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    語法考點薈萃--名詞性從句(二)

    來源:教師招聘網  時間:2021-02-22 18:04:20

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    1.表語從句

    在復合句中作表語的名詞性從句,放在系動詞之后,一般結構是“主語+系動詞+表語從句”?梢越颖碚Z從句的系動詞有be,look,remain,seem等。

    (1)引導表語從句的連接詞

    連接詞:that,whether(if不引導表語從句),as if

    The trouble is that she has lost his money.

    The question is whether we really need their help.

    It looked as if it was going to snow.

    連接代詞:what,who,whom,which,whoever,whomever,whichever,whatever等

    The question is which of us should go.

    The problem was who could do the work.

    That’s what he is worrying about.

    That’s what we should do.

    連接副詞:when,where,why,how,however,whenever,wherever

    Go and get your coat. It's where you left it.

    That is how mice ruin many stores of grain every year.

    (2)表語從句其他常見結構

    ①The reason is that…

    The reason why he is late for school is that he missed the early bus.

    ②That is because …

    That’s because we never thought of it.

    ③That is why…

    That is why I cannot agree.

    ④It seems / looks as if

    It seems as if he didn't know the answer.

    2.同位語從句

    (1)一般跟在某些名詞后面,用以說明該名詞表示的具體內容。例:

    I heard the news that our team had won.

    I had no idea that you were here.

    (2)常見的可以跟同位語從句的詞(抽象名詞):

    news,idea,fact,promise,question,doubt,thought,hope,message,suggestion,word (消息),possibility等。例:

    I’ve come from Mr. Wang with a message that he won’t be able to see you this afternoon.

    (3)同位語從句與定語從句的區別

    ①同位語從句與前面的名詞是同位關系,說明它前面名詞的內容;屬于名詞性從句范疇。定語從句與前面的名詞是修飾與被修飾關系,限定前面名詞范圍,屬于形容詞性從句范疇。

    The news that I have passed the exam is true.

    The news that he told me just now is true.

    ②引導同位語從句的that是連詞,在從句中不充當任何成份,而引導定語從句的that是關系代詞,除了起連接作用外,還在從句中充當主語、賓語或表語等。例:

    The idea that computers can recognize human voices surprises many people.

    The idea that he gave surprised many people.

    【典型例題】

    After _____ seemed an endless wait, it was his turn to enter the manager’s office.

    A. that B. if

    C. what D. there

    【答案】C。解析:考查賓語從句。句意:好似無盡地等待之后,輪到他進經理辦公室了。該空位于介詞After之后,引導賓語從句,后面的從句缺主句,應用what。故選C。

     

    (責任編輯:岳曉明)

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