職稱(chēng)英語(yǔ)考試基礎知識
職稱(chēng)英語(yǔ)中名詞性從句是在句子中起名詞作用的主謂結構,它可以在主從復合句中作主語(yǔ)、賓語(yǔ)、表語(yǔ)、介詞的'賓語(yǔ)以及同位語(yǔ)。
主語(yǔ)從句主語(yǔ)從句可以由連詞that,wh-疑問(wèn)詞或名詞性關(guān)系詞引導。
⑴由連詞that引導:從句可以位于句首,但常常用形式主語(yǔ)it替代,從句本身則放在主句后面,如:
That he will come to the party is certain. It happened that the harvest was bad that year. Is it true that she has never been there?
通常在口語(yǔ)或非正式文體中,that?墒÷,但必須是在用先行詞it的情況下,如:
Its a pity you are leaving.
⑵由wh-疑問(wèn)詞引導:從句既可以前置,又可以借助于先行詞it后置。如:
Who cleaned the meeting room is unknown. Its still a question when we shall have our sports meet. It is uncertain whether he will come.注意:在疑問(wèn)句中,wh-疑問(wèn)詞所引導的從句不能位于句首,如:
Is it known where she went?
⑶主語(yǔ)從句也可由名詞性關(guān)系詞引導,這類(lèi)從句只能位于句首,如:
Where she went was Los Angeles. What will be,will be. Whomever you invite will be welcome.
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