--What’s this in English?
---_____ a bike.
A.Here isB.It’sC.ItsD.This’
B

試題分析:句意:這個用英語怎么說?它是一輛自行車。it人稱代詞,指代物多用于指單數(shù),表特指。故選B.
點評:It用作實詞,表達以下概念:指代前文提到的事物,前文中的this, that;替代前文中的內(nèi)容;指代一位性別不明的小孩或未知的人;指代未指明但談話雙方都知道的那件事;指代時間、天氣、氣候、距離等自然現(xiàn)。除此之外,It常用作形式主語,替代作主語的從句、動詞不定式、動名詞,而把真正作主語的從句、動詞不定式、動名詞置于句尾。
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