1)It has more disadvantages than advantages.

　　2)It does us much harm.

　　3)It is harmful to us.

　　例如：

　　However,everything divided into two. Television can alsobe harmful to us. It can do harm to our health and make us

　　lazy if we spend too much time watching television.

　　04

　　表示重要、必要、困難、方便、可能

　　1)It is important(necessary,difficult,convenient,possible)for sb. to do sth.

　　2)We think it necessary to do sth.

　　3)It plays an important role in our life.

　　例如：

　　Computers are now being used everywhere,whether in thegovernment，in schools or in business.

　　Soon,computers will be found in every home,too. Wehave good reason to say that computers are playing an increasingly important role in our life and we have stepped intothe Computer Age.

　　05

　　表示措施

　　1)We should take some effective measures.

　　2)We should try our best to overcome(conquer)the difficulties.

　　3)We should do our utmost in doing sth.

　　4)We should solve the problems that we are confronted(faced)with.

　　例如：

　　The housing problem that we are confronted with is becoming more and more serious. Therefore,we must take someeffective measures to solve it.

　　06

　　表示變化

　　1)Some changes have taken place in the past five years.

　　2)A great change will certainly be produced in the world’scommunications.

　　3)The computer has brought about many changes in education.

　　例如：

　　Some changes have taken place in people’s diet in the past five years. The major reasons for these changes are not far to seek. Nowadays,more and more people are switching from grain to meat for protein,and from fruit and vegetable to milk for vitamins.

　　07

　　表示事實、現狀

　　1)We cannot ignore the fact that...

　　2)No one can deny the fact that...

　　3)There is no denying the fact that...

　　4)This is a phenomenon that many people are interested in.

　　5)However，that’s not the case.

　　例如：

　　We cannot ignore the fact that industrialization brings with it the problems of pollution. To solve these problems,wecan start by educating the public about the hazards of pollution. The government on its part should also design stricter laws to promote a cleaner environment.

　　08

　　表示比較

　　1)Compared with A，B...

　　2)I prefer to read rather than watch TV.

　　3)There is a striking contrast between them.

　　例如：

　　Compared with cars,bicycles have several advantages besides being affordable. Firstly,they do not consume natural resources of petroleum. Secondly,they do not cause the pollution problem. Last but not least,they contribute to people’s health by giving them due physical exercise.

　　09

　　表示數量

　　1)It has increased(decreased)from...to...

　　2)The population in this city has now increased (decreased)to 800，000.

　　3)The output of July in this factory increased by 15% compared with that of January.

　　例如：

　　With the improvement of the living standard,the proportion of people’s income spent on food has decreased while that spent on education has increased.

　　再如：

　　From the graph listed above,it can be seen that studentuse of computers has increased from an average of less than two hours per week in 1990 to 20 hours in 2000.

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