1、It is hard to imagine what our life would look like without computers in modern society.很难想象如果现代社会没有了计算机，我们的生活会变成什么样子。

2、It is conceivable that being physically active does good to health.可想而知，积极参加体育活动有利于身体健康。

3、It is a highly controversial issue whether women should join the armed forces or not.女性是否应该参军是一个非常有争议的问题。

4、It is universally acknowledged that water and air are indispensable to human beings. 人们普遍认为，水和空气对人类不可缺少。

1、Undoubtedly，practical courses can be used to the reality, which is of vital importance to their development in the future.毫无疑问，实用性课程可以用于实际中，这对于他们未来发展是非常重要的。

2、Children tend to imitate what they have seen and heard on mass media, which is sometimes dangerous and harmful.孩子们倾向于模仿大众媒体上的所见所闻，这在有时是危险和有害的。

3、The majority of students believe that part-time jobs will provide them with more opportunities to develop their interpersonal skills, which may put them in a favorable position in the future job markets.大部分学生相信业余工作会使他们有更多机会发展人际交往能力，这对他们未来找工作是非常有好处的.

1、Instead of indulging in playing computer games, children should be taught how to benefit from useful information on the internet.应该教孩子们如何从互联网获取有益的信息，而不是沉溺于玩电脑游戏。

2、On no account (Under no circumstances)can we ignore the immense value of knowledge.我们绝不能忽视知识的巨大价值。

3、College students take part-time jobs not for more money but for a better understanding of societies. 大学生参加兼职工作不是为了赚更多钱，而是为了更好地了解社会。

4、One’s salary does not depend so much on his educational background as on his ability and contribution to the society.一个人的工资与其说取决于他的教育背景倒不如说取决于他的能力和对社会的贡献。

1、Violent films can do harm to young people, because they contains numerous negative information.暴力影片对年轻人是有害的，因为其中包含大量负面信息。

2、Human beings are chiefly responsible for wild animal extinction. 野生动物灭绝的主要责任在人类。

3、We should attribute (ascribe)medical advances to the animals which do substantial contributions to the experiment.我们应该把医学的发展归因于动物对实验做出的巨大贡献。

4、Because of overpopulation, water shortage has become one of the most serious problems.由于人口过剩，水短缺已经成为一个最严重的问题。

1、Computers, most important of all, create wide communication around the world.最重要的是，计算机在世界范围内建立了广泛的交流。

2、Providing more parking areas, in the long run, has proved to be a practical way out in many large cities in the world.从长远的利益来看，提供更多的停车位证明是许多世界大城市切实可行的出路。

3、Observing local culture, consciously and unconsciously, can reduce the chance of offending the locals, or it will lead to the embarrassment and even conflict.无论是否意识到，遵循当地的文化可以减少冒犯当地人的机会，否则，就会导致尴尬甚至冲突。

4、Space exploration, some people believe, will bring some unexpected discoveries.有人相信空间探索将会带来意想不到的发现。

1、It is for the benefit of maintaining the ecological balance that human beings ought to protect the endangered animal species.正是为了维持生态平衡，人类才应该保护地球上濒危的动物物种。

2、It is not until people suffer from some fatal diseases such as SARS and AIDS that they are becoming aware of how significant it is for the government to invest more money in medical care. 直到人们患了像非典和爱滋病这样致命的疾病时，才意识到政府把更多的钱投入到医疗上的重要性。

1、Studies show that juvenile delinquency rates are twice as high for youngsters from single-parent families as for those in traditional households.(同级比较)研究表明来自单亲家庭的青少年犯罪率是来自传统家庭的两倍。

2、Generally speaking，people in modern times enjoy less leisure time than they did previously.(比较级)一般说来，现代人比过去享有更少的休闲时间。

3、Compared with those with different abilities，children with intelligence do more well in their school work and intelligence tests.与不同能力的孩子相比，聪明的孩子在学业和智力测验方面表现更加突出。

4、Contrary to pop stars，other professionals like doctors and teachers create the true value for their society.与明星不同，其他专业人员如医生和教师为社会创造了真正的价值。

1、Only in this way can the problem be tackled properly.只有这样才能妥善地解决这个问题。

2、Only when children take arduous efforts can they become successful.只有当孩子们付出艰苦的努力他们才能获得成功。

3、Not only does studying in school serve academic purpose, but students learn how to handle interpersonal relations.在校学习不仅为了学术目的，而且还可以学会如何处理人际关系。

4、Under no circumstances should youngsters follow negative information on mass media blindly.青少年决不应当盲从大众媒体上的不良信息。