12. 在我的求學過程中我忘不了…
In the course of my schooling. I will never forget …
例︰在我的求學過程中我忘不了學習英文所遭到的大困難。
In the course of my schooling. I will never forget the great difficulty I encountered in learning English.

13. (A) 隨著人口的增加… With the increase/growth of the population, …
 (B) 隨著科技的進步, … With the advance of science and technology, …
例︰隨著臺灣經濟的快速發(fā)展許多社會問題產生了。
With the rapid development of Taiwan's economy, a lot of social problems have come to pass.

14. (A) 在這信息的年代…扮演重要的角色。
In the age of information and communication, … plays an important role.
(B) 在今日工業(yè)社會中…是生命不可或缺的。
In today's industrial society, … is indispensable to life.
例︰在這信息的年代計算機扮演非常重要的角色。
In this age of information and communication, the computer plays an extremely important role.

15. 在討論…一個人不得不承認…。
In dealing with …, one cannot but admit (that)子句
例︰在討論未來的職業(yè);一個人不得不承認盡早決定未來的職業(yè)很重要。
In dealing with one's future career, one cannot but admit that it is very important to decide one's future career as early as possible.

16. 世上沒有什么比…更令我高興。
Nothing in the world can delight me so much as …
例︰世上沒有什么比到快餐店吃漢堡更令我高興。
Nothing in the world can delight me so much as having hamburgers in fast-food restaurants.

17. … 是必要的 It is necessary that S (should) V
… 是重要的 It is important/essential that S (should) V
… 是適當?shù)?It is proper that S (should) V
… 是緊急的 It is urgent that S (should) V
例︰我們當保持公共場所清潔是應當?shù)摹?BR>It is proper that we (should) keep the public places clean.

18. 每當我聽到…;我就忍不住感到興奮。Whenever I hear …, I cannot but feel excited.
每當我做…; 我就忍不住感到悲傷。 Whenever I do …, I cannot but feel sad.
每當我想到…;我就忍不住感到緊張。Whenever I think of …, I cannot but feel nervous.
每當我遭遇…我就忍不住感到害怕。Whenever I meet with …, I cannot but feel            frightened.
每當我看到… 我就忍不住感到驚訝。Whenever I see …, I cannot but feel surprised.
例︰每當我想到我家附近那一條清澈的小溪我就忍不住感到悲傷。
Whenever I think of the clean brook near my home, I cannot but feel  sad.
= Every time I think of the clean brook near my home, I cannot help  feeling sad.

19. 據(jù)說… It is said (that)子句
一般認為… It is thought (that)子句
大家都知道… It is known (that)子句
據(jù)報導… It is reported (that)子句
一般預料… It is expected (that)子句
一般估計… It is estimated (that)子句
一般相信… It is believed (that)子句
例︰一般相信閱讀增加我們的知識、擴大我們的心胸。
It is believed (that) reading increases our knowledge and broadens our mind.

20. …的主要理由是…
The main reason why ….. is (that)子句
例︰青少年犯罪的主要理由是社會環(huán)境日一敗壞。
The main reason why the juveniles commit crimes is that social  environment is becoming worse.