题目
题型：不详难度：来源：
Your body works 24 hours a day. It’s always building and repairing, feeding and cleansing itself. Its goal is to be ready for your every movement, breath, and thought. The quality of your life depends on how well your body works. And how well your body works depends on how much energy it gets. Energy comes from the food you eat. Food contains nutrients that your body needs for growth and energy.
By eating a balanced diet, your body gets the six important nutrients it needs. Minerals（矿物质） are nutrients that build bones and teeth. Minerals also form red blood cells and other substances. Water aids digestion and waste removal. Carbohydrates（碳水化合物） give your body its main source of energy. Two carbohydrates are sugars from foods such as fruits and vegetables and starches found in rice, potatoes, and bread. Fats help build cell membranes（膜）. Proteins repair and grow body tissues（组织）. Finally, vitamins help your body use carbohydrates, fats, and proteins.
The United States Department of Agriculture（USDA） has created a nutritional food pyramid（金字塔）. It shows the daily number of servings you should eat from five food groups. The food pyramid has four levels. The base of the pyramid is the largest level. It contains the bread, cereal, rice, and pasta group from which you need six to eleven servings. The next level has two food groups: vegetables and fruits. The USDA recommends three to five servings of vegetables and two to four servings of fruit. The third level also has two groups: the milk, yogurt, and cheese group and the meat, poultry, fish, dry beans, eggs, and nuts group. You need two to three servings from each of these groups. The top of the pyramid is the smallest level. It contains fats, oils, and sweets. These foods have few nutrients, so eat them sparingly（有节制地）.
小题1:What is the main idea for this passage_________?
| A．Eating a balanced diet gives your body the energy it needs. |
| B．The top of the pyramid is the smallest level. |
| C．Meat, poultry, fish, dry beans, eggs, and nuts are on the third level. |
| D．We should have a nutrition food pyramid. |
| A． food is something that cleanses your body. |
| B．food can improve the quality of your life. |
| C．food should be eaten at night as well as during the day. |
| D．food will make it easier for you to exercise. |
| A．four | B．five | C．six | D．seven |
| A．is made up of foods from five food groups. |
| B．includes many foods containing fat. |
| C．includes six to eleven servings of fruit. |
| D．can be got by taking vitamins. |
| A．describes the five basic food groups. |
| B．explains what a balanced diet is. |
| C．writes the details of each nutrient. |
| D．tells the number of daily servings needed from each food group. |
答案
小题1:A
小题2:B
小题3:C
小题4:A
小题5:C
解析
试题分析：本文主要介绍了食品和营养的不同种类和具体的信息分类。
小题1:A 主旨大意题。根据文章1,2段Food contains nutrients that your body needs for growth and energy.By eating a balanced diet, your body gets the six important nutrients it needs可知A项是本文的中心思想，故A正确。
小题2:B 推理题。根据文章第一段最后一句Food contains nutrients that your body needs for growth and energy.
可知推理到最后，食物在人的生命中是最重要的。故B正确。
小题3:C 细节题。根据文章第二段第一句By eating a balanced diet, your body gets the six important nutrients it needs.可知C正确。
小题4:A 细节题。根据文章第三段1,2行The United States Department of Agriculture（USDA） has created a nutritional food pyramid（金字塔）. It shows the daily number of servings you should eat from five food groups.可知A正确。
小题5:C 推理题。根据文章第二段Minerals（矿物质） are nutrients that build bones and teeth. Minerals also form red blood cells and other substances. Water aids digestion and waste removal. Carbohydrates（碳水化合物） give your body its main source of energy. Two carbohydrates are sugars from foods such as fruits and vegetables and starches found in rice, potatoes, and bread. Fats help build cell membranes（膜）. Proteins repair and grow body tissues（组织）. Finally, vitamins help your body use carbohydrates, fats, and proteins.可知C项内容正确
点评：本文主要介绍了食品和营养的不同种类和具体的信息分类。这篇文章非常简单，先看问题，再带着问题仔细阅读短文，理解了全文内容，很容易选出正确答案。阅读短文时，常常会遇到一些生词。这时，要沉着，冷静，细心思考。首先要把整段、整篇文章看完。通过对全篇短文的理解，就很有可能猜测出生词的大意。另外，还可以从含有生词句子的上下文，以及句子和段落之间的关系来判断、理解生词以求获得其真正含义。
核心考点
试题【 ( D )Your body works 24 hours a day. It’s always building and repairing, feedin】；主要考察你对题材分类等知识点的理解。[详细]
举一反三
Car needs gas to run as your body needs food to work for you. Eating the right kinds of food is very important. A good eating habit can help your body grow strong if you take care of what you eat.
There are four main food groups altogether. The dairy group has food like milk, cheese and sour milk. The other three groups are the meat and fish group, the fruit and vegetable group, and the bread and rice group. Each meal should have at least one food from all four main groups. With all of these foods together, you will be given enough energy during the day.
It is easy to get into bad eating habits. You may eat your breakfast in a hurry to get to school on time or you may not have time for a good lunch. It may be easier to eat fish and chips for your supper all the time. But you will find yourself tired and you will not be able to think quickly.
Watching what you eat will help keep your body healthy and strong. It is also good to take some exercise. It will help you eat more if you take a walk or play games in the open air. Having good eating habits with some exercise is the key to your health.
小题1:According to the passage, which of the following diets do you think is the best one?
| A．Eggs, tomatoes and chicken. |
| B．Milk, bread, cabbages and beef. |
| C．Corn, fish, ice cream and pork. |
| D．Rice, beancurd(豆腐)，fish and chicken. |
| A．Going to school without any breakfast. |
| B．Eating fish and chips for supper all the time. |
| C．Having at least food from one of the four groups each meal. |
| D．Having different food from all four food groups. |
| A．every person needs food to grow well. |
| B．taking exercise can keep your body strong. |
| C．the right kind of food with exercise will keep you healthy. |
| D．enough energy helps people think more quickly. |
| A．the food made out of cows such as milk and butter |
| B．the shop that sells milk and butter |
| C．a farm where cows are kept |
| D．a place where milk products are made |
Parties, iPods, concerts, movies, TV shows, video games, traffic. All of these things of the modern world make life entertaining and enjoyable. But our 21st-century lifestyle is also loud and, if we don’t take notice, it can have an effect on our hearing.
Most teenagers don’t think about hearing loss. But if you experience any of the following symptoms（症状）, you may already be hearing damaged: you make efforts to hear normal talk, you have to turn up the TV or radio so high that others complain, you watch other people’s expressions to understand what they are saying, you ask people to repeat themselves, you misunderstand what people are saying or you hear ringing in your ears.
iPods and other MP3 players are as common as the clothes you wear, and just as fashionable. But if you turn up an iPod to more than 60 percent of its maximum volume（最大音量）, and listen to music for more than an hour, you are asking for trouble. And, it does not matter if the music you play is classical, rock or heavy metal.
Some researchers find that young people who break the so-called 60-percent/60-minute rule in listening to iPods are at the risk of suffering hearing loss.
Why is an iPod dangerous? With ear buds placed directly in the ear canal and high-volume music played over a long period of time, it’s like working in a loud factory all day, being a maintenance（修理）person under a jet airplane or using a jackhammer（手提钻）on a building site.
Similarly, iPod music can cause a short time or permanent（永久的）hearing damage. A loud iPod can cause a ruptured（破裂的）eardrum and, over time, may cause permanent damage to the tiny hairs in the inner ear. If these tiny hairs are damaged, they cannot effectively send sounds to the auditory nerves（听觉神经）that connect to the brain. If this happens, hearing loss becomes permanent.
小题1:Which of the following shows that you are suffering hearing loss?
| A．You are interested to listen to others’ talking. |
| B．You have to read others’ expressions to understand them. |
| C．You can only understand others over the phone. |
| D．You always think you hear the ringing of the phone. |
| A．Listen at least an hour every time. |
| B．Turn up the volume to the highest level. |
| C．keep the sound lower than 60% of its highest volume. |
| D．Choose classical, rock or heavy metal music. |
a. The eardrum is broken.
b. The auditory nerves cannot receive sounds.
c. Tiny hairs are damaged.
d. Ear buds are placed directly in the ear canal.
e. High-volume music is played over a long time.
| A．d-a-c-b-e | B．e-c-a-b-d | C．b-c-a-d-e | D．d-e-a-c-b |
| A．music that teenagers like | B．hearing problems caused by the loud world |
| C．ways that teenagers enjoy music | D．dangerous modern lifestyles of teenagers. |
L1PITOR
| ABOUT LIPITOR Lipitor is a prescription medicine．Along with diet and exercise，it lowers “bad，’cholesterol(胆固醇)in your blood．It can also raise “good"’ cholesterol. Lipitor can lower the risk of heart attack in patients with several common risk factors， including family history of early heart disease，high blood pressure，age and smoking. |
| WHO IS LIPITOR FOR? Who can take LIPITOR： ．People who cannot lower their cholesterol enough with diet and exercise · Adults and children over l0 Who should NOT take LIPITOR： ．Women who are pregnant，may be pregnant，or may become pregnant. Lipitor may harm your unborn baby. ．women who are breast-feeding．Lipitor can pass into your breast milk and may harm your baby. · People with liver(肝脏)problems |
| POSSIBLE SIDE EFFECTS OF LIPITOR Serious side effects in a small number of people： ．Muscle(肌肉)problems that can lead to kidney(肾脏)problems，including kidney failure ．Liver problems．Your doctor may do blood tests to check your liver before you start Lipitor and while you are taking it． Call your doctor right away if you have： ．Unexplained muscle pain or weakness，especially if you have a fever or feel very fired ．Swelling of the face，lips，tongue，and／or throat that may cause difficulty in breathing or swallowing · Stomach pain Some common side effects of LIPITOR are： · Muscle pain · Upset stomach · Changes in some blood tests |
| HOW TO TAKE LIPITOR DO： ．Take Lipitor as prescribed by your doctor. ．Try to eat heart-healthy foods while you take Lipitor. ．Take Lipitor at any time of day, with or without food. ．If you miss a dose(一剂)，take it as soon as you remember. But if it has been more than 12 hours since your missed dose，wait．Take the next dose at your regular time. Don’t： ．Do not change or stop your dose before talking to your doctor. ．Do not start new medicines before talking to your doctor. |
| A．breast-feeding women |
| B．women who are pregnant |
| C．adults having heart disease |
| D．teenagers with liver problems． |
| A．change the amount of your next dose | B．eat more when taking your next dose |
| C．have a dose as soon as you remember | D．take the next dose at your regular time |
| A．Face swelling. | B．Upset stomach. |
| C．Kidney failure. | D．Muscle weakness. |
| A．To teach patients ways for quick recovery. |
| B．To present a report on a scientific research. |
| C．To show the importance of a good lifestyle. |
| D．To give information about a kind of medicine. |
Now, researchers report that short people—at least in the past—were also more likely to die at a younger age than their taller peers.
Their study, published in the Journal of Epidemiology (流行病学) and Community Health , found that short bones have something to do with short life for more than 1,000 years. The conclusion was based on 490 sets of adult skeletal(骨架) remains from an archaeological(考古学的) site in northeastern England , YC dating from the 9th century to about 1850 .
About 55% of men and 73% of women died before the age of 45, and 39% of men and 56% of women died before age 30. The risk of death before age 30 declined as bone length increased.
“This study provides evidence from an archaeological sample that long bone length is connected with age at death—those with smaller bones tend to die younger,” according to Dr. D.J. Gunnell of the university of Bristol in the UK and colleagues .
While it is not clear why short stature(身材) might be linked to earlier death , the researchers point out that height is an indicator of childhood nutrition, which may have long-lasting effect on health .
“Mechanism (身体结构) for height-mortality(死亡) associations in the past may differ from those today , for example , short stature may have increased the risk of death in childbirth and this may explain the higher risk of premature(未成熟的) mortality in women,” Gunnell and colleagues write .
“However, short bones, it would appear, have always been a marker of a short life,” the authors conclude.
小题1:The title of the passage should be .
| A．Short people and their taller peers |
| B．Men and women |
| C．Short stature and short life |
| D．Long life and short life |
| A．a study | B．a marker | C．a risk | D．an age |
| A．People with smaller bones were more likely to die younger. |
| B．Women were more likely to die at a young age. |
| C．Short-stature women bear higher risk of death in giving birth to babies. |
| D．Most people were more likely to die at the age of 30 in the past. |
| A．less childhood nutrition | B．heart disease |
| C．some illnesses | D．high blood pressure |
| A．space medicine | B．sports medicine |
| C．social medicine | D．industrial medicine |
The result: Thirteen percent fewer heart attacks. Eight percent fewer strokes. Four percent fewer deaths. Eleven percent fewer new cases of heart disease. And two hundred forty billion dollars in health care savings. Researchers found it could prevent one hundred thousand heart attacks and ninety-two thousand deaths every year．
The study is in the New England Journal of Medicine. Kirsten Bibbins-Domingo at the University of California San Francisco was the lead author. She says people would not even notice a difference in taste with three grams,or one-half teaspoon, less salt per day. The team also included researchers at Stanford and Columbia University. Each gram of salt contains four hundred milligrams of sodiu(钠), which is how foods may list their salt content．
The government says the average American man eats ten grams of salt a day. The American Heart Association advises no more than three grams for healthy people. It says salt in the American diet has increased fifty percent since the nineteen seventies, while blood pressures have also risen. Less salt can mean a lower blood pressure.
New York City Mayor Michael Bloomberg is leading an effort called the National Salt Reduction Initiative.The idea is to put pressure on food companies and restaurants. Critics call it government interference.
Mayor Bloomberg has already succeeded in other areas, like requiring fast food places in the city to list calorie information. Now a study by the Seattle Children"s Research Institute shows that the calorie information on the menu can influence what parents order for their children. Ninety-nine parents of three to six year olds took part. Half had calories between the two groups for foods that the parents would have chosen for themselves. McDonald"s menus clearly showing how many calories were in each food. Parents given the counts chose an average of one hundred two fewer calories when asked what they would order for their children. Yet there was no difference in calories between the two groups for foods that the parents would have chosen for themselves.
Study leader Pooja Tandon says even small calorie reductions on a regular basis can prevent weight gain over time.The study was published in the journal Pediatrics．
小题1:Which of the following benefits does less salt diet in the passage NOT cover?
| A．The decrease of strokes | B．The prevention of weight gain |
| C．Fewer heart attacks | D．The drop in medical care cost |
| A．Americans ate no more than 5 grams of salt per day in the 1970s |
| B．the American Heart Association suggests less than 3 grams of salt a day for everyone |
| C．the less salt one eats, the healthier he will be |
| D．all the heart diseases result from eating too much salt |
| A．inform people of the harm that salt does to health |
| B．attract the public attention to the problem |
| C．require fast food places to list salt information |
| D．put pressure on food companies and restaurants |
| A．Parents pay less attention to the amount of calories in their diet. |
| B．Parents set a good example to their children in daily diet. |
| C．Parents take less salt than before while taking meals. |
| D．Most parents are on a diet for their health. |
| A．Relationship between Salt and Health |
| B．Less Salt Can Mean Being More Healthy |
| C．A Survey on People"s Regular Diet |
| D．Mayor Michael Bloomberg and His Health Project |
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