名词性从句_语法讲解教学.ppt

名词性从句;1.When we will start is not clear. 2.Mrs Black won’t believe that her son has become a thief. 3. My idea is that we should do it right now. 4.I had no idea that you were her friend.;在英语的句子结构中，本来该由名词充当的主语、宾语、表语和同位语，由一个句子来充当,这个句子就叫名词性从句。 ;;;2).连接代词: who, whom, whose, what, which, whoever, whatever, whichever;3).连接副词: when, where, why, how, how many, how much ,how long, how soon, how often ;3).whether可以引导主语从句 解释为”是否”,但if不能.;单个的主语从句作主语时，谓语动词用单数形式。如果是两个或两个以上的主语从句作主语，谓语动词则用复数形式。 ;注意:在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气 “ should +do”，常用的句型有：; 1. ____? we cant get seems better than ____?we have. A.What , what B. What , that C. That , that? D. That , what ;3.What the doctors really doubt is _______ my mother will recover from the serious disease soon． A．when B．how C．whether D．why ;;总结:;;1.He has made ______clear ____he will not give in . 2.We’ll see to ____ ______she gets home early . 3.I hate\dislike _______when someone smokes in the office. 4.I’ll appreciate _______ if you come to our party. 5.They took_____ for granted _______ you knew the fact.;只能用whether不能用if的情况;3.当与or not连用，或提出两种选择 时: I don’t know whether he’s free or not. Mary asked whether I was doing my homework or not. Tell me whether you’d like to go shopping or tidy the room. 4.宾语从句提前时： Whether this is true , I can’t say.;5.在动词discuss后的宾语从句中: We discussed whether we would have a sports meeting next week. 6.引导表语从句、同位语从句、主语从句用whether： Whether he is right or wrong is a question. The question was whether he went there last night.;(4)用if不用whether的情况:;what 的 灵活使用 1.He is ____ is called superman A. the person B. who C. what D. that ;1.I understand _______(all ______ )you said. 2.I can’t believe _______ is reported. 3.A car passed me at ____I thought was a dangerous speed. 4.The building will be built in _____ was a wasteland before.;;;1.This is _______our problem lies. 2.Tomorrow is _____ it would be th