人教新课标必修三Unit4AstronomyGrammar.pptx

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,标,展,示,目,1.,了解并掌握主语从句的相关概念,2.,完成与主语从句相关的练习,3.,重点：,It,做形式主语的各种句式及虚拟语气的使用。,4.,难点：引导主语从句的连接词的使用。,目标展示,身,导,入,热,找出下列各句的相似之处,What he did is surprising.,2.That we go swimming every day does us a lot of good.,3.When well finish translating the book depends on the time.,4.Whoever makes mistakes must correct them.,热身导入,主,学,习,自,主,Turn to page 53 in your workbook and see note 1,，,2.,学习任务,：,1.,了解主语从句的定义,2.,掌握引导主语从句的连接词的用法。,自主学习,定义：,用作主语的从句叫主语从句，它是名词性从句之一。,引导主语从句的连接词,有：,连词,that,whether,；,连接代词,who,what,和,which,；,连接副词,when,where,how,和,why.,自主学习,Continue to look at note 3.,1.,连词,that,，,whether,在主语从句中做成分吗？,2.,连词,if,能引导主语从句吗？,3.,连接代词,who,what,和,which,在主语从句中能做什么成分？,4.,连接副词,when,where,how,和,why,在主语从句中能做什么成分？,自主学习,if,可以引导主语从句,但不能用于句首,而应该放在句尾,用,it,做形式主语,.,whether,与,If,做“是否”讲引导名词从句,区别如下,:If,1.,不能用在句首,2.,不能引导主,表,同从句,3.,可以引导宾语从句,但不用在介词之后,自主学习,知识小结,连接代词，也称疑问代词。一共九个,包括：,who,whom,whose,what,which,whoever,whomever,whatever,，,whichever,代词相当于名词，因此，连接代词在主语从句中可做主宾表同。,自主学习,知识小结,作,探,究,合,1.,他们是否卖掉这所房子还没有决定。,_,they will sell the house is not yet decided.,这里能用,if,代替,whether,吗？为什么？,if,可以引导主语从句,但不能用于句首,而应,放在句尾,用,it,做形式主语,.,汉译英,合作探究,2.,凡是这里说的话都应当保密。,_,was said here must be kept secret.,3.,凡犯了错误的人都必须改正。,_,makes mistakes must correct them.,问题：,1.whenever/wherever,能引导主语从句吗？,合作探究,4.,老师今天说的话是十分正确的。,_,the teacher said today was quite right.,5.,他们急需帮助，这是十分明显的。,_,they are badly in need of help is quite clear.,汉译英,合作探究,引导主语从句时，什么情况下用,that,，什么情况下用,what,？,小提示：,由连词,that,引起的主语从句,这类句子在大多数情况下会放到整个句子的后部去，而,用代词,it,作形式主语,。,合作探究,主,学,习,自,主,Continue to look at note 4,1)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,自主学习,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,自主学习,Continue to look at 5,特殊强调,:,用于,It is+important/natural/necessary/impossible/,或表示建议要求命令的词的过去分词,+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。,自主学习,馈,练,习,反,1._ he said at the meeting astonished everybody present.,2._ the 2000 Olympic Games will be held in Beijing is not known yet.,3._ well go camping tomorrow depends on the weather.,4._ leaves the room last ought to turn off the lights.,What,Whether,Whether,Whoever,反馈练习,6._ is a fact that English is being accepted as an international language7.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 walking in space.,It,that,It,what,反馈练习,击,高,考,直,1.The other day,my brother drove his car down the street at _ I thought was a dangerous speed.(2004,上海 春,38),A.as B.which C.what D.that,解析,:I thought,是插入语,可以把它去掉不考虑,.what,引导宾语从句,在从句中作主语,.,宾语从句作,at,的宾语,.,直击高考,2.,_ in the,regulations,that you,should not tell,other people the,password,of your email,account,.,（,2005,上海,-38,）,A.What is required B.What requires C.It is required D.It requires,解析,:“It is required that”,是一个固定句式，,it,作形式主语,that,引导的从句为真正的主语。,直击高考,3._ the 2000 Olympic Games will be held in Beijing is not known yet.,高考真题,A.Whenever B.If C.Whether D.That,答案是,C,。“,2000,年奥林匹克运动会是否在北京举行还不知道。”,直击高考,4._ he said at the meeting astonished everybody,present,.,高考真题,A.What B.That C.Which D.Whether,答案是,A,。“他在会上的发言使到会的每一个人都感到惊讶”,what,表示“,(,所说的话,)”,相当于,The words(that+/which)he said at the meeting,直击高考,5._ he has become a rich man,is known to all,in our town.,高考真题,A.Because B.That C./D.What,答案是,B,。“他变成了富翁,这是我们镇上下班人人皆知的事。”根据句意,须用,that,引导的主语从句。,that,在从句中不担任任何成分,只起连接作用,.,That,引导主语从句的时候不可省略。,直击高考,堂,小,结,noodles,课,Sum up the key points by yourselves.,课堂小结,置,作,业,布,Homework,1.Find out as many subject clause as possible in your text book.,2.Finish all the exercise in your work book.,布置作业,