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Part2 考点14 考点14 It的用法 1.主要考查的知识点： (1)it作形式主语、宾语 (2)it强调句的结构 (3)it的其他固定用法 2.复习重点： (1)it作形式主语、宾语的用法 (2)it用于强调句的用法 (3)it的固定句型 1. it作人称代词的用法 (1) It's a tree. (2) I have a new bike. It (＝ The bike) was given to me as my birthday present by my parents. (3)— Who is it knocking at the door? — It must be Leo. He said he'd come to see me. (4) It is spring now and it's warm these days. (5) It's time that we should clean the house. ＝It's time that we cleaned the house. 1. it作人称代词的用法 (6) It is three years since I became a doctor. 我当医生已经3年了。 (7) It is three years since he was a doctor. 他不当医生已经3年了。 (8)It is the second time that she has visited the Great Wall. 1. it作人称代词的用法 (9)It was evening when we got home. ＝It was evening in which we got home. (10) It was five years before they finally graduated from Beijing University. 过了5年他们才从北大毕业。 (11) It won't be long before we graduate from our school. 不久，我们就要从学校毕业了。 1. 指代除了人以外的一切事物，如：(1)。 2. 指代上文提过的事物，相当于“the ＋ 名词(单数)”或替代上文的this / that，意指同类同物，如：(2)。 3. 指代人时，常指小孩或身份不明的人，如：(3)。 4. 指代时间、季节、天气、温度、距离、环境、情况等自然现象，如：(4)。 【注意】 | 
