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)
例句：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。
二十六、bring home to +人+事(让……明白……事)
例句：We should bring home to people the value of working hard。
我们应该让人们明白努力的`价值。
二十七、be closely related to ~~(与……息息相关)
例句：Taking exercise is closely related to health. 做运动与健康息息相关。
二十八、Get into the habit of + Ving = make it a rule to + V(养成……的习惯)
例句：We should get into the habit of keeping good hours. 我们应该养成早睡早起的习惯。
二十九、Due to/Owing to/Thanks to + N/Ving，~~~(因为……)
例句：Thanks to his encouragement，I finally realized my dream。
因为他的鼓励，我终于实现我的梦想。
三十、What a + Adj + N + S + V！= How + Adj + a + N + V！(多么……！)
例句：What an important thing it is to keep our promise！
How important a thing it is to keep our promise！遵守诺言是多么重要的事！
书香门第
