3.It’s a world of magic and wonders, a world where anything can happen.

     此句中的where引导一个定语从句。Where引导定语从句与where引导地点状语从句的标记就是其前面有没有一个表示地点的名词。有名词的,往往是定语从句,没有名词的,往往是一个地点状语从句。

      例如:

     They reached a place where there were many trees and flowers. (where引导定语从句)

     They were sent where they wanted to go. (where引导地点状语从句)

[考点透视 考例精析]

   [考点]  考查引导主语从句、表语从句的连接词的用法。

   [考例1]  _________ she couldn’t understand was _________ fewer and fewer students showed interest in her lesson.

      A.What, why      B.What, that      C.That, why       D.That, that

   [解析]  A 本句的主语从句缺少主语,that不能引导主语从句并同时作主语,所以只能选what;第二个空缺表语从句的连接词,根据句子的意思,应该是一个表示原因的连接词,所以就是why。

   [拓展]  引导主语从句时,that不做成分,但是还不能省略,这是一个值得注意的问题。因为that在引导定语从句作宾语及其它从句中是可以省略的;而that引导表语从句时也不做成分。

      再如:

      That he is a good official is known throughout the country. (that引导主语从句,不做成分)

      The reason why he was late was that he had an unexpected visitor. (why引导定语从句;that引导一个表语从句。

   [考点]  并列连词or的用法。

   [考例2]  Start out right away, ________ you'll miss the first train. [06 四川卷]

      A.and              B.but              C.or                D.while

   [解析] C 解析:并列连词or表达的意义是 “否则, 要不然”。

     [考点]  考查at表示一个时间点的用法。

   [考例3]  Don’t call between 12 o’clock and 13 o’clock, _____________ I am usually having lunch.

      A.at which        B.at which time  C. by which       D.by which time

   [解析]  B 本题中的which引导一个定语从句,先行词为between 12 o’clock and 13 o’clock, at表示在12点和13点之间的某个时间,其表示的是一个“时间点”,所以选B。

   [拓展]  英语中表示时间的介词大多是固定的,比如:in the morning/in the afternoon/in the evening, at noon/at night/at midnight, on the morning of next Wednesday/on the afternoon of last Monday, on August 16th等等。

[基础演练]

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