【導(dǎo)讀】overwhelming.

　　

【正文】 r bone density.，因此選 [C]。 5. [C] [A]的表述 是錯(cuò)的，從第一段可以看出經(jīng)常飲用可樂(lè)會(huì)使年長(zhǎng)的女性骨質(zhì)中的礦物密度變低；第四段提到 the mechanism is still unclear,所以不符合文中給出的信息； [C]是正確的，文章第二段有說(shuō)到。 [D]選項(xiàng)的表述也是不正確的，因?yàn)楸M管經(jīng)常飲用可樂(lè)不會(huì)像影響女性那樣、嚴(yán)重的影響男性的鈣的吸收，但是它依然影響是有的。所以選 [A]。 2020年考研英語(yǔ)全題型高分強(qiáng)化教程 (三 ) Part B 觀點(diǎn)與例證 Directions: You are going to read a text about the advantages of drinking water, followed by a list of choices. Choose the most suitable one from the list A～ F for each numbered subheading (1～ 5). There is one extra choice which you do not need to use. Water is a fundamental part of our lives. It is easy to fet how pletely we depend on it. Human survival is dependent on waterwater has been ranked by experts as second only to oxygen as essential for life. The average adult body is 55 to 75% water. 2/3 of your body weight is water (40 to 50 quarts). A human embryo is more than 80% water. A newborn baby is 74% water. Everyday your body must replace 2 1/2 quarts of water. The Water you drink literally bees you! Since such a large percentage of our bodies is water, water must obviously figure heavily in how our bodies function. We need lots of fresh water to stay healthy. Aside from aiding in digestion and absorption of food, water regulates body temperature and blood circulation, carries nutrients and oxygen to cells, and removes toxins and other wastes. This body water also cushions joints and protects tissues and ans, including the spinal cord, from shock and damage. Conversely, lack of water (dehydration) can be the cause of many ailments. In his book, Your Body39。s Many Cries for Water, Dr. Fereydoon Batmanghelidj noted that chronic dehydration may cause certain problems for the body, including hypertension, asthma, allergies, and migraine headaches. Every process in our body occurs in a water medium. We can exist without food for 2 months or more, but we can only survive for a few days without water. (1)Water is better than other beverages. There is a difference between drinking pure water amp。 beverages that contain water. Fruit juice, soft drinks, coffee, etc., may contain substances that are not healthy, amp。 actually contradict some of the positive effects of the added water. Other Beverages also contain dehydrating agents. They may actually reduce the water reserves in the body! Drinking other beverages to the exclusion of water also causes you to lose your taste for water. This is particularly true with children as they bee dependent on Sodas amp。 juices. (2)Water can improve people39。s Metabolic rate. Water is the solvent of the body amp。 it regulates all functions, including the activity of everything it dissolves amp。 circulates. (3) Water can help people in weight loss. Water plays a major part in weight loss. Since water contains no calories, it can serve as an appetite suppressant, and helps the body metabolize stored fat, it may possibly be one of the most significant factors in losing weight. Dehydration leads to excess body fat, poor muscle tone amp。 size, decreased digestive efficiency amp。 an function, increased toxicity, joint amp。 muscle soreness, amp。 water retention. Water works to keep muscles and skin toned. (4) Water can benefit people39。s Digestive System. Constipation(便秘 ) is a frequent symptom of dehydration. Increased water, along with increased fiber, will usually totally eliminate a problem. (5) Water lubricates our joints The cartilage(軟骨 ) tissues found at the ends of long bones amp。 between the vertebrae(椎骨 ) of the spine hold a lot of water, which serves as a lubricant during the movement of the joint. Rheumatoid(患風(fēng)濕癥的 ) joint pain frequently decreases with increased water intake amp。 flexing exercises to bring more circulation to the joints. [A] The digestion of solid foods depends on the presence of copious amounts of water. Acids amp。 enzymes in the stomach break the food down into a homogenized fluid state which can pass into the intestine for the next phase of digestion. An acid stomach will respond to hydration. Gastritis (胃炎 ), duodenitis (十二指腸炎 ), pain from ulcers(潰瘍 ) (as long as the ulcer is not perforated), amp。 heartburn all decrease with increased water intake. Water eliminates toxins amp。 waste from the body. An active, athletic person needs 2/3 ounce per pound which is ounce glasses a day if you39。re 160 pounds. The more you exercise the more water you need. Spread out your water intake throughout the day. Do not drink more than 4 glasses within any given hour. [C] Water is the medium for various enzymatic amp。 chemical reactions in the body. It moves nutrients, hormones, antibodies, amp。 oxygen through the blood stream amp。 lymphatic system. The proteins amp。 enzymes of the body function more efficiently in solutions of lower viscosity. [D] Caffeinated beverages stimulate the adrenal glands(腎上腺 ) and act as diuretics, robbing your body of necessary water. Soft drinks contain phosphorus which can lead to depletion of bone calcium. Soda contains sodium. Fruit juices contain a lot of sugar amp。 stimulate the pancreas. These drinks may tax the body more than they cleanse it. A 12 ounce can of regular soda contains the equivalent of 9 teaspoons of sugar and loads of empty calories. [E] In the article Water Bearers, (Shape magazine) Elizabeth Austin notes that water is the single most important nutrient you take in every day. It39。s fatfree, cholesterolfree, low in sodium, and pletely without calories. Also, drinking more water helps to reduce water retention by stimulating your kidneys. Studies have remended that if you are overweight according to average height and weight parison charts, you should add one glass of water to your daily requirement (of eight glasses) for every 25 pounds over your remended weight. [F] When the cartilage is hydrated, the two opposing surfaces glide fr