【新课标人教版】2012届高考英语一轮复习精品学案：语法部分 第13讲 it的用法及强调句型
语法
第13讲 it的用法及强调句型
it的用法
一、it作指示代词
【完成句子】
用one，ones，it，that，those填空
(1) — I can't find my watch.
— You haven't found ______？ If you want to buy a new ______， I suggest you buy ______ made in China.
(2) We've got a big cup and two small ______.
(3) The weight of an elephant is much greater than ______ of a tiger.
(4) The books on the first shelf are easier than ______ on the second shelf.
(5) The boy told his story and ______ of the girl upstairs.
【答案】
(1) it; one; one (2) ones (3) that
(4) those / the ones (5) that / the one
【结论1】
①指代上文提过的事物时，it指的是同名同物，相当于the＋名词；
②one指的是同名异物，表示单数可数名词相当于a ＋名词；a / an＋形容词＋one等于a / an＋形容词＋名词；复数形式用ones；
③that后面常有后置定语，有特指意义，代替不可数名词或单数可数名词，相当于the＋名词；
④复数名词用those，相当于the ones。
【例句观察】
— Someone is knocking at the door. Who is it?
— It must be Leo. He said he'd come to see me.
【结论2】it指代人时，常指小孩或身份不明的人。
【例句观察】
It's too quiet in the room. Everyone just keeps silent.
【结论2】it可用以指代环境或情况。
【完成例句】
