it用法课件(学考).ppt

13. Our food and service are better than _____ used to be. A. it B. we C. they D. them 14. ---I’m looking for a flat. ---Would you like ____ with ___ garden? A. it; the B. it; a C. one; a D. one; the 15. _______ four years since I joined the Army. A. It was B. It is C. There is D. There was C C B It is never too old to learn. 活到老, 学到老。 It is no use crying over spilt (溢出的) milk. 覆水难收。 It takes three generations (代) to make a gentleman. 十年树木, 百年树人。 Proverbs(谚语) with “It” The use of “it” 一、 用作人称代词, 代表前面提到的人或事物 Who’s it? ________ me. Look at the picture. _____ is a picture of our school. It’s It 二、用于代替指示代词this 和that。 ---Is this jacket yours? ---Yes, ______ is. it 三、用以表示时间、距离、天气、气候、 季节、环境等 It is half past eight now. It’s only half an hour’s walk from here to our school. 3) I hope that it will be fine tomorrow. 4) It has rained much this year. 5) It’s spring now. 6) It’s quiet here. Time Distance Weather Weather Season Circumstance 替代作主语的从句、动词不定式、动名词, 而把真正作主语的从句、动词不定式、动名词置于句尾。 四、it 用作形式主语 1. 代替动词不定式做主语 1) It be adj. (for sb.) to do sth. 此处adj. 通常为描述事件的形容词: easy, difficult, necessary, important, possible, dangerous, right, wrong, legal, useful, useless, It is illegal to drive a car without a license. 2) It be adj. of sb. to do sth. 此处adj. 通常为描述人的形容词: kind , nice, rude, polite, cruel, considerate, thoughtful, careful, careless,foolish, stupid, clever, wise, crazy. Its kind of you to help me with the problem. It’s (well) worthwhile doing/ to do… 这值得我花时间/精力勘察这个城市 It is worthwhile exploring/to explore the city. It’s no good/ use/pleasure doing… It is no use studying only at school. 2. 代替动名词做主语 3. 代替主语从句作形式主语 It is clear ( obvious, true, possible, certain …) that ...（注意没有it is sure that） 该句型中it 是形式主语, 真正的主语是 that 引导的主语从句, 常译为“清楚(显然, 真的……)”, 是主语从句最常见的一种结构。 e.g. It is very clear that he is tall.