th语法专题名词性从句.doc

语法专题 名词性从句 (Noun Clauses) 1.概念 在句子中起名词作用的句子叫名词性从句。 2. 种类 1) 主语从句: 主语从句 + 谓语动词+ 其他 2) 表语从句: 主语 + 系动词+ 表语从句 3) 宾语从句: 及物动词 /介词+ 宾语从句 4) 同位语从句: 名词 /代词+ 同位语从句 3. 名从引导词分类及作用: 名词性从句的引导词 作用 连接词 ?that, whether/if（是否） 不作成分只起连接作用 连接代词 ?what(ever) ，who(ever)， whom(ever) ， which(ever) whose 作主、宾、表、 定语 连接副词 ?when(ever), where(ver), why, how, 作状语 例句展示 ◆That they will win the game is certain. →It is certain that they will win the game. ◆Whether the task can be finished on time is still unknown. →It is still unknown whether the task can be finished on time. ◆Why he didn’t come here is not clear to anyone. →It is not clear to anyone why he didn’t come here. ◆Whoever breaks the law should be punished. ◆What he said at the meeting is important. 例句展示 ★Can you tell me when and how I can get to the city? ★I don’t understand what he means. ★I am not sure whether he would help me. ★He said that he had visited his former English teacher several times. 例句展示 ◆It is still a question whether the bridge can be completed next month. ◆When she heard the news that the earthquake happened in her hometown, she lost consciousness. ◆They have no idea whether they should go on with the search. ◆The question who can go to the meeting hasn’t been decided. 名从考点： 1. what和that _____he can’t finish the work on time is ____makes us worry. (KEY:That，what) 注：what在从句中作主语、宾语、表语等。that只起连接作用, 在从句中不作任何成分。 2. 名词性从句中的谓语语气问题 1) I advise that he ____________ (stay) and wait here． 2) It is advised that we __________ (hold) another meeting to discuss the question. 3) My advice is that the injured man ________ (send) to hospital at once． KEY 1) (should) stay 2) (should) hold 3) (should) be sent 注：表“建议、命令、要求、安排”等词其后的名词性从句要用虚拟语气：（should）+动词原形。此类词有：advise/suggest/propose/ recommend/insist/order/command/demand / require/ request等等。 3. that的省略与保留 1) _______ they would take the risk is clear. 2) The reason is ______ he is careless. 3) I don’t think _______ she is coming. 4) We al