1. Our bodies are estimated to be about 60%
to 70% water. Blood is mostly water, and our muscles, 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 oxygen 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 all 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 number in half. That gives you the number of ounces (盎司) of water
per day that you need. For example, if you weigh 160 pounds, you should drink at
least 80 ounces of water per day. If you exercise 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 flavored water available, but some of them have sugar or
artificial sweeteners that you don't need.
填空题
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
Paragraph 1 ______
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Paragraph 2 ______
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Paragraph 3 ______
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Paragraph 4 ______
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A. in your body
B. without water
C. before long
D. for a change
E. on a busy day
F. to your weight
One cannot live ______.
填空题
Dehydration may occur if there is a shortage of water ______.
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The amount of water your body needs per day is related ______.
填空题
Don't forget to drink enough water even ______.