Eating too much fatty food, exercising too little and smoking can raise your future risk of heart disease. But there is another factor that can cause your heart problems more immediately: the air you 题目和参考答案——青夏教育精英家教网—

题目内容

Eating too much fatty food, exercising too little and smoking can raise your future risk of heart disease. But there is another factor that can cause your heart problems more immediately: the air you breathe.
Previous studies have linked high exposure (暴露）to environmental pollution to an increased risk of heart problem, but two analyses now show that poor air quality can lead to heart attack or stroke (中风）within as little as a few hours after exposure. In one review of the research, scientists found that people exposed to high levels of pollutants (污染物）were up to 5% more likely to suffer a heart attack within days of exposure than those with lower exposure. A separate study of stroke patients showed that even air that the U. S. Environmental Protection Agency (EPA) considers to be of “moderate” (良好）quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12 to 14 hours of exposure.
The authors of both studies stress that these risks are relatively small for healthy people and certainly modest compared with other risk factors such as smoking and high blood pressure. However, it is important to be aware of these dangers because everyone is exposed to air pollution regardless of lifestyle choices. So stricter regulation by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health.
【小题1】The text mainly discusses the relationship between .

A．heart problems and air quality

B．heart problems and exercising

C．heart problems and smoking

D．heart problems and fatty food

【小题2】The underlined word “modest” in Paragraph 3 most probably means.

A．relatively high	B．extremely low
C．relatively low	D．extremely high

【小题3】 What can we learn from the text?

A．Eating fatty food has immediate effects on your heart.

B．The EPA conducted many studies on air quality.

C．Moderate air quality is more harmful than smoking,

D．Stricter regulations on pollutants should be made.

【小题1】A
【小题2】C
【小题3】D

解析试题分析：本文主要讲述的是空气污染导致人们的健康受到很大的威胁，文章中提出了具体的建议。
【小题1】A 主旨大意题。根据本文的主题段第一段的内容But there is another factor that can cause your heart problems more immediately: the air you breathe.说明本文主要讲述的是空气污染导致人们的健康受到威胁，故A正确。
【小题2】C 推理题。根据本句A separate study of stroke patients showed that even air that the U. S. Environmental Protection Agency (EPA) considers to be of “moderate” (良好）quality and relatively safe for our health can raise the risk of stroke as much as 34% within 12 to 14 hours of exposure.说明这里的“moderate”与下句的relatively safe形成呼应的关系，故C项正确。
【小题3】D 细节题。根据文章最后一句So stricter regulation by the EPA of pollutants may not only improve environmental air quality but could also become necessary to protect public health.可知要求我们制定严格的规章制度来保证空气质量，故D正确。
考点：考查健康类短文阅读
点评：本文主要讲述的是空气污染导致人们的健康受到很大的威胁，文章中提出了具体的建议。测试考生在阅读基础上的逻辑推理能力，要求考生根据文章所述事件的逻辑关系，对未说明的趋势或结局作出合理的推断；或根据作者所阐述的观点理论，对文章未涉及的现象、事例给以解释。考生首先要仔细阅读短文，完整了解信息，准确把握作者观点。

练习册系列答案

书屯文化期末寒假期末冲刺假期作业云南人民出版社系列答案

硕源教育中考总复习名师解密系列答案

初中学业水平测试用书激活中考系列答案

赢在寒假期末闯关合肥工业大学出版社系列答案

快乐寒假山西教育出版社系列答案

相关题目

Many animals recognize their food because they see it. So do humans. When you see an apple or a piece of chocolate you know that these are things you can eat. You can also use other senses when you choose your food. You may like it because it smells good or because it tastes good. You may dislike some types of food because they do not look, smell or taste very nice. Different animals use different senses to find and choose their food. A few animals depend on only one of their senses, while most animals use more than one sense.

Although there are many different types of food, some animals spend their lives eating only one type. The giant panda eats only one particular type of bamboo. Other animals eat only one type of food even when given the choice. A kind of white butterfly will stay on the leaves of a cabbage, even though there are plenty of other vegetables in the garden. However, most animals have a more varied diet. The bear eats fruits and fish. The fox eats small animals, birds and fruits. The diet of these animals will be different depending on the season.

Humans have a very varied diet. We often eat food because we like it and not because it is good for us. In countries such as France and Britain, people eat foods with too much sugar. This makes them overweight, which is bad for their health. Eating too much red meat and animal products, such as butter, can also be bad for the health. Choosing the right food, therefore, has become an area of study in modern life.

We can infer from the text that humans and animals .

A. depend on one sense in choosing food B. are not satisfied with their food

C. choose food in similar ways D. eat entirely different food

Which of the following eats only one type of food?

A. The white butterfly. B. The small bird.

C. The bear. D. The fox.

Certain animals change their choice of food when ________.

A. the season changes B. the food color changes

C. they move to different places D. they are attracted by different smells

We can learn from the last paragraph that _________.

A. food is chosen for a good reason

B. French and British food is good

C. some people have few choices of food

D. some people care little about healthy diet

Which of the following statements is true?

A. Animals often use senses to eat their food.

B. Most animals have a more varied diet.

C. All animals spend their lives eating one type of food.

D. The diet of birds and fox will be the same depending on the season.

阅读下面短文，从每题所给的四个选项中，选出最佳答案。

Hi, dear boys and girls! Do you know how to be a healthy kid? Here are some rules you should follow.

First, eat different foods, especially fruit and vegetables. You may have a favorite food, but you'd better eat something different, if you eat different foods, you will probably get more nutrients (营养物质) your body needs.

Then, drink water and milk as often as possible. When you're really thirsty, cold water is the No. l choice. Milk is a great drink that can give you more calcium (钙) your body needs to grow strong bones .

Next, listen to your body. How do you feel when you are full? When you are eating, notice how your body feels and when your stomach feels comfortably full. Eating too much will not make you feel comfortable and make you fat.

Afterwards, limit (限制) screen time. Screen time is the time you watch TV, DVDs and videos, or using computers. It is good to take more exercise such as basketball, bike riding and swimming. You can't watch TV for more than two hours a day.

Finally, be active. One thing you'd like to do as a kid is to find out which activity you like best. Find ways to be active every day.

Follow these rules and you can be a healthy kid.

You have to eat different kinds of foods especially _________.

A. meat 　　B. hamburgers　 C. sweets D. fruit and vegetables　

Which kind of drinks can give you more calcium?

A. Juice.　　 B. Milk.　　　　C. Cold water.　D. Tea.

According to the passage, how many rules should you follow if you want to be healthy?

A. Five.　　 B. Nine.　　　　　 C. Fifteen.　　　D. Thirteen.

According to the passage, which of the following is TRUE?

A. When you're eating, you don't have to pay attention to how your body feels.

B. You can eat your favorite food as much as you can .

C. You can watch TV whenever you like to get more information.

D. We should try to live in an active way in our life.

Which is the best title of the passage?

A. How to make yourself popular B. How to be a healthy kid

C. How to be a popular kid D. How to make your parents healthy

Bean and other seed shoots are also known as sprouts (新芽). The dry bean seeds contain a store of nutrients just waiting to be released when they sprout. Under the right conditions they will germinate (发芽)。 As they grow, the food value of the seeds is multiplied into vitamins, minerals (矿物质) and other nutrients. This happens almost overnight!

It is easy to grow your own sprouts, but you need to buy your seeds from supermarkets or health food stores. Seeds for planting in the garden are often powdered with chemicals, so when becoming sprouts they are not safe to eat.

Try growing sprouts from a variety of beans and seeds. You will find different sprouts at different stages. Bean sprouts are best when they are about three centimeters long. Wheat and sunflower sprouts taste best when the sprouts and the seeds are of the same length. If the sunflower sprout is too long it leaves a funny stinging feeling in the throat after eating. Alfalfa sprouts are best when their small leaves are well developed. Pea and soybean sprouts are good long or short.

If you leave your sprouts in filtered sunlight for a few hours, the leaves will turn green as chlorophyll (叶绿素) is added. Eating sprouts with green leaves benefits your blood, cells, and the digestive system.

Which of the following sprouts taste good whether they are long or short?

A. Soybean sprouts B. Sunflower sprouts

C. Alfalfa sprouts D. Wheat sprouts

As sprouts grow, the food value of the seeds will_____.

A. increase B. decrease C. remain the same D. lose

From the passage we know that______.

A. Long sunflower sprouts taste better than short ones

B. Eating too long sunflower sprouts will make you feel uncomfortable in the throat

C. Eating sprouts with green leaves will be harmful to your health

D. It takes a long time for the food value of the seeds to multiply

Which of the following is NOT true according to the passage?

A. Sprouts of seeds for planting in the garden may not be safe to eat.

B. Alfalfa sprouts taste best when their small leaves are more fully grown.

C. All sprouts taste best during the early stage of their growth.

D. Sunlight will make the leaves of sprouts green.

Section A (10 points)

Directions: Read the following passage. Complete the diagram by using the information from the passage. WRITE NO MORE THAN 3 WORDS for each answer.

Many students eat their breakfasts on the way to school or in the dinning-room. But some of them don’t really know how to eat well when eating out.

Here is some important advice. The first is to eat less fast food. The most obvious harm of eating too much fast food is weight gaining because of too much fat. Young people and adults are at risk of diseases related to weight.

Too much fast food can drag your body down. French fries, for example, were recently found to contain much more acryl amide(丙烯酰胺) than other food. This may cause cancer. Actually, deep fried food all contains acryl amide. So don’t eat it too often.

Soda is another thing you should watch out for. Cokes and other sodas contain a lot of sugar and can slow down a person’s calcium absorption, so it’s best to drink as little soda as possible.

Food in the dinning-room may not be as tasty as fast food, but it’s actually easier to make healthy choices. Human bodies need variety. You can have a meal that balances lean proteins, vitamins and complex carbohydrates(碳水化合物). In other words, a meal with fish or meat, vegetables and some bread or rice will provide you with most nutrients that the body needs.

Some snacks, on the other hand, will help keep you going until your next big meal. It is natural for teenagers, especially boys, to feel hungry during school time. Don’t forget to take some foods, like whole-grain biscuits or low-fat milk in your school bag.

Title: 71__________

Advice	Food	72.__________	73.__________	Kind
Eat less fast food	French fries and other 74__________	75.__________	Cause weight gaining	Unhealthy food
Eat less fast food	French fries and other 74__________	Acryl amide	76.__________	Unhealthy food
77._________	Sodas	Lots of sugar	Slow down 78__________	Unhealthy food
Eat in dinning-room	Fish or meat, vegetables and some bread or rice	Lean proteins, vitamins and complex carbohydrates	Provide most nutrients that the body needs	79._______
80. __________	Whole-grain biscuits or low-fat milk	Not mentioned	Keep you going until next big meal	Healthy food

Even a small reduction in salt in the diet can be a big help to the heart. A new study used a computer model to predict how just three grams less a day would affect heart disease in the United States.
The result：10％ fewer heart attacks. 8％ fewer strokes. 4％ fewer deaths. 11％ fewer new cases of heart disease. And 240 billion dollars in health care savings.
Researchers found it could prevent 10，000 heart attacks and 9。200 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 Uni versity.
Each gram of salt contains four hundred milligrams of sodium（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.
【小题1】We can tell from the passage that now heart attacks occur in the US every year.

【小题2】It can be inferred from the passage that .

A．all the heart diseases result from eating too much salt

B．the American Heart Association suggests less than 3 grams of salt a day for everyone

C．Americans ate no more than 5 grams of salt per day in the 1970s

D．the less salt one eats， the healthier he will be

【小题3】The last paragraph mainly tells us .

A．Bloomberg has made some other efforts to improve people’s health

B．Bloomberg is very successful in his career

C．parents must pay great attention to calorie information

D．a new study is being done about calorie information

试题分类