1.not only …… but also …….
We should not only learn advanced knowledge of science and culture， but also cultivate noble virtues and build strong character.
TV can not only keep us informed of what is happening throughout the world but also bring us various forms of entertainment.
2. with the development of … ， more and more …….
With the improvement of the living standards， more and more of the Chinese people can now afford to go traveling， and some of them even choose to go abroad.
With the rapid development of our national economy， an increasing number of people come to realize that the shortage of natural resources will threaten (pose a threat to) the future development of our country.
3. it is ….. that ……. & to do …. (含强调句)
It must be admitted that today’s university students are confronted with many challenges and stresses.
It is widely recognized that drug-abuse will cause a huge loss of both life and wealth.
It is generally accepted that the establishment of social security will contribute enormously to the stability and progress of the society.
It is highly necessary for the government to take steps to stop corruption.
It is time for our educators to pay enough attention to the psychological problems on college campuses.
4. there be …….
There are still many children who can not afford to go to school because of poverty in the remote areas of our country.
There are several reasons which are responsible for/may account for/contribute to the coming back of many overseas Chinese students.
5. once ……..， …….
But once(when) moved out of the green house， the flowers will perish under the rain and storm.
Once leaving their parents， many young people cannot make a living of their own.
6. in order to ………， we……
To achieve an even greater success at the 2008 Olympic Games， we must invest a great deal more into our athletes and our sports facilities.
In order to grow up healthily，people need to have a willingness to take risks，to confront the unknown，and to accept the possibility that they may “fail” at first.
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