•语法专项提升介词与介词短语•表进行意义的四类介词短语•(1)at+名词•HewasatdinnerwhenIcame
我来时他正在吃饭
•Shestayedatworkwheneverybodyelsehadgonehome
•别人都回家了,她却还在工作
•类似的还有:•atwork在办公atplay在玩耍•atlunch在吃中饭atrest在休息•attable在吃饭atschool在上学•atchurch在做礼拜atpeace和平时期•atpress正在排印•有些结构可能带有冠词或物主代词:•atone’smeals在吃饭•atone’sstudy在学习•atthepiano在弹钢琴•attheend(of)在结束时•atthedesk在读书•(2)in+名词•Heisinthearmy
•He’sbeeninpoliticsallhislife
•Herhusbandwasinbusiness
她丈夫是经商的
•Helookstired
Heisinneedofarest
•他看起来很累了,需要休息一会儿
•类似的还有:•inaction在运转inprogress在进行•inoperation在运行中•有些结构可能带有冠词:•inthecourseof在……过程中•intheactof正在做……时•(3)on+名词•Areyouhereonbusinessorforpleasure
•你是来办事还是来玩
•Thetypistisawayonholidaythisweek
打字员本周休假
•Themanonwatchdidn’tnoticethedanger
•值班的人没有注意到这危险
•类似的还有:•onguard在值勤onleave在休假•onholiday在度假onstrike在罢工•onsale出售onloan借贷•有些结构带有冠词:•