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阅读理解。     From babies to body builders, we all have muscles. They grow, they bulge (鼓起), they stretch and
sometimes they even painfully pull. But for all the work they do for us, we are still unable to crown one
as "the strongest muscle".
     Instead, a few muscles could claim the title, depending on how strength is measured.
     If the title goes to the muscle that can exert the most force, the victor would be the soleus (小腿肚肌),
according to Gray"s "Anatomy". Without this muscle, we wouldn"t be able to stand, walk, run or shake
our bodies on the dance floor. If the soleus was not continuously pulling, we would always be falling over
ourselves (although some of us tend to do that from time to time anyway).
     But perhaps the title should go to the muscle that exerts the most pressure. Pressure is different from
force-pressure takes into account the area over which a force is exerted. The muscle that takes the prize
for delivering the greatest amount of pressure is the masseter, or the jaw muscle, according to the book
"Clinical Oral Science" (Reed Educational and Professional Publishing, 1998).
     In 1986, Richard Hofmann of Lake City, Fla., achieved a bite strength of 975 pounds for two seconds,
setting a Guinness Record. Talk about jaw dropping! The jaw is able to clench (咬紧) and chew because
of the masseter muscle.
     Others may argue the muscles used in childbirth are the most powerful.
     When it comes to versatility, perhaps the tongue is the strongest muscle. Its combination of elasticity
(伸缩性) and forcefulness gives us the ability to speak, eat and kiss-all things very desirable on a first date.
However dexterous (灵巧的) it may be though, its power does not match that of muscles such as the soleus.
     If slow and steady wins the race, the heart is certainly a contender for the title. When it contracts, the
muscle pumps about 2 ounces of blood, and is constantly working over a lifetime. Beating about 40 million
times a year, a person"s heart will beat approximately 2. 5 billion times by the time of their 70th birthday. 1. According to the passage, the underlined word "contender" in the last paragraph is closest in meaning to
   "____" A. failure
B. partner
C. muscle
D. competitor 2. Which would be the best title for the passage? A. What"s the strongest muscle in the human body?
B. Who is the strongest person in the world?
C. What are the functions of different muscles?
D. What are the standards of the strongest muscle? 3. Which of the following is true according to the passage? A. Without the soleus, we could still stand, walk, run or shake our bodies on the dance floor.
B. A few muscles could be the winners, according to different measures.
C. The muscles used in childbirth are the most powerful.
D. The tongue is the strongest muscle for delivering the greatest amount of pressure. 4. What would be discussed in following paragraph?  A. Another possible strongest muscle.
B. The conclusion of the strongest muscles.
C. The functions of different muscles.
D. The Guinness Record of the strongest muscle.
答案
1-4: D A B A
核心考点
试题【阅读理解。     From babies to body builders, we all have muscles. They grow, they bul】;主要考察你对题材分类等知识点的理解。[详细]
举一反三
阅读理解。     West Virginia-Public schools are using a dance video game to help get students in shape. In these schools,
students are often told to turn off their video games and get some exercise. The schools have found a new
way for their students to work out while playing a new video game. West Virginia is one of the heaviest states
in the country. About half of its fifth-graders are considered to be overweight, and their parents are worried
about that. To get them moving on a healthier path, the state"s public schools are using a video game called
"Dance Revolution".
     To use the game, players should stand on a special mat in front of a TV screen. Following arrows on the
screen, players must move their feet to the specific symbols on the mat. Players must move quickly, touching
symbols on the mat at just the right time. With each song, they get more exercise.
     "If we can get children to change their behavior at a young age, they will hopefully grow up to be healthy
and active adults," said Carl Callison of Mountain State Blue Cross, a health care company.
     West Virginia is ranked among the top three heaviest states. About a third of West Virginians are considered
to be obese (肥胖的). Even more are considered to be overweight. Extra weight can lead to serious health
problems such as high blood pressure, diabetes (糖尿病), some cancers, and many other health issues.
     "One out of three children born in West Virginia today will have diabetes by the time they grow up," said
Nidia Henderson, a manager for the public employees insurance program. "That"s a terrible thing and not
acceptable."
     All of West Virginia"s 157 middle schools are using the video game. School officials hope that all public
schools in the state will use the game within the next three years. However, officials emphasize that the game
is not meant to substitute physical education and health classes. The game will be part of physical education
classes and after-school programs. 1. Why do public school in West Virginia develop "Dance Revolution"? A. Because most of" students don"t like dancing.
B. Because it can help students get a better shape.
C. Because losing weight is necessary to students.
D. Because it can make students" activities colorful. 2. The second paragraph mainly talks about ____. A. how to get more exercise
B. what are needed in the game
C. how to play a dance video game
D. who can practise the game 3. According to the text, which of the following is NOT true? A. About one person in three West Virginians is overweight.
B. Overweight may cause a lot of diseases.
C. The problem of students" overweight has been realized.
D. There are only 157 middle schools in West Virginia. 4. The underlined word "substitute" in the last paragraph means ____. A. replace
B. change
C. practise
D. stop 5. Which is the hest title for the text? A. The Problem of Overweight
B. Dancing for Health
C. Overweight in West Virginia
D. A Dance Video Game
题型:广东省模拟题难度:| 查看答案
阅读理解。     We produce 500 billion of plastic bags in a year worldwide and they are thrown away polluting oceans,
killing wildlife and getting dumped in landfills where they take up to 1,000 years to decompose. Researchers
have been unsuccessfully looking for a solution.
     The 16-year-old Canadian high school student, Daniel Burd, from Waterloo Collegiate Institute, has
discovered a way to make plastic bags degrade (降解) in as few as 3 months. a finding that won him first
prize at the Canada-Wide Science Fair, a $ 10,000 prize, a $ 20,000 scholarship, and a chance to revolutionize
a major environmental issue.
     Burd"s strategy was simple: Since plastic does eventually degrade, it must be eaten by microorganisms (微
生物). If those microorganisms could be identified, we could put them to work eating the plastic much faster
than under normal conditions.
     With this goal in mind, he grounded plastic bags into a powder and concocted (调制) a solution of
household chemicals, yeast (酵母) and tap water to encourage microbes growth. Then he added the plastic
powder and let the microbes work their magic for 3 months. Finally, he tested the resulting bacterial culture
on plastic bags, exposing one plastic sample to dead bacteria as a control. Sure enough, the plastic exposed
(暴露) to the live bacteria was 17% lighter than the control after six weeks.
     The inputs are cheap, maintaining the required temperature takes little energy because microbes produce
heat as they work, and the only outputs are water and tiny levels of carbon dioxide.
     "Almost every week I have to do chores and when I open the closet door, I have piles of plastic bags
falling on top of me. One day, I got tired of it and I wanted to know what other people are doing with these
plastic bags. The answer: not much. So I decided to do something myself." said Daniel Burd. 1. Daniel Burd won first prize at the Canada-Wide Science Fair because ____. A. he found a new kind of microorganism
B. he contributed much to environmental protection
C. he found a way to degrade plastics in shorter time
D. he could encourage microbes growth in an easier way 2. Daniel Burd exposed one plastic sample to dead bacteria to ____. A. make the live bacteria work better
B. test how effective his method was
C. know which bacteria worked faster
D. control the temperature in the process 3. Maintaining the required temperature takes little energy because ____. A. plastics can get hot easily
B. microbes can produce heat themselves
C. much carbon dioxide is produced
D. the temperature can be controlled 4. Daniel Burd got his idea from ____. A. his school textbook
B. the failure of researchers
C. his everyday work
D. the practice of other people
题型:广西自治区模拟题难度:| 查看答案
阅读理解。     We have met the enemy and he is ours. We bought him at a pet shop. When monkey-pox, a disease usually
found in the African rain forest suddenly turns up in children in the American Midwest, it"s hard not to wonder
of the disease that comes from foreign animals is homing in on human beings. "Most of the infections (感染)
we think of as human infections started in other animals" says Stephen Morse, director of the Center for Public
Health Preparedness at Columbia University.
     It"s not just that we"re going to where the animals are; we"re also bringing them closer to us Popular foreign
pets have brought a whole new disease to this country. A strange illness killed Isaksen"s pets and she now thinks
that keeping foreign pets is a bad idea. "I don"t think it"s fair to have them as pets when we have such a limited
knowledge of them" says Isaksen.
     "Laws allowing these animals to be brought in from deep forest areas without stricter control need changing"
says Peter Schantz. Monkey-pox may be the wake-up call Researchers believe infected animals may infect their
owners. We know very little about these new diseases. Anew bug (病毒) may be kind at first But it may develop
into something harmful (有害的). Monkey-pox doesn"t look a major infectious disease. But is not impossible to
pass the disease from person to person. 1. We learn from Paragraph I that the per sold at the shop may _____. A. come from Columbia
B. prevent us from being infected
C. enjoy being with children
D. suffer from monkey-pox 2. Why did Isaksen advise people not to have foreign pets? A. They attack human beings
B. We need to study native animals
C. They can"t live out of the rain forest
D. We do not know much about them yet 3. What does she phrase "the wake-up call" in paragraph 3 most probably mean? A. a new disease
B. a clear warning
C. a dangerous animal
D. a morning call 4. The text suggests that in the future we _____. A. may have to fight against more new diseases
B. may easily get infected by diseases from dogs
C. should not be allowed to have pets
D. should stop buying pests from Africa
题型:高考真题难度:| 查看答案
阅读理解。     I know what you"re thinking: pizza (比萨饼)? For breakfast? But the truth is that you can have last
night"s leftovers in the a.m. if you want to.
     I know lots of women who skip breakfast (不吃早餐), and they have a ton of different excuses for
doing it. Some say they don"t have time. others think they"re "saving" calories (卡路里), still others just
don"t like breakfast food.
     But the bottom line is that eating in the morning is very important when you"re trying to lose weight.
"Eating just about anything from 300 to 400 calories would be better than nothing at all," says Katherine
Brooking, R.D, who developed the super-easy eating plan for this year"s "SELF CHALLENGE". And even
pizza can be healthy if it"s loaded with vegetables, and you stick to one small piece.
     Breakfast is one meal I never miss, and the same goes for most weight loss success stories. Research
shows that eating breakfast keeps you from overeating later in the day. Researchers at the University of
Southern California found that breakfast skippers have a bigger chance of gaining weight than those who
regularly have a morning meal.
     So eat something in the morning, anything. I know plenty of friends who end up having no breakfast
altogether, and have just coffee or orange juice. I say, try heating up last night"s leftovers-it may sound
crazy, but if it works for you, do it! I find if I tell myself, "You can always eat it tomorrow," I put away
the leftovers instead of eating more that night. Try it…you may save yourself some pre-bedtime calories.
And watch your body gain the fat-burning effects. 1. The word "leftovers" in Paragraph 1 probably means ____. A. food remaining after a meal
B. things left undone
C. meals made of vegetables
D. pizza topped with fruit 2. What can we infer from the text? A. Working women usually have breakfast in a hurry.
B. Many people have wrong ideas about breakfast.
C. There are some easy ways of cooking a meal.
D. Eating vegetables helps save energy. 3. According to the last paragraph, it is important to ____. A. eat something for breakfast
B. be careful about what you eat
C. heat up food before eating it
D. eat calorie-controlled food 4. The text is written mainly for those ____. A. who go to work early
B. who want to lose weight
C. who stay up late
D. who eat before sleep
题型:高考真题难度:| 查看答案
阅读理解。     "Old wives tales" are beliefs passed down from one generation to another, For Example, most of us
remember our parents" telling us to eat more of certain foods or not to do certain things. Is there any truth
in these teachings? Some of them agree with present medical thinking, but others have not passed the test
of time.
     Did your mother ever tell you to eat your carrots because they are good for your eyes? Scientists now
report that eating carrots can help prevent a serious eye disease called macular degeneration. Eating just one
carrot a day can reduce the possibility of getting this disease by 40%. Garlic (蒜) is good for you, too. It
can kill the type of virus that causes colds.
     Unfortunately, not all of Mom"s advice passed the test of medical studies. For example, generations of
children have been told not to go swimming within an hour after eating. But research suggests that there is
no danger in doing so. Do sweets cause tooth problems? Well, yes and no. Sticky sweets made with grains
tend to cause more problems than sweets made with simple sugars.
     Even though science can tell us that some of our traditional beliefs don’t hold water, there is still a lot of
truth in the old wives" tales. After all, much of this knowledge has been accumulated (积累) from thousands
of years of experience in family health care. We should respect this body of knowledge even as we search
for clear scientific support to prove it true or false.1. Which of the following is TRUE according to the text?A. Eating garlic is good for our eyes.
B. Sticky sweets are damaging to our teeth.
C. Swimming after a meal is dangerous.
D. Carrots prevent people from catching colds. 2. The author develops the third paragraph mainly _____. A. by cause and effects
B. by order in space
C. by order in time
D. by examples 3. The phrase "hold water" in the last paragraph most probably means "_____". A. to be believable
B. to be valuable
C. to be admirable
D. to be suitable 4. What is the author"s attitude toward "old wives" tales" in the text? A. So objective
B. Objective
C. Dissatisfied
D. Curious
题型:陕西省高考真题难度:| 查看答案
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