题目内容：
阅读下面这篇短文，回答题：(1)第23—26题要求从所给的6个选 项中为第1-4段每段选择1个正确的小标题；
(2)第27—30题要求从所给的6个选 项中选择4个正确选项，分别完成每个句子。请将答案涂在答题卡相应的位置上。
The DrinkYnur Body Needs Most 1．Ourbodies are estimated to be about 60% to 70% water．Blood is mostly water, andour muscles, lungs, and brain all contain a lot of water．Water is needed toregulate 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, removeswaste, and protects our joints and organs.
2．Welose water through urination (排尿), respiration (呼吸),and by sweating．If you are very active, you lose more water than if you do nottake much exercise．Symptoms of mild dehydration (脱水)include chronic pains in joints and muscles, lower back pain,headaches, andconstipation (便秘)．A strong smell to your urine, alongwith a yellow color indicates that you are not getting enough water．Thirst isall obvious sign of dehydration and in fact, you need water long before youfeel thirsty.
3．A goodrole of thumb (好的做法) is to take your body weight in pounds anddivide 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 160pounds, you should drink at least 80 ounces of water per day．If you exerciseyou should drink another 8 ounce glass of water for every 20 minutes you areactive．If you drink coffee or alcohol, you should add at least an equal amountof water．When you are traveling on an airplane, it is good to have 8 ounces ofwater for every hour you are on board the plane.
4．It maybe difficuR to drink enough water on a busy day．Be sure you have water handyat all times by keeping a bottle for water with you when you are working,traveling, or exercising.
If youget bored with plain water, add a bit of lemon for a touch of flavor．There aresome brands of flavored water available, but some of them have sugar orartificial sweeteners that you don't neeD．
Paragraph 1__________ A．Ounces of Water Needed Per Day
B．importanceof Water
C．Compositionof Water
D．Signsof Dehydration
E．Supplyof Water
F．Necessityfor Bringing a Bottle for Water
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