名词性从句_语法讲解好.pptVIP

名词性从句 主语从句 在复合句中作主句的主语. 引导词有连词that (that 不可省略), whether; 连接代词有who, what ,which; 连接副词 when ,where, how, why 等.如: 只能用whether不能用if的情况 1.在介词后面： I’m thinking of whether we should go fishing. We didn’t think about whether it would rain the next day. 2.在动词不定式前： They asked me whether to sit at the front. 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 or not, 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Appositive clause,或位于句首的主语从句用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: 1.引导否定概念的宾语从句时： He asked me if I hadn’t finished my homework. 2.引导条件状语从句，if意为“如果”时: We’ll go hiking if it doesn’t rain tomorrow. if / whether1. I asked her __________ she had a bike.2.______ we will hold a party in the open air  tomorrow depends on the weather.3. We’re worried about ________ he is safe.4. I don’t know ___________ he is well or not.5. I don’t know ________ or not he is well.6. The question is _______ he should do it.7.The doctor can hardly answer the question ________ the old man will recover soon.8. I don’t know _______ to go. 9.______ you are not free tomorrow, I’ll go without you. what 的 灵活使用 1.He is ____ is called superman A. the person B. who C. what D. that 注意where 引导的表语,状语，定语从句的区别 1. The reason ______________he was late is ____his mother was ill. 2. The reason ___________ he gave me (explained to me) is acceptable. 1、He said we should finish the work today, and this is _______I disagree. 2、You always give him whatever he wants. That’s_______ you are wrong. 3、---What’s that building? ---That’s _______sports equipment is stored. 4、That’s the place __________ the sports equipment is stored where where where where/in which 1.A buil