高考英语一轮复习 Unit 4 Astronomy the science of the stars课件 新人教版必修3 课件.ppt

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Unit 4,Astronomy:the science of the stars,概括大意,Science is not just knowledge,；,it is a way of thinking,，,a method of finding out about the,world.We,see something,，,we try to explain it,，,and we test our idea by setting up all,experiments.One,day you come home and find the plant on the table has fallen,over.You,think it might be the wind from the open window or the,cat.So,you close the window,，,but leave the cat in and see what happens(you can also try leaving the window open and shutting the cat out),Of course,，,you remember there may be a third explanation.,此段落的大意是：,_,What exactly is science?,课前,10,分钟,漫画欣赏,画面描述,Two goats are tied to each other with a,rope.They,both see some grass in opposite directions,，,and try to pull to get their own,food.However,the rope is too short to allow them to eat their food.,寓意理解,Cooperation is better than,conflictOur,goal is not that we get something and the other gets nothing,，,but that all people get what they,want.Thus,，,cooperation will benefit everyone.,你能否对此加以扩展，写一篇,120,词左右的小短文？,课堂双基回归,.,词义辨析,1,AIDS is a disease that breaks down the bodys immune _.,A,situation B,origin C,system D,preservation,2,_ crimes such as murder or rape are on the increase in,this district.,A,Genuine B,Violent C,Fundamental D,Secure,3,The _ at home has been depressing since they had that,fight.,A,atmosphere B,background C,emergency D,occasion,4,The festival has been a great success,，,_ last year,when it rained nonstop.,A,besides B,beyond C,despite D,unlike,C,B,A,D,5,The Government fears the strike may produce a,_ reaction in other industries.,A,float B,atom C,series D,chain,6,If you _ three by three,，,you get nine.,A,multiply B,puzzle,C,seek D,combine,7,There is no evidence that life _ on other,planets.,A,responds B,Exists,C,explodes D,sinks,D,A,B,8,For the sake of her daughters health,，,she decided to,move to a warm _.,A,weather B,Temperature,C,season D,climate,9,Three people were killed when their car _ into a,lorry.,A,charged B,Crashed,C,balanced D,glared,10,The sound of her voice came _ down from an,upstairs window.,A,floating B,settling,C,blocking D,packing,B,D,A,.,短语填空,in time,；,now that,；,break out,；,get close to,；,cheer up,；,give,birth to,；,in ones turn,；,watch out,；,block out,；,get the hang of,1,Dont worryIm sure things will get better _.,2,We congratulated her on,a fine healthy,baby.,3,Now that we have finished designing,，,the company,，,_,，,should do the constructing work.,4,The wall _ all the,light.It,should be pulled down.,in time,giving birth to,in its turn,blocks out,5,She told her child to _ when crossing the street.,6,Using the computer isnt difficult once you,it.,7,you are grownup,，you should not rely on your,parents.,8,Should another world war _,，,what would become,of human beings?,9,The crowd,when they saw the teams arrive.,10,Tell the children not to,the cave.,watch out,get the hang of,Now that,break out,cheered up,get close to,.,完成句子,1,(,随着地球的冷却,),，,water began to,appear on its,surface.(cool,),2,Whether life will continue on the earth for millions of years to,come will,(,取,决于这个问题能否得到解决,),(depend),3,When we get closer to the moon,，,we shall,_(,感到月球的引力在拉我们,),(pull),As the earth cooled down,depend on whether this problem can be solved,feel its gravity pulling us,.,单项填空1,This produced a chain reaction,，,which made _,possible for life to develop.,A,that B,them C,it D,one,2,Li,Yanping,_ that the force of gravity would,change three times on our journey.,A,explained to me B,explained me,C,explained with me D,explained me of,3,As the rocket rose slowly into the air we began to feel,the pull of the earth,，,which is _ we call gravity.,A,how B,where C,when D,what,C,A,D,4,But when I tried to step forward I found I was carried,_ on the earth and fell over.,A,as far as twice B,as twice far as,C,twice as far as D,as far twice as,5,We watched,，,_ as fire broke out on the outside,of the spaceship as the earths gravity increased.,A,amazing B,amazed,C,being amazing D,being amazed,C,B,知识要点整合,核心词汇梳理,1,unlike prep.,不像；和,不同,Unlike his brother,，,he has a good sense of humor.,和他兄弟不同，他有种幽默感。,In his jeans and,Tshirt,，,Charles looked most unlike a lawyer.,查尔斯身穿牛仔裤和,T,恤衫，看上去一点儿也不像个律师。,Its unlike Beth to drink so much,；,I wonder if shes all right.,贝思喝这么多可不像她平时，我不知道她有没有事。,2,thus adv.,如此；这样；因此,He forgot to turn on the radio and thus missed the program.,他忘了打开收音机，因此错过了那个节目。,Most of the evidence was destroyed in the,fire.Thus,it,would be almost impossible to prove him guilty.,多数证据已毁于火灾，因而要证明他有罪几乎是不可能的。,3,exist,vi.,存在；生存,句型,there exists,.,意为“有,；某地有,；某地存在着,”,，,相当于,there be,句型。,There always exists a force of attraction between two bodies.,两物体间总是存在着引力。,There existed a temple where the school stands.,现在的这个学校所在地原来有一座寺庙。,搭配,exist on,.,靠,生存或生活,The hostages existed on bread and water for over 5 months.,人质靠面包和水生存了,5,个多月。,They cant exist on the money hes earning.,他们靠他挣的那点钱无法维持生活。,拓展,existing“,现存的，现在的”，一般用作定语。,Changes will be made to the existing laws.,现行的法律将被修改。,4,mass,n.,质量；团，块；大量,识记,a mass of/masses of,大量的；大批的；许多,Masses of books,covered every surface in the room.,大量的书籍摊满了整个房间。,We still had masses of time to spare.,我们仍然可以抽出许多时间。,提示,a mass of,或,masses of,既可修饰复数名词，亦可修饰不可数名,词。,Ive got masses of work to do.,我有一大堆的工作要做。,A mass of tourists came into the city.,大量的游客来到这个城市。,辨析,the mass of.,大部分；大多数,The mass of modern people are,influenced by television.,现代人大多受到电视的影响。,识记,in a mass,大量地；大批地,Sports fans came to the stadium in a,mass before the game.,大批的运动爱好者在赛前就来到了体育馆。,重点短语例释,1,in time,及时；早晚；迟早,We got to the station just in time to catch the bus.,我们到达车站时，刚好赶上那班车。,In time he will see what is right.,他早晚会明白什么才是对的。,2,get the hang of,熟悉；掌握；理解,Press this button when the light goes onyoull soon get the,hang of it.,当灯亮起来后，请按这个按钮，你很快就能掌握。,I just cant get the hang of the reason why they insist on,going by motorbike.,我就是不明白他们为什么坚持骑摩托车去。,3,break out,突然发生；爆发,A terrible fire broke out at the supermarket last night.,昨晚超市突然发生了大火。,A quarrel broke out between the young couple.,年轻夫妇间发生了争吵疑难语句细解,1.When we get closer to the moon,，,we shall feel its gravity,pulling us but it will not be as strong a pull as the earths.,当我,们离月球越来越近时，我们会感觉到它对我们的引力，但是这,种引力没有地球的引力那样大。,【,要点指南,】as strong a pull as.,是“,as.,as,.”,比较结构的一种,变化形式。在,as.,as,中间可使用名词，但名词前要有形容词和,不定冠词。,I want to express my personal experience in as universal a way,as possible.,我想用一种尽可能普遍化的方式把我的个人经历表,达出来。,The singer tends to express his feelings and thoughts in as,popular a song as possible.,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。,Dick is as naughty a boy as Mike.,迪克和迈克是一样淘气的孩子。,拓展,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。,Its too difficult a problem for me to work out.,这个问题太难了，我解决不了。,How lovely a day it is,！天气多好啊！,She is so clever a girl that she can understand it.,她是个聪明的姑娘，会明白的。,2,Walking does need a bit of practice now that gravity has,changed.,重力改变了，看来走路也的确需要练一练了。,【,要点指南,】now that,是固定短语，意为“既然；由于”，引,出原因状语从句，,that,可省略。,Now(that)he is well again,，,he can go on with his English,study.,既然恢复了健康，他就可以继续学习英语。,Now that we are developing new technology at such a high,pace,，,the true challenge is to find new ways of using it.,既然我们正高速地发展新技术，真正的挑战在于寻找新的,使用途径。,点击此处进入 课后能力训练,