名词性从句_成人高考专升本(英语)核心考点

2019-08-16 小北 荣泽成考网
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  一、主语从句
  1. 主语从句必须有引导词,如果主语从句中从句表陈述,则一定用that引导。这里that无实际意义,类似于古代汉语中的“之”用来取消句子独立性。如:That he was late made me angry.
  2. 当主语从句表示不确定的“是否”选择关系时,则只能用whether引导而不用if。如:
  Whether he will go abroad is not decided yet!
  3. 当主语从句表示疑问时,用相应的疑问句加陈述句加陈述语序的句式,此时绝不能再加that.如:When he will come here will be announced in 20 minutes.
  二、宾语从句
  1. 当主句谓语动词为think, suppose, expect, believe, imagine, guess等词时,如果宾语从句是否定含义,则否定前移。如:I don’t believe he is a thief. 而不能说成I believe he is not a thief.
  2. 在含宾语从句的复合句中,如果就宾语从句中的成分提问、疑问句放在主句前(know做主句谓语动词时除外),主句变疑问语序,而宾语从句仍用陈述语序。如:
  When do you think they should put their bikes
  Do you know where they should put their bikes
  3. whether 与if 的区别
  (1) 引导让步状语时只用whether.如:Whether it rains or not, you must go to school.
  (2)表语从句或同谓语从句中只能用whether
  如:The problem whether he will be killed will be discussed.
  (3) 与不定式或or not 连用时,应用whether引导。如:I don’t know whether to do it or not.
  三、几组重要的连接成分
  1. who/whoever, what/whatever的区别
  一般说来,what/who 含特指意义,意为“什么/谁;而whatever/whoever含泛指意义,意为”无论什么/无论谁“。如:It is generally considered unwise to give a child _____ he or she wants.
  A. however   B. whatever    C. whichever   D. whenever
  2. where, when, why等连接副词引导的名词性从句。
  where., when, why 等连接副词也可以引导名词性从句,使用的关键是:这个词必须符合句子的逻辑要求。如:
  --I drove to Zhuhai for the air show last week
  --Is that ______ you had a few days off
  3.”介词+who(m)”引导的宾语从句与”介词+whom”引导的定语从句的区别。
  介词后面的引导词用主格还是宾格,决定于它在宾语从句中作主语还是宾语。如:
  It was a matter of _______ would take the position.
  四、名词性从句中的插入成分
  此时应注意两点:一是从句仍然不倒装,而在插入成分上倒装;二是要注意主语的主格和宾格的选择。如:
  _____ you have seen both fighters, ______ will win
  A. Since, do you think who B. As, who you think
  C. When, whoever              D. Since, who do you think
  五、引导词that的省略
  引导宾语从句时,that可以省略,但引导主语、表语和同位语从句时,that不能省。
  China’s success in manned-spacecraft travel shows ______ our country has become one of the greatest powers in space research.
  A.what   B. which    C. /     D. it that
  六、同位语从句引导词where、when的用法
  说明先行词内容的同位语从句的引导词where、when与被说明的名词在概念上不一致。但引导定语从句的引导词却必须保持一致。试比较:
  1.They arose the question______ we were to get so much money.
  2.This is the house ________ the great man Mao Zedong was born 110 years ago.
  A. where    B. that    C. about which    D. in which
  1. I remember _____ the factory owned a small workshop and 2 machines.
  A. when  B. how   C. whether  D. what
  2. He always thinks of ______ he  can do more for the people.
  A. what   B. how  C. if     D. whatever
  3. What the doctors really doubt is _____ my mother will recover from the serious illness soon.
  A. when  B. how   C. whether   D. why
  4. Some college students are seen doing _____ work they can find to support themselves.
  A. that    B. which   C. whatever   D. no matter what
  5. After _____ seemed an endless effort, the patient was finally able to carry out _____seemed a perfectly normal walk.
  A. what; what   B. that; that    C. it; that   D. which; like
  答案:1. A   2. B  3. C   4. C  5. A