Should we be afraid of sharks(鲨鱼)? Maybe not. New research into the reasons for shark atta

Should we be afraid of sharks(鲨鱼)? Maybe not. New research into the reasons for shark attacks (攻击) suggests that sharks don’t like the way humans taste! In fact, most people who are attacked by the shark are still alive after receiving only one bite (咬). Why is this?
There are many opinions to explain why sharks sometimes attack people. One opinion is that sharks are just curious (好奇的). We know that sharks are the strongest animals in their environment, so they are not afraid of anything. Naturally, that means they are curious when they meet something unusual. Because they don’t have hands or feet., the only way they can find out an object is to bite it! It is thought that sharks sometimes bite humans for this reason, and then swim away.
Scientists also say that sharks would not waste energy trying to eat a human, as we have a lot of bones (骨头). It is hard for a shark to eat us because sharks don’t have hands, and they can’t pull the meat off our bones. Maybe that’s why they only bite us once. Unluckily, one bite from a large shark is serious enough to hurt people greatly!
Another opinion is that sharks attack humans by mistake. Some sharks may sometimes mistake humans for a seal. An example of this is when a shark attacks a surfer. A surfer lying on a surfboard looks like a seal when seen from below. Sharks like seals because they have thick fat.
Whatever the reason for shark attacks on humans, sharks should be afraid of us. Sadly, we kill almost 40 million of them each year.
【小题1】What happens to people attacked by sharks?A．Most of them because blind.B．Most of them because of deaf.C．Most of them died.D．Most of them are still alive.【小题2】 How do sharks find out about an unusual object according to the passage?A．By biting.B．By smelling.C．By touching.D．By killing.【小题3】Which sentence about sharks is true?A．Sharks pull meat off bones when they eat.B．Sharks might mistake humans for seals.C．Sharks like to attack surfers because of their thick fat.D．One bite from a shark is nothing serious.【小题4】What would the author write the passage mainly for?A．To tell surfers to stay away from sharks.B．To ask people to stop killing sharks.C．To let us know the reasons for shark attacks on people.D．To show that humans are much stronger than sharks.D

(答案→)D 解析：这篇短文主要讲述了科学家们对于鲨鱼为什么袭击人类的原因进行了研究，并且告知冲浪者们要小心防备鲨鱼的袭击。【小题1】细节理解题。从第一段第四句得知答案，多数被鲨鱼袭击过的人仍然活着 ，故选D。【小题2】细节理解题。从第二段第五句得知答案，鲨鱼没有手，只能通过咬来发现物体，故选A。【小题3】细节理解题。从第三段得知鲨鱼误把冲浪者当做seals的原因，故选B。【小题4】主旨大意题。从第三段得知鲨鱼袭击冲浪者的原因，告诉其远离鲨鱼，故选C。

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