Angry owners have called on the Government to erect sea defenses to protect their homes. Government surveyors have pointed out that in most cases, this is impossible .New sea walls would cost hundreds of millions of pounds and would merely make the waves and currents go further along the coast, shifting the problem from one area to another. The danger is likely to continue, they say, until the waves reach an inland area of hard rock which will not be eaten as limestone is. Meanwhile, if you want to buy a cheap house with an uncertain future, apply to a house agent in one of the threatened areas on the south coast of England. You can get a house for a knockdown price but it may turn out to be a knockdown home.
　　11.What is the cause of the problem that people living on parts of the south coast of England face?
　　A) The rising of the sea level.
　　B) The experts' lack of knowledge.
　　C) The washing-away of limestone cliffs.
　　D) The disappearance of hotels houses and gardens.
　　12.The erosion of the white cliffs in the south of England________.
　　A) Will soon become a problem for people living in central England
　　B) Has now become a threat to the local residents
　　C) Can be stopped if proper measures are taken
　　D) Is quickly changing the map of England
　　13. The experts study on the problem of erosion a ______
　　A) Warn people whose homes are in danger
　　B) Provide an effective way to slow it down
　　C) Help to its eventual solution
　　D) Lead to its eventual solution
　　14. It is not feasible to build sea defenses to protect against erosion because ________.
　　A)house agents along the coast do not support the idea
　　B) it is too costly and will endanger neighboring areas
　　C) the government it too slow in taking action
　　D) they will be easily knocked down by waves and currents
　　15. According to the author, when buying a house along the south coast of England, people should _______.
　　A) take the quality of the house into consideration
　　B) guard against being cheated by the house agent
　　C) examine the house carefully before making a decision
　　D) be aware of the potential danger involved