必修3 Unit4 讲学稿

1、Unit4 Astronomy: the science of the stars 讲学稿 姓名_ 学号_.词组练习1. 及时，终于_2. 下蛋_3. 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_11.冷却_12.掌握的技巧/诀窍_13.在表面_14.密切注视，当心_.单词练习 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.)

2、 _；身体的(adj.)_6.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.）_ 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 devi

3、ce he made is a _ of ropes and pulleys. (system)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) 选词填空Multiplying exist prevent Puzzled puzzling are blocked crashed cheer flo

4、ated to exhaust 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.Many roads _after today，s heavy snow，so you，d

5、 better not go out.6.It was reported that a plane _ soon after it took off，causing 10 deaths.重点句型1.It was not immediately obvious that water was to be fundamental to the development 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

6、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。_2This made it

7、possible for life to begin to develop. 这就使得生命开始进化成为可能。it作形式宾语的句型是：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。_ . 语言点1.They multiplied and filled the oceans and seas with oxygen，which encouraged the later development of early shellfish

8、 and all sorts of fish.(P26)他们繁殖起来就使得早期的海洋充满了氧气，这为早期的贝类及其各种鱼类的发育进一步创造了条件。词语归纳encourage sb.to do sth.鼓励某人做，怂恿某人做urge sb.to do sth.鼓励某人做，怂恿某人做urge o doing sth.鼓励某人做，怂恿某人做即学即练（1）父亲总是鼓励我学好英语。_（2）老师鼓励我报名参加演讲比赛。_2.Before we left，Li Yanping explained to me that the force of gravity would change three

9、 times on our journey.(P30)在启程以前，李彦平向我解释说，在我们的航行中会有三次引力的改变。注意下列句中force的意思。（1）We forced the door open and arrested the two murderers.（强迫,强行）（2）The force of gravity is really mysterious.（力量）（3）When he was only seventeen，he joined the forces to defend his country.(军队)（4）As most men suffered from this s

10、trange disease，the majority of the labour forces in this village were women and children.(劳动力)词语归纳force open强行打开 by force依靠武力force sb.to do sth.迫使做come into force（法律）实施force o doing sth.迫使做in force大批的force one，s way 强行前进或进入force sth.on sb.把强加于即学即练选用上述词组完成下列小片段。It was reported that two peasant

11、workers(1)_(被迫)work 14 hours a day but with little money. One of them couldnt stand it and one of them(2) _ _(强行前进或进入)the boss，s house and killed him. The other(3)_（强迫）a bank clerk(4)_（hand）in the money.3.I cheered up immediately and floated weightlessly around in our spaceship.(P30)我高兴起来，由于失重，我在太空船

12、舱里飘来飘去。注意下列句中cheer的意思。（1）The good news cheered the family.（使高兴，欢呼,为喝彩）（2）See you tomorrow，then cheers.（口语谢谢，干杯，再见）短语归纳cheer up 高兴起来，振奋起来 cheer sb. up (使）充满欢喜、希望、鼓舞（1）咱们去操场为我们的队员加油吧。 _（2）振作起来！我们的困难很快就会过去的。_. 语法填空（一）Most Americans dont like to get advice 1_members of their family. They get advice from

13、 “2_ (strangers)”. When they need advice, they dont usually go to people they know. 3_Instead_ many of them write letters to newspapers and magazines 4_that/which_ give advice on many different subjects, 5_ (including) family problems, the use of language, health, cooking, child care, clothes, and e

14、ven on how 6_ (to buy) a house or a car.Most newspapers regularly print letters from 7_ (readers) with problems. Along with the letters 8_ are answers written by people who are supposed to know how to solve such problems. Some of these writers are doctors, 9_others_ are lawyers or educators. But two

15、 of the most famous writers of advice are women without special 10_ (training) for this kind of work.（二）Liu Xiang was the first Asian 1_ (win) the mens 110m hurdles at the Olympics in Athens. 2_After_ that he became an idol(偶像) to the young people.“I never thought I would run under 13 seconds and br

16、eak the Olympic 3_record_.”said Liu Xiang in tears, “I am very very excited. Im proud not just for myself and for Chinese 4_but_ for Asia. My race went 5_ (wonderfully) from start to finish.” Liu added. “It is 6_an_ amazing experience being the Olympic champion. I want to thank my coach and my frien

17、ds for 7_all_their help. I think today we Chinese have showed the world we 8_could_ run as fast as anybody else.”Since his return from Athens, Liu Xiang 9_has been_ (be) at the center of a media circus and he has been to many press appearances and meetings. But Liu thinks 2004 is just the beginning, and he expects to be at his peak in the 2008 Beijing Olympic