A. 作文精典句型练习：

1.It 被动语态 that…

1)It is widely acknowledged ( recognized ) that extensive deforestation contributed to heavy summer flooding.

2)It is reported that 800000 applicants sat for the National Master’s Entrance Test in 2003.

3)It is estimated that two thirds of the cities of our countries will be in acute shortage of fresh water by 2010.

4)It is generally accepted that to practise euthanasia on a patient who is still alive is inhuman.

5)It must be admitted that the price war will disturb the normal order of the market. (admittedly)

6)It cannot be denied that the overgrowth of tourism may destroy the ecological balance of some scenic resorts.

7)It is known to all that physical exercises can improve and enrich our physical and mental well-being.

2.It is 形容词 that… (形容词 ly，也可)

1)It is obvious ( evident, clear, undeniable, apparent) that the situation is caused directly by excessive commercial fishing.

2)It is understandable(inevitable) that people’s attitudes are divergent on this controversial issue.
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br>3)It is unimaginable (incredible/unbelievable) that such a boy of 17 should have had three novels published.

3.It is 形容词 for sb (sth ) to do sth

1)It is important (vital) for everyone to participate in physical exercises, for they will do good not only to our body but also to our mind and personality.

2)It is currently difficult for a university student to find an ideal job upon his graduation, especially those majoring in fundamental courses such as history and mathematics.

3)It is highly necessary for our government to stop the corruption of government officials.

4)It is imperative that something urgent be done to combat the widespread use of illegal drugs among teenagers.

4.with/as “随着”句型

1)With the rapid growth of economy, the living standards of the Chinese people have greatly improved. Many of them can now afford to buy houses and cars.

2)With the growing number of college graduates being turned out each year, the situation in the job market is getting tighter and tighter.

3)随着中国人民生活水平的提高，越来越多的中国人能够出门旅游了，有的甚至选择去国外旅游。

4)As industry and agriculture develops, the problem of water shortage will be the more serious.

5)As the reform process of state enterprises speeds up, more and more workers are likely to be laid off, entering the competition in job market.

6)随着咱们国家经济的飞速发展，越来越多的人意识到，资源的短缺将对我们国家的未来发展构成严重的威胁。

5.There be句型

1)In the past ten years there has been a marked decline in the number of young married couples who want to have children.

2)Recently, there has been a strong debate on whether human beings should be cloned.

3)There are still quite a number of children who cannot afford to go to school because of poverty.

4)As the Internet industry develops, there will be more and more people surfing on the web.

5)Now there is a growing concern over the heavy burden, both academic and psychological, our children have to bear.