1、名词性从句名词性从句-表语从句表语从句 名词性从句名词性从句 noun clause 主语从句主语从句subject clause 宾语从句宾语从句object clause 表语从句表语从句predicative clause 同位语从句同位语从句appositive clause1.表语从句的定义表语从句的定义The question is who will do it.复合句复合句The question is difficult.简单句简单句(表表)表语从句表语从句(表表)2.表语从句的构成表语从句的构成This is why he did it.主语主语 系动词系动词 表语从句表语从
2、句 结构是结构是“主语主语+系动词系动词+表语从句表语从句”。系系动词动词:表示状:表示状态态的的连连系系动词动词有有:be;appear;seem;keep;remain;continue;stay;prove 表示感表示感觉觉的的连连系系动词动词有有:look;feel;smell;sound;taste 等等表示表示转变转变的的连连系系动词动词有有:become;fall;get;go;grow;turn 等等连接词:连接词:that/whether/as if/as though连接代词:连接代词:who/whom/whose/which/what 连接副词:连接副词:when/whe
3、re/why/how/because 引导词的用法(一)引导词的用法(一)that在表语从句中在表语从句中 ,又又 。The fact is that he hasnt yet recover from illness.The reason why he has to go is that his mother is ill in bed.既不充当成分也不能省略whether在表语从句中表在表语从句中表 ,但不充当句但不充当句子的成分。子的成分。if 引导表语从句引导表语从句.如如:1.The question is whether it is worth doing.“是否是否”不能不能引导
4、词的用法(二)引导词的用法(二)what 在表语从句中充当在表语从句中充当_ 表表示示_.1.The question is what caused the accident.2.That mountain is no longer what it used to be.3.What he told you was what we had discussed at the meeting.主语、宾语或表语什么,什么样子,或所什么,什么样子,或所的(人或事)的(人或事)引导词的用法(三)引导词的用法(三)who 在表语从句中充在表语从句中充当当_表示表示_ _.1.The problem is
5、who could do the work.2.My trouble is who(whom)I can turn to.主语、宾语或表语主语、宾语或表语谁谁引导词的用法(四)引导词的用法(四)which 在引导表语从句时在引导表语从句时,常充常充当当_ 表示表示 。如如:I read about it in some book or another,but what I dont know is which(book)it is.定语定语,表语表语其中哪一个其中哪一个引导词的用法(五)引导词的用法(五)由由as if,as though引导表语从句,表示引导表语从句,表示好好像像。句子中的系
6、动词常用。句子中的系动词常用look,appear,seem等。等。1.It looks as if it is going to rain.引导词的用法(六)引导词的用法(六)1.The reason why I was late was that I missed the train.引导词的用法(七)引导词的用法(七)当表语从句句子完整,常常用当表语从句句子完整,常常用why,when,where,how等引导等引导This is how he did it.That is why the brothers wanted to make a bet.Thats why weve give
7、n you the letter.引导词的用法(八)引导词的用法(八)表语从句引导词注意事项表语从句引导词注意事项1.1.thatthat引导表语从句时不能引导表语从句时不能省省.2.2.ifif不能引导表语从不能引导表语从句句.3.3.除除thatthat外的所有引导词都有自己的意外的所有引导词都有自己的意义。义。1.Im afraid hes more of a talker than a doer,which is _ he never finishes anything.A.that B.when C.where D.why验收练习题2.-I prefer shutting mysel
8、f in and listening to music all day on Sundays.-Thats _ I dont agree.You should have a more active life.A.where B.how C.when D.what3.-Hi,Peter.You seem to have gained a lot of weight.-Well,good food,not enough exercise.That is _ I got fat.A.how B.when C.what D.whether验收练习题4.Id like to start my own b
9、usiness-thats _ Id do if I had the money.A.why B.when C.which D.what5.When the Internet was created in 1969,only a few people knew about it.Thats _ it came into existence as a secret US government project.A.when B.why C.how D.because验收练习题6.The last time we had great fun was _ we were visiting the Wa
10、ter Park.A.where B.how C.when D.why7.Thats _ the Party called on us to do.A.why B.what C.how D.that 验收练习题8.The reason is _ he is unable to operate the machine.A.because B.why C.that D.whether9.That is _ they separated.A.that B.what C.which D.where 10.Jane is no longer _ she was four years ago.A.what B.which C.that D.when






