人教实验版高二 Module 6Unit 4I. 代词 it a. 用作人称代词 , 代替前文提到的事物。 My watch is missing. I can’t find (it) anywhere ． Her father has gone abroad. Have you heard about (it)? b. 代替指示代词 this, that 。 What’s this? (It’s) a computer ． Whose pen is that? It’s mine ．c. 表示时间、天气、距离、季节、明暗等。 It’s time for lunch. It’s getting warmer and warmer ．It’s forty years since my hometown was liberated ． It’s summer now ． How far is it from here to the airport ？ It’s about twenty minutes’ walk from here to the bus stop ．II. 引导词： a. 作形式主语 , 代替由不定式 , 动名词或从句表示的真正主语。其基本句型为： It ( 形式主语 ) +adj. + to+ v. It ( 形式主语 ) +adj. + that (subject ( 主语 )+v. ) It ( 形式主语 )+adj.+ whether (subject +v.) It is ＋ adj. ＋ for ／ sb. to do sth. (of ) It ＋ seems (appears) ＋ that (subject ＋v.) happens ① It is very important to help each other ． ② It is no use / useless going there again ． ③ It’s not decided yet when they will leave for Shanghai ． ④ It seems that he has caught a cold. =He seems to have caught a cold ． ⑤ Is ____ possible to master a foreign language in two months? A. now B. that C. it D. man ⑥ Is ____ necessary to tell his father the truth? A. it B. that C. what D. heb. 作形式宾语 , 代替由不定式、动名词或从句表示的真正宾语。其主要基本句型为 : 主语＋谓语＋ it ( 形式宾语 ) ＋宾语补足语＋ to do sth. (doing sth. 或 that 从句 ). ① Marx found it important to study the situation in Russia ． ② She thought it no use to write to him again ． ③ They want to make it clear to the public that they do an important and necessary job ． ④ Do you think ___ difficult to work out this maths pr...
