同位语从句课件-2023届高三英语三轮冲刺

同位语从句 appositive clause whether与if的辨用 表“是否”时，在下列情况下用whether。 a. 主语从句放在开头 b. 表语从句 c. 同位语从句 D. 介词后的宾语从句 E.后接动词不定式 (whether to do sth.) F .whether or not 连在一起引导宾语从句时不用if 1).whether和if都可以引导宾语从句 a.当whether后紧跟or not时,不用if. eg: I don’t know whether or not I will stay. b.介词后面的宾语从句不能用if. eg: I worry about whether I hurt her feeling. 2.注意 whether和if的使用区别 3 Practice time if / whether 1. I asked her __________ she had a bike. 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. 8. I don’t know _______ to go. if / whether whether whether /if whether whether I doubt if / whether he will pass the exam. I don’t doubt that we will win the match. Do you doubt that he did it on his own? doubt问题 肯定句中用 if / whether 否定句中用 that 疑定句中用 that I doubt _________he is telling the truth. We never doubt _________ the plan will be carried out . Does he doubt _________ you are from Austria? I’m doubtful _________ he will agree to this. if / whether that that if / whether We think that middle school students master one foreign language possible . (改用形式宾语 it ) 2. We have made that a foreign language is useful weapon in the struggle of life clear. (改用形式宾语 it ) 我认为学好英语是必要的. I consider that we should learn English well necessary. We consider her suitable for the job. 宾语 宾补 consider find think feel make 等动词常带宾语补足语,这时要用形式宾语 it ,宾语从句放到宾补之后 We think it possible that middle school students master one foreign language. We have made it clear that a foreign language is useful weapon in the struggle of life. More I consider it necessary that we should learn English well it不能漏 从句后移 同位语从句 被修饰词有: fact, news, hope, opinion, order, question, problem, belief, truth, theory, decision, discovery, conclusion, promise, rumor, fear, thought, suggestion, plan, idea… 同位语从句说明它们的内容 常见引导词: that , whether ( if ), how, wh- 疑问词 The fact that deeds are bette