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It 最基本的用法是 人稱代詞 , 主要代表剛提到的東西以避免重復(fù) 。 Look at that car. It’s going much too fast. Where is the car key? I put it in your drawer. 也可以代表抽象的東西 。 It’s all my fault . 也可以指動(dòng)物或未知性別的嬰兒 。 What a beautiful baby, is it a boy? How about the baby? I’ll take care of it. 還可代表一個(gè)彼此都知其何所指的東西 。 Where does it hurt? If he doesn’t e, I can’t help it. You have saved my life. I shall never fet it. It 可以表示 “ 是誰(shuí) ( 在某處或做某事 ) “Who’s that?” “It’s me.” It’s your mother on the phone. “Why, it’s you!” she cried. It還可以用來(lái)泛指某件事 Isn’t it awful! It doesn’t matter. it 有時(shí)并不指具體東西 , 而指天氣 、 時(shí)間 、 環(huán)境 、 距離等 , 稱為非人稱代詞 it. It’s raining. It’s Tuesday today. It’s quiet here. It’s two miles to the beach. 非人稱代詞 it : It 用于代替指示代詞: 替代詞 one, ones, that, those, it, this, that 1) one, ones, that, those That替換單數(shù)可數(shù)名詞或不可數(shù)名詞; one只替換單數(shù)的可數(shù)名詞 。 The vase on the left is more beautiful than the one on the right. The coffee produced in Brazil is more famous than that in Mexico. That只用于替換表示事物的名詞 , 而 one/ones替換表示人和表示 事物的名詞皆可 。 His younger sister is taller than the elder one. I need the plastic bags, not the paper ones. The puters in our school are connected to the Inter while those in their school aren’t. The football players