15.Some unwelcome visitors from North America have been turning up in the waters off the coast of Great Britain.North American lobsters (龍蝦) have been found in the North Sea (between Great Britain and Northwest Europe),far from their own habitat.The lobsters usually live along the eastern coast of Canada and the United States.It is impossible that the lobsters could have made the 5,600-kilometre journey on their own.They were probably brought to Britain and then got away from containers.Some of the lobsters that were caught had elastic bands (松緊帶) holding their legs shut,like lobsters that are kept in containers in stores or restaurants.Many may have been"set free"from some ships passing through the area.Sometimes passengers order a live lobster from a tank in the dining room and then ask the waiter to throw it overboard instead of cooking it.According to official records,26 North American lobsters have been caught in waters off Great Britain since 1988.However,it is believed many more have been found but not reported.It is against the law to let North American lobsters come into British waters.If they settle down in European waters,it would be bad for the local lobsters.The two live in the same place and eat the same food.But North American lobsters are larger,stronger and more aggressive (好斗的) than European lobsters,and they produce young more quickly.As a result,they could take food and space away from the local lobsters,and from other types of shellfish that live in the same area.These lobsters may also carry diseases that could harm the local lobsters.
29.Those unwelcome lobstersD.
A.could travel 5,600 km a day on their own
B.used to live in waters off Great Britain
C.would soon disappear in British waters
D.might have escaped on the way to Britain
30.What can we learn about European lobsters?C
A.They are growing too fast to be kept under control.
B.Shellfish often take away their food and space.
C.They are easily harmed by North American lobsters.
D.People become ill easily if they eat these lobsters.
31.The author's purpose of writing the text is most likely toB.
A.discuss
B.report
C.a(chǎn)dvertise
D.introduce.
分析 短文主要描寫了近來英國海岸出現(xiàn)的北美的龍蝦,并分析其出現(xiàn)在此的原因,最后說明其可能會對當?shù)氐凝埼r造成傷害.
解答 29.D,細節(jié)理解題,根據(jù)句子They were probably brought to Britain and then got away from containers可知,這些龍蝦可能是在去英國的路上逃脫出來的,故答案為D.
30.C,推理判斷題,根據(jù)句子But North American lobsters are larger,stronger and more aggressive (好斗的) than European lobsters,and they produce young more quickly.As a result,they could take food and space away from the local lobsters,and from other types of shellfish that live in the same area可知,北美的龍蝦比較好斗,強壯,可能會傷害歐洲的龍蝦,故答案為C.
31.B,推力判斷題,短文主要描寫了近來英國海岸出現(xiàn)的北美的龍蝦,并分析其出現(xiàn)在此的原因,最后說明其可能會對當?shù)氐凝埼r造成傷害,作者沒有其他意圖,僅僅是報導(dǎo)該消息,故答案為B.
點評 解答任務(wù)型閱讀理解題,首先對原文材料迅速瀏覽,掌握全文的主旨大意.因為閱讀理解題一般沒有標題,所以,速讀全文,抓住中心主旨很有必要,在速讀的過程中,應(yīng)盡可能多地捕獲信息材料.其次,細讀題材,各個擊破.掌握全文的大意之后,細細閱讀每篇材料后的問題,弄清每題要求后,帶著問題,再回到原文中去尋找、捕獲有關(guān)信息.最后,要善于抓住每段的主題句,閱讀時,要有較強的針對性.對于捕獲到的信息,要做認真分析,仔細推敲,理解透徹,只有這樣,針對題目要求,才能做到穩(wěn)、準.