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1、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
2、.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
3、,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 conflict.Our goal is not that we get something and the other gets no
4、thing，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 1AIDS is a disease that breaks down the bodys immune _. Asituation Borigin Csystem Dpreservation 2_ crimes such as murder or rape are on the increase in this district. AGenuine
5、BViolent CFundamental DSecure 3The _ at home has been depressing since they had that fight. Aatmosphere Bbackground Cemergency Doccasion 4The festival has been a great success，_ last year when it rained nonstop. Abesides Bbeyond Cdespite Dunlike,C,B,A,D,5The Government fears the strike may produce a
6、 _ reaction in other industries. Afloat Batom Cseries Dchain 6If you _ three by three，you get nine. Amultiply Bpuzzle Cseek Dcombine 7There is no evidence that life _ on other planets. Aresponds BExists Cexplodes Dsinks,D,A,B,8For the sake of her daughters health，she decided to move to a warm _. Awe
7、ather BTemperature Cseason Dclimate 9Three people were killed when their car _ into a lorry. Acharged BCrashed Cbalanced Dglared 10The sound of her voice came _ down from an upstairs window. Afloating Bsettling Cblocking Dpacking,B,D,A,.短语填空 in time；now that；break out；get close to；cheer up；give birt
8、h to；in ones turn；watch out；block out；get the hang of 1Dont worryIm sure things will get better _. 2We congratulated her on a fine healthy baby. 3Now that we have finished designing，the company， _ ，should do the constructing work. 4The wall _ all the light.It should be pulled down.,in time,giving bi
9、rth to,in its turn,blocks out,5She told her child to _ when crossing the street. 6Using the computer isnt difficult once you it. 7 you are grownup，you should not rely on your parents. 8Should another world war _，what would become of human beings? 9The crowd when they saw the teams arrive. 10Tell the
10、 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) 2Whether 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) 3When we get closer to the moon，we shall
11、_(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 1This produced a chain reaction，which made _ possible for life to develop. Athat Bthem Cit Done 2Li Yanping _ that the force of gravity would change three times on our journey
12、. Aexplained to me Bexplained me Cexplained with me Dexplained me of 3As the rocket rose slowly into the air we began to feel the pull of the earth，which is _ we call gravity. Ahow Bwhere Cwhen Dwhat,C,A,D,4But when I tried to step forward I found I was carried _ on the earth and fell over. Aas far
13、as twice Bas twice far as Ctwice as far as Das far twice as 5We watched，_ as fire broke out on the outside of the spaceship as the earths gravity increased. Aamazing Bamazed Cbeing amazing Dbeing amazed,C,B,知识要点整合,核心词汇梳理,1unlike 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
14、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。,2thus 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 wa
15、s 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。,3exist 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
16、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。,4mass n. 质量；团，块；大量 识记a mass of/masses of大量的；大批的；许多M
17、asses 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 in
18、fluenced 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,1in 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。 2get the hang of 熟悉；掌握
19、；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。 3break 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
20、 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 wa
21、nt 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
22、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。,2Walking 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,