主语从句公开课

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,*,*,Astronomy:,the science of the stars,-grammar,Unit 4,Subject,Task,1:,找出下列句子的主语。,1.A tree has fallen across the road.,2.You are a student.,3.To find your way can be a problem.,4.What she said is not yet known.,5.That we shall be late is certain.,在复合句中充当主语的从句，叫做主语从句。,Subject Clause,主语从句,Task,2:,找出下列句子的主语。,1.That he will come is certain.,2.Whether he would support us was unknown.,3.What he says is not important.,4.Who will take part in the meeting has not been decided.,5.Which side will win is not clear.,Subject Clause,主语从句,一般来说主语从句都是放在,。,句首,6.Whose watch was lost is unknown.,7.Why he did it remains a mystery.,8.When they will start is not known yet.,9.How he became a great scientist is known to us all.,10.Where she has gone is not known yet.,思考：主语从句有哪些连接词？这些连接词是否充当成分？有无意义？,从属连词：,连接代词：,连接副词：,that,、,whether,what,、,who,、,which,、,whose,when,、,where,、,why,、,how,whatever,、,whoever,、,whichever,从属连词,：,that,引导主语从句只起引导作用，本身,无,实际意义，在主语从句中不充当任何成分，但,不可,省略,。,whether,引导主语从句，本身有实际意义，是否的意思，在主语从句中不充当 任何成分,连接词,：,how,wh-,引导主语从句，本身有实际意义，在主语从句中充当句子成分。,主语从句中缺状语用,连接副词,:when,、,where,、,why,、,how,主语从句中缺主语，宾语，表语，定语用,连接代词,：,what,、,who,、,which,、,whose,等,Task3:,用合适的连接词填空。,1._ team will win the match is still unknown.,2._ we need is more time.,3._the earth is a solid ball is known to us all.,4._the meeting will be held next week hasnt been decided yet.,5._the plan will be carried out is unknown.,Which,What,That,Whether,Where,/,Whether,/,When,6._we can arrive at the airport before 8 oclock is still a question.,思考：怎样确定连接词？,Step1:,找主语从句,Step2:,分析主语从句缺不缺成分,Step3:,翻译整个句子，结合意思,Whether,/,How,Task4,根据下列句子中的错误，总结注意事项。,1.When,will he,come is not known.,he will,总结,:,2.,He,will not come to the meeting this evening,That he,is true.,总结,:,主语从句要用,陈述语序,。,that,引导主语从句位于句首,不可省略,。,3.,If,the meeting will be put off has not been decided yet.,Whether,总结,:,4.When he will come,are,a puzzle.,is,When well hold the meeting and where well hold it,has,not been decided.,have,总结,:,if,和,whether,均可表示“是否”，但在,引导位于句首的主语从句时，只能选用,whether,不能用,if,。,单个从句做主语，谓语动词用单数；两个或两个以上从句做主语，谓语用复数。,注意,1,：,What he needs,is,that book.(be),What he needs,are,some books.(be),总结：,What,引导主语从句时，谓语动词,be,与做表语的名词单复数一致。,注意,2.,That we should work hard at school is important.,Its important that we should work hard at school.,总结,：,在主从复合句中，如果主语从句太长，为了避免句子结构头重脚轻,经常用,_,作形式主语,而把主语从句放在主句的谓语动词之后。,it,Ex:,改写下列句子。,1).That he didnt come is a pity.,2).When the plane is to take off hasnt been announced.,3).That we are late is obvious.,It is a pity that he didnt come.,It hasnt been announced when the plane is to take off.,It is obvious that we are late.,Ex1:,单句改错。,1.That is certain that we can win.,2.You have made a mistake is a fact.,3.Where shall we spend the holiday isnt decided.,It,we shall,That,4.Whether we will go for an outing tomorrow remain unknown.,5.How caused the accident is still a mystery.,remains,What,Ex2.,完成句子。,1._(,谁会赢得比赛,)is unknown.,2._(,我们得不到的,)seems better than what we have.,3._(,我在哪里过暑假,)is none of your business.,4.It is a pity_(,你错过了班车,).,Who will win the game,What we cant get,Where I spend my summer holiday,that you missed the bus,5.It is reported _,_,(,很多人把英语作为第一或第二语言,),。,6._(,更重要的是,)is that we must form a good habit of learning English.,7.,很显然她在说谎。,_,8,熟能生巧是有道理的。,_,that many people consider,English as the first or second language.,What is more important,It is obvious that she is telling lies.,That practice makes perfect is right.,Discussion,Since you entered high school,you must have met with some problems in your study or life.One can talk about the problems.The others can give some advice.Try to use the following structures:,The difficulty is.what I find difficult is.,The trouble is.what worries me is.,My advice is.what I would advise is.,I think that.what I think is.,I want to tell you that.what I want to say is.,【自我评价】,1,是否能正确无误地找出主语从句？,能,_,否,_,2,是否能选出正确的引导词？,能,_,否,_,3,是否掌握了主语从句的易错点？,能,_,否,_,4,是否能用主语从句正确交流？,能,_,否,_,Homework:,根据表格内容，以,How to learn English well?,为题写一篇短文，可以自由发挥，在短文中尽可能运用主语从句。,