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If 省略用法

If 省略用法

作者: 夏华菌 | 来源:发表于2017-09-09 12:36 被阅读0次

    类型一: if + 形容词 adj.

    省略的主语和be,要注意主语和形容词对应。

    • if true, this essay may change theory what we believed for a long time.
    • Make a sign telling me if ready.

    某些固定搭配:

    • If necessary, ring me on my cellphone.
    • If possible, let me know beforehand.

    类型二:if + 过去分词 past participle

    和上一条基本一样,这里就是把形容词的位置换成了过去分词,在高考英语中经常考主谓一致的时候会在这里出考题,请注意主谓一致。

    • I will say if asked.
    • Small trifles can escalate to a violence event if not paid good attention to.
    • This fact proves that if put in the same position, women are able to earn as much as men do.

    类型三:if + 不定代词 indefinite pronoun

    这类省略比较依靠上下文,理解要靠语感。

    • There are few people nowadays, if any, who remenber him.
    • This seems to have little, if anything, to do with him.

    类型四: if + 介词短语 prepositional phrase

    有些固定搭配,理解主要依靠语境。

    • If in doubt, ask your doctor, he can give you further information.
    • Their policies have changed little, if at all, since last election.
    • If by any chance you can't manage dinner tonight, perhaps we can at least have a drink together.

    类型五:if ever

    常和seldom连用,表示极少,万一,ever 后面可以接其他类型的成分(if ever 过去分词/形容词)

    • He seldom sings if ever.
    • I seldom do housework if ever.
    • If ever you are in America, do give me a ring.
    • The island is seldom if ever visited by ships.

    类型六:if not/so

    如果不/是

    类型七:if need be

    如果需要=if it is necessary

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