As we all know, most animals only perform tricks when given treats. However, Kim, the world's f

B
As we all know, most animals only perform tricks when given treats. However, Kim, the world's first spider to learn a skill, needs no stimulus(刺激物) to do what she loves—jumping from different heights and distances—upon the instruction of a team of scientists from the University of Manchester.
While the idea of training a spider might sound evil, the researchers' motives were purely scientific. They tried to unlock the secrets behind the jumping spiders' extraordinarily high leaps to catch prey(猎物) or to escape their enemies. A better understanding of the spiders' leaps would help experts develop more efficient flying and jumping robots.
The scientists found that Kim could gather enough force in her legs to jump more than six times the length of her own body from a stationary position. What was even more amazing was that she always landed perfectly. For shorter distances, Kim used a lot of energy, resulting in quick leaps, which the researchers believe probably increases her chances of catching fast-moving prey. The farther the distance was, the less extra energy was used, resulting in slower but precise leaps.
Previous studies have indicated that spiders use both their muscles and hydraulic(液压的) pressure—a mechanism by which blood is transferred to their extended legs—to push them off the ground. However,in Kim's case, her leg muscles alone appeared to be generating enough force for the lift-off. The researchers now intend to do further research to comprehend fully not just the spiders' jumping technique, but that of other insects as well. “We are familiar with robots that are aimed at taking over human functions, but there are millions of insects in the world that perform specific functions that we have interest in adapting to robotics,” says Nabawy, the leading engineer of the researching team.
5.What is the purpose of scientists' researching the jumping spider?
A.To have fun and relax.
B.To help develop robots.
C.To get rid of spiders.
D.To protect this species.
6.Why did Kim use a lot of energy for short distances?
A.To jump high enough.
B.To land more precisely.
C.To catch fast-moving prey.
D.To increase chances of escape.
7.What does the underlined word “that” in the last paragraph refer to?
A.Jumping technique.           B.Leg muscle.
C.Further research.              D.Energy for lift-off.
8.What can be a suitable title for this passage?
A.Jumping Techniques Used by Spiders
B.Spiders' Leaps Inspired Experts to Create Robots
C.Animals Perform Tricks if Provided with Treats
D.The World's First Spider That Jumps on Demand
B
【语篇解读】 本文为一篇说明文。科学家们为了帮助专家研发更高效的飞行和跳跃机器人,对蜘蛛的跳跃进行了细致的研究,希望将动物身上的特定功能应用在机器人的研发上。
5.B 细节理解题。根据第二段最后一句A better understanding of the spiders' leaps would help experts develop more efficient flying and jumping robots.可知,科学家们研究蜘蛛的跳跃是为了帮助专家研发机器人。故选B项。
6.C 细节理解题。根据第三段中的For shorter distances,Kim used a lot of energy, resulting in quick leaps, which the researchers believe probably increases her chances of catching fast-moving prey.可知,在较短的距离中,金消耗大量的能量完成了快速跳跃,研究人员认为这可能增加了她抓住快速移动的猎物的机会。故选C项。
7.A 词义猜测题。根据最后一段中的The researchers now intend to do further research to comprehend fully not just the spiders' jumping technique, but that of other insects as well.可知,研究人员现在打算作进一步的研究,不仅要全面了解蜘蛛的跳跃技术,还要了解其他昆虫的跳跃技术。not just... but( also)...连接的是并列成分,结合句意可知,此处that指代跳跃技术。故选A项。
8.B 主旨大意题。根据第二段最后一句A better understanding of the spiders' leaps would help experts develop more efficient flying and jumping robots.和最后一段中的We are familiar with robots that are aimed at taking over human functions, but there are millions of insects in the world that perform specific functions that we have interest in adapting to robotics可知,科学家们为了帮助专家研发更高效的飞行和跳跃机器人,对蜘蛛的跳跃进行了细致的研究。B项(蜘蛛的跳跃激发专家们创造机器人)能够概括全文,适合作为本文标题。
 
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