摘要：4．不规则变化 原级 比较级 最高级 good/well better best bad/ill worse worst old older/ elder oldest /eldest many /much more most little less least far farther/ further farthest/ furthest． 5一些容易混淆的介词 a.表示时间的at.on.in的用法区别 at主要表示:(1)在某具体时刻之前 at seven o’ clock.at 7:30. (2)在固定短语中.如:at noon.at night.at that time.at the age of at the weekend.at Christmas. On用来表示具体某一天.如:On Monday.On May lst.On Children’s Day. in用来表示: (1)在某年.某月.某季节. (2)在-段时间之后.如:in two hours.in a few days. 注意:在纯粹地表示在上午／下午／晚上时.用in the morning／afternoon／evening.但在某一天的上午.下午.晚上前要用介词on.如:on Monday morning.on the morning of Children’ s Day.

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