【題目】It’s a popular belief that a fish’s memory lasts for only seven seconds. It may seem sad to think that they don’t remember what they’ve eaten or where they’ve been, and they don’t recognize you or any of their friends — every moment in their life 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 a much better memory than we used to think. In fact, certain species of fish can even remember events from as long as 12 days ago.

In the study, researchers from MacEwan University in Canada trained a kind of fish called African cichlids to go to a certain area of their tank to get food. They then waited for 12 days before putting them back in the tank again.

Researchers used computer software to monitor the fish’s movements. They found that after such a long break the fish still went to the same place where they first got food. This suggested that they could remember their past experiences.

In fact, scientists had been thinking for a long time that African cichlids might have a good memory. An earlier study showed that they behaved aggressively（挑釁地） in front of certain fish, perhaps because they remembered their past “fights”. But until the latest findings, there was no clear evidence.

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 safe food, they will be able to go back to that area without putting their lives at risks,” lead researcher Trevor Hamilton told Live Science.

For a long time, fish were placed far below chimpanzees, dolphins and mice on the list of smart animals. But this study has given scientists a new understanding of their intelligence.

【1】What is the article mainly about?

A. Fish having very bad memories.

B. Fish being smarter than we thought.

C. How fish improve their memory.

D. What we can learn from fish.

【2】According to the article, people used to believe that _______.

A. fish could only remember part of their past experiences

B. fish could remember things that happened 12 days ago

C. a fish’s memory lasted for only seven minutes

D. fish didn’t recognize any of their friends

【3】How can fish benefit most from a good memory? They can remember _______.

A. where to get food and survive

B. their enemies and fight

C. where to escape to when in danger

D. their friends and help each other

【4】Which of the following is TRUE according to the passage?

A. Fish behave aggressively in a fight.

B. Fish can remember more.

C. Fish don’t belong to the list of smart animals.

D. Only African cichlids have a good memory.

【答案】

【1】B

【2】D

【3】A

【4】B

【解析】

試題分析：本文講述了一項(xiàng)新的研究發(fā)現(xiàn)，魚的記憶力比我們過(guò)去認(rèn)為的要好得多。

【1】B 主旨大意題。根據(jù)第二段第二句A new study has found that fish have a much better memory than we used to think.（一項(xiàng)新的研究發(fā)現(xiàn)，魚的記憶力比我們過(guò)去認(rèn)為的要好得多）；根據(jù)文章最后一段For a long time, fish were placed far below chimpanzees, dolphins and mice on the list of smart animals. But this study has given scientists a new understanding of their intelligence.（很長(zhǎng)時(shí)間，魚被放置在遠(yuǎn)遠(yuǎn)低于黑猩猩，海豚和老鼠的名單上，但是這項(xiàng)研究使科學(xué)家們對(duì)他們的智力有了新的認(rèn)識(shí)。）可知，B項(xiàng)“魚比我們認(rèn)為的聰明”是文章的大意。

【2】D 細(xì)節(jié)理解題。根據(jù)第一段中they don’t recognize you or any of their friends可知，他們不認(rèn)識(shí)你或他們的任何一個(gè)朋友。故選D。

【3】A 細(xì)節(jié)理解題。根據(jù)第四段最后兩句They found that after such a long break the fish still went to the same place where they first got food. This suggested that they could remember their past experiences. （他們發(fā)現(xiàn)，休息這么長(zhǎng)時(shí)間的魚還能回到第一次得到食物的地方。這表明他們可以記住他們過(guò)去的經(jīng)歷。）可知，他們知道在哪里能得到食物和生存。故選A。

【4】B 推理判斷題。根據(jù)第五段最后一句But until the latest findings, there was no clear evidence.（至今沒(méi)有清晰的證據(jù)。）故排除A；根據(jù)最后一段For a long time, fish were placed far below chimpanzees, dolphins and mice on the list of smart animals. But this study has given scientists a new understanding of their intelligence. （很長(zhǎng)時(shí)間，魚被放置在遠(yuǎn)遠(yuǎn)低于黑猩猩，海豚和老鼠的名單上，但是這項(xiàng)研究使科學(xué)家們對(duì)他們的智力有了新的認(rèn)識(shí)。）故排除C；根據(jù)第五段第一句In fact, scientists had been thinking for a long time that African cichlids might have a good memory. （African cichlids有一個(gè)好的記憶，但并未說(shuō)只有African cichlids才有好的記憶。）故排除D。縱觀全文，再根據(jù)第二段第二句A new study has found that fish have a much better memory than we used to think.（一項(xiàng)新的研究發(fā)現(xiàn)，魚的記憶力比我們過(guò)去認(rèn)為的要好得多。）故B項(xiàng)正確。

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