It 句型归纳.doc

It 句型归纳句型归纳1． It is ＋adj．(＋for sb．／sth．) ＋ to do sth． 用于此句型的形容词有：easy， hard， difficult，possible， important， impossible， necessary， good， bad， exciting， interesting， surprising 等如： It is necessary to change your job． It was very hard for them to walk such a long way in the snow． 2． It is ＋n．(＋for sb．／sth．) ＋ to do sth． 用于此句型的名词有： pity, shame, pleasure, one’s duty, one’s job, fun, joy, good manners, bad manners 等如： It is a pity for you to have missed such a wonderful play． It is bad manners for the young to take up the seats for the old． 3． It is ＋adj．＋of sb．＋to do sth． 此句型中的形容词主要描述某人的品德、特征。

能用于该句型的形容词有： kind, nice, wise, silly, polite, impolite, friendly, foolish, clever 等如： How silly it was of you to give up such a good chance！ It is friendly of the family to try to make me feel at home in their house． 4． It is ＋adj． （＋n． ）＋doing sth． 此句型中的形容词和名词常见的有：no／little use, no／much good, useless 等如： It’s no use crying over spilt milk． 5．It takes sb．＋一段时间＋to do sth． 表示“做某事花费某人多长时间”如： It took us half an hour to ride to the town by the sea． 6．It is ＋及物动词的过去分词＋that 从句 此句型中常见的及物动词的过去分词有：said, told, known, reported, recorded, thought, believed, considered 等。

如： It is reported that the Russian President will visit China next week． 7．It ＋不及物动词＋that 从句 此句型中不及物动词常见的有：seem， happen， appear， matter 等如： It seems that there will be a heavy snow tomorrow． It happened that I met my good friends in the museum yesterday． 8．强调句型：It is＋被强调部分＋that／who 从句 在使用强调句型时要注意，指人时可以用 who 或 that，其它情况一律用 that如：It was under the bed that my brother hid the ball this morning． It is Mr Bell who／that often comes and looks after the old man． 9．It is／has been＋一段时间＋since 从句如： It is ／has been three years since we saw each other last． 10．It is (high) time that sb． did sth． 该句型表示“某人现在该做某事了”，从句常用过去时（虚拟语气） 说明现在应该做的事情。

如： It’s six o’clock．It is high time that we went home now．。