责任感,(4)focus our time and energy on studies,把时间和精力集中在学习上,佳句,(1)It is not uncommon to find students using mobile phones on campus.,(2)I often feel annoyed at the sound of the mobile phone when I am having a lesson.,