高考英语语法专题复习 课件45《英语句子概论.ppt

另外，wh-疑问词引导的主语从句，可以放在句首(第一组)，也可以借助形式主语it(第二组)。 第一组： When hell be back depends much on the weather. How it was done was a mystery. Whether well succeed remains to be seen. 第二组： It is uncertain whether the game will be held. Its a puzzle how life began. It doesnt matter much where we live. Is it known where he went？ It 做形式主语的主要结构： 1). It’ possible/important/necessary/clear… that……很可能/重要的是…/必要的是…/很清楚… 2). It’s said/ reported… that..据说/据报道… 3). It’s been announced/declared that..已经通知/宣布… 4). It seems/appears/happens.. that…显然、明显、 碰巧.. 5). It’s no wonder that…并不奇怪/无疑… 6). It’s a pity/a fact /a common knowledge (众所周知） / a common saying….（俗话说）that 1.主语从句通常被看作一个整体,主句的谓语动词用 单数形式. That they will come is certain. 2.由who, whoever引导的主语从句的单复数要视主句中的单复数而定. Whoever say that are to be punished. Who he is doesn’t concern me. 3.What 引导主语从句时,主句谓语动词的单复数由表语的单复数决定. What he wants are these books. What he wants is some water. 考点二：主语从句的主谓一致! 4.两个以上的从句做主语时，谓语动词要用复 数，但是如果这两个从句同指一人一事，谓语动 词用单数。 What he said and where you will do are none of my business. Where and when the building will be built hasn’t been decided. 考点二：主语从句的主谓一致! 注 意： What you left are only several old books. What you said is of great importance. What he says and does doesn’t concern me. What he says and does don’t agree. “if” 不能引导主语从句，应有“whether”引导。 主语从句的 “that” 一般不能省。 “what”引导主语从句时，谓语动词： 1）常与其后的名词作表语一致 2）根据句子的语境而定。 ___ he made an important speech at the meeting was true. A. That B. Why C. What D. How 2. ___we’ll go camping tomorrow depends on the weather . A If B Whether C That D Where 3.___ is known to us all is that America is a developed country____the First World. Which; belong to b. As, belonged to c. What; belonging to d. It; belonging to 4. It’s known to us all ___ a form of energy . A. water is B. that water is C. is water D. that water to 5. It w