13、(A)随着人口的增加，…With the increase/growth of the population，…
(B)随着科技的进步，…With the advance of science and technology，…
例︰随着台湾经济的快速发展，许多社会问题产生了。
With the rapid development of Taiwan's economy，a lot of social problems have come to pass.
14、(A)在这信息的年代，…扮演重要的角色。
In the age of information and communication，… plays an important role.
(B)在今日工业社会中，…是生命不可或缺的。
In today's industrial society，… is indispensable to life.
例︰在这信息的年代，计算机扮演非常重要的角色。
In this age of information and communication，the computer plays an extremely important role.
15、在讨论…，一个人不得不承认…。
In dealing with …，one cannot but admit (that)子句
例︰在讨论未来的职业，一个人不得不承认尽早决定未来的职业很重要。
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、世上没有什么比…更令我高兴。
Nothing in the world can delight me so much as …
例︰世上没有什么比到快餐店吃汉堡更令我高兴。
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
… 是适当的 It is proper that S (should)V
… 是紧急的 It is urgent that S (should)V
例︰我们当保持公共场所清洁是应当的。
It is proper that we (should) keep the public places clean.
18、每当我听到…，我就忍不住感到兴奋。Whenever I hear …，I cannot but feel excited.
每当我做…，我就忍不住感到悲伤。Whenever I do …，I cannot but feel sad.
每当我想到…，我就忍不住感到紧张。Whenever I think of …，I cannot but feel nervous.
每当我遭遇…，我就忍不住感到害怕。Whenever I meet with …，I cannot but feel frightened.
每当我看到… 我就忍不住感到惊讶。Whenever I see …，I cannot but feel surprised.
例︰每当我想到我家附近那一条清澈的小溪，我就忍不住感到悲伤。
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.
