题目内容
17.It's easy to see how the sawfish got its name.These frightful creatures can grow to be more than 6 meters long.Their bodies are flat and winged,like underwater airplanes.And their noses are shaped like chainsaws.Sawfish are food hunters of the sea.When a sawfish is hungry,it waves its sharp-toothed snout (口鼻部) through a group of fish.Then,it lifts its nose and uses its mouth to draw the injured victims.
Hardy (适应力强的) population of sawfish thrived in warm waters along coastlines around the world for thousands of years.Over the past 200 years,however,human actions have severely endangered sawfish.Threats include fishing nets that trap the huge animals,often by mistake.
Some people collect sawfish's snouts as prizes:One snout recently sold for nearly $ 1,600 online.In some Asian cultures,the toothy snouts are used in ceremonies to drive evil and disease away.And sawfish are also delicious.A growing demand in Asia for the fish's fins for a pricey soup has contributed to the fish's loves.Compared with other fish,sawfish give birth late in life and at slow rates,which makes it hard for them to recover from overfishing.
New efforts now aim to restore sawfish population.Beginning next month,an international agreement will provide protection for all seven of the world's sawfish species.Scientists are hoping that it's not too late to save the sawfish.
Until 1998,"this fish had never been formally studied in the United States,"says Tonya Wiley of the Mote Marine Laboratory in Sarasota,Fla."We didn't know such basic things as where they live,what habitat they use,how often they breed,how many young they have-even what age sawfish are when they begin breeding."
Through historical studies and field research,scientists have become aware of how much the fish's numbers have decreased.Today,there may be 90 percent fewer sawfish than there used to be.Wiley estimates that only 3,000 to 6,000 sawfish remain in US waters.
Sawfish
Size | over (71)6 meters long. | |
Appearance | Body:(72)Flat and wingedNose:Like a chainsaw | |
(73)Steps/Ways of hunting for food | Attacking fish with (74)its sharp-toothed snout. | |
Drawing the injured victims with its mouth. | ||
(75)Factors/Reasons/Causesof Sawfish's disappearance | (76)People's fish-catching activities/Human actions | |
Sawfish's snout relates business. | ||
Its (77)giving birth/breeding late and slowly which makes it hard to recover from overfishing. | ||
(78)Present/Today's situation | Only 10% sawfish left | |
3,000 to 6,000 remain in US waters | ||
Efforts | (79)Aim/Goal/Purpose | Restoring sawfish population |
Measure | (80)Providing protection for all seven of the world's sawfish species |
分析 本文是一篇科教类阅读,文章主要介绍了Sawfish所面临的灭绝的危险,文章分析了具体的原因以及人们现在所采取的措施.因此一项国际协定将向世界上所有七个种类的锯鳐提供防护.
解答 71.6 meters long 信息提取题.根据第一段These frightful creatures can grow to be more than 6 meters long.可知这种可怕的生物可以长到6米多长.则这种鱼的尺寸为6米多长.故该处填6 meters long.
72.Flat and winged 信息提取题.根据第一段Their bodies are flat and winged,like underwater airplanes.可知它们的身体扁平,具翅,像水下飞机.故该处填Flat and winged.
73.Steps/Ways 信息转换题.根据第二段When a sawfish is hungry,it waves its sharp-toothed snout(口鼻部)through a group of fish.Then,it lifts its nose and uses its mouth to draw the injured victims.可知这些讲述的是这种鱼捕猎的过程.故该处填Steps/Ways.
74.its sharp-toothed snout 细节理解题.根据第二段it waves its sharp-toothed snout(口鼻部)through a group of fish.可知它使用自己的口鼻部来捕鱼.故该处填its sharp-toothed snout.
75.Factors/Reasons/Causes 细节理解题.根据第三段Over the past 200 years,however,human actions have severely endangered sawfish.Threats include fishing nets that trap the huge animals,often by mistake.可知本部分是关于这种鱼消失的原因介绍.故该处填Factors/Reasons/Causes.
76.People's fish-catching activities/Human actions 信息提取题.根据第三段Over the past 200 years,however,human actions have severely endangered sawfish.Threats include fishing nets that trap the huge animals,often by mistake.可知这种鱼的消失主要是因为人类的捕捞.故该处填People's fish-catching activities/Human actions.
77.giving birth/breeding 细节理解题.根据第四段Compared with other fish,sawfish give birth late in life and at slow rates可知这种鱼的出生率很低,导致它们的数量不多.故该处填giving birth/breeding.
78.Present/Today's situation 信息转换题.文章最后3段主要讲述这种鱼的现状.故该处填Present/Today's situation.
79.Aim/Goal/Purpose 细节理解题.根据倒数第三段New efforts now aim to restore sawfish population.可知讲述的是人们努力的目标.故该处填Aim/Goal/Purpose.
80.Providing protection 细节理解题.根据倒数第三段Beginning next month,an international agreement will provide protection for all seven of the world's sawfish species.可知从下个月开始,一项国际协定将向世界上所有七个种类的锯鳐提供防护.故该处填Providing protection.
点评 本文细节题居多,答题时在文章找到对应的地方,用笔进行标记,这有利于后期有时间检查时可以立刻找到答案的位置.仔细理解作者所讲的意思,再结合选项,通过排除法和自己对全文的把握,得出正确答案.
A. | those | B. | what | C. | that | D. | the one |