Question

1．Sharks have been swimming in the ocean for millions of years．They were on Earth even before dinosaurs!At the top of the world's ocean's food chain，sharks help keep the population of other ocean animals in balance．A large drop in the number of sharks can cause（引起） serious problems for all ocean animals．Saving sharks makes sense!
Many people are afraid of sharks．But most sharks are harmless．Only a small percentage of sharks are known to attack humans．It adapt（适应） well to new habitats and eat whatever is available．However，today，sharks are in trouble．Nearly one-third of the 400 shark species are in danger of extinction，largely due to over-fishing．Each year，tens of millions of sharks are caught and killed just for their fins（鳍）．The fins are used to make shark fin soup．
Humane Society International （HSI） joined with the Jane Goodall Institute's Roots and Shoots program and Beijing Zoo to protect sharks．An exhibit（展览） at the zoo，"the Price Behind the Taste-----Protect Sharks．Don't Eat Shark Fins"，was designed to tell people that shark finning is cruel and unnecessary．It's hoped that the activity will help put an end to the practice．
Shark fin soup is also eaten in the United States．In fact，the numbers of some shark species in US waters have dropped 90 percen t in the last 30 years．To slow the fall，laws against the sale of shark fins have been passed in several states，including Hawaii，Oregon，Washington，and Cali fornia．
24．What does the first paragraph mainly tell us？B
A．Ocean animals are at the top of the food chain．
B．Sharks play an important role in the ocean
C．Sharks are an old species in the ocean．
D．Sharks are being caught and killed．
25．According to paragraph 2，sharks are in trouble becauseC．
A．they often attack humans．
B．their food is being polluted．
C．they are being caught for food．
D．their habitat is being destroyed．
26．The underlined part"the practice"in Paragraph 3 refers toA．
A．shark finning        B．shark protection
C．the program of HIS   D．the exhibit at Beijing Zoo
27．What do we know from the text？B
A．There are 400 shark species in the United States．
B．It's illegal to eat shark fin soup in the United States．
C．Most sharks are not interested in a human for dinner．
D．Sharks are very particular about their habitats and food．

Answer 1

分析 本文属于说明文阅读，作者通过这篇文章主要向我们描述了鲨鱼在海洋生物中的重要性，呼吁人们保护和拯救鲨鱼．

解答 24．B．段落主旨大意题．由sharks help keep the population of other ocean animals in balance．A large drop in the number of sharks can cause serious problems for all ocean animals．鲨鱼有助于保持海洋动物数量的平衡，该句为第一段的主题句，故选B．
25．C．细节理解题．根据第二段Nearly one-third of the 400 shark species are in danger of extinction，largely due to over-fishing．Each year，tens of millions of sharks are caught and killed just for their fins（鳍）．The fins are used to make shark fin soup大量鲨鱼面临灭绝主要是因为过度捕捉，而这些被捕捉的鲨鱼的鳍被用来做了鱼翅汤，故选C项．
26．A．词义猜测题．根据第三段An exhibit at the zoo，"the Price Behind the Taste-----Protect Sharks．Don't Eat Shark Fins"，was designed to tell people that shark finning is cruel and unnecessary可知这个展览的目的是呼吁人们不要吃鱼翅汤，保护鲨鱼，因此推测选A项．
27．B．推理判断题．根据最后一段To slow the fall，laws against the sale of shark fins have been passed in several states，including Hawaii，Oregon，Washington，and California为了减少鲨鱼数量的下降，在美国一些地方通过了关于捕捉和买卖鲨鱼的法律，故选B

点评 考察学生的细节理解和推理判断能力，做细节理解题时一定要找到文章中的原句，和题干进行比较，再做出正确的选择．在做推理判断题不要以个人的主观想象代替文章的事实，要根据文章事实进行合乎逻辑的推理判断．