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  • what和how引導(dǎo)的從句

    what和how引導(dǎo)的從句
    They want to know _________do to help us.
    答案是填what.
    那么為什么不能用how呢?在此句子中,what充當(dāng)從句的什么成分?
    英語(yǔ)人氣:261 ℃時(shí)間:2020-03-29 10:37:28
    優(yōu)質(zhì)解答
    They want to know what to do to help us.
    know+疑問(wèn)詞+不定式 等于相應(yīng)的賓語(yǔ)從句:They want to know what they can do to help us.
    因?yàn)閐o缺賓語(yǔ),所以用what 作賓語(yǔ),而how是作狀語(yǔ)的,固不可選.
    如果變化一下就只能選how了:
    They want to know how to do it to help us.
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