in the ocean, it becomes powerless once it is on the beach. A．However a whale is powerfulB．However powerful a whale is C．Whatever a powerful whale isD．Whatever powerful a whale is 题目和参考答案——青夏教育精英家教网—

题目内容

_______in the ocean, it becomes powerless once it is on the beach.

A．However a whale is powerful	B．However powerful a whale is
C．Whatever a powerful whale is	D．Whatever powerful a whale is

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Millions of people all over the world use the word OK. In fact, some people say the world. OK means all right or acceptable it expresses agreement or approval.

______ .Some people say it came from the Native American Indian tribe known as the Choctaw. The Choctaw word “oken” means the same as the American word “okay”. Experts say early explorers in the American West spoke the Choctaw language in the 19^th century.

But many people doubt this. Language expert Allen Walker Read wrote about the word OK in reports published in the 1960s. He said the word began being used in the 1830s. _____.Some foreign –born people wrote “all correct” as “o-l-l k-o-r-r-e-c-t”, and used the letters O.K. Other people say a railroad worker named Obadiah Kelly invented the word long ago. They said he put the first letters of his names--- O and K --- on each object people gave him to send on the train.

___ The organization supported Martin Van Buren for president in 1840. They called their group the OK Club. The letters were taken from the name of the town where Martin Van Buren was born--- Old Kinderhook, New York.

Then there is the expression A-OK. It is a space-age expression. It was used in 1961 during the flight of astronaut Alan Shepard. He was the first American to be launched into space. His flight ended when his spacecraft landed in the ocean, as planned. Shepard reported, “Everything is A-OK.”____ One story says it was first used during the early days of the telephone to tell an operator that a message had been received.

There are also funny ways to say okay. ____ .These expressions were first used in the 1930s. Today, a character on the American television series, “The Simpsons”, says it another way. He says okely-dokely.

Some people say okey-dokey or okey-doke.

Still others say a political organization invented the word.

Therefore, it has become popular in that area from then on.

But many experts don’t agree on what the expression means.

Language experts do not agree about where the word came from.

It was a short way of writing a different spelling of the words “all correct”.

However, some exerts say the expression did not begin with the space age.

Scientists in Israel have discovered a new way to test for water pollution by "listening" to what the plants growing in water have to say．By shining a laser beam(激光束) on the tiny pieces of algae(海藻) floating in the water, the researchers said they hear sound waves that tell them the type and amount of pollution in the water．

"It is a red light, telling us that something is beginning to go wrong with the quality of water," said Zvy Dubinsky, an aquatic biologist at Israel's Bar Ilan University．"Algae is the first thing to be affected by a change in water quality．"

As water sources deteriorate worldwide, the testing of algae could be used to monitor water quality faster, more cheaply and more accurately than techniques now in use, Dubinsky said．The secret is to measure the rate of photosynthesis(光合作用) in the algae, meaning the plant's ability to transform light into energy．During photosynthesis, plants also release oxygen into the air．

Dubinsky's technique is easy to perform because of the over-abundance of algae in the planet's water．Most of the oxygen in the atmosphere comes from algae．A prototype tester shoots a laser beam at water samples to stimulate photosynthesis in the algae．But not all of the laser's heat is used．

Depending on the condition of the algae and the rate of photosynthesis, some of the heat is shot back into the water, creating sound waves, Dubinsky said．With a special underwater microphone, researchers are able to analyze the strength of the sound waves and determine the health of the algae and the condition of the surrounding water．

"Algae suffering from lead poisoning, like waste discharged from battery and paint manufacturing plants, will produce a different sound than those suffering from lack of iron or exposure to other toxins," said researcher Yulia Pinchasov．

72．To study water quality, scientists choose algae mainly because ．

A．algae is most easily affected by pollution

B．most oxygen is produced by algae

C．the amount of algae is decreasing

D．algae is a kind of plant floating in the water

73．When Dubinsky studied water quality, he mainly focused on ．

A．the amount of laser used by algae

B．the rate of photosynthesis in the algae

C．the condition of the algae

D．the heat of laser used by algae

74．After the study, scientists proved that ．

A．the increase in population is caused by lack of water

B．global warming causes water resources to reduce worldwide

C．algae can show the type and amount of pollution in the water

D．algae is dying out in the ocean around the world

75．What would be the most suitable title for the passage?

A．Water pollution is reduced with the growth of algae

B．Pollution makes it hard for plants to make photosynthesis

C．Water pollution affects the growth of marine plants

D．Scientists listen to plants to find pollution

Plastics are considered one of the most serious pollutants causing environmental problems. The garbage containing plastics end up in the waterways that eventually flow into the oceans. Accumulation (聚集)of plastic in the ocean endangers marine life and pollutes the water.
Does a plastic continent exist? Yes, a plastic continent does exist and was discovered by Captain Charles Moore a decade ago. The plastic continent is twice the size of Britain and it is the region between the Hawaii Islands and California in the central Pacific Ocean.
One of the causes of the lack of marine life in this region is due to pollution and pollutants are none other than plastics. Captain Charles Moore believes plastic waste started accumulating in the 1950s.
The plastic continent is the man-made continent of floating plastic waste. The fisher men and the sailors have avoided this region for years. The reasons are:
1. There are no fish here because of the lack of nutrients.
2. The zone also lacks the wind that is essential for sailing.
To do research on the ocean pollution, Captain Moore founded Algalita Marine Research Foundation. Other organizations such as Greenpeace supported his cause. The reports of The United Nations Environment Program show that millions of seabirds and marine animals are dying due to the invasion(入侵)of plastics. The waste plastics can be recycled, but in fact they are being thrown into the oceans. The marine animals mistake these for food and eat them. This leads to their death that affects the marine food chain.
To save the oceans from the plastic continent you need to reduce the use of plastics, reuse plastic bags and recycle plastics.
【小题1】 What can we learn from the first paragraph?

A．A plastic continent does exist in the Pacific Ocean

B．Endangered marine life is well protected.

C．Plastics are one of the main causes of water pollution.

D．Plastics should be forbidden in people’s daily life.

【小题2】 What is the direct influence of the plastic continent?

A．Local fishermen have to fish in other areas.

B．The water becomes shallow and fish have to move away.

C．The wind is too strong there and it makes sailing more difficult.

D．It makes people realize the importance of protecting the environment.

【小题3】 It is implied that the work of plastic recycling proves to be ______.

【小题4】What can we learn from the passage?

A．Many marine animals are dying due to the broken marine food chain.

B．Captain Moore founded Greenpeace to do research on the ocean pollution.

C．The marine animals have no choice but to eat plastics for lack of food.

D．There are three ways to prevent the oceans from becoming a plastic continent.

Dr．Sylvia Earle wants you to stop eating fish．It’s not because fish are endangered, though wild fish stocks in many oceans are very low．It’s not because they’re bad for you, though fish in many areas are exposed to poisonous substances in the water．It’s because they’re smart．
“Fish are sensitive, they have personalities,” says the marine biologist．For Earle, eating a fish would be like eating a dog or a cat．“I would never eat anyone I know personally.”
There’s a lot more to fish than meets the eye: they talk to each other, they like to be touched, and they engage in behavior that can seem very human．They can remember things and learn from experience．Earle and a growing number of animal rights activists see these as strong arguments against eating fish altogether．
The activists also point out that fish feel pain and fish suffer horribly on their way from the sea to the supermarket．“While it may seem obvious that fish are able to feel pain, like every other animal, some people think of fish as swimming vegetables,” says Dr．Lynne Sneddon．“Really, it’s kind of a moral question．Is the enjoyment you get from fishing (or eating fish) more important than the pain of the fish?”
Fishermen and (fried) fish lovers are doubtful．“I’ve never seen a smart fish,” says Marie Swaringen as she finishes off a plate of fish at a Seattle seafood restaurant．“If they were very smart,
they wouldn’t get caught.”
“For years, everyone’s been telling us to eat fish because it’s so good for us,” says another diner．“Now I’ve got to feel guilty while I’m eating my fish? What are they going to think of next? Don’t eat salad because cucumbers have feelings?”
64．Dr．Sylvia Earle discourage people from eating fish because _____________.
A．there are not that many wild fish in the ocean
B．fish actually are sensitive and have personalities
C．some ocean fish contain poisonous substances
D．fish are like dogs or cats that people know personally
65．We can infer from the passage that _____________.
A．all people don’t agree with the idea to stop eating fish
B．people will be persuaded not to eat fish in the future
C．stopping eating fish will lead to people’s not eating vegetables
D．we shouldn’t care too much about the feeling of fish
66．By saying “There’s a lot more to fish than meets the eye,” the writer means ____________.
A．there are far more fish than other animals in the world
B．there are more fish in the world than people can see
C．people can see more fish if they pay more attention
D．fish are not that simple as they appear to people’s eyes
67．What is the writer’s attitude towards people eating fish?
A．Neutral. B．Indifferent. C．Approving. D．Opposed．

Sea turtles have been on Earth for millions of years, but they may soon die out. The main 1 to them is people who kill them for food, according to Dr. Wallace J. Nichols of the University of California.

But the latest news may 2 turtle hunting: Dr. Nichols has found that sea turtles 3 a lot of pollution from the ocean. This pollution is unhealthy for both turtles and humans. It can cause __4__ damage to their bodies and lead to death. Research shows that many people get sick and even die from eating sea turtle meat.

In the US, most people have never eaten turtle. This is because turtles are 5 by the United States law, which makes it 6 to harm or kill these amazing animals. “But many people in other countries still eat them,” explains Nichols. “Our first 7 was to save turtles; now we must save 8 too.”

Davis said he also wants to send out a bigger 9 that we should protect the oceans. “The health of the ocean, animals in the ocean, and our own health are all 10 . A clean ocean is really good for us too because of the food we eat from there.”

1.A. doubt B. stream C. danger D. worry

2.A. accelerate B. slow C. improve D. change

3.A. cause B. expand C. absorb D. reduce

4.A. accidental B. occasional C. unknown D. serious

5.A. qualified B. protected C. restricted D. produced

6.A. impossible B. difficult C. illegal D. abnormal

7.A. goal B. impression C. difficulty D. cost

8.A. Earth B. ocean C. people D. animals

9.A. advertisement B. message C. sign D. problem

10.A. concerned B. disturbed C. developed D. connected

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