必修三 4.2《unit4 grammar2》.ppt

新课标人教版课件系列,高中英语 必修3-4.2,Unit 4 Astronomy: the science of the stars,Grammar: The subject clause,Word-consolidation-II (2m),2.Complete this passage with some of the above words. My friend Li Yanping was really very interested in _.he liked to watch changes in the moon,the only natural satellite of the earth through his telescope. 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 until he noticed some dirt on his telescope!he was very disappointed.,astronomy,explode,surface,solid,planet,development,energetic violent gentle patient angry cruel terrible calm relaxing shocked harmful kind friendly jealous,Put these words into the more suitable of the two boxes.,Ex. 3 P.28,energetic,violent,angry,cruel,terrible,shocked,harmful,jealous,gentle,patient,calm,relaxing,kind,friendly,Ex.4 1-4 DBCB,Review the passage “how life began on the earth” and translate the following sentences.,谁也不知道地球会有别于其他行星. 这就是地球之独有特性的初次显现. 许多人认为这对生命的起源特别重要. 没有人懂得这些植物就是许多变化的开始.,Nobody knew that it was going to be different from other planets.,This is how the earth began to show it special qualities.,Many people think that this was important for the beginning of life.,Nobody understood that these plants were the starts of many changes.,Grammar,What part does the underlined part serve as in each sentence? A tree has fallen across the road. You are a student. To find your way can be a problem. Smoking is bad for you.,“How do you do?” is a greeting. What she said is not yet known. That we shall be late is certain. It is certain that we shall be late. We can see from these sentences that a sentence serves as subject, so we call it Subject Clause.,What she did is not yet known. Whoever comes is welcome. Whichever you want is yours. When he will be back depends on the weather. Where we live doesnt matter. How the pyramids were built was still a mystery. That price will go up is certain. That they are badly in need of help is quite clear. Whether they will sell the house is not yet decided.,引导主语从句的连接词有： 连词that, whether； 连接代词who, whoever, what, whatever,和which； 连接副词when, whenever , where, how和why。,Please do Ex1 on P27 (Ex book A),注意: 有时为了使句子结构平衡, 避免 “头重脚轻”, 常用 it 作形式主语, 而把从句放在后面。 例如: It is a pity that she has made such a mistake. 她犯了这样一个错误, 真是遗憾。,Can you rewrite the following sentences. 1.That the earth turns around the sun is known to all. 2. That price will go up is certain. 3. That they are badly in need of help is quite clear.,It is known to all that the earth turns around the sun.,It is certain that price will go up .,It is quite clear that they are badly in need of help.,这样就构成了下面一些常用句型: 1) It is + adj. / n. +从句 It is a pity/shame that. 遗憾的是 It is possible that. 很可能 It is unlikely that. 不可能 2) It +不及物动词+从句 It seems/appears that. 似乎 It happened that. 碰巧,3) It + be +过去分词+从句 It is said that. 据说 It is known to all that. 众所周知 It is reported that. 据报道 It is believed that. 据信;人们相信 It is suggested that. 有人建议,It must be pointed out that. 必须指出 It has been proved that. 已证明. 如: It is believed that at least a score of buildings were damaged or destroyed. 据信, 至少有二十座楼房遭到破坏或彻底毁掉。,It has been decided that the exhibition will not open on Sundays.,1.Where shall we spend the holiday isnt decided.,2.Your have made a mistake is a fact.,3.That is certain that we can win.,4.No matter who leaves the room last ought to turn off the lights.,5.It is important that a student learns a foreign language.,we shall,That you have,It is,Whoever,should learn,改错练习,Ex. on P29 (ExbooKA),5) . 用于It is important / natural / necessary / impossible that.句型中, 主语从句应使用虚拟语气, 谓语动词用“should + 动词原形”的形式, should有时有感情色彩。,1. _ you dont like him is none of my business. 2. _ he said at the meeting astonished everybody present 3. _ the 2000 Olympic Games will be held in Beijing is not known yet. 4. _ well go camping tomorrow depends on the weather. 5. _ leaves the room last ought to turn off the lights.,That,What,Whether,Whether,Whoever,6. _ is a fact that English is being accepted as an international language. 7.It worried her a bit _ her hair was turning grey. 8. The Foreign Minister said, “_ is our hope that the two sides will work towards peace.” 9. After Yang Liwei succeeded in circling the earth, _ our astronauts desire to do is walk in space.,It,that,It,what,Pair work: Please use the Subject Clause to describe your mother with your partner. Suggested structures: What my mother likes is _. What my mother doesnt like is _. Why my mother would be happy is _. Who my mother goes to the supermarket with is_. How my mother cooks the dinner is_. ,Homework,1.Finish Ex(2.4.5); Ex on P 27.28 (exercise book A). 2.Finish the exercises on the paper. 3. Preview “ A visit to the moon”P30 4. 听写 “planet” to “disappointed”,