人教新课标英语必修三课件 Unit 4 Astronomy：the science of the stars Grammar课件(共17张PPT)

课件17张PPT。1Book Ⅲ
Unit 4Astronomy: the science of the stars– Grammar
Everyday EnglishHang in there, everything will be fine. 坚持住，一切都会好起来的！ The Foreign Minister said, “____ our hope that the two sides will work towards peace.” A. This is B. There is
C. That is D. It is DGrammar3. To find your way can be a problem. 2. Smoking is bad for you.1. You are a student.4. “How do you do?” is a greeting.5 .What she said is not yet known.6. That we shall be late is certain.7. It is certain that we shall be late.Subject（主语）A sentence serving as subject is called Subject Clause.一主语从句的连接词1. that 只起引导作用，本身无实际意义，不充当任何成分，但不能省略。That she left him made him heart-broken.
That he is still alive is a good news to us.
我们保持平衡饮食有益健康。That we keep a balanced diet is good for our health.2.置于句首只能用whether “是否”，不充当从句的任何成分。他是否会回来是显而易见的
______________________________ is clear.
______________________________(他能否买到飞机票) doesn’t matter much.Whether he can buy the plane ticketsWhether he’ll be back3 wh-疑问词包含意思，并在从句中充当成分。_____ she will be back is still a question.
_____ you told me just now was really a surprise.
_____ we will hold the basketball game tomorrow is not important.
_____ class will win the football game is not clear.
_____ will meet him is not decided.WhenWhatWhereWhich Who3 wh-疑问词包含意思，并在从句中充当成分。________ breaks the law should be punished.
________ has helped to save the drowning girl is worth praising.
________ tells lies is wrong．WhoeverWhoeverWhoever1)_____ you said yesterday is right.
2)_____ she is still alive is a consolation（安慰）.
3)_____ he lost the bike worried him a lot.What
That
That what 与 that在引导主语从句时的区别what 在从句中充当句子成分，如主语、宾语、表语，而that 则不然。 二. it 做形式主语
为了防止句子头重脚轻，通常把形式主语it放在主语位置，真正主语搁置于句末。1）It + be + 名词/形容词 +主语从句It is very likely that they will hold a meeting.It is important that we all should attend the meeting.It is still a mystery what caused the accident.Exx: 很肯定他会赢得比赛的。
________________ that he will win the match.
It is a fact that _____________(地球绕着太阳转)It is certainthe earth goes
around the sun2）It+不及物动词(seem, happen, matter)+主语从句It seems that he has seen the film.
似乎…
It happened that they were absent.
碰巧…3）It＋过去分词＋从句 It is said that President Obama will visit our school next week. 据说… It is decided that… 据决定
It is believed that… 据认为/人们认为It is known to all that Li Hua is the best student in our class. 众所周知…1. This is natural that they should like each other.
2. It is true he has made a very important discovery in chemistry.
3. It doesn’t matter that he is wrong or not.
4. It is know to all that Lu Xun is a famous author. True or False It that
∨Whatever he says is of no importance. Whoever says this is wrong． 但谓语动词用单数还是复数，不可一概而论，而要视句子的意义而定
What I need is money.
What I need are books.三.在主语从句中，谓语一般用单数。When and where we’ll hold the meeting _____
not been decided yet.
A. has B. is C. have D. arePRACTICE1.（2013.北京高考）_____makes the book so extraordinary is the creative imagination of the writer.
A.That B.What C.Who D.Which
2._______some mammals came to live in the sea is not unknown.
A.Which B.Since C.Although D.How3.________she had forgotten her note book.
A.That occurred t her B.She occurred that
C.To her that occurredD.It occurred to her that
4._______all the pupils in the school felt the same effect of small classes remained to be researched.
A.That B.Whether C.What D.If
5.________ of us gets home first starts cooking.
A.Who B. Which C.Whichever D.Anyone