as引导的定语从句PPT教学课件

1、主要结构有：主要结构有：the sameas , asas , suchas , soas主句中出现主句中出现the same, as, such, so修饰先行词，用修饰先行词，用as作作主语或宾语。主语或宾语。eg: Its the same person as we wanted to find yesterday .我们昨天要找的是同一个人。我们昨天要找的是同一个人。 Do you have such books as we like ?你有我们喜欢那种书吗？你有我们喜欢那种书吗？第1页/共8页二、引导非限制性定语从句二、引导非限制性定语从句as引导非限制性定语从句，指代整个主句内容，

2、从句可置于引导非限制性定语从句，指代整个主句内容，从句可置于句首，句中或句尾句首，句中或句尾eg: As everyone knows ,China is a beautiful country with a long history . 每个人都知道，中国是一个有着悠久历史的美丽国家。每个人都知道，中国是一个有着悠久历史的美丽国家。The earth , as we know , moves round the sun .地球，我们都知道，围着太阳转。地球，我们都知道，围着太阳转。 Tom is willing to help others, as we all know.汤姆乐于助人，这一

3、点我们都知道。汤姆乐于助人，这一点我们都知道。第2页/共8页 三三 as与与which引导非限制性定语从句的异同引导非限制性定语从句的异同 1.相同：相同：都可以指代前面一个词或整个句子，都可以指代前面一个词或整个句子，并在从句中充当一定的成分并在从句中充当一定的成分eg: I passed the exam, which made me very excided. Taiwan belongs to China, as is known to us all. 第3页/共8页2. 异：位置差异 which引导的从句只能放在主句之后; as 引导的从句可放在主句前，后或插在主语和谓语之间 意义差

4、异 which在句中翻译为：这. ; as翻译为：正如，正像 eg: Some of the roads were flooded, which made our journey more difficult As is known to us all, Taiwan belongs to China. Taiwan, as is known to us all, belongs to China.第4页/共8页eg: As we all know, the earth is round. Mike, as we expected, attended the meeting. He is an

5、 very honest man, as we all believe. As is known to all, Taiwan is part of China. As is often the case with young people, he is overconfidence.第5页/共8页1._ is reported in the newspaper, talks between the two countries are making progress.2.His plan was such a good one _ we all agreed to accept.3.6.He worked