定语从句的考点之五
对介词后接关系代词而不接关系副词的考查；当关系代词作介词宾语，且该介词不是和从句的谓语动词构成固定短语时，介词可以提前，这样就出现"介词 关系代词"。先行词指物，用"介词 which", 指人则用"介词 whom", 且两个关系代词均不能省略，介词的选择要遵循两个原则：
1.根据定语从句中谓语动词与先行词的搭配内容而定。 2.根据先行词特殊用法而定。例如：
（11）This flower doesn’t do well in soil other than the one_____ it has been specially developed．
A．for which B．that C．of which D．where 选A。
（12）Anyway, that evening, ____I will tell you more about later, I ended up staying at Rachel’s place.
A. when B. where C. what D. which 选D。
定语从句的考点之六
关系代词as的考查。关系代词as引导限制性定语从句时既可指人又可指物。它只能替代由such，the same等修饰的先行词；as引导非限制性定语从句时，可放于句首，句中或置于句尾，而which则只能置于主句之后。但如果定语从句为否定句或表示否定意义，使用which。As引导的定性定语从句有"正如"之意，而which引导的没有。例如：
（13）Our teacher set us such a difficult maths problem _____ we could not work out.
A. that B. which C. as D. even 选C。
（14）Carl said the work would be done by October , _______ personally I doubt very much.
A. it B. that C. when D. which 选D。
（15）________ is reported in the newspaper , talks between the two countries are making progress.
A. It B. As C. That D. What 选B。
定语从句的考点之七
解题时要注意题干的内容和句子的结构，（进行必要的语法分析，弄清句子结构。）再行答题。例如：
（16）The teacher wanted to teach us ___ he knew at this last lesson.
A. all which B. all what
C. of which D. everything which 选B。
（17）Meeting my uncle after all these years was an unforgettable moment , _______ I will always treasure.
A. that B. one C. it D. what 选B。
（18） Mrs Brown was much disappointed to see the washing machine she had had _____went wrong again.
A. it repair B. it repaired
C. repaired D. to be repaired 选C。
（19）______is well-known that Antarctica is difficult to reach
A. It B. What C. As D. Which 选 A
（20）_______is well-known , Antarctica is difficult to reach.
A. It B. What C. As D. which 选C。
（21）_______is well-known is that Antarctica is difficult to reach.
A. It B. What C. As D. which 选B。
虽然定语从句的结构和用法比较复杂，但只要从定语从句的形式上、结构上和用法上来分析理解和比较，就一定就能把握定语从句的用法。
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