1、Unit 4 Astronomy：the science of the starsLearning about Language1Put these words into the more suitable one of the two boxes.Ex.3 P28energetic violent gentle patient angry cruel terrible calm relaxing shocked harmful kind friendly jealous2 fierce words peaceful wordsenergeticviolentangrycruelterribl
2、eshockedharmfuljealousgentlepatientcalmrelaxingkindfriendly3Review the passage“How life began on the earth”and translate the following sentences.1.谁也不知道地球会有别于其他行星。2.这就是地球独有特性的初次显现。Nobody knew that it was going to be different from other planets.This is how the earth began to show its special qualiti
3、es.43.许多人认为这对生命的起源特别重要。4.没有人懂得这些植物就是许多变化的开始。Many people think that this was important for the beginning of life.Nobody understood that these plants were the starts of many changes.5GrammarWhat part does the underlined part serve as in each sentence?A tree has fallen across the road.You are a student
4、.To find your way can be a problem.Smoking is bad for you.6“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 from these sentences see that a sentence serves assubject,so we call it Subject Clause.7Subject Clauses主语
5、从句81.主语从句：从句在句中充当主语成分1)That he will succeed is certain.2)Whether he will go there is not known.3)How we can help the twins will be discussed at themeeting.92 引导主语从句的连接词有三类：(1)连词that、whether ：Whether we go by train or by boat makes no difference.Whether hell come here isnt clear.That price will go up
6、 is certain.10What she did is not yet known.Who will write the poem has not been decided yet.Whatever he did is right.(2)连接代词who,whom,whose,what,which,whoever,whatever,whichever等。113)连接副词 where,when,how,why等。How this happened is not clear to anyone.When he will be back depends on the weather.How the
7、 pyramids were built is still a mystery.123.主语从句后置为了避免主语冗长,句子头重脚轻,经常用it作形式主语,主语从句放在后面作真正的主语。例:1.That we shall be late is certain.2.That the earth is round is known to all.3.That you missed the chance is a pity.It is a pity that you missed the chance.Its known to all that the earth is round.Its certa
8、in that we shall be late.13A.It+be+形容词(obvious,true,natural,surprising,good,wonderful,funny,possible,likely,certain,probable,etc.)+that从句。如：It is certain that she will do well in her exam.B.It+be+名词词组(no wonder,an honour,a good thing,a pity,no surprise,etc.)+that从句。如：Its a pity that we cant go.4.用it
9、 作形式主语的结构14C.It+be+过去分词(said,reported,thought,expected,decided,announced,arranged,etc.)+that从句。如：It is said that Mr.Green has arrived in Beijing.D.It+seems,happens等不及物动词及短语+that从句。如：It happened that I was out that day.E.It+doesnt matter(makes no difference,etc.)+连接代词或连接副词引起的主语从句。如：It doesnt matter w
10、hether she will come or not.151.What you left are only several old books.2.What you said is of great importance.3.Whether hell come here is not clear.1.“if”不能引导主语从句，应用“whether”引导。3.主语从句的“that”一般不能省。4.“what”引导主语从句时，谓语动词：1）常与其后作表语的名词一致 2）根据句子的语境而定。5.主语从句需注意的问题2.主语从句中用陈述语序。161.Where shall we spend the
11、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 shallThat you haveIt isWhoevershould learn改错练习【达标训练】171._ he made an important s
12、peech at the meeting wastrue.A.That B.Why C.What D.How 2._well go camping tomorrow depends on the weather.A.If B.Whether C.That D.Where 3._ is known to us all is that America is a developed country _ the First World.A.Which;belong to B.As,belonged to C.What;belonging to D.It;belonging to单项选择ABC184.I
13、ts known to us all _ a form of energy.A.water is B.that water is C.is water D.that water to 5.It worried her a bit _ her hair was turning gray.A.whether B.that C.what D.when6.What I say and think _ none of your business.A.is B.are C.has D haveBBA19BCB7._ we need more practice is obvious.A.What B.Tha
14、t C.When D./8._ they can solve the question is still unknown.A.If B.Which C.Whether D.What 9._ he said at the meeting astonished everybody.A.Why B.What C.That D.Who20DB10._ is a fact that English is accepted as an international language.A.There B.This C.That D.It11._ made the school proud was_ more
15、than 90 of the students had been admitted to key universities.A.What;because B.What;thatC.That;what D.That;because21BB12._ we will go camping tomorrow depends on the weather.A.If B.Whether C.That D.Where13._ that they can pass the written exam this time.A.That is hoped B.It is hoped C.It hopes D.That hopes22C14.It was doubtful _ Mary really heard him.A.that B.if C.whether D.what23Homework1.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”on P304.听写“planet”to“disappointed”.24Light come,light go.来得容易，去得快。25
