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（適應） 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（鰭）．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（展覽） 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 本文屬于說明文閱讀，作者通過這篇文章主要向我們描述了鯊魚在海洋生物中的重要性，呼吁人們保護和拯救鯊魚．

解答 24．B．段落主旨大意題．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．鯊魚有助于保持海洋動物數(shù)量的平衡，該句為第一段的主題句，故選B．
25．C．細節(jié)理解題．根據(jù)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（鰭）．The fins are used to make shark fin soup大量鯊魚面臨滅絕主要是因為過度捕捉，而這些被捕捉的鯊魚的鰭被用來做了魚翅湯，故選C項．
26．A．詞義猜測題．根據(jù)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可知這個展覽的目的是呼吁人們不要吃魚翅湯，保護鯊魚，因此推測選A項．
27．B．推理判斷題．根據(jù)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為了減少鯊魚數(shù)量的下降，在美國一些地方通過了關于捕捉和買賣鯊魚的法律，故選B

點評 考察學生的細節(jié)理解和推理判斷能力，做細節(jié)理解題時一定要找到文章中的原句，和題干進行比較，再做出正確的選擇．在做推理判斷題不要以個人的主觀想象代替文章的事實，要根據(jù)文章事實進行合乎邏輯的推理判斷．