for, during, through(A) for后接“一段时间”，表示某事持续多久，多与完成时连用。如：She has been ill for several days. 她已经病了几天了。(B) during表示“在……期间”。如：I went to France for two weeks during the summer. 夏天我去了法国两个星期。(C) through表示“一直……，自始至终”。如：They worked hard through the winter. 整个冬天他们都在努力工作。
代词等一般地应作用相应的变化。指示代词 this ---thatthese--- those表示时间的词 now --- thentoday--- that daythis week(month ,etc) ----that week (month ,etc)yesterday ----the day beforelast week(month) --- the week(month) beforethree days(a year)ago---three days(a year)beforetomorrow ----the next (following ) daynext week(month)--the next(following)week(month)表地点的词 here --there动词 bring -- takecome –go</p 产品：澳博培训供货总量：不限产品价格：议定包装规格：不限物流说明：货运及物流交货说明：按订单
