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  3. 共用题干 The Drink Your Body Needs Most1. O

共用题干 The Drink Your Body Needs Most1. O

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问题 共用题干The Drink Your Body Needs Most
1. Our bodies are estimated to be about 60%to 70%water. Blood is mostly water, and our mus- dles,lungs and brain all contain a lot of water. Water is needed to regulate body temperature and to provide the means for nutrients（滋养物）to travel to all our organs. Water also transports oxy-gen to our cells,removes waste,and protects our joints and organs.
2. We lose water through urination（排尿）, respiration（呼吸）, and by sweating. If you are very active,you lose more water than if you do not take much exercise.Symptoms of mild dehydration （脱水）include chronic pains in joints and muscles,lower back pain,headaches,and constipation
（便秘）.A strong smell to your urine,along with a yellow color indicates that you are not getting enough water. Thirst is an obvious sign of dehydration and in fact,you need water long before you feel thirsty.
3 .A good rule of thumb（好的做法）is to take your body weight in pounds and divide that num- her in half. That gives you the number of ounces（盎司）of water per day that you need.For ex-ample,if you weigh 160 pounds,you should drink at least 80 ounces of water per day.If you ex- ercise you should drink another 8-ounce glass of water for every 20 minutes you are active.If you drink coffee or alcohol,you should add at least an equal amount of water. When you are traveling on an airplane,it is good to have 8 ounces of water for every hour you are on board the plane.
4 .It may be difficult to drink enough water on a busy day.Be sure you have water handy at all times by keeping a bottle for water with you when you are working,traveling,or exercising. If you get bored with plain water,add a bit of lemon for a touch of flavor. There are some brands of fla-vored water available,but some of them have sugar or artificial sweeteners that you don't need.Paragraph 3________A: Ounces of water needed per dayB:.Importance of waterC: Composition of waterD: Signs of dehydrationE: Supply of waterF: Necessity for bringing a bottle for water
选项 Paragraph 3________
A: Ounces of water needed per day
B:.Importance of water
C: Composition of water
D: Signs of dehydration
E: Supply of water
F: Necessity for bringing a bottle for water
答案 A
解析 第一段讲到人体约60％～70％是由水组成的；血液大部分都是水，体温的调节，运输滋养物到各个器官，运送氧气到各个细胞，废物排除，人体关节和器官的保护等都离不开水。故本段主要讲的是水对人体的重要性。故选B。


第二段首句讲到我们通过排尿、呼吸和流汗流失水分。第三句开始主要讲的是脱水的表现。它包括关节与肌肉的慢性疼痛、腰痛、头痛、便秘、口渴等。故选D。


第三段首句讲的是人体每天所需的饮水量，即一个人每天所需的基本饮水量单位以盎司计，数量是体重磅数的一半。并介绍了在一些特殊情况下所需的饮水量。


第四段主要讲的是随身携带水瓶及时饮水的必要性。此段首句讲到在繁忙的一天中可能很难补充充足的水分，所以要确保你的手边一直有一瓶水，不管你是在工作、旅游，还是在锻炼，如果嫌水无味，可以加点柠檬。


由第一段“Our bodies are estimated to be about 60% to 70% water. Blood is mostly water”可知，人体约60%～ 70％是由水组成的，而且人体自身的新陈代谢和机体的运行都离不开水，因此人离开水是活不下去的，故选B。


由第二段“Symptoms of mild dehydration（脱水）include chronic pains in joints and muscles, lower back pain, headaches , and constipation（便秘）”可知，人体严重缺水便会产生脱水现象，并伴有关节和肌肉疼痛、背痛等症状。故选A。


由第三段“A good rule of thumb（好的做法）is to take your body weight in pounds and divide that number in half. That gives you the number of ounces（盎司）of water per day that you need.”可知，我们可以把体重用盎司表示出来，盎司的一半就是我们需要的基本饮水量，因此人体每天所需的饮水量与人的体重有密切关系，故选F。


由第四段“It may be difficult to drink enough water on a busy day. Be sure you have water handy at all times by keeping a bottle for water with you when you are working…”可知，在繁忙的一天中可能很难补充充足的水分，所以要确保你的手边一直有一瓶水，不管你是在工作、旅游，还是在锻炼，即使再忙也不要忘了喝水，故选E。
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