1、NSEC Book3 Unit4NSEC Book3 Unit4Astronomy:the science of the stars Astronomy:the science of the stars Lesson 2Learning about language(One period)alternative words and expressionshard or firmusing force to hurt or attackscientific study of the starsusually or widelystop fromnatural large object that
2、circles the sunthe changes as plants or animals grow olderburstThe covering(of something)Way of doing thingssolidviolentastronomygenerallyprevent fromplanetdevelopmentexplodesurfacemethodP27 ex1:My friend Li Yanping was really very interested in _.he liked to watch changes in the moon,the only natur
3、al satellite of the earth through his telescopetelescope.One evening he thought he saw a huge comet _as it hit the moon.The _of the moon produced a lot of dust that became _like a large ball.It seemed as if it would multiply and become a new _.Li Yanping thought he was seeing the _of the universe un
4、til he noticed some dirt on his telescope!he was very disappointeddisappointed.astronomyexplodesurfacesolidplanetdevelopmentP28 ex2:Fierce wordsPeaceful wordsenergetic violent angry cruel terrible shocked harmful jealousgentle patient calm relaxing kind friendlyP28 ex3:1.D 2.B 3.C 4.BP28 ex4:1.It ex
5、ploded loudly with fire and rock,which were in time to produce the water vapour,carbon dioxide,oxygen,nitrogen and other gases,which were to make the earths atmosphere.（Para 1，Line3-5）in time:最终，及时，迟早医生及时赶到了。The doctor came just in time.你迟早能学会做这件事。You will learn how to do it in time.*on time 准时1.It
6、exploded loudly with fire and rock,which were in time to produce the water vapour,carbon dioxide,oxygen,nitrogen and other gases,which were to make the earths atmosphere.（Para 1，Line3-5）to be to do 常用来表示不可避免将要发生的事，表示后来将发生的事年轻时，他不知道自己日后会举世闻名。As a young man,he did not know he was to be world famous la
7、ter on.她将因这个伟大的工作被授予荣誉。She is to be honoured for this great work.2.What it was to become was a mystery until the dust began to slowly combine into a ball moving around the sun.(Para 1,Line1-2)Nobody knew that it was going to be different from other planets going round the sun.(Para1,Line6-7)going,mo
8、ving 在句子中是现在分词当形容词，可以改写成定语从句into a ball which was moving around the sun.planets which were going round the sun.3.This encourage the development of early shellfish and all sorts of fish.(Para2,Line4)encourage:鼓舞，促进，怂恿encourage sb to do sthdevelopment:发展（n.）develop（v.）with the development of 随着科学技术的发展
9、，人们生活 越来越好。With the development of science and technology,people live a better and better life.all sorts of=all kinds of4.They produced young generally by laying eggs.(Para3,Line5)by doing sth 用于说明做某事的手段，方式我通过做单词卡学新单词。I learn new words by making flashcards.他以前是靠画画为生的。He used to make his living by pa
10、inting.lay 放置，铺设，下蛋laid，laid，laying 常见词组：lay an egg下蛋 lay the bet 下赌注lay the table 铺好桌子摆好餐具*lie,lay,lain,lying 躺，位于lie,lied,lied,lying 撒谎5.They are putting too much carbon dioxide into the atmosphere,which prevents heat fromescaping from the earth into space.(Para4,Line4-5)prevent(from)doing sth 阻止做
11、某事她的突然到来阻止了他出去。Her sudden arrival prevented him from going out.我们要采取一些措施来阻止地球被污染。We should do something to prevent the earth from being polluted.*同义词组：stop/keepfrom doing sth 6.Whether life will continue on the earth for millions of years to come will depend onwhether this problem can be solved.(Par
12、a4,Line6-7)depend on/upon sb/sth 依赖，依靠，取决于,指望他是否会成功取决于他是否努力。Whether he will success depends on whether he would work hard.别指望他准时来。Dont depend on his coming on time.Do the following exercises to consolidate:1.Li and Wang did not like each other at first,but _(最终)they became friends.2.Villagers plante
13、d a large number of trees to _(防止土壤被冲走).3._,small plants multiplied and filled the first oceans and seas.4.Whether well go out for a picnic _(视天气而定).in time/at last/finallyprevent soil from being washed/carried awaydepends on the weatherAs time went by1.随着科技的发展，人们越来越多地依靠计算机处理各种各样的事情。（development,dep
14、end on,all sorts of）5.我们应该想办法阻止有害的气体蔓延。（preventfrom,harmful,spread）With the development of science and technology,people have come to depend more and more on the computer to deal with all sorts of things.We should find some methods to prevent the harmful gas(from)spreading.Homework:1.完成课本P63，ex1-2.2.阅读复习P84-86，课文注释1-73.课外了解：牛顿，爱因斯坦，霍金的故事。
