I am thirsty. Could you let me have（）coke

A:little B:any C:some D:other

If you suffer from diabetes, talk to your doctor about what kind of exercise is right for you. The type of exercise you can do will depend on whether you have any other health problems. Most doctors recommend aerobic exercise, which makes you breathe more deeply and makes your heart work harder. If you have problems with the nerves in your feet or legs-, your doctor may want you to do a type of exercise that won’t put stress on your feet.
There are some risks to exercising for people with diabetes, but the benefits far out-weigh the risks. Exercise changes the way your body reacts to insulin. Regular exercise makes your body more sensitive to insulin (胰岛素 ), and your blood sugar level may get too low—called hypoglycemia (血糖过少)—after exercising. You may need to check your blood sugar level before and after exercising. Your doctor can tell you what your blood sugar level should be before and after exercise. It is especially important to watch your blood sugar level if you exercise in really hot or cold conditions, because the temperature changes how your body absorbs insulin.
If your blood sugar level is too low or too high right before you plan to exercise, it’s better to wait until the level improves. It is especially important to watch your blood sugar level if you exercise in really hot or cold conditions, because the temperature changes how your body absorbs insulin. Also, you may feel a change in your heartbeat, suddenly sweat more, feel shaky or anxious, or feel hungry. When you feel this way, you should stop exercising and follow your doctor’s advice about how to treat hypoglycemia.
Many people with diabetes have problems with the nerves in their feet and legs, sometimes without even knowing it. So it’s important that you wear shoes that fit well and have plenty of room when you exercise. Otherwise you could develop blisters or other sores on your feet that can lead to infection and other problems. You should check your feet before and after you exercise to make sure there are no blisters or other sores.
When you’re exercising, your body uses more fluid to keep you cool. By the time you feel thirsty, you may already be getting dehydrated. Dehydration ( not enough fluid in your body) can affect your blood sugar level. Drink plenty of fluid before, during and after exercise.
What else should diabetic patients pay attention to

A:They should drink as much water as possible when they feel thirsty. B:They should continue exercising despite sore feet. C:They had better not exercise indoor. D:They had better drink at different stages of their exercises.

Text 4
America is the land of the automobile. This country has only 6 percent of the world’s population but 46 percent of the world’s cars. Right now, there are 97 million privately owned cars consuming ’75 billion gallons of gasoline and traveling an estimated 1,000 billion miles, a year. The figures also affirm something we know every time we refill our gasoline tank. The automobile is a very thirsty piece of technology. Of the total petroleum supply in the United States, 30 percent goes to quench that thirst. Every year for each passenger car, about 800 gallons of gasoline are consumed.
Other aspects of our commitment to the automobile also bear mentioning here, it takes a great deal of energy to manufacture one automobile--about 150 million BTUs of energy. This is equivalent to 1,200 gallons of gasoline, enough to run a car for about 16,000 miles. We expend energy in the process of shipping cars from factories to showrooms, displaying them for sale hand making replacement parts for repairs. One out of six jobs in the nation is associated with the automobile business. About two gallons of gasoline are consumed in the process of making every ten gallons that are pumped into an automobile’s gas tank.
Building highways and parking lots has used up much of our land. It has been estimated that we have paved over 21,000 square miles of this country’s surface, most of it to accommodate the automobile. The automobile is also the largest contributor to our nation’s air pollution problem and a very serious one because most of its pollutants are emitted in our large metropolitan areas.
Aside from the great impact that would occur if everyone seriously practised conservation, one should stop and think about his own casual use of the automobile. There are numerous situations where better planning and awareness could really make a difference in energy savings and dollars. Because the automobile uses the largest percentage of energy in an average American family’s energy budget and almost half of the dollars, the impetus for savings is tremendous.

A:Americans Annual Consumption of Gas B:Importance of Energy Conservation C:Energy Problems D:Automobile-Americas Thirsty Machine

In many places water is becoming scarcer. Treating it as a right makes the scarcity worse. Ideally, efficient water use would be encouraged by charging for it, but attempts to do so have mostly proved politically impossible. A more practicable alternative is a system of tradable waterusage rights.
As our explains, many water problems have global causes: population growth, climate change, urbanization and, especially, changing diets. It takes 2,000 liters of water to grow a kilo of vegetables but 15,000 liters to produce a kilo of beef—and people are eating more meat. The problems also have global implications. Without a new green revolution, farmers will need 60% more water to feed the 2 billion extra people who will be born between now and 2025.
Yet there is, globally, no shortage of water. Unlike other natural resources (such as oil), water cannot be used up. It is recycled endlessly, as rain, snow or evaporation. On average, people are extracting for their own uses less than a tenth of what falls as rain and snow each year.
The central problem is that so much water is wasted, mainly by farmers. Agri-culture uses three-quarters of the world’s water. Because water is usually free, thirsty crops like alfalfa (苜蓿) are grown in arid California. Wheat in India and Brazil uses twice as much water as wheat in America. Dry countries like Pakistan export textiles though a 1 kg bolt of cloth requires 11,000 liters of water.
Any economist knows what to do: price water to reflect its value. But decades of trying to do that for agriculture have run into powerful resistance from farmers. They reject scarcity pricing for the reason that water falls from the skies. No government owns it, so no government should charge for it.
There is a way out. Australian farmers have the right to use a certain amount of water free. They can sell that right to others. But if they want more water themselves, they must buy it from a neighbor. The result of this trading is a market that has done what markets do: allocate resources to more productive use. Australia has endured its worst drought in modern history in the past ten years. Water supplies in some farming areas have fallen by half. Yet farmers have responded to the new market signals by switching to less thirsty crops and kept the value of farm output stable. Water productivity has doubled. Australia’s system overcomes the usual objections because it confirms farmers’ rights to water and lets them have much of it for nothing.
What causes the central problem that so much water is wasted mainly by farmers

A:Because farmers can use water for agriculture free. B:Because agriculture uses 75% of the world’s water. C:Because most farmers are not aware of water shortage. D:Because too many thirsty crops are grown in dry countries.

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A:Doctors know more about chronotherapeutics than before. B:Doctors in the U. S used to be thirsty to know more about the new medical field. C:The researchers’ insights are providing new strategies to prevent common killers. D:The strategic use of time in medicine attracts more attention in the medical circle in the U. S.

I am thirsty. Could you let me have（）coke

A:little B:any C:some D:other

I am thirsty. Could you let me have（）coke

A:little B:any C:some D:other