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21、For the past51Test 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。

22、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。

23、It pays to V...（…是值得的。）

例句：It pays to help others.

帮助别人是值得的。

24、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。

25、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。

26、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。

27、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。

28、Get into the habit of Ving

= make it a rule to V （养成…的习惯）

We should get into the habit of keeping good hours.

我们应该养成早睡早起的习惯。

29、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。

30.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！