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[主观题]

The water we drink and use is running short in the world.

We all have to learn how to stop wasting our limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done in 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 factory. There it can be filtered and treated with chemicals so that it can be used again, just as it were fresh from a spring.

But even if every large city purified and reused its water, we still would not have enough. Then we could turn to the oceans. All we’d have to do to make use of the seawater on earth is to get rid of the salt.

This process is called desalinization, and it is already in use in many parts of the world.

The way to stop wasting our limited 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

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更多“The water we drink and use is running short in the world.”相关的问题

第1题

The story does not say this, but from what we have read, we can tell that ______ .A.you ge

The story does not say this, but from what we have read, we can tell that ______ .

A.you get much hungrier in space than you do on the earth

B.you can't have water to drink in a spaceship

C.astronauts must learn many new and different things

D.you can't eat anything in a spaceship

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第2题

根据以下内容回答下列各题, The water we drink and use is running short in the world. We all
have to learn how to stop wasting our limited water. One of the steps we should take is to find ways of reusing it. Experiments have already been done in 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 factory. There it can be filtered and treated with chemicals so that it can be used again, just as it were fresh from a spring. But even if every large city purified and reused its water, we still would not have enough. Then we could turn to the oceans. All wed have to do to make use of the seawater on earth is to get rid of the salt. This process is called desalinization, and it is already in use in many parts of the world. The way to stop wasting our limited 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

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第3题

Our boat floated on (漂流) ,between walls of forest too thick to allow us a view of the la

Our boat floated on (漂流) ,between walls of forest too thick to allow us a view of the land we were passing【21】though we knew from the map that our river must from time to time be passing through chains of hills.【22】did we find a place where we could have landed. So we stayed in the boat hoping that we【23】the sea, a friendly fisherman would pick us up and take us to the civilization.

We lived【24】fish, any fruit and nuts we could pick up out of the water. As we had no fire, we had to eat everything,【25】the raw fish. I had never tasted raw fish before, and I must say I did not much enjoy the【26】: perhaps sea-fish which do not live in the mud are less tasteless. As for water, there was a choice: we could drink muddy river water,【27】die of thirst. We drank the water. Men who have just escaped what had appeared to be certain death lose all worries about such small things as diseases caused by dirty water. In fact, none of us suffered from any illness【28】.

One day we passed another village, but fortunately nobody saw us. We did not wish to risk【29】prisoners a second time; we might not be so lucky【30】escape in a stolen boat again.

(56)

A.in

B.down

C.along

D.through

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第4题

一Wouldyoulikesomethingto drink一Yes.Some__.please()

A.potatoes

B.water

C.read

D.pples

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第5题

The main idea of the whole story is that ______ .A.there is more food and water in space t

The main idea of the whole story is that ______ .

A.there is more food and water in space than on earth

B.eating and drinking in space is a special problem

C.astronauts can never eat or drink in a spaceship

D.there is no food or water in a spaceship

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第6题

下列提建议的句子错误的是()

A.Would you like swimming with me this afternoon

B.What about going for a picnic with us

C.Why not you go to school with her

D.Why don't you drink any water

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第7题

Over the past decade,many companies had perfected the art of creating automatic behaviors-

Over the past decade, many companies had perfected the art of creating automatic behaviors-habits-among consumers. These habits have helped companies earn billions of dollars when customers eat snacks or wipe counters almost without thinking, often in response to a carefully designed set of daily cues.

"There are fundamental public health problems, like dirty hands instead of a soap habit, that remain killers only because we can't figure out how to change people's habit," said Dr. Curtis, the director the Hygiene Center at the London School of Hygiene & Tropical Medicine. " We wanted to learn from private industry how to create new behaviors that happen automatically. "

The companies that Dr. Curtis turned to-Procter & Gamble, Colgate-Palmolive and Unilever-had invested hundreds of millions of dollars finding the subtle cues in consumers' lives that corporations could use to introduce new routines.

If you look hard enough, you'll find that many of the products we use every day-chewing gums, skin moisturizers, disinfecting wipes, air fresheners, water purifiers, health snacks, teeth whiteners, fabric softeners, vitamins are results of manufactured habits. A century ago, few people regularly brushed their teeth multiple times a day. Today, because of shrewd advertising and public health campaigns, many Americans habitually give their pearly whites a cavity- preventing scrub twice a day, often with Colgate, Crest or one of the other brands.

A few decades ago, many people didn't drink water outside of a meal. Then beverage companies started bottling the production of far-off springs, and now office workers unthinkingly sip bottled water all day long. Chewing gum, once bought primarily by adolescent boys, is now featured in commercials as a breath freshener and teeth cleanser for use after a meal. Skin moisturizers are advertised as part of morning beauty rituals, slipped in between hair brushing and putting on makeup.

"Our products succeed when they become part of daily or weekly patterns", said Carol Berning, a consumer psychologist who recently retired from Procter & Gamble, the company that sold $76 billion of Tide, Crest and other products last year. "Creating positive habit is a huge part of improving our consumers' lives, and it's essential to making new products commercially viable. "

Through experiments and observation, social scientists like Dr. Berning have learned that there is power in tying certain behaviors to habitual cues through ruthless advertising. As this new science of habit has emerged, controversies have erupted when the tactics have been used to sell questionable beauty creams or unhealthy foods.

According to Dr. Curtis, habits like hand washing with soap______.

A.should be further cultivated

B.should be changed gradually

C.are deeply rooted in history

D.arc basically private concern

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第8题

Everything we eat and drink contains some salt; we can meet the body' s need for it from n
atural sources without turning ______ the salt bottle.

A.up

B.to

C.on

D.over

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第9题

Human beings need to drink for their survival. Water ranks【61】on the list of all-time safe
fluids. But not all water is as safe as once【62】. Recent tests of water fountains in several U. S. cities show that many fountains give water containing large【63】of lead (铅) , a poisonous metal. A recent study of 900 water fountains in Los Angeles【64】that half of the fountains【65】contained higher amounts of lead than the【66】the experts consider【67】. In other cities【68】results of tests were announced; too much lead in many, though【69】, drinking fountains. Water doesn't normally contain any lead, but when it passes through pipes, it can【70】. People who drink the water【71】the lead. An adult' s body passes most of the lead【72】the body, but children' s【73】retains more than half the lead【74】. This makes children more likely to be affected. Lead can damage the kidneys, cause【75】and impair learning and memory.【76】four million children in U. S. A. already have high levels of lead in their bodies. Most of this lead comes from【77】polluted with the metal. They can【78】it up from eating dirt or paint chips containing lead. In【79】to limit the lead in water fountains, officials recently suggested that fountains【80】to have too much lead be replaced or repaired. And that certainly requires a lot of money.

(61)

A.high

B.highly

C.higher

D.height

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第10题

Anyone who has ridden on a railroad train knows how rapidly another train【36】by when it is
traveling in the【37】direction and conversely how it may look almost【38】when it is moving in the same direction.【39】a train at a station starts to move forward【40】gently that passengers feels no backward movement【41】.Then if they happened to【42】the window and see another train slide past on the next track, they have no way of knowing【43】train is in motion and which is at rest;【44】can they tell how fast either one is moving or in which direction The only way they can judge their【45】is by looking out the other side of the car for some fixed body of reference【46】the station platform. or a single fight. Newton was【47】these tricks of motion, only he thought in terms of ships. He knew that on a calm day at sea a sailor can shave himself or drink soup as【48】as when his ship is lying motionless in harbor. The water in his basin, the soup in his bowl, will remain【49】whether the ship is making five knots, 15 knots or 25 knots. So【50】he looks hard at the sea it will be【51】for him to know how fast his ship is moving or indeed if it is moving at all. Of course, if the sea should get rough or the ship changes course suddenly,【52】he will sense his state of motion. But even supposing that we have the idealized conditions of a glass calm sea and a silent ship, nothing that happens below decks -- no amount of observation or mechanical experiment performed inside the ship --will reveal its velocity through the sea. The physical【53】based on these facts was formulated by Newton in 1687."The motions of bodies included in a given space , he wrote, "are the same【54】themselves, whether that space is at rest or moves uniformly【55】in a straight line."

(66)

A.passes

B.goes

C.flashes

D.moves

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