Question

    It's a common belief that fish can't remember anything for longer than seven seconds. It may seem sad to think that every moment in their lives would be like seeing the world for the first time. But don't be so quick to feel sorry for them. A new study has found that fish have much better memories than we used to think.

In the study, researchers from Mac Ewan University in Canada trained a kind of fish called African cichlids to go to a certain area of their tank to get food. They took the fish out and then waited for 12 days before putting them back in the tank again. They found that after such a long break the fish sill went to the same place where they first got food.

In fact, scientists had been thinking for a long time that African cichlids might have a good memory. But there was no clear evidence until the latest findings.

Just as a good memory can make our lives easier, it also plays an important part when a fish is trying to survive in the wild. "If fish are able to remember that a certain area contains(容纳) safe food, they will be able to go back to that area without putting their lives in danger," lead researcher Trevor Hamilton told Live Science.

So next time you are watching your pet fish from outside the tank, perhaps you should feel close to them-they may remember who you are.

1.We often feel sorry for fish because __________.

A.they have bad memories B.they can't remember anything

C.they are often used for research D.every moment in their lives is new

2.Why did the researchers carry out the research?

A.To know if fish can find food easily. B.To find out if fish have better memories.

C.To tell us fish can live for days without water. D.To show fish can live long without eating things.

3.What does the underlined word "tank" in Paragraph 2 mean?

A.A kind of fish food. B.A kind of hiding place.

C.A container for holding water. D.A container for keeping fish.

4.Which is true according to Trevor Hamilton?

A.Fish know where to get food. B.It's easy for fish to live in the wild.

C.A good memory can make fish safer in the wild. D.Fish are often in danger when they look for food.

5.Where does this article probably come from?

A.A story book. B.A science magazine. C.A news report. D.A travel book.

Answer

1.B

2.B

3.D

4.C

5.B

【解析】

文章介绍以前人们都认为鱼类的记忆只能保持7秒钟，但是实验表明其实它们可以有长达12天的记忆，好的记忆有助于鱼在野外生存。

1.

推理判断题。根据上文It's a common belief that fish can't remember anything for longer than seven seconds. It may seem sad to think that every moment in their lives would be like seeing the world for the first time.这是一个普遍的信念，鱼不能记住任何东西超过7秒。人们认为它们生命中的每一刻都像第一次看到这世界一样，这似乎是令人悲伤的。可知我们经常为鱼感到难过，因为他们记忆时间很短，什么都记不起来了，故选B。

2.

细节理解题。根据上文A new study has found that fish have much better memories than we used to think. 一项新的研究发现，鱼的记忆比我们以前想象的要好得多。可知实验的目的是弄清鱼是否有更好的记忆。故选B。

3.

词句猜测题。A. 一种鱼食；B. 一种藏身之处；C.盛水的容器；D.一个养鱼的容器。根据下文They took the fish out and then waited for 12 days before putting them back in the tank again. 他们把鱼拿出来，等了12天再把它们放回……里。可知tank为养鱼的容器，故选D。

4.

推理判断题。根据上文If fish are able to remember that a certain area contains(容纳) safe food, they will be able to go back to that area without putting their lives in danger如果鱼能记住某一地区有安全食物，它们就能回到那个地区，而不会危及它们的生命，可知如果它们有记忆，记得在哪里能得到食物，就能生存，故选C。

5.

推理判断题。A.一本故事书；B.一本科学杂志C.一篇新闻报道；D.一本旅行书。本文主要讲了科学家用实验表明其实鱼的记忆不是仅有7秒，它们可以有长达12天的记忆，好的记忆有助于鱼在野外生存。所以由此推断这篇文章来自一本科学杂志。故选B。