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
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