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题型:阅读理解-阅读单选 难度:0.65 引用次数:44 题号:10613688

Organic food, grown without artificial chemicals, is increasingly popular nowadays. Consumers have been willing to pay up to twice as much for goods with organic labels. However, if you think paying a little more for organic food gets you a more nutritious and safer product, then you'd better save your money. A study led by researchers at Stanford University says that organic products aren't necessarily more nutritious, and they're no less likely to suffer from disease-causing bacteria, either.

For their new study, Smith-Spangler and her colleagues conducted a review of two categories of research,   including 17 studies that compared health outcomes between consumers of organic against traditional food products, and 223 studies that analyzed the nutritional content of the foods, including key vitamins, minerals and fats.

While the researchers found little difference in nutritional content, they did find that organic fruit and vegetables were 20% less likely to have chemicals remaining on the surfaces. Neither organic nor traditional foods showed levels of chemicals high enough to go beyond food safety standards. And both organic and traditional meats, such as chicken and pork, were equally likely to be harmed by bacteria at very low rates. The researchers did find that organic milk and chicken contained higher levels of omega-3 fatty acids, a healthy fat also found in fish that can reduce the risk of heart disease. However, these nutritional differences were too small, and the researchers were unwilling to make much of them until further studies confirm the trends.

Organic food is produced with fewer chemicals and more natural-growing practices, but that doesn't always translate into a more nutritious or healthier product. The U. S. Department of Agriculture(USDA) states that “whether you buy organic or not, finding the freshest foods available may have the biggest effect on taste.” Fresh food is at least as good as anything marketed as organic.

1. What does the underlined sentence in the first paragraph mean? ______
A.Organic food helps you save money.B.Organic food contains much more nutrients.
C.Organic food is worth the high price.D.Organic food is not always nutritious.
2. Smith-Spangler and her colleagues found that ______ .
A.organic food could reduce the risk of heart disease
B.traditional food was grown with more natural methods
C.both organic and traditional food they examined were safe
D.there was not a presence of any forms of bacteria in organic food
3. Which of the following is relatively healthier according to the passage?
A.Organic chicken and porkB.Organic milk and chicken
C.Traditional chicken and porkD.Traditional fruit and vegetables
4. What is the author's attitude toward organic food? ______
A.DoubtfulB.UnconcernedC.PositiveD.Supportive

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阅读理解-阅读单选(约260词) | 适中 (0.65)
文章大意:这是一篇说明文。作者主要告诉我们要养成良好的饮食习惯非常重要,以及怎样才是好的饮食习惯。

【推荐1】A car needs gas to run and your body also needs food to work for you. Eating the right kind of food is very important. It can help your body grow strong to 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 these food 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 seem easy to finish your supper with fish and chips all the time. But you will find yourself tired in these days and you can not 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 a good eating habit with some exercise is the key to your health.

1. Which group does cheese belong to?
A.The dairy group.B.The meat and fish group.
C.The fruit and vegetable group.D.The bread and rice group.
2. The underlined word “dairy” in the second passage means        .
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.
3. Which of the following is a good eating-habit?
A.Going to school without any breakfast
B.Eating fish and chips for supper all the time.
C.Eating your lunch in a very short time.
D.Having at least one food from all four groups in each meal.
4. What is the key to your health?
A.Have a good lunch.
B.Take more exercise
C.Drink milk and have vegetable everyday
D.Have a good eating habit and do some exercise
5. Which is the best title of the passage?
A.Four Main Food Groups in All
B.It’s Easy to Get into Bad Eating Habits
C.The Key to Your Health
D.Exercise Will Help You Eat More
2023-10-13更新 | 41次组卷
阅读理解-阅读单选(约330词) | 适中 (0.65)

【推荐2】Easy Habits That Help You Live Longer


Go for a jog

Among all the things you can do to achieve longevity, one of the most critical is to exercise. Aerobic activity, like running, is important for getting your blood pumping and your heart working. A recent study showed that a one-hour run adds seven hours to your life, up to four hours per week. People who run have a 25 to 40 percent reduced risk of early death, and live about three years longer.


♦Get more sun—but not too much

The “Sunshine vitamin” -vitamin D, that is-has been shown to fight disease, improve bone health, and avoid depression. One study even found it to extend lifespan by 33 percent. But because vitamin D comes from the sun, and our modem lives don't let us spend much time outside, we might not be getting enough. Getting 15 to 30 minutes of sun exposure a day should be enough for vitamin D production.


♦ Eat more plant protein

A recent study from Harvard found that people who ate a diet high in processed meats like ham, were at a higher risk of death—but those who got their protein from plants had a lower risk, especially of heart disease-related deaths. The study said that for every three percent increase in calories from plant protein there was a reduction in risk of death by 10 percent.


♦Eat nuts

Although you may think nuts are unhealthy because they are calorically high, the exact opposite is true—they can actually extend your life. A study from Harvard found that daily nut-eaters were 20 percent less likely to die during the study. Specifically, the rates of death from heart and breathing disease were reduced. Other research has shown walnuts have a huge role in heart health because of the amount of antioxidants (抗氧剂)they contain.

1. How long can you extend your life in a week by running?
A.1 hour.B.4 hours.
C.7 hours.D.28 hours.
2. What is special about proper sunshine compared with the other three tips?
A.It lengths life.
B.It benefits bone.
C.It fights heart diseases.
D.It makes breathing system healthy.
3. Which of the following best describes the last two tips?
A.Plant food is better than meat.
B.Heart disease causes the most deaths.
C.Nuts are unhealthy food.
D.Proper diets improve health.
2018-05-26更新 | 103次组卷
阅读理解-阅读单选(约370词) | 适中 (0.65)
名校
文章大意:本文是一篇说明文。主要说明长时间闻垃圾食品的气味会降低消费者的购买欲望。

【推荐3】It’s one of the ultimate tests of willpower: you’ve been wandering around the market for hours and you’re tired and hungry. Then you catch a smell of something fragrant (香的) and delicious, probably fried and almost certainly fattening. Junk food companies are well aware that the smell of their product sets off a desire in your brain and that you’ll pay for that later. It is a response that has been researched, and you’d better believe your favorite fast-food chains have marketing teams that are using that research to their advantage.

Let’s take a closer look at this process. Have you ever noticed that whatever indulgent food (放纵型食品) catches your attention tends to be most appealing just after you first smell it? A couple of minutes later you are standing in line, and it isn’t quite inviting as it was just moments ago, but now you’ve invested time, so you trust your first feeling to treat yourself.

But a recent statement says that this is actually the right moment to walk away. Dipayan Biswas, a marketing professor, found there is a direct connection between how long a person is exposed to indulgent food smells and choosing healthier foods. “The results of a series of experiments show that extended exposure of more than two minutes to junk food smells leads to fewer purchases of unhealthy foods compared with no smell or a non-junk-food-related smell,” reads the summary of his study.

What appears to be going on here is that the brain doesn’t necessarily distinguish between a pleasurable smell and a pleasant taste. “Extended exposure to an indulgent food smell brings pleasure in the mind, which in turn reduces the desire for actual consumption of indulgent foods,” he explains. So next time you feel you don’t have the willpower to resist cookies, smell all that sweetness for just a minute or two. To your brain it’s the same as actually eating cookies, and the purchase desire would decrease.

1. What can we learn about junk food smells from the first paragraph?
A.They can make a difference in marketing.
B.They hardly affect people’s food choices.
C.They are unlikely to fool wise customers.
D.They finally decrease people’s purchase desire.
2. What does the second paragraph basically serve as?
A.An argument.B.An example.C.A comparison.D.A comment.
3. Which statement will Biswas probably agree with?
A.The brain can’t tell where sensory pleasure is from.
B.The senses of taste and smell are closely linked.
C.The influence of food smells changes over time.
D.The behavior of smelling food doesn’t equal eating it.
4. Which of the following could the best title for the text?
A.Train Your Brain to Resist Junk Food
B.Watch Out for Tricky Marketing Tools
C.Food Addiction Is Never About Willpower
D.Smelling Junk Food Longer Can Keep You Off It
2023-01-20更新 | 219次组卷
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