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sary、 useless、 likely、 probable、impossible等。 I think it no use arguing with him. I found it very interesting to study English. He made it clear that he was not interested in that subject. ( 9)用于強調(diào)結(jié)構(gòu)。 It is a long way to the school. ( 7)作形式主語。 It was very noisy (quiet) at the very moment. ( 5)指時間、季節(jié)等。 —What’s this? —It’s a knife. —Whose watch is that? —It’s mine. ( 3)起指示代詞的作用,指一個人或事物。高中英語語法 之 IT 的 用 法 it的基本用法 ( 1)用作人稱代詞,代替前文提到過的事物。 The train has arrived. It arrived half an hour ago. ( 2)用以代替提示代詞 this, that。 —Who is knocking at the door? —It’s me. ( 4)指環(huán)境情況等。 —What time is it? —It’s eight o’clock. It often rains in