表语从句与同位语从句 Microsoft PowerPoint 演示文稿.pptVIP

; 表语从句是在复合句中作表语的名词性从句, 放在系动词之后,一般结构是“主语+系动词+表语从句”。可以接表语从句的系动词有be, look, remain, seem等。另外,常用的还有the reason why … is that … 和It is because …等结构。例如：;问题是他们是否能帮我们克服困难 The question is whether they will be able to help us out. 那就是我们应该首先做的事 That is what we should do first. 这是因为你太认真的缘故 It is because you are too serious. 他看起来好像快要哭起来了 He looked as if he was going to cry ;;that whether在句中不作成分,没有实在意义,但whether含有“是否”的意义。 表语从句的“是否”只用whether引导。 连接代词和连接副词在从句中都作成分,同时也含有自己的意义。;注意: 1. reason 作主句主语时，表语从句的连接词要用that而不用why. The reason ______ such a serious accident happened is _______ the driver was too careless and drunk. ; 2.如果主句的主语时idea, advice , suggestion , order, request , requirement,等时,则表语从句的谓语应用虚拟语气(should+do) My suggestion is that we should have a discussion. My only requirement is that you should finish the work on time ;用适当的引导词填空 His wish was _______ he could lose weight soon. 2. It looked _______ it was going to snow. 3. The problem is _______we can get food and clothing. 4.That was ______ they wanted to have a bet. 5. The question is ________ it is worth doing.;语法:表语从句 1.住在农村的一个优点是你可以呼吸到更多的新鲜空气。 One advantage of living in the countryside is that you can breathe more fresh air. 2.这就是我想说的。 This is what I want to say. 3.问题是这部电影是否值得一看。 The question is whether the film is worth seeing.;Grammar;Revision;3. The news that you told me yesterday was really disappointing. 4. That is where Lu Xun used to live. 5. I wonder why she refused my invitation. ;6. I am glad that I have passed the exam. 7. It is said that terrorists plan to attack America again. 8. The reason why he was absent was that he was ill. ;同位语从句;同位语： This is Mr Zhou, _____________________. Lots of people want to visit Ottawa, _________________. 同位语与所修饰的名词可构成一个“主+系+表”结构。如： The girls were surprised at the fact that they lost the game.;同位语从句： 同位语从句是用来说明前面名词的具体内容。 常为news, wish, fact, hope, truth , idea , suggestion, question ,story, advice等抽象名词;I heard the good news that my best friend gave birth to a