�。�1）at

　�、俳泳唧w時間：eg.at six,at half past two,at ten to twelve

　　②表示“在…時刻”；eg： at noon,at midnight

　　（2）in

　�、俦硎�“在（某段時間段）之間”；

　　eg.in January,in a month,in spring,in 2005

　　②在將來時中,表示“在某段時間之后”

　　eg.In ten years,I think I’ll be a reporter.

　�。�3）on

　　表示在具體的某一天或某一天的上午、下午或晚上等。

　　eg. On Monday,On Tuesday afternoon,On May4th,On the morning of July 6th

　�。�1）動詞+介詞：look after,look at,look for,laugh at,listen to,hear from,turn On,turn off, wait for,worry about,think of,spend……On

　　（2）介詞十名詞：by train,on foot,at the end of ,at last,in the end,in trouble,at table,at breakfast,

　　in hospital,in time,On time, On one’s way to,with pleasure

　�。�3）be+形容詞+介詞：be afraid of ,be good at,be good／bad for, be late for,be interested in,be angry, with,be full of,be sorry for

　�、俦聿⒘嘘P(guān)系：not only……but also,neither……nor,and

　　②表選擇關(guān)系：or,either……or

　�、郾磙D(zhuǎn)折關(guān)系：but,while

　�、鼙硪蚬�關(guān)系：for,so

　　①引導(dǎo)時間狀語從句： after,before,when,while,as,until,till,since,as soon as

　�、谝龑�(dǎo)原因狀語從句：because,as,since

　�、垡龑�(dǎo)目的狀語從句：so that,in order that

　　④引導(dǎo)結(jié)果狀語從句：so that,so…that,such……that

　�、菀龑�(dǎo)比較狀語從句：than,as…as

　　⑥引導(dǎo)賓語從句：that,if, whether