Unit 2 Grammar and usageppt课件-（2020）新牛津译林版高中英语选择性必修第三册.pptx

1、a noun, noun phrase or pronoun representing the person or thing that performs the action of the verbabout which sth is stated in a passive sentence, that is affected by the action of the verbI sat down.The house is very old.The tree was blown down in the storm.1. David arrived last night. 2. Who is

2、speaking, please? 3. Two will be enough. 4. Looking up all the new words in the dictionary took him a lot of time. 5. To translate this ideal into reality needs hard work.6. How to do well is an important question. 7. What has happened proves that our policy is right. Below is a newspaper feature ar

3、ticle on the use of telescopes to explore space. Find the sentences with subject clauses.( ) ( ) ( ) ( )1. That Hubble is based in space allows it to see further than ground-based telescopes, 2. Whether life on other planets does exist is yet to be proved, but the signs are promising.3. It is clear

4、that telescopes are crucial tools for space exploration and that developing the required technology will help astronomers all over the world make exciting discoveries.4. How much we will learn from the telescopes is merely limited by our imagination. that whetherit在在复合句复合句中，如中，如作主语的是一个从作主语的是一个从句句，该从

5、句被称为，该从句被称为主语从句主语从句。主语主语从句必须用从句必须用陈述语序陈述语序。_ the earth moves around the sun is well known._ he will come or not is not known yet.Its uncertain _ hell come this evening.1. that 2. whether/if连词连词that 不充当句子成分，无意义，只起连接作用，不充当句子成分，无意义，只起连接作用，不能省略不能省略ThatWhether whether/if用用不用不用 的情况：的情况：1._well go camping

6、tomorrow depends on the weather. It makes no difference _ you will go today or tomorrow.2. _ or not he will come still remains a question._well succeed remains to be seen.1.1.主语从句主语从句时；时；位于句首位于句首2.2.从句后有从句后有或紧跟或紧跟时时oror notWhetherWhetherWhetherwhether_will be sent there has not been decided. _you ne

7、ed is more practice._one is the best is not clear._ comes first will get a free book._ he did was right._ team gains the most points wins. 连接代词连接代词WhoWhatWhichWhoeverWhateverWhicheverwho，what， which，whoever, whatever, whichever_they will come hasnt been made public. _he has gone is a question._there

8、 is gravity is hard to understand._ he can earn a living in Britainremains a big problem.1. when, where, why, how连接副词连接副词WhenWhereWhyHow_ he didnt attend the meeting wasnt clear.连接代词连接代词和和连接副词连接副词在句中在句中既保留自己的疑问含义、既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分又起连接作用，在从句中充当从句的成分。_ the plane will take off has not been

9、announced._ will come to teach us is not known._ hurt my feelings was the judges comment.WhoWhat WhyWhen What we need are more books. Who won the match is still unknown.主语从句后的谓语动词一般用主语从句后的谓语动词一般用单数形式单数形式。 What she lacks is experience.what引导的从句作主语时，引导的从句作主语时，谓语动词的数由后面的表语决定谓语动词的数由后面的表语决定。 What you sai

10、d is perfectly true. certain clear important necessary probable possible主语从句常用主语从句常用it作作形式主语形式主语放放句首句首,从句从句为为真正的主语真正的主语，放在，放在句句末末，使句子更平衡。，使句子更平衡。常用句型有：常用句型有：It is/was+that clause1. It+be+形容词形容词+that从句从句 It is certain that she will do well in her exam.可以肯定的是，她会在考试中做得很好。可以肯定的是，她会在考试中做得很好。 It is probab

11、le that he told me everything.他可能把一切都告诉我了。他可能把一切都告诉我了。 It is natural that they should have different views.他们有不同观点是很自然的。他们有不同观点是很自然的。 It is strange that he knows nothing about it.很奇怪他对此竟一无所知。很奇怪他对此竟一无所知。2. It + be + 名词词组名词词组 + that从句从句 pity shame duty It is a pity that he missed such a good chance.I

12、t is / was a+ that clause It is a shame that youre sick. 很遗憾他错过了这么好的机会。很遗憾他错过了这么好的机会。真遗憾你病了。真遗憾你病了。3. It + be + V-ed + that从句从句 said reported thought hoped believed known It is+ that clause It is said that he is the best student in the class. It is thought that Joe drives badly.据说他是班上最好的学生。据说他是班上最好的

13、学生。人们认为乔开车开得不好。人们认为乔开车开得不好。 It seems that Alice is not coming to the party at all. It happened that I was out that day. It appears to me that you dont want to come to the party. 4. It + seem, happen, appear等不及物动词等不及物动词 + that从句。从句。爱丽丝似乎根本不会来参加晚会。爱丽丝似乎根本不会来参加晚会。碰巧我那天外出了。碰巧我那天外出了。在我看来，你不想来参加聚会。在我看来，你不

14、想来参加聚会。I. 用适当的连接词填空。用适当的连接词填空。1. _ struck me most in the movie was the fathers deep love for his son.2. _ he will refuse the offer is unlikely.3. _ well go camping tomorrow or not depends on the weather. 4. _ the ancient Egyptians built the Pyramids puzzled people for centuries.5. It is not yet clea

15、r _ broke the window of the classroom.6. _ he will come back from France is unknown, and I will check the time.7. It is possible _ Bob will be present at the meeting tomorrow.8. _ team will win the game is difficult to predict.WhatThatWhetherHowwhoWhenthatWhichII. 根据汉语意思，完成下列句子。根据汉语意思，完成下列句子。1. 无论谁最

16、后离开房间，都应该把灯关掉。无论谁最后离开房间，都应该把灯关掉。 _ ought to turn off the lights.2. 他昨天为什么来这里是个秘密。他昨天为什么来这里是个秘密。_ is a secret.3. 我们不知道杰克什么时候能完成这本书的翻译。我们不知道杰克什么时候能完成这本书的翻译。 _ is unknown to us.4. 飞机何时起飞还没有宣布。飞机何时起飞还没有宣布。 _ when the plane is to take off.5. 你不喜欢他不关我的事。你不喜欢他不关我的事。 6. 很遗憾你不能参加我的生日聚会。很遗憾你不能参加我的生日聚会。 _ you

17、cant attend my birthday party.Whoever leaves the room lastWhy he came here yesterdayWhen Jack will finish translating the bookIt has not been announcedThat you dont like himIt is a pity that1. The space mission went so well was beyond our expectations.2. Whether they are able to grow more vegetables

18、 in space depend on how much time it takes.3. It was not clear how long he will stay on the space station.4. What the lunar probe did not land was a worry for the people back on the Earth.5. That makes the Chinese people happy is that China has successfully launched a space rocket.Circle the mistake

19、s and correct them in the blanks.That the dependswas改为改为is 或或 will改为改为would That What The passage below is about the Chinese Lunar Exploration Program. Complete the passage with the correct subject clauses in the box below. There is one clause you do NOT need to use. Write the letters in the blanks.

20、Check your answers!P21 B2ebacWrite down your prediction about the development of space exploration, using subject clauses.Possible answer: It is clear that many exciting things will happen in the development of space exploration in the future . I think manned space missions to Mars will happen in my

21、 lifetime and a permanent base on Mars will also be established . Hopefully , new energy sources will be developed , which will make space flight cheaper and faster. But how soon and how far we advance in developing the required technology to do so depends on the collaboration between the many count

22、ries around the world . It is possible that the technology will be available before 2040 and I am looking forward to that.2.引导主语从句的词有：引导主语从句的词有： 连词连词_, _; 连接代词连接代词_, _, _, _,_, _; 连接副词连接副词_, _, _, _等。等。3.主语从句常用主语从句常用_作形式主语放句首作形式主语放句首,从句为从句为_，放在句末。放在句末。1.主语从句在复合句中作句子的主语从句在复合句中作句子的_。主语主语thatwhetherwhowhatwhichwhenwherehowwhywhoeverwhateverit真正的主语真正的主语whicheverFinish the exercises of the Grammar part in KKL.