2010年高考英语语法辅导课件-定语从句.pptVIP

根据下列句子，完成短文。 众所周知，2008年北京将举办奥运会。英语作为一种国际语言，将会在交流中起着重要作用。作为一名高三学生，我们应抓住现在的学习机会努力学好它。只有这样，才能为奥运贡献自己的力量。 1. It is very useful to master a foreign language, ________ has been said before. as 2 ___ everyone hoped, Mary has won the first prize. As as引导定语从句可放在句首，句中，句末，而which 引导定语从句不能放在句首.as译为正如，which 则没有此义。 as 的使用 as 的用法通常出现在一些固定短语之中如： 1．as has been said before 如上所述 2．as may be imagined 正如可以想象出来的那样 3．as is well known 众所周知 4．as was expected 正如预料的那样 5．as has been already pointed out 正如已经指出的那样 6．as we all can see 正如我们都会看到的那样 7. as is mentioned above 正如上面提到的 8. as often happens 正如经常发生的那样 定语从句中的主谓一致 定语从句中的谓语动词的人称和数与先行词保持一致。 例如： 1.?Here are such sentences as are often used by the students.?( as指代sentences,谓语动词用are)。 2.?I, who am a Party member, should work hard for our country.( who指代I, 谓语用am.)。 3.?He was one of the students who were praised for it. ( who指代the students) 他是被表扬的学生之一。 4.?He was the only one of the students who was praised for it. ( who 指the only one) 他是唯一被表扬的学生。 定语从句中的动词的数 He is the only one in his class who _______ (have) got the teacher’s praise He is one of the students in his class who _______ (have) got the teacher’s praise has have 关系词在定语从句中做主语时，谓语动词的数取决于先行词 易与定语从句混淆的其他复合句 1.定语从句与同位语从句 定语从句与前面的名词是修饰与被修饰的关系“…的”。 而同位语从句是用来说明前面名词的内容。与that从句 同位的名词必须是一些表事实或概念的抽象名词， 如fact, news, belief, truth, reply等。that在定语从句中 作成分，可用which 或who/whom代替；而that在同位 语从句中不充当任何句子成分，只起连接作用。试比较： ①??We all have heard the news that our team won. (同位语从句，that从句表示news的内容，that 在从句 中不作任何成分) ②??We don’t believe the news that/which he told us yesterday. (定语从句，that 作told 的宾语) 2. 定语从句与状语从句。 试比较： ①? He left the key where he had been an hour before. (where引导地点状语从句，相当于in the place where) ②?He left the place where he lived for many years. (where 引导定语从句，修饰the place) ③?He is such a good teacher as all of us l