课题名称二轮复习—— 介词学习目标:复习介词短语在句中可作定语、状语、表语、宾语补足语。学习重点:介词短语的应用主要介词区别1.表示时间的 at,in,on: at 表示片刻的时间,如:at 8 a.m. 常用词组有:at dawn, at noon,at night,at midnight,at the end of,at that time, at Christmas,at New Year 等。 in 表示一段的时间,如:in the morning/afternoon/evening,in October,in 1998,in the 21st century, in summer, in the past, in the future 等。 on 指特定的日子,时间:on Monday,on Christmas Eve, on May Day,on a warm morning, on September 12, on that day 等。2.表示时间的 since 和 from: since “自从…以来”,常与现在完成时、现在完成进行时连用。 from “自…起”,一般多与现在时、过去时、将来时连用。如:I hope to do morning exercises from today./We have not seen each other since 1995.3.表示时间的 in 和 after: in+时间段,一般用于将来时。如:We' II be back in three days. after+时间段,一般用于过去时。如: After two months he returned. 注意:after+时间点,可用于过去时和将来时。如:After seven the rain began to fall. / What shall we do after graduation?4.表示方位的 in,on,to: in 表示 “在…内”, Beijing is in the north of China.on 指 “与…接壤,在河/江畔”, Korea lies on the east of Chinato 指在境外某方向,只强调方向 Japan lies to the east of China.5.表示“在……上”的 on 和 in: on 只表示在某物的表面上,如:There is a book on the piece of paper. in 表示占去某物一部分,如: There is an interesting article in the newspaper. / He dug a hole in the wall.6.表示“穿过……”的 through, over 和 across: through 指在内部穿过, across 则指在表面上的横穿, over 指在上方过去,跨越。如:The Great Wall winds its way from west to east, across deserts, over mountains, through valleys, till at last it reaches the sea.7.In the end,at the end of,by the end of in the end 意为...