The waters of this great lake, which is also the world's deepest, have been by waste from a chemical factory.A．cleanedB．clearedC．dirtiedD．Thrown 题目和参考答案——青夏教育精英家教网—

题目内容

105. The waters of this great lake, which is also the world's deepest, have been ____ by waste from a chemical factory.

A．cleaned

B．cleared

C．dirtied

D．Thrown

解析

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相关题目

The UN passed a rule in the year 2004 to improve the quality of drink water and reduce deaths caused by drinking unhealthy water each year. The UN has already worked out the specific plan to reduce half of the number, that is, five thousand. The UN announced in the world there are about 1/6 of the world population can't meet the sanitation regulation of drinking water.
The water we drink and use is running short in the world. We all have to learn to stop wasting our quite limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done on this field. Today in most large cities, fresh water is used only once, then it runs into waste system. But it is possible to pipe the used water to a purifying(净化)factory. There it can be filtered(过滤) and treated with chemicals so that it can be used again , just as it were fresh from a spring. But even large cities purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we would have to do to make use of seawater on earth is to get the salt out of it. This method has already been used in many parts of the world.
47. The way to stop wasting water is to ________ .
A. do experiments with water
B. purify the used water and reuse it
C. use fresh water once again
D. make use of seawater
48. The passage tells us how to reuse the used water. Which is the right order of the process?
a. to have the used water filtered b. to put chemical in it
c. to pipe it to the user
d. to pipe the used water to be purified in a factory.
A. dabc B. bcda C. bdca D. dcba
49. There wouldn't be enough water for us if we didn't ________ .
A. turn to the ocean for more water
B. reuse used water and make use of seawater
C. make fresh water from the seawater
D. take steps to reuse all water on earth
50. The word "it" underlined in the last paragraph refers to ________ .
A. the process of collecting salt from the ocean
B. the process of getting rid of the salt in seawater
C. purified water
D. seawater

Using too much water or throwing rubbish into our rivers are clear ways that humans can put our water supply in danger , but we also affect our water supply in less obvious ways. You may wonder how paving(铺砌) a road can lead to less useable fresh water. A major part of the water we use every day is groundwater. Groundwater does not come from lakes or rivers. It comes from underground. The more roads and parking lots we pave the less water can flow into the ground to become groundwater.
Human activity is not responsible for all water shortages(短缺). Drier climates are of course more likely to have droughts(干旱) than areas with more rainfall, but in any case, good management can help to make sure there is enough water to meet our basic needs.
Thinking about the way we use water every day can make a big difference, too In the United States , a family of four can use 1. 5 tons of water a day! This shows how much we depend on water to live, but there’s a lot we can do to lower the number.
You can take steps to save water in your home. To start with use the same glass for your drinking water all day. Wash it only once a day. Run your dishwasher (洗碗机)only when it is full 。Help your parents fix any leaks in your home. You can even help to keep our water supply clean by recycling batteries instead of throwing them away.
【小题1】Which of the following is most likely to lead to less groundwater?

A．Using river water.	B．Throwing batteries away.
C．Paving parking lots.	D．Throwing rubbish into lakes.

【小题2】What can be inferred from the text?

A．All water shortages are due to human behavior.

B．It takes a lot of effort to meet our water needs.

C．There is much we can do to reduce family size.

D．The average family in America makes proper use of water.

【小题3】The last paragraph is intended to .

A．show us how to fix leaks at home

B．tell us how to run a dishwasher

C．prove what drinking glass is best for us

D．suggest what we do to save water at home

【小题4】The text is mainly about .

A．Why paving roads reduces our water

B．how much we depend on water to live

C．why droughts occur more in dry climates

D．how human activity affects our water supply

   It is often necessary to release a fish, that is, set it free after catching, because it is too small, or you just don’t want to take it home to eat. In some cases, releasing fish is a good measure that will help keep fish variety and build their population size. The Department of Game and Inland Fisheries (DGIF) encourages fishermen who practice catch-and-release fishing to use a few simple skills when doing so. The advice provided below will help make sure that the fish you release will survive (存活) to bite again another day.
—When catching a fish, play it quickly and keep the fish in the water as much as possible.
Don’t’ use a net in landing the fish and release it quickly to prevent it from dying.
—Hold the fish gently. Do not put your fingers in its eyes. Don’t wipe the scales (鱼鳞) off the   fish because it might cause it to develop a disease and reduce its chance of survival.
—Remove your hook (鱼钩) quickly. If the hook is too deep or hooked in the stomach, cut the   line and leave the hook in. The hook left inside will cause no serious problem to the fish.
—Take good care of the fish by moving it gently in water . Release the fish when it begins to   struggle and is able to swim.
—Do not hold fish in a bucket or some other containers and later decide to release it. If you are   going to release a fish, do so right away.
With a little care and by following the suggestions given above, you can give the released fish a better chance of survival.
【小题1】 People sometimes set a fish free after catching it because they _________

A．don’t want it to die	B．hope it will grow quickly
C．don’t want to have it as food	D．want to practice their fishing skills

【小题2】Which of the following will probably make a fish ill?

A．Taking the hook off it.	B．Removing its scales.
C．Touching its eves	D．Holding it in your hand.

【小题3】 A proper way to release a fish is to _________.

A．move it in water till it can swim	B．take the hook out of its stomach
C．keep it in a bucket for some time	D．let it struggle a little in your hand

【小题4】What is the purpose of the test?

A．To show how to enjoy fishing.	B．To persuade people to fish less often.
C．To encourage people to set fish free.	D．To give advice on how to release fish.

第三部分阅读理解（共20小题；每小题2分，满分40分）
阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上将该项涂黑。
Andy rode slowly on his way to school, day-dreaming about the fishing trip that his father had promised him. He was so busy dreaming about all the fish he would catch that he was unaware of everything else around him.
He rode along until a strange around drew him to the present. He came to a stop and looked curiously up to the heavens. What he saw shocked him. A huge swarm of bees filled the sky like clack cloud and the buzzing mass towards him.
With no time to waste. Andy sped off in the opposite direction, riding furiously without knowing how to escape the swarm. With a rapidly beating heart and his legs pumping furiously, he sped down the rough road. As the bees came closer, his panic increased. Andy knew that he was sensitive to bee stings(蜇). The last sting had landed him in hospital—and that was only one bee sting! He had been forced to stay in bead for two whole days. Suddenly, his father’s words came to him. “When you are in a tight situation, don’t panic. Use your brain and think your ways out of it. ”
On a nearby hill, he could see smoke waving slowly skywards form the chimney of the Nelson family home. “Bees don’t like smoke,” he thought. “They couldn’t get into the house.”Andy raced towards the Nelson house, but the bees were gaining ground. Andy knew be could not reach the house in time. He estimated that the bees would catch up with him soon.
Suddenly, out of the corner of his eyes, he spotted a small dam used by Mr. Nelson to irrigate his vegetable garden. Off his bike and into the cool water he dived, disappearing below the surface and away from the savage insects. After holding his breath for as long as he could, Andy came up for air and noticed the bees have gone. Dragging himself out of the date, he struggled up the hilly slope and rang the doorbell. Mr Nelson took his inside and rang his mother.
“You’ll really need that fishing break to help you recover,”laughed his mother with relief. “Thank goodness you didn’t panic! But Andy did not hear her. He was dreaming once again of the fish he would catch tomorrow. ”
1. Why did Andy fail to notice the swarm of bees earlier?
A. He was riding to school.
B. He was listening to a strange sound.
C. He was going fishing with his father.
D. He was lost in the thought of the fishing trip.
2. Which of the following is NOT mentioned about the swarm of bees in the passage?
A. They crowded like a black cloud.
B. They shocked and terrified Andy.
C. They tried to attack Andy in a mass.
D. They made Andy stay in hospital for two days.
3. How did Andy avoid the bees in the end?
A. He asked Mr. Nelson in help.
B. He hid himself under the water.
C. He rushed into the Nelson house.
D. He rode off in the oppossnte ditcction.
4. Which of he tollowing can best describe Andy’s escape from the becs?
A. No pain no gains.
B. Once bitten, twice she
C. Where there is a will, there is a way.
D. In time of danger, one’s mind works fast.

When Ben Franklin was very only a boy, he always wanted to know about things. He was always asking his father and brothers “What?” and “How?” and “Why?”
They couldn’t always tell him what he wanted to know.
When they couldn’t tell him, Ben tried to find out for himself.
Many times Ben did find out things that no one knew before. The other boys would say, “That’s Ben Franklin! He’s always finding out something new! ”
Ben lived close to the water. He liked to go there to see the boats. He saw how the wind blew them across the water.
One day Ben said to himself, “Why can’t the wind help me float across the water? And I’m going to try.” Ben got his big kite. He took hold of the kite string and ran with it. The wind took the kite up into the air. Then Ben jumped into the water.
The wind blew the kite high into the air. Ben began to float across the water. Soon he was on the other side, and he had not worked at all.
One boy shouted, “Look at Ben floating across the water! His kite takes him to the other side without any work!”
“Yes”, said another. “He’s always finding new ways to do things.”
【小题1】When he was only a child, Ben _____.

A．liked to fly a kite by himself

B．always asked easy questions

C．always liked to play with water

D．always liked to find out how things worked

【小题2】His father and brothers _____.

A．couldn’t answer all his questions

B．could answer all his questions

C．tried hard to find out something new for him

D．were too busy to answer his questions

【小题3】How did Ben Franklin float across the water?

A．The other boy took him across it.

B．The water carried him across it.