21.It has taken me three hours to finish writing the 2500-word composition.
我花了三个小时写好一篇2500字的作文。

22.Children should not depend on their parents too much.。 They ought to do what they can do by themselves/on their owm.。
孩子们不应该过多依靠父母，他们要自己努力做力所能及的事。

23.I could not understand a single sentence without an English dictionary.
我那时离开字典就看不懂一个英文句子。

24.I couldn’t help thinking of his parents at the sight of  the  orphan.
一看到那个孤儿，我就情不自禁地想起了他的父母。

25. With days passing by ,I get to know the importance of  taking notes.
随着时光的流逝，我逐渐认识到记笔记的重要性。

26.That is the rate at which the population in Asia has raised in recent years.
这就是最近几年亚洲人口的增长率。

27.We will accomplish nothing all our life unless we work hard enough.
我们如果不足够努力，必将终生一事无成。

28.People complain that there is too much violence and sex on TV screens.
人们抱怨电视屏幕上暴力和色情太多。

29.In the modern age when human beings depend so much on machines , the disabled have given us new pride.
在人类如此依赖机器的时代，残疾人给我们带来了新的自豪。

30.We are to study in this university for four years, during which we shall prepare ourselves well for the society.
我们将在大学学习四年，在此期间，我们要为进入社会做好准备。

31.Francis Chichester said that it was always satisfying to do sth that no one else had done.
.Francis Chichester说，做前人从未做过的事总是会令人满足的。

32.What they had seen and heard in China made deep impression on them.
在中国的所见所闻给他们留下了深刻的印象。

33.The whole voyage from England and back was more than twice the distance anyone had previously sailed alone.
从英国出发，又返回到英国，整个航程比以往单人驾舟航海的最远航程还远一倍多。

34.In the modern age, people depend more and more on computers to solve problems of various kinds.
当代人越来越依靠计算机解决各种问题了。

35.Chichester’s voyage began because he was terrified of Cape Horn.
.Chichester正是因为对合恩角的恐惧才开始他的那次航行的。

36.He set off once more in spite of his friends’ attempts to dissuade him.
尽管他的朋友尽力劝阻，他还是再度起航了。

37.He isn’t a very good basketball player in spite of his height.
尽管他很高但他不是位很好的篮球运动员。

38The old man looks both ways before crossing the street.
老人左右看了看才橫过街道。

39.One meaning of punctuality is that we must not put off what we can do today till tomorrow.
守时性的意思是：今日事，今日毕。

40.Jack was late for the meeting. Moreover，he didn’t even apologize or give any explanation.
杰克开会迟到了，而且，他既不道歉也不解释。