It is very important to have healthy teeth. Good teeth help us to chew our food .They also help us to look nice.
How does a tooth go bad? The __51begins in a little crack in the  enamel(琺瑯) covering of the tooth. This happens after germs and bits of food have__52  there. Then the decay slowly spreads inside the tooth. In the end, poison goes into the blood, and we may feel quite ill.
How can we keep our teeth__53 ? First, we ought to visit our dentist twice a year. He can fill the small holes in our teeth before they destroy the teeth. He can__53 __54 our teeth to check that they are growing in the right way. __55 , many people wait until they have toothache before they see a dentist. Secondly, we should brush our teeth with a toothbrush and fluoride(氟化物) toothpaste at least__56  a day—once after breakfast and once before we go to bed. We can also use wooden toothpicks to__57between our teeth after a meal. Thirdly, we should eat food that is__58 to our teeth and our body: milk, cheese, fish, brown bread, potatoes, red rice, raw vegetables and fresh fruit. Chocolate, sweets, biscuits and cakes are bad, especially__59 we eat them between meals. They are harmful because they__60 our teeth and cause decay.
51.  A. destruction     B. decay         C. fault        D. hurt 
52.  A. stored          B. collected     C. laid         D. piled 
53.  A. healthy         B. complete      C. effective    D. painless 
54.  A. observe         B. skim          C. watch        D. examine
55.  A. Unexpectedly   B. Certainly small    C.Unfortunately  D. Generally
56.  A. once            B. twice        C. three times  D. four times 
57.  A. drill           B. dig           C. clean        D. explore
58.  A. delicious       B. valuable      C. beneficial   D. meaningful
59.  A. what            B. how          C. whether       D. when 
60.  A. stick to        B. attach to    C. fix on        D. keep to 

51---60    BBADC   BCCDA  

51.decay的意思是“腐爛”。(牙齒)的腐爛開(kāi)始于覆蓋在牙齒上的琺瑯層上的小裂紋。destruction的意思是“破壞”；fault的意思是“缺點(diǎn)”；hurt的意思是“受傷”。答案為B。 
52.collected在此為不及物動(dòng)詞，意思是“聚集；堆積”。細(xì)菌和食物聚集在牙縫后，就會(huì)引起牙齒琺瑯層的破裂。store作不及物動(dòng)詞的意思是“貯藏”；laid是及物動(dòng)詞，意思是“放”；pile常和up連用，意思是“堆積”。答案為B。
53.healthy“健康的”，本篇短文討論的是保持牙齒健康的問(wèn)題。B為“完全的”；C為“有效的”；D為“無(wú)痛苦的”，均不合文意。答案為A。 
54.“examine”表示醫(yī)生檢查身體(某一神經(jīng))，看牙醫(yī)的目的是讓他檢查我們的牙齒是否生長(zhǎng)正常。observe的意思是“觀察”；skim的意思是“掠過(guò)”；watch的意思是“注視”。答案為D。 
55. 每年至少看兩次牙醫(yī)可以保證我們牙齒的健康。他們可以為我們補(bǔ)牙，檢查我們的牙齡是否生長(zhǎng)正常。但是，不幸的是人們只在牙痛時(shí)才去看牙醫(yī)。而A表示“出乎意料地”；B表示“肯定小”；D表示“一般地”，均不合題意。答案為C。 
56.從后句once after breakfast and once before we go to bed可知。答案為B。 
57.clean為“使……干凈”。飯后使用牙簽的目的是清除牙齒之間的食物。drill的意思是“鉆”；dig的意思是“挖”；explore的意思是“探險(xiǎn)”。答案為C。 
58.beneficial的意思是“有益的”。為了保持我們牙齒的健康，我們必須吃有益于牙齒健康的食物。delicious的意思是“好吃的；美味的”；valuable的意思是“有價(jià)值的”；meaningful的意思是“意味深長(zhǎng)的”。答案為C。 
59.巧克力、糖果、餅干和蛋糕對(duì)牙齒有害，特別是我們?cè)趦深D飯之間吃這些東西。注意這四個(gè)選項(xiàng)的語(yǔ)法功能：what, how和whether只能引導(dǎo)名詞性從句；而when既可以引導(dǎo)名詞性從句，也可以引導(dǎo)時(shí)間狀語(yǔ)從句。從句子的結(jié)構(gòu)和意思都可判斷出是時(shí)間狀語(yǔ)從句，而不會(huì)是名詞性從句。答案為D。 
60.stick to的意思是“粘住”。巧克力、糖果、餅干和蛋糕會(huì)粘在我們的牙齒上，造成牙齒破裂，所以它們是有害的。attach to的意思是“附屬于”；fix on的意思是“固定在”；keep一般不和介詞to連用。答案為A。
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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解


Most of us lead unhealthy lives; we spend far too much sitting down. If in addition we are careless about our diets, our bodies soon become loose and fatty and our systems slow?moving. There are some aspects(方面) of our unhealthy lives that we cannot avoid. I am thinking of such features of modern city life as pollution, noise, rushed meals and stress. But keeping fit is a way to reduce the effects of these evils. The usual suggestion to a person who is looking for a way to keep fit is to take up some sport or other. While it is true that every weekend you will find people playing football and hockey in the local park, they are outnumbered a hundred to one by the people who are simply watching them.
　　For those who do not particularly enjoy competitive sports — and it is especially difficult to do so if you are not good at them — there are such separate activities as cycling, walking, jogging and swimming. What often happens though is that you do them in such a leisurely way, so slowly, that it is doubtful if you are doing yourself much good, except for the fact that you have at least managed to get up out of your armchair.
　　Even after you have found a way for keeping in shape, through sport or gymnastics, you are still only half way to good health, because, according to the experts, you must also master the art of complete mental and physical relaxation(放松). It has to do with deep breathing, emptying your mind of all thoughts, meditation, and so on. Yoga, as practiced in the West, is the most widely known and popular of the systems for achieving the necessary state of relaxation. It seems ironical (諷刺性的), though, that as our lives have improved in a material sense we have found it increasingly necessary to go back to forms of activity?physical effort on the one hand and relaxation on the other — which were the natural way of life of our forefathers.
12. Pollution, noise and stress are examples of _____.
A. causes of unfitness
B. bad features of living in towns
C. the things we can completely do away with
D. unavoidable things in town
13. We don’t get much out of separate sports because we _____.
A. don’t do them very often 
B. don’t do them actively enough
C. find it hard to get out of our armchairs
D. don’t find them interesting
14. To be healthy we must _____.
A. keep fit and active                                      B. keep fit and learn to relax
C. be active and practise Yoga                               D. have a sound mind
15. Our forefathers were healthy because______.
A. their way of life closely connected with both exercise and relaxation
B. they were careful to get plenty of fresh air
C. they spent most of the time out of doors
D. their environment was not polluted

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解


Most of us think that when we step under a shower we’re getting clean．We are, but we’re also giving a home to lots of tiny little creatures we didn’t even know about．
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This is a finding of Norman R．Pace and his team at the University of Colorado, in the US．The scientists investigated bacteria in all kinds of human environment, including showers．
Pace's team looked at 45 showerheads in nine American cities．They discovered that 30 percent of them had large amounts of flying Mycobacterium．
But Pace said that they pose few threats to the health．Only those with a frail (脆弱的) immune (免疫的) system might need to worry．
He told the New York Times that the bactertia are not as unpleasant as might be thought．He said that having a shower is no more dangerous than anything else we do in the morning．
But for those who feel sick about the idea of all those microorganisms (微生物), he had some advice．
Let the water run for 30 seconds before getting into the shower．Why? The number of bacteria is smaller than when the water is just turned on．If that seems like a waste of water, he added that you could also change your showerhead every few months．
But Pace had good news too．He has also been testing the air in US subways．Apart from iron particles (粒子), which are ground off the track by the wheels of trains, subway air is fresh．The reason is that a train’s movement pumps fresh outdoor air into the tunnels(隧道)．
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49．According to the finding of Norman R．Pace, after taking a shower, we might ______．
A．get much dirtier                B．be covered by bacteria
C．get a frail immune system      D．catch a cough or feel tired
50．Pace’s research into showers shows that ______．
A．there is no reason to fear microorganism
B．shower water contains much less bacteria after being left to run for 30 second
C．having a shower in the morning is more dangerous than at other time
D．of 45 showerheads surveyed in nine cities, 30 carried large amounts of Mycobacterium
51．According to the research of Pace’s team, which of the following contributes to fresh air in US subways?
A．Train wheels．               B．Iron particles．
C．The movement of the trains． D．Air conditioners on the trains．
52．The word “detect” in the last paragraph probably means “______”．
A．to discover      B．to protect        C．to make   D．to prevent

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：完形填空


健康問(wèn)題一直是生活中的熱點(diǎn)話題。尤其對(duì)于女性來(lái)說(shuō)，你知道穿矮高跟鞋和純粹的高跟鞋對(duì)你身體健康的影響嗎？
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"I compare it to smoking — one cigarette is not painful, but over a lifetime it is. Wide-heeled shoes feel comfortable, so women wear them all day long, "Kerrigan said.”They are better for your feet than stiletto heels, but just as had for your knees.”
The idea that high heels are bad for your health isn't new — scientists have warned women for years that they contribute to problems ranging from corns to hammer toes, tendonitis, knee pain, sprained（扭傷）ankles and back problems.
But in 1998, Kerdgan and a team of Harvard researchers were the first to link high heels and knee osteoarthritis, a painful joint disease that destroys cartilage（軟骨）surrounding the knee.
The first study looked only at stiletto heels, and Kerrigan said she wanted to study the chunky high-heeled shoes she noticed many women wearing.
"This study confirms what we all intuitively（直覺(jué)地）know that high-heeled shoes of any kind are not good for our health," said Dr. Glenn Pfeifer, a San Francisco doctor and member of the American Academy of Orthopedic Surgeons who was not connected to the study.
1. What’s the main idea of the passage?
                                                                           
2. Which sentence in the passage is the closest in meaning to the following one?
In my opinion, it is similar to smoking, for smoking one cigarette does little harm but if you smoke all your life, it’ll be very painful.
                                                                          
3. Please fill in the blank in the passage with proper words or phrases to complete the sentence.（within ten words）
                                                                          
4. What do you think of wearing the chunky heels according to the passage? （within 30 words）
                                                                          
5. Translate the underlined sentence into Chinese.

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：完形填空

It seems parents have long been right. Going to bed early is key to getting enough sleep and helping adolescents feel on top of the world, a new study reported.
A   1  of sleep among youngsters may    2  depression and suicidal (自殺的)thoughts, according to the study by the Columbia University Medical Center.
"Our results are   3  with the theory that inadequate sleep is a risk factor for depression, working with other   4  and protective factors through multiple possible causal pathways to the development of this   5  disorder," said lead author James Gangwisch.
"  6  quality sleep could therefore be a preventative measure against   7  and a treatment for depression," he added in the study   8  in the Friday issue of Sleep magazine.
The study followed the nightly habits of some 15,659 college and high-school students, and   9  those who consistently went to bed   10  midnight had a 24 percent higher risk of depression than those who turned in before 10:00 pm.
Night owls（夜貓子）also ran a 20 percent   11  risk of battling suicidal thoughts, the study added.
The American Academy of Sleep Medicine   12  that adolescents should sleep at least nine hours or more a night. Those who were tucked in before 10:00 pm reported they slept    13  about eight hours and 10 minutes.
But that amount of sleep  14  significantly for those in bed after midnight.
And adolescents who slept five hours or less a night were 71 percent more   15  to suffer depression and 48 percent more     16  becoming suicidal, the study said.
"It is a common perception and societal   17  that adolescents do not need as much sleep as pre-adolescents, yet studies suggest that adolescents may  18  require more sleep," said Gangwisch.
"Studies have found that adolescents do not go to bed   19  enough to make up for earlier school start times, and transitions to earlier school start times have been shown to be   20  with significant sleep deprivation（剝奪）. "
(    ) 1. A. night                B. moderation       C. limit                D. lack
(    ) 2. A. result in           B. lie in                C. come about       D. bring in
(    ) 3. A. opposed           B. mixed              C. related              D. consistent
(    ) 4. A. risk                  B. chance              C. potential           D. reason
(    ) 5. A. mood                      B. body                C. feeling             D. mind
(    ) 6. A. little                B. lack                 C. Adequate          D. over
(    ) 7. A. suffering          B. depression               C. disorder            D. sadness
(    ) 8. A. reported           B. published          C. reflected           D. noted
(    ) 9. A. found                      B. investigated      C. appraised          D. supported
(    ) 10. A. before            B. from                C. by                    D. after
(    ) 11. A. lower             B. higher              C. more                D. less
(    ) 12. A. appeals           B. recommends     C. calls                 D. plans
(    ) 13. A. on average      B. in place            C. ahead of           D. in number
(    ) 14. A. increased               B. disappeared       C. strengthened     D. dropped
(    ) 15. A. likely             B. probable           C. possible            D. perhaps
(    ) 16. A. at sight of       B. at risk of          C. in front of               D. as a result of
(    ) 17. A. wish               B. expectation       C. suggestion               D. attempt
(   ) 18. A. exactly           B. immediately      C. directly            D. actually
(    ) 19. A. early              B. lately                      C. soon                 D. quickly
(    ) 20. A. separated               B. associated         C. divided             D. depended

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Do you find getting up in the morning so difficult that it’s painful? This might be called laziness, but Dr. Kleitman has a new explanation. He has proved that everyone has a daily energy cycle.
During the hours when you labor through your work you may say that you’re “hot”, that’s true. The time of day when you feel most energetic is when your cycle of body temperature is at its peak(最高峰). For some people the peak comes during the forenoon. For others it comes in the afternoon or evening. No one has discovered why it is so, but it leads to such familiar monologues(自言自語(yǔ))as: “Get up, John! You’ll be late for work again!” the possible explanation to the trouble is that John is at his temperature—and—energy peak in the evening. Much family quarrelling ends when husbands and wives realize what these energy cycles mean, and which cycle each member of the family has.
You can’t change your energy cycle, but you can learn to make your life fit it better. Habit can help, Dr. Kleitman believes. Maybe you’re sleepy in the evening but feel you must stay up late anyway. Counteract(對(duì)抗)your cycle to some extent by habitually staying up later than you want to. If your energy is low in the morning but you have an important job to do early in the day, rise before your usual hour. This won’t change your cycle, but you’ll get up steam and work better at your low point.
Get off to a slow start which saves your energy. Get up with a leisurely yawn(呵欠)and stretch. Sit on the edge of the bed a minute before putting your feet on the floor. Avoid the troublesome search for clean clothes by laying them out the night before. Whenever possible, do routine work in the afternoon and save tasks requiring more energy or concentration for your sharper hours.
小題1:If a person finds getting up early a problem, most probably ______.
A．he is a lazy person       
B．he refuses to follow his own energy cycle
C．he is not sure when his energy is low
D he is at his peak in the afternoon or evening
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A．Not knowing about the energy cycle
B．Familiar monologues
C．A change in a family member’s energy cycle
D．Attempts to control the energy cycle of other family members
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A．change his energy cycleB．overcome his laziness
C．get up earlier than usualD．go to bed earlier
小題4:You are advised to rise with a yawn and stretch because it will ______.
A．help to keep your energy for the day’s work
B．help you to control your temper early in the day
C．enable you to concentrate on your routine work
D．keep your energy cycle under control all day

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解

Even as Americans have been gaining weight, they have cut their average fat intake from 36 to 34 percent of their total diets in the past 15 years.  And indeed,  cutting fat  to control or lose weight makes sense. Fat has nine calories per gram. Protein and carbohydrates（碳水化合物） have just four. Moreover, the body uses fewer calories to metabolize fat than it does to metabolize other foods. Compared with protein and carbohydrates — which break down into amino acids and simple sugars, respectively, and can be used to strengthen and energize the body —— dietary fat is more easily converted to body fat. Therefore, it’s more likely to stay on buttocks, thighs and bellies.? 
But cutting fat from your diet doesn’t necessarily mean your body won’t store fat. For example, between nonfat and regular cookies, there’s trivial difference in calories because manufacturers make up for the loss of fat by adding sugar. Low-fat crackers, soups and dressings can also be just as high in calories as richer versions. No matter where the calories come from, overeating will still cause weight again. The calories from fat just do it a little quicker. A Wisconsin computer programmer who decided with a diet coach to eat only 40 grams of fat a day learned the lesson firsthand. He wasn’t losing weight. Then he showed his food diary to his coach and revealed he’d been eating half a pound of jelly beans a day. “They don’t have any fat,” he explains. But they had enough sugar to keep him from shedding an ounce. ? 
Nonfat foods become add-on foods. When we add them to our diet, we actually increase the number of calories we eat per day and gain weight. That was borne out in a Pennsylvania State University study. For breakfast, Prof. Barbara Rolls gave two groups of women yogurt（酵母乳）that contained exactly the same amount of calories. One group’s yogurt label said “high fat”—the other, “l(fā)ow fat.” The “l(fā)ow fat” yogurt group ate significantly more calories later in the day than the other group. “People think they’ve saved fat and can indulge themselves later in the day with no adverse consequences,” says Richard Mattes, a nutrition researcher at Purdue University. “But when they do that, they don’t compensate very precisely, and they often end up overdoing it.”
小題1:What lessons did the computer programme learn ?
A．Overeating will cause weight gain
B．He can eat half a pound of jellybeans a day
C．He can’t didn’t eat any fat
D．His coach gave him a lecture
小題2:Prof. Barbara’s ecperiement proved that _______________.
A．two groups ate the same amount of calories
B．two groups ate the same wmount of yogurt
C．the “ low fat” yogurt group ate more calories later in the day than the other group
D．people increase the number of calories they eat per day and gain group
小題3:According to the author ,________has less calories.
A．fat
B．protein and carbohydrates
C．low-fat soups
D．sugar
小題4: What can you infer from the text ?
A．To keep from being overweight, people have to eat nofat food
B．The calories from fat just do it a little quicker than from protein and carbohydrates
C．People should avoid temptation
D．Americans realize that it is necessary to count calories before eating the food

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解


B
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Huh? That may sound like medical heresy （反面觀點(diǎn)）．After all, we've been warned for decades about the dangers of the sun: wrinkles, age spots and the increasing threat of skin cancer．But new and impressive medical evidence suggests that sunlight is beneficial．The vitamin D it prompts our bodies to make may prevent cancer, protect against heart disease and ward off a long list of disorders such as multiple sclerosis, rheumatoid arthritis, diabetes and gum disease．It is even showing promise as a treatment for heart disease and some cancers．
Long recognized as vitally important for bone building （it's needed for calcium absorption）, vitamin D has now achieved superstar status among nutrients．While all doctors may not agree, many experts are confident enough of its wide-ranging powers to urge that we get much more of it, from the sun and from supplements, as even the best diet in the world may not give us enough．
60．Which of the following is NOT the usual way of keeping healthy?
A．To do exercise now and then．
B．To eat plenty of fruits and vegetables．
C．To avoid staying in the sun for a long time．
D．To keep away from cigarettes．
61．What does the underlined word “prompts” in the third paragraph mean?
A．causes              B．forces          C．motivates   D．encourages
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A．can be got by doing regular exercise
B．can be used to prevent some cancers
C．can be got from the sunlight
D．can be used to remove the wrinkles
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A．a(chǎn)dvertisement      B．news report   C．magazine     D．medical prescription

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科目：高中英語(yǔ) 來(lái)源：不詳 題型：閱讀理解



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