6.The gentle giants of our oceans are whale sharks.It's the biggest whale shark and can reach as long as 41.5feet,and these amazing creatures are not only the biggest sharks,but they are also biggest fish of any kind.
Whale sharks have a lifespan of 70years on average,and they spend their days gently swimming in the warm and tropical oceans.
Their teeth are the size of match heads,and while their jaws could be powerful,they have never tended to attack humans.Their teeth play no role in eating,as plankton does not need to be chewed.They are to be found in numbers in the warmer oceans and they prefer the deep waters of open oceans.They tend to travel alone.
Several times a year they gather together in certain spots where plankton is plentiful.Those areas are all within a 30°north or south latitude from the equator.Sadly whale sharks are targeted by commercial fisheries at those spots.
How easy it must be for those fishermen to catch those beautiful creatures who can only swim at 3.5miles per hour!So great a loss in numbers have they suffered that whale sharks are now listed as one of the endangered species.Some countries have started to take measures to protect the whale sharks from extinction.
The Philippines,India and Taiwan have all banned the fishing,selling,importing and exporting of whale sharks for commercial purposes.However,the law doesn't seem to be effective because the hunting and killing still goes on today,especially in Taiwan and the Philippines.Each whale shark can fetch around $21,000.In parts of Asia they are known as the"money shark".
The mighty dollar wins again at great cost to our habitat,and we will not know what we have lost until we have lost it forever.Therefore,it is high time for us to do something for the whale sharks.
31.We can learn from the passage that whale sharksD.
A.usually live a life of more than 70years
B.a(chǎn)lways travel in the ocean in groups
C.depend on their teeth to harvest their food
D.live in the deep waters of warmer oceans
32.Why can the whale sharks be caught easily?A
A.Because they swim in the oceans at a slow speed.
B.Because they are surrounded by so many fisherman.
C.Because they often gather together.
D.Because they never tend to attack humans in the water.
33.We know that in Taiwan and the Philippines,C.
A.fishermen are earning little by catching the whale sharks
B.fishermen have stopped hunting and killing the whale sharks
C.fishermen are continuing to hunt and kill the whale sharks
D.importing and exporting whale sharks is legal
34.It is implied in the passage thatD.
A.whale sharks will be extinct even if they are protected
B.whale sharks are the most dangerous marine animals
C.there is no law about banning the fishing of whale sharks
D.the huge profit is to blame for the decreasing numbers of whale sharks
35.What is the main purpose of this passage?A
A.To appeal to people to protect whale sharks
B.To advise the government to make related laws.
C.To guide people how to fish and kill whale sharks.
D.To analyze the value of whale sharks.
分析 本文屬于記敘文閱讀,作者通過這篇文章向我們介紹了鯨鯊,它生活在溫暖的海洋的深水水域,因其有巨大的利潤而被漁民捕殺,如今已經(jīng)快瀕臨滅絕,因此作者呼吁我們要可保護鯨魚.
解答 31.D 細節(jié)理解題,根據(jù)第二段Whale sharks have a lifespan of 70years on average,and they spend their days gently swimming in the warm and tropical oceans.可知鯨鯊生活在溫暖的海洋的深水水域,故選D.
32.A 推理判斷題,根據(jù)第五段How easy it must be for those fishermen to catch those beautiful creatures who can only swim at 3.5miles per hour!So great a loss in numbers have they suffered that whale sharks are now listed as one of the endangered species.可以推測出鯨魚鯊很容易被抓住是因為他們以一種緩慢的速度在海洋里游泳,故選A.
33.C 細節(jié)理解題,根據(jù)倒數(shù)第二段The Philippines,India and Taiwan have all banned the fishing,selling,importing and exporting of whale sharks for commercial purposes.However,the law doesn't seem to be effective because the hunting and killing still goes on today,especially in Taiwan and the Philippines.可知在臺灣和菲律賓漁民們依然在繼續(xù)捕殺鯨鯊,故選C.
34.D 推理判斷題,根據(jù)倒數(shù)第二段Each whale shark can fetch around $21,000.In parts of Asia they are known as the"money shark".可知漁民捕殺鯨鯊是因為它們很貴,漁民可以從中獲得巨大的利潤,故選D.
35.A 主旨大意題,通讀全文可知作者寫這篇文章是為了呼吁人們保護鯨魚,故選A.
點評 考查學生的細節(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,再做出正確選擇.在做推理判斷題時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.