线话英语语法讲堂： IT句型解析（5）

　　1．It's time（for sb．）to do sth．／It's time for sth．译为“是（某人）该干……的时光了”、“到……的时候了”。如：

　　It's time for supper ／to have supper． 内容来自

　　2．It takes（sb．）some time to do sth．译为“（某人）花……时间做某事”。如：

　　It took me a week to finish reading the book．

　　3．It is one's turn to do sth．表示“轮到某人做某事”。如： 内容来自

　　It's your turn to be on duty tomorrow．

　　4．It is ／has been ＋时间段＋since ＋个别从前时。译为“自从……以来已过了……（时间）。此结构可能与另一种句型进行同义句转换。如：

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　　It has been two weeks since we met last．＝Two weeks has passed since we met last． 内容来自

　　5．It seems ／seemed ＋that从句。译为“看起来仿佛……”，此构造能够转换成“seem ＋不定式”形式。如： 内容来自

　　It seems that he is ill．＝He seems to be ill．

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　　6．It's＋adj．＋of／forsb．＋不定式。对这个句型究竟用of还是用for，上面许振铎老师的文章中已有论述。这里再强调一下：假如形容词是描写不定式举动者的性格、品格的，如：kind，good，nice，clever等用of；如果仅仅是描述事物的形容词，如：difficult，easy，hard， important，dangerous等则用for。如：

　　It was very kind of you to visit me when I was ill．

　　It's important for him to learn English well． 内容来自

　　7．It's＋表语 ＋to do sth．。如： 内容来自

　　It's a good idea to go out for a walk．＝To go out for a walk is a good idea．

　　8．It's＋adj．＋ that从句。如：

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　　It's true that he may fall behind the other students． CopyR

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