Part C(每小題1分。共計(jì)10分)

　　答案及解析

　　71.C【解析】由C中的how it works中的“This Was originally developed in order to provide electricity for satellites，….”可知答案為C。

　　72.D【解析】由D中的advantage中的第四句話“Wind farms Can be tourist attractions.”可知答案為D。

　　73.B 【解析】由B中的disadvantage中“Although not much waste is produced，it is very，very dangerous.It must be sealed up and buried for many years to allow the radioactivity to die away.”可知答案為B。

　　74.A 【解析】由A中的disadvantage中最后一條內(nèi)容“Water quality and quantity downstream can be affected.which Can have an impact on plant life.”可知答案為A。

　　75.A【解析】由A中advantage第五句話“Hydro-electric power stations can increase to full power very quickly，unlike other power stations.”可知答案為A。

　　76.B【解析】由B中的內(nèi)容“Produces small amounts of waste.”可知答案為B。

　　77.D 【解析】由D中的advantage內(nèi)容最后一條“A good method of supplying energy to remote areas.”可知答案為D。

　　78.A【解析】由A中內(nèi)容的introduction中“…providing around 20% of the world’s electricity.”可知答案為A。

　　79.c【解析】由C中的how it works中的“This means you don’t need to use so much gas or electricity to heat your water at home.”可知答案為C。

　　80.B 【解析】由B內(nèi)容中的it is renewable中“Nuclear energy from Uranium is not renewable.”可知答案為B。

　　Section IV writing(計(jì)25分。權(quán)重25%)

　　One possible version:

　　There is much discussion nowadays as to whether or not the relationship between family members is as close as before. Diverse contributing factors can be identified. In the following, I would like to present my point of view.

　　Great changes have taken place in family life along with the development of society. One of them is that the once-extended family tends to be-come smaller and smaller. Many children have to leave their parents at an early age to study or work elsewhere. As time passes, children become emotionally estranged from their parents.

　　Compared with the past, social competition is becoming increasingly fierce. People are urged to concentrate their efforts upon work, so that they can achieve success, or at least a good standard of living. As a result, they can' t afford to spend their leisure hours with their families. The importance of bonds of kinship is gradually fading from their minds.

　　In addition, the availability of various kinds of recreational facilities al-so diverts people from enjoying chats with the members of their families. Their free time is mostly occupied by watching TV, surfing the Internet or playing video games. They come to lose interest in communicating with the other members of their families.

　　In view of such alienation within families, urgent steps must be taken, in my opinion. For members if families who live away from one another, regular contact on the phone can bring them the care that they need. Family reunions on holidays or other important occasions can make a difference as well. For those living together, it is a good idea to take some time off work or recreation periods to spend more time with each other.

　　In the final analysis, a close family relationship can surely be maintained as long as we realize the significant role it plays in our lives and attach importance to it.