Unit 6 Section Ⅳ　Grammar -（2022）新北师大版《高中英语》必修第二册.pptx

1、Section Grammar走近新课走近新课一起感知一起感知语法探究语法探究一起思考一起思考画出句子中的定语从句画出句子中的定语从句1.Later,she studied Chinese medicine for two and a half years with experts in the field from whom she gained a deep knowledge about traditional practices.2.They did not have enough staff,and the laboratory in which they worked had po

2、or air quality.定语从句定语从句(3)介词介词+which/whom介词介词+which、介词、介词+whom 引导的定语从句引导的定语从句当定语从句中从句缺少状语当定语从句中从句缺少状语,用介词用介词+which、介词、介词+whom的结构。的结构。1.We climbed to the top of the mountain on which/where we had a beautiful view.我们登上了山顶我们登上了山顶,在那里我们看见了很漂亮的景色。在那里我们看见了很漂亮的景色。这个复合句的定语从句是这个复合句的定语从句是“_ we had a beautiful

3、 view”,可以看出可以看出,从句中缺少了地点状语从句中缺少了地点状语on the top of the mountain,所以我们可以用所以我们可以用where代替代替,同时同时,我们也可我们也可以看成此从句缺少的是介词以看成此从句缺少的是介词on+名词短语名词短语the top of the mountain,所以这里也可以用所以这里也可以用on+which代替。代替。2.The reason why/for which he was late was that he was ill.这个复合句的定语从句是这个复合句的定语从句是“_ he was late”,可可以看出以看出,从句中缺少

4、了原因状语从句中缺少了原因状语for the reason,所以我们可以所以我们可以用用why代替代替,同时同时,我们也可以看成此从句缺少的是介词我们也可以看成此从句缺少的是介词for+名词名词 the reason,所以这里也可以用所以这里也可以用for+which代替。代替。3.The couple came to New York in 1998 when/in which they started their restaurant.这个复合句的定语从句是这个复合句的定语从句是“_ they started their restaurant”,可以看出可以看出,从句中缺少了时间状语从句中

5、缺少了时间状语in 1998,所以我们可以用所以我们可以用when代替代替,同时同时,我们也可以看成此从句缺少我们也可以看成此从句缺少的是介词的是介词in+名词名词 1998,所以这里也可以用所以这里也可以用in+which代替。代替。注意注意:介词介词+which、介词、介词+whom的解题关键的解题关键,是看从句中缺是看从句中缺少的部分具体需要什么介词。例如少的部分具体需要什么介词。例如:(1)Do you know the girl _ I talk?(2)Do you know the girl _ I speak?(3)Do you know the girl _ I pay a v

6、isit?(4)Do you know the girl _ I tell you?这四个句子的主句都是一样的这四个句子的主句都是一样的,区别在于从句缺少的内容区别在于从句缺少的内容。(1)I talk后面缺少后面缺少to/with the girl,所以这句用所以这句用 to/with whom填空填空。(2)从句从句I speak 后面缺少后面缺少to/with the girl,所以这句用所以这句用 to/with whom填空填空。(3)从句从句I pay a visit后面缺少后面缺少to the girl,所以这句用所以这句用 to whom填空填空。(4)从句从句I tell y

7、ou后面缺少后面缺少about the girl,所以这句用所以这句用about whom填空。填空。【即学即用】【即学即用】Do you know the girl _whom he falls in love?David is my friend _whom I often play tennis.He had twenty books,_ which only two are interesting.This is quite an interesting job _which I really want to apply.She has three children,all _whom are at school.with with of for of