第3部分：概括大意与完成句子 (第23~30题，每题1分，共8分)
阅读下面这篇短文，短文后有2项测试任务：(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 Drink Your Body Needs Most
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 a11 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
23 Paragraph 1________
24 Paragraph 2________
25 Paragraph 3________
26 Paragraph 4________
27 One cannot 1ive_____
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 with Yon
28 Dehydration may occur if there is a shortage of water_____
29 The amount of water your body needs per day is closely related_____
30 Don't forget to drink enough water even_____
A in your body
B without water
C before long
D for a change
E on a busy day
F to your weight
第4部分：阅读理解(第31～45题，每题3分，共45分)
下面有3篇短文，每篇短文后有5道题，每道题后面有4个选项。请根据文章的内容从每题所给的4个选项中选择1个最佳答案，涂在答题卡相应的位置上。
第一篇
Exercise Lowers Employers'Health Costs
Companies can save millions in health-care costs simply by encouraging their employees to exercise a little bit，researchers reported on Friday．
They said obese(肥胖的)employees had higher health-care costs，but lowered those expenses by exercising just a couple of times a week-without even losing any weight．
Feifei Wang and colleagues at the University of Michigan studied 23，500 workers at General Motors．
They estimated that getting the most sedentary(惯于久坐的)obese workers to exercise would have saved about$790，000 a year，or about 1．5 percent of health-care costs for the whole group.
Company-wide．the potential savings could reach$7 1 million per year，they reported in the Journal of Occupational and Environmental Medicine
Of the whole group of workers．about 30 percent were of normal weight，45 percent were overweight(超重的)，and 25 percent were obese．Annual health-care costs averaged$2，200 for normal weight，$2，400 for the overweight，and$2，700 for obese employees．
But among workers who did no exercise，health-care costs went up by at least$100 a year，and were$3．000 a year for obese employees who were sedentary
But adding two or more days of light exercise——at least 20 minutes of exercise or work hard enough to increase heart rate and breathing——lowered costs by on average$500 per employee a year，the researchers found.
"This indicates that physical activity behavior could reduce at least some of the harmful effects of excess body fat，and in consequence，help lower the health-care costs，"Wang and colleagues wrote．
31 How can employees help lower the health-care costs?
A By taking more rest
B By eating less．
C By exercising a little bit．
D By saving more money．
32 By encouraging its employees to exercise General Motors could save
A$790，000 per year．
B $7.1 million per year．
C$3,000per year
D $7,300 per year．
33 How many workers in General Motors were NOT of normal weight?
A Seventy percent
B Thirty percent．
C Forty-five percent
D Twenty-five percent．
34 For which group of the workers were the health-care costs the highest?
A The employees of normal weight．
B The overweight employees
C The obese employees．
D The sedentary obese employees．
35 How often should the employees exercise to help lower the health-care costs?
A At least seven days a week．
B At least twenty minutes a week．
C At least twice a week
D At least once a week
第二篇
Medical Education
In 18th．century colonial America，those who wanted to become physicians either learned as personal students from established professionals or went abroad to study in the traditional schools of London，Paris{and Edinburgh．Medicine was first taught formally by specialists at the University of Pennsylvania，beginning in 1765，and in 1767 at King's College(now Columbia University)，the first institution in the colonies to give the degree of doctor of medicine．Following the American Revolution，the Columbia medical faculty(formerly of King'S College) was combined with the College of Physicians and Surgeons，chartered in 1809，which survives as a division of Columbia University．
In 1893 the Johns Hopkins Medical School required all applicants to have a college degree and was the first to afford its students the opportunity to further their training in an attached teaching hospital．The growth of medical schools attached with established institutions of learning went together with the development of proprietary(私营的)schools of medicine run for personal profit．most of which had 10W standards and poor facilities In 1910 Abraham Flexner. the American education reformer, wrote Medical Education in the United States and Canada，exposing the poor conditions of most proprietary schools Subsequently the American Medical Association(AMA)and the Association of American Medical Colleges(AAMC)1aid down standards for course content，qualifications of teachers，laboratory facilities，connection with teaching hospitals，and licensing of medical practitioners(开业医师)that survive to this day．By the late 1980s the US and Canada had 142 4．year medical colleges recognized bv the Liaison(联络1 Committee on Medical Education to offer che M．D．degree；during the 1987-88 academic year,47,262 men and 25,686 women entered these colleges and an estimated 11，752 men and 5，958 women were graduated．Graduates，after a year of internship(实习期)，receive licenses to practice if they pass an examination given either by a state board or by the National Board of Medical Examiners
36 In 18th-century America．higher institutions of learning that taught medicine
A did not exist．
B were few in number．
C were better than those in Europe．
D were known for their teaching hospitals．
37 Initially most proprietary schools of medicine in America
A had established professionals．
B had good facilities．
C had high standards．
D were in poor conditions．
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