单选题Which of the following questions is answered according to the information given in the passage?A What is the toxin used by the fish killer?B Who first discovered the organism?C How does the fish killer paralyze fish?D How many fishes can the organism k

C

GUATEMALA CITY （Reuters） – A fish that lives in mangrove swamps（红树沼泽）across the Americas can live out of water for months at a time, similar to how animals adapted（适应）to land millions of years ago, a new study shows.

The Magrove Rivulus, a type of small killifish, lives in small pools of water in a certain type of empty nut or even old beer cans in the mangrove swamps of Belize, the United States and Brazil. When their living place dries up, they live on the land in logs（圆木），said Scott Taylor, a researcher at the Brevard Endangered Lands Program in Florida.

The fish, whose scientific name is Rivulus marmoratus, can grow as large as three inches. They group together in logs and breathe air through their skin until they can find water again.

The new scientific discovery came after a trip to Belize.

“We kicked over a log and the fish just came crowding out,” Taylor told Reuters in neighboring Guatgemala by telephone. He said he will make his study on the fish known to the public in an American magazine early next year.

In lab tests, Taylor said he found the fish can live up to 66 days out of water without eating.

Some other fish can live out of water for a short period of time. The walking catfish found in Southeast Asia can stay on land for hours at time, while lungfish found in Australia, Africa and South America can live out of water, but only in an inactive state. But no other known fish can be out of water as long as the Mangrove Rivulus and remain active, according to Patricia Wright, a biologist at Canada’s University of Guelph.

Further studies of the fish may tell how animals changed over time.

“These animals live in conditions similar to those that existed millions of years ago, when animals began making the transition（过渡）from water onto land,” Wright said.

49. The Mangrove Rivulus is a type of fish that _______.

A. likes eating nuts

B. prefers living in dry places

C. is the longest living fish on earth

D. can stay alive for two months out of water

Why is it a problem if all the smaller fish species die?

A. It's not healthy for the environment.

B. People only like to catch big fish.

C. There are too many small fish.

D. The smaller fish can get lost in the lake.

C

People diet to look more attractive. Fish diet to avoid being beaten up, thrown out of their social group, and getting eaten as a result. That is the fascinating conclusion of the latest research into fish behavior. by a team of Australian scientists.

The research team have discovered that subordinate fish voluntarily diet to avoid challenging their larger competitors. “In studying gobies we noticed that only the largest two individuals, a male and female, had breeding (繁殖) rights within the group,” explains Marian Wong. “All other group members are nonbreeding females, each being 5-10% smaller than its next largest competitor. We wanted to find out how they maintain this precise size separation.”

The reason for the size difference was easy to see. Once a subordinate fish grows to within 5-10% of the size of its larger competitor, it causes a fight which usually ends in the smaller goby being driven away from the group. More often than not, the evicted fish is then eaten up.

It appeared that the smaller fish were keeping themselves small in order to avoid challenging the boss fish. Whether they did so voluntarily, by restraining how much they ate, was not clear. The research team decided to do an experiment. They tried to fatten up some of the subordinate gobies to see what happened. To their surprise, the gobies simply refused the extra food they were offered, clearly preferring to remain small and avoid fights, over having a feast.

The discovery challenges the traditional scientific view of how boss individuals keep their position in a group. Previously it was thought that large individuals simply used their weight and size to threaten their subordinates and take more of the food for themselves, so keeping their competitors small.

While the habits of gobies may seem a little mysterious, Dr. Wong explains that understanding the relationships between boss and subordinate animals is important to understanding how hierarchical (等级的) societies remain stable.

The research has proved the fact that voluntary dieting is a habit far from exclusive to humans. “As yet, we lack a complete understanding of how widespread the voluntary reduction of food intake is in nature,” the researchers comment. “Data on human dieting suggests that, while humans generally diet to improve health or increase attractiveness, rarely does it improve long-term health and males regularly prefer females that are fatter than the females’ own ideal.”

65. When a goby grows to within 5-10% of the size of its larger competitor, it .

A. faces danger B. has breeding rights

C. eats its competitor D. leaves the group itself

Which of the following statements can best be inferred from the passage?

A. Fishes only "speak" to communicate with each other.

B. Researches are now being made to study the significance of fish sounds.

C. Sea animals have a sharper hearing ability than men.

D. Sounds made by fish cannot be transmitted through the air.

A、What/on

B、What/for

C、Where/in

D、Who/for

—How delicious the fish is!

—But I don't think it is _______what I cooked yesterday.

A. as better as

B. as well as

C. better than

D. no better than

The best title for the passage can he ______.

A．What Are Futures Used for

B．Who Are the Arbitrageurs, Speculators and Hedgers

C．How to Hedge Risks

D．How to Trade in Futures Market

30． Why can fish swim in the water? Jack's answer is ________ ．

A．fish can't walk on land

B． fish can- t swim on land

C． fish can-t walk in the water

D．fish has no legs or hands

Today a neighbor brought us some fresh fish he had caught on his last boat trip. As thanked him，he said,‘They are not from me; they only come through me.’

At that moment I noticed the similarity between fish and haiku.

Nowadays, if Mom doesn't ever serve fish for dinner at least the kids get a taste of

haiku at school.

For most of us，our first introduction comes from reading translations from Japanese,

which is a bit like comparing sushi to frozen fish sticks. Even with the knowledge of the

exotic, most poets stick to the meat and potatoes of English literature. It often isn’t until we get older that we accept the simple goodness of fish，adding them to the menu more often.

Having acquired a taste for fish and learned how to cook them, one is better able to

appreciate the short form. of haiku. Like fishing, haiku writing can be done with minimal

equipment. A pin or a pen，and a scrap of paper, is enough，but it is tempting to go all out and buy a rod and reel (even study Zen，visit a monastery or take a trip to Japan).

If one goes in for deep sea fishing,a computer and laser printer are soon on the list of 'must haves'.

Like fishing, to catch haiku you have to go where they are. Unlike fish, haiku are

everywhere. Still，you have to know the secret places where they hide and how to get there.

Wearing old comfortable clothes(usually thought of as a meditative state) we look around

just where we are. It does little good to only read of fishing off the coast of Japan when

sitting beside the lake by our own front door. It does help to know which fish are edible and which are not. There are two ways of finding this out. We can either eat everything we catch and publish what feels right, or we can read books containing others’experiences while making up our minds about what kind of fish to go for.

If we compare spending days on rough seas to fish or strolling on the beach writing

haiku; it is very easy for me to decide where my interest lies. Still I do love a fish dinner and I hope my neighbor enjoys my latest poems.

(1). The similarity between fishing and writing haiku the text does NOT mention is

A. the freedom to choose what we do with the product of each activity

B. the delayed appreciation of both activities

C. the thrill experienced when engaging in them

D. the limited resources required for practising them

(2). In paragraph 2，the author refers to sushi_.

A. to point out that the American eat frozen fish sticks more often

B. to contrast it with meat and potatoes

C. to give an example of an exotic dish

D. as a metaphor for original Japanese texts

(3). According to the author, haiku writers have to_·

A. read about the process of haiku writing

B. be observant of what is around them

C. try to have their poems published

D. get acquainted with Zen philosophy

(4). The best title of this text would be_·

A. Something fishy about haiku

B. The forgotten skill of fishing

C. Writing haiku is easy

D. The art of writing haiku

(5). The author's attitude towards haiku is_.

A. positive

B. neutral

C. indifferent

D. negative

阅读文章回答第65~68题C People diet to look more attractive. Fish diet to avoid being beaten up, thrown out of their social group, and getting eaten as a result. That is the fascinating conclusion of the latest research into fish behavior. by a team of Australian scientists.

The research team have discovered that subordinate fish voluntarily diet to avoid challenging their larger competitors. “In studying gobies we noticed that only the largest two individuals, a male and female, had breeding （繁殖） rights within the group,” explains Marian Wong. “All other group members are nonbreeding females, each being 5-10% smaller than its next largest competitor. We wanted to find out how they maintain this precise size separation.”

The reason for the size difference was easy to see. Once a subordinate fish grows to within 5-10% of the size of its larger competitor, it causes a fight which usually ends in the smaller goby being driven away from the group. More often than not, the evicted fish is then eaten up.

It appeared that the smaller fish were keeping themselves small in order to avoid challenging the boss fish. Whether they did so voluntarily, by restraining how much they ate, was not clear. The research team decided to do an experiment. They tried to fatten up some of the subordinate gobies to see what happened. To their surprise, the gobies simply refused the extra food they were offered, clearly preferring to remain small and avoid fights, over having a feast.

The discovery challenges the traditional scientific view of how boss individuals keep their position in a group. Previously it was thought that large individuals simply used their weight and size to threaten their subordinates and take more of the food for themselves, so keeping their competitors small.

While the habits of gobies may seem a little mysterious, Dr. Wong explains that understanding the relationships between boss and subordinate animals is important to understanding how hierarchical （等级的） societies remain stable.

The research has proved the fact that voluntary dieting is a habit far from exclusive to humans. “As yet, we lack a complete understanding of how widespread the voluntary reduction of food intake is in nature,” the researchers comment. “Data on human dieting suggests that, while humans generally diet to improve health or increase attractiveness, rarely does it improve long-term health and males regularly prefer females that are fatter than the females’ own ideal.”

第10题：When a goby grows to within 5-10% of the size of its larger competitor, it .

A． faces danger

B． has breeding rights

C． eats its competitor

D． leaves the group itself