It is an undeniable fact that animals play a vital role in maintaining the subtle balance of the earth’s ecological system.
These days there is a growing tendency for college students to have difficulties in finding job when they graduate.
The normal practice at school (or at least in most Chinese schools) is that the students take the teachers as they are， accept what are taught and do what they are told to do.
Although both sides of the argument have their strong points， I personally agree with the former view.
In my opinion， there is little correlation between the circumstances of people’s lives and how happy they are.
For the people who lend their support to such experiments， the gaining of first-hand knowledge and information about certain species provides adequate justification fit continuing the killing of animals in laboratories.
7. 一位偉大的作傢曾寫到：工作是醫治人間一切病痛和疾苦的萬應良藥。 如果是這樣的話，那麼現在的狀況應使我們想一想，強迫普通工人在50歲退休是否合理。
One of the great early writers wrote that： Work is the grand cure of all the maladies and miseries that ever beset mankind. If this is true， then the present situation should make us wonder whether the measure that the average worker is obliged to retire at the age of 50 is reasonable.
An increasing number of people are joining the “Information Age ” via the Internet 。 In reaction to the phenomenon ， some say the Internet has removed barriers and provided people with immediate access to the world 。 But do they realize that rapidly advancing information technology can also lead to intrusions of privacy ?
One of the pressing problems facing our nation ( China ) today is overcoming disparities in urban and rural income levels 。
Perhaps the most dangerous phenomenon gripping the nation today is official corruption ， which is pervasive in all levels of government.
Inflation is yet another new and bitter truth we must learn to face.
The rapid expansion of urban areas has in many cases encroached on valuable cultivatable land ， and led to a general recognition that development must not be carried at the cost of agriculture 。 The government has attached greater importance to the problem and an increasing number of redundant projects are being terminated 。
There is a growing worldwide awareness of the need for strengthened environmental protection.
A growing number of people are beginning to realize that wealth is not the sole prerequisite for happiness 。
15 。 既然世界上許多國傢仍被饑餓和貧困所困擾，為什麼有的政府還堅持花費數十億美元用於太空探索?現在越來越多的人提出這個問題。
Why do some governments persist in spending billions of dollars on space exploration when starvation and poverty continue to grip many countries throughout the world? This particular question is being raised by an ever increasing number of people.
An increasing number of people are beginning to realize that education is not complete with graduation.
When it comes to education， the majority of people believe that education is a lifetime study.
Many experts point out that physical exercise contributes directly to a person‘s physical fitness.
Proper measures must be taken to limit the number of foreign tourists and the great efforts should be made to protect local environment and history from the harmful effects of international tourism.
There is no denying the fact that air pollution is an extremely serious problem： the city authorities should take strong measures to deal with it.
In view of the seriousness of this problem， effective measures should be taken before things get worse.
In the last decades， advances in medical technology have made it possible for people to live longer than in the past.
We should spare no effort to beautify our environment.
People believe that computer skills will enhance their job opportunities or promotion opportunities.
For my part， I agree with the latter opinion for the following reasons：
Before giving my opinion， I think it is important to look at the arguments on both sides.
This view is now being questioned by more and more people.
Environmental experts point out that increasing pollution not only causes serious problems such as global warming but also could threaten to end human life on our planet.
In view of such serious situation， environmental tools of transportation like bicycle are more important than any time before.
Despite many obvious advantages of bicycle， it is not without its problem.