【正文】 其他特殊情況： it在名詞性從句中作形式主語或形式賓語的用法 例 1. I hate _____when people talk with their mouths full. ? it B. that C. this D. them 例 2. Does _______ matter if he can39。 why because 同位語從句的引導詞除了 that，還有哪些？ 1. The idea that we invited him yesterday is quite good. 2. I have no idea when he will go to Beijing. 3. The question whether we will go to see the film next Monday hasn’t been settled. 同位語從句一般由 that引導，也可以有其他引導詞，如 whether, when ,where, how等引導詞 (但是不可以用 if), 這時同位語的名詞往往是 idea, question, doubt等。 because 與 why引導名詞性從句的區(qū)別 What he couldn’t understand was _____fewer and fewer students showed interest in his lessons. ? He was late for school and that was ________ he was ill. because 引導的表語從句說明前面的一個現(xiàn)象所產(chǎn)生的理由。 ? What he picked up______ some books. ? What he picked up ______ a book. are is 主語從句中的主謂一致 ? Where and when he was born has not been found. ? When the person was murdered and why he was murdered are still unknown. ? That the earth goes round the sun is wellknown to everybody. 單個的主語從句作主語時，謂語動詞用 單數(shù) 形式。 _____________是名詞性從句，是對前面名詞作進一步的補充性解釋說明。而 no matter wh只能引導讓步狀語從句。 that that what ☆ He is a good student except that he is a little bit careless. ☆ I have known the news that he will e here tomorrow. ☆ That he will succeed is certain. 關于 that 的省略 ☆ He said that the meeting was very important and that we should take part in it. ☆ I think it necessary that we should increase our awareness of environmental protection . whether amp。 固定句型 ★ Tomorrow is Tom’s birthday. Have you got any idea ________? [2022 高考陜西卷 ] A. where is the party to be held B. where the party is to be held C. if a party is to be held D. whether is a party to be held ______________. 語序 陳述語序 ___________是連詞，在名詞性從句中不充當任何成分，而 ____________是連接代詞，在名詞性從句中充當成分，通常充當主語，賓語，表語。 8. 主語從句中的主謂一致。 ________ we shall hold our sports meeting is not decided. When 這就是我忘記眼鏡的地方。 I don’t know what class he is in. There are 20 classes in our school. So, I don’t know which class (of the 20) he is in. if 和 whether 的選用 ？ if 和 whether 的選用 不能使用 if 的情況： a. 主語從句 b. 表語從句 c. 同位語從句 e. 介詞后的賓語從句 f. whether to do 做動詞賓語不能用 if to do. g .whether or not無論，是否，不管 連在一起引導賓語從句時不用 if. if / whether ? 1. I asked her __________ she had a bike. 2. ________we will hold a party in the open air tomorrow depends on the weather. if / whether Whether 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. whether whether/if whether 6. The question is _________ he should do it. doctor can hardly answer the question ________ the old man will recover soon. 8. I don’t know _______ to go. 9. I wonder _________he will e tomorrow whether whether whether if/whether 當名詞性從句表示疑問，不確定，擔心等，并且從句中不缺任何成分