Unit 3 Under the sea语法 主语从句课件 人教版高中选修7.ppt

Subject Clauses 主语从句 1. 主语从句：从句在句中充当主语成分 1). That he will succeed is certain . Whether he will go there is not known . 3) How we can help the twins will be discussed at the meeting. 1．??引导主语从句的连接词有三类： (1)????连词that、 whether ?： Whether we go by train or by boat makes no difference. Whether?he’ll?come?here?isn’t?clear.?? That price will go up is certain. 1.连接词： 1）从属连词：that， whether等. that 引导主语从句只起引导作用，本身无实际意义，在主语从句中不充当任何成分，但不能省略。 That she left him cut him to the heart. That he will come is certain. 由whether及其他连词引导的主语从句放在句首，句后都可。 Whether it will please them is not easy to say. What?she?did?is?not?yet?known.（宾语） Who will write the poem has not been decided yet.（主） Whatever he did is right.（宾） (2)???连接代词who,?whom,?whose,?what,?which,?whoever,?whatever,?whichever等（在从句中做主、宾、表、定） 由连接代词whoever，whatever等引导的主语从句意义不同于who，what引导的主语从句意义。以who，whoever为例，who只有它本身的疑问含义“谁”，whoever相当于anyone who 。 Who is the girl over there ? Whoever break the rule will be punished. 1. ____ will win the gold medal remains to be seen. 2. _____ wants to ask questions is welcome any time. 3. The manager decided to offer the job to _____ he believed had a strong sense of duty. Who Whoever whoever Who/ whoever/ whomever 4. ________ you choose as your wife has nothing to do with me. 5. ______ breaks the law should be punished. 6. There is no doubt that anyone _____ doesn’t give in to difficulties will be successful at last. Whomever Whoever who 3)????连接副词?where,?when,?how,?why等（在从句中做状语）。 How?this?happened?is?not?clear?to?anyone.? When he will be back depends on the weather. How the pyramids were built is still a mystery. 依据“缺什么补什么”原则确定正确的连词。如果从句中缺主语，指人用who，指物用what；如缺宾语，指人用whom，指物用what；如缺时间状语用when；地点状语用where；原因状语用why；方式状语用how；定语用what或which；什么都不缺用that。 Where he will go is unknown. What you said yesterday is right. That he knows Japanese is known to all. Whether he is coming doesn’t matter much. 主语从句后置! 注意: 有时为了使句子结构平衡, 避免 “头重脚轻”, 常用 it 作形式主语, 而把从句放在后面。 例如: 　　It is a pity that she has made