当前位置:首页 >> >> as与which引导定语从句的用法辨析

as与which引导定语从句的用法辨析


as 与 which 引导定语从句的用法辨析
定语从句是高一英语的主要语法项目之一,也是高考英语的常考知识点,尤 其是 as 和 which 引导的定语从句,更是历年高考试题中的考点和热点。as 和 which 都能引导定语从句,那么它们的共同点和区别是什么呢? 一、as 和 which 都能引导的定语从句 当非限定性定语从句置于句末时, 和 which 都可用来引导这个定语从句。 as 例如: Dorothy was always speaking highly of her role in the play, _______ , of course, made the others unhappy. (NMET2000) A. who B. which C. this D. what 【简析】答案是 B。which 引导非限定性定语从句,指代前面主句的内容, 定语从句部分意为:这当然使别人不高兴。这里不能换用 as 作引导词,因为我 们不能说“正如使别人不高兴”。 The number of senior high school students is increasing, _______ is mentioned above. A. that B. it C. such D. as 【简析】答案是 D。as 引导非限定性定语从句,意思是“正如”。此时也可 以换用 which 引导,但意思有别,意为:这一点上面提到了。 二、只能用 which 引导的定语从句 1. 在限定性定语从句中。例如: The project _______ a British businessman has invested in is under construction at present. A. which B. as C. what D. why 【简析】答案是 A。单个词引导限定性定语从句时,一般不用 as。当然, 本题中的定语从句也可以使用 that 引导;由于关系词在从句中作宾语,which 和 that 都可以省略。 2. “介词+关系代词”引导定语从句时,只能用 which。例如:

Recently I bought an ancient Chinese vase, _______ was very reasonable.(上海 2000 高考) A. which price B. the price of which C. its price D. the price of whose 【简析】答案是 B。此时的 which 不能用 as 来代替。另外还应注意:引导 定语从句时,which 不能单独作定语,此时不管先行词是人还是物,都只能用 whose 引导,但指物时,可以与 of which 替换(如本题)。 3. 当后置的非限定性定语从句是否定结构时,只能用 which 引导。例如: The result of the experiment was very good, _______ we hadn't expected.(2000 京皖春招) A. when B. that C. which D. what 【简析】答案是 C。由于非限定性定语从句是否定结构,只能用 which 引 导,不能用 as 来替代 which。 三、只能用 as 引导的非限定性定语从句 1. 置于句首时,非限定性定语从句只能用 as 引导。例如: _______ is known to everybody, the moon travels round the earth once every month. (NMET2001) A. It B. As C. That D. What 【简析】答案是 B。As 在定语从句中作主语,这里不能换成 Which。 2. 在 the same...as 结构中,意思是“像……那样的”。例如: Chongqing is not the same city _______ we have seen in other places. A. that B. which C. 不填 D. as 【简析】答案是 D。as 在定语从句中作 have seen 的宾语。the same ... that 的意思是“正是……;就是……”。注意:as 不能省略。 3. 在 as...as 结构中,意思是“像……那样的”。例如:

No period in history has had as many important changes _______ have taken place in the past century. A. which B. as C. that D. what 【简析】答案是 B。as 引导定语从句并在从句中作主语。 小试牛刀: 1. _______ has been announced, we shall have our final exam next month. A. That B. As C. It D. What 2. The weather turned out to be very good, _______ was more than we could expect. A. what B. which C. that D. if 3. In the office I never seem to have time until after 5:30 pm, _______ many people have gone home. A. whose time B. that C. on which D. by which time 4. Mathilde had to work hard day and night and bought such a diamond necklace _______ she had lost to pay back to Jeanne. A. as B. that C. which D. 不填 5. —Robert, is this yours? —Yes, it's just the same Walkman _______ I lost on the playground yesterday. A. which B. what C. as D. that Key: 1—5 BBDAD as 作从属连词用时,可以引导五种状语从句。现归纳如下:

1. as 表示“当……的时候”,引导时间状语从句,多强调主句和从句中的动 作或状态同时发生,从句可放在主句前,也可放在主句后。例如:

As I waited at the stop, I heard a big noise. 当我在车站等车的时 候,我听到一个很大的声响。 She rose up as he entered. 当他进来时,她站了起来。

2. as 表示“因为”、“由于”,引导原因状语从句,其语气不如 because 强, 通常为附加说明的理由, 且是已知晓的原因, 主句与从句没有逻辑上的因果关系。 例如: As she was not well, I went there alone. 因为她身体不好,所以我独 自到那里去了。 As he is a tailor, he knows what to do with this material. 由于他是 个裁缝,他知道怎样利用这块布料。

3. as 表示“虽然……但是……”,引导让步状语从句,从句通常用倒装语序, 把从句的表语、状语或动词原形放在 as 前面,可以用 though 替代。例如: Child as he is, he knows a lot. 虽然他是个孩子,但他知道的东西很多。 Hard as it was raining, they went on working in the field. 虽然天下大雨,但他们继续在田地里干活。

4. as 表示“按照”、“依照”、“像”,引导方式状语从句,从句置于主句之后。 例如: You should do as the teacher tells you.你应当依照老师所说的去做。 The absence of air also explains why the stars do not seem to twinkle in space as they do from the earth. 空气的不存在,也说明了为什么在空中星星看来并不闪烁,而不像从地球 上看的那样。

5. as 表示“像……一样”,引导比较状语从句,对主句和从句的动作或状态 加以比较, 说明它们之间有相似之处, 在从句中常省略与主句相同的部分。 例如: He doesn't work as hard as I (do). 他不像我工作那样努力。 I hope the necklace was as good as the one you lent me.

我希望我挂项链同你借给我的一样好。


赞助商链接
更多相关文档:

as与which引导定语从句的用法辨析

as与which引导定语从句的用法辨析_高三英语_英语_高中教育_教育专区。as 与 which 引导定语从句的用法辨析一、as 和 which 都能引导的定语从句 当非限定性定语从句...

as与which引导定语从句的用法辨析

as与which引导定语从句的用法辨析_英语_高中教育_教育专区。as 与 which 引导定语从句的用法辨析 一、 as 和 which 都能引导的定语从句 当非限定性定语从句置于句...

2018届二轮复习 as与which引导的定语从句辨析讲与练 学...

2018 届二轮复习 as 与 which 引导定语从句辨析讲与练 as 与 which 的用法区别: 1. as 引导非限制性定语从句时,通常用于像 as we all know, as it is...

浅谈which和as引导的定语从句

浅谈whichas 引导的定语从句 whichas 引导定语从句的区别: whichas 都可以引导定语从句, 但它们有许多用法上的区别, 现就此简要分析 如下: 一...

as与which引导非限定性定语从句用法

as与which引导非限定性定语从句用法_英语考试_外语学习_教育专区。as 与 which 引导非限定性定语从句用法首先,as 和 which 都可以表示主句在意义上的连贯,在从句中...

as 和 which 引导定语从句的区别

I 这两个句子分别含有 as 和 which 引导的定语从句,现就其用法作一说明: 一、as 引导的定语从句表示说话人对话语的看法、态度、依据、解释或评论。具有下列特点...

as引导定语从句时的特殊用法

as引导定语从句时的特殊用法 - as 引导定语从句时的特殊用法 关系代词 as 既可以引导限制性定语从句,也可以引导非限制性定语从句。as 可以在从 句中作主语、宾语...

关系代词as与which引导的非限制性定语从句的区别

关系代词 as 与 which 引导的非限制性定语从句,其先行词都可以是整个主句, 指代主句的整个意思。但 as 和 which 具有不同的词义、句法和用法。 1. as 引导...

as_which引导定语从句的区别

众所周知,whichas 都可以引导定语从句,但它们有许多用法上的区别,现 就此简要分析如下: 一、whichas 引导非限制性定语从句的区别: 1.Which 只能放在...

关系代词as与which的用法区别

关系代词 as 与 which 的用法区别一、as 和 which 的相同点 (1) as 和 which 都可引导非限制性定语从句,放在主句之 后;在非限制性定语从句中充当从句的主语...

更多相关标签:
网站地图

文档资料共享网 nexoncn.com copyright ©right 2010-2020。
文档资料共享网内容来自网络,如有侵犯请联系客服。email:zhit325@126.com