中考英语复习课件6-介词.ppt
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* * 介 词 ? 一、表示时间的介词: 1. in, after, later表示时间的区别 in +时间段, 用于将来时, 表示“过…后”; after+一段时间,用于过去时,表示“在…以后”; after +时间点, 用于将来时, 表示“在…以后” 时间段+ later Eg: An hour _____, he came back. He will come back _____ an hour . ______ an hour , he came back. 2.in, on , at表示时间的区别 in 主要表达周、月、季节、年代;泛指上午、下午、晚上 on 主要表示具体的某一天,也可表示某一天的某个时候 at 表示某一时刻 Eg : _____six o’clock ____ half past five ____1996 /____ May , 2009 / _____ Spring / ____ the morning _____ Monday / _____May 4th , 2009 特殊: _____ the morning of 2009 / ______a winter afternoon later in After at at in in in in on on on on 3、for , since 表时间的区别 for + 一段时间 since + 时间点 / 句子 如:The boy has been in China____ a week . = The boy has been in China _____ a week ago . = The boy has been here ______ he came to China last week. 4、to ,past ,pass表时间的区别 to 介词 ,大于30分钟时, 表示“差”。 6:50 ten to seven past介词 ,小于30分钟时, 表示“过”。 6:10 ten past six pass 动词,表示“经过,过去”。 He passed by me . for since since 二、表示地点的介词 1、above , over , on 在。。。上面 above 在。。。上方 (与物体表面不接触) over 在。。。正上方 (与物体表面不接触) on 在。。。上面 (与物体表面接触) Eg: There is a book ______the desk. The plane is flying ______ the cloud. There is a bridge ______ the river . 2、through , across, cross 穿过 through 介词 ,纵穿(从空间穿过) across 介词 ,横穿(横过某个平面) cross 动词 ,横穿(横过某个平面) Eg: He is walking ________ the street . = He is ___________ the street
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