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、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。
三、It pays to + V ~(……是值得的)
例句:It pays to help others.
帮助别人是值得的。
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。
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
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