Water may be dirty and contains microscopic animals or bacteria dangerous to human health.
Modern technologies in recreational activities have brought us easier and more convenient life, but using them too often might result in the loss of creativity.
Amusements give them great happiness and help relieve pressure and depression.
Internet trains young people to respond quickly and arouses their interest in computer science.
Advertisements provide us with much useful information.
Tourists have chance to experience a completely different culture.
It calls for the joint efforts of government and private sector.
People have become increasingly self-centered and greedy .
Certain news organizations have reputation for not presenting the news objectively .
The large amount of violence in films and on television constitutes a threat to society.
Globalization does not necessarily mean the loss of their national identity .
Artistic projects should be developed by the private sector for profit.
Internet exerts great negative impact on the innocent minds of the young.
The transportation of fruits and vegetables by air might enable people to have a variety of food choices.
Genetically modified plants are not as tasty as those grown in their original areas.
The most common reason for crime is poverty.
We have introduced many ways of controlling crimes.
We can access a wider variety of source s than the average library can provide.
Libraries are supposed to serve the entire community.
Some people have forgotten their own tradition, history and culture.
Some people believe that learning more about other countries often helps you to learn about your own beliefs and traditions .
I think strongly that because of the extensive use of advertisements on so many different topics in so many different places it does cause people to lose their distinctive personality.
It is not difficult to get the conclusion that wearing certain clothing will become cool, beautiful, athletic or intelligent.
The fact that people are afraid to go out at night is often a result of perceived danger rather than actual danger.
25.拥有同样的电影、音乐、 、电 道也会使生活乏味单调，这是显然的。
It is obvious that having the same films, music, brands, television channels would also make life dull and monotonous .
According to the laws, advertisements must be completely truthful and healthy
Thanks to the development of medical science, people live longer than before.
With the limited budget, the government is unable to invest much money in education.
Moving big companies and factories to the countryside may ease the transportation and living conditions
Restricting car use would cause protests from those eager to show off their wealth.
Playing games does not need students to use any creativity.
Families play an important role in moulding children’s character.
More courses promoting the healthy and psychological growth of students should be suggested.
Compared with the old generation, young people are inclined to be independent at an earlier age.
Many young people wish to use hi-tech equipment to do almost everything in life, including finding information.
As evil people always have guns, it is dangerous for citizens if the police do not carry them.
Because women’s physiques are different, they are not so capable as men in the fiercely competitive world of the military.
If we tear down the old building, we are ruining the culture heritage and the traditional values as well.
Journalists should be reasonably objective, though complete objectivity will be different to achieve, as everyone has their own opinions and standpoints .
Just as young people can choose to stop working and enjoy their leisure time, old people should also be allowed to continue working. （三）形容词性复合句
Those who want libraries to remain more traditional in nature point to the costs of hi-tech equipment.
The clothing that you wear is one way to express your uniqueness .
They think this practice does not coincide with the civilized world in which liberty and individuality are worshiped highly.
The most immediate factor that has give rise to this phenomenon is the extensive use of farming machinery, which has freed more farmers from the land to seek better opportunities in cities.