雅思写作常用的35组短语

　　二十一、For the past 时间，S 现在完成式...(过去...年来，...一直...)

　　例句：For the past two years, I have been busy preparing for the examination.

　　过去两年来，我一直忙着准备考试。

　　二十二、Since S 过去式，S 现在完成式。

　　例句：Since he went to senior high school, he has worked very hard.

　　自从他上高中，他一直很用功。

　　二十三、It pays to V ~~~ (...是值得的。)

　　例句：It pays to help others.

　　帮助别人是值得的。

　　二十四、be based on (以...为基础)

　　例句：The progress of thee society is based on harmony.

　　社会的进步是以和谐为基础的。

　　二十五、Spare no effort to V (不遗余力的)

　　We should spare no effort to beautify our environment.

　　我们应该不遗余力的美化我们的环境。