Ever since they were first put on the market in the early 1990s, gentically mon
题型：不详难度：来源：
Despite what it promiises,GM technology actually has not increased the production potential of any corp. In fact
Studies show that the most crown GM croo.
GM soybeans, has suffered reduced productivity. For instance, a report than analysed nearly two decades of research on mojor GM food crops shows that GM engineering has failed to significantly increase US crop production.
Something else, however, has been on the rise, While GM seeds are expensive, GM companics tell farmers that they will make good profits by saving money on pesticides（***虫剂）. On the contrary, US government data show that GM crops in the US have produced an overall increase in pesticide use compared to traditional crops. “ The promise was that you could use less chemicals and boost production. But nether is true,” said Bill Christison, President of the US National Farm Coalition.
At the same time, the authors of the book World Hunger: Twelve Myths argue that there actually is more than enough food in the world and that the hunger crisis is not caused by production, but by problems in food distribution and politics. These indeed deserve our efforts and money. Meanwhile, the rise in food prices results from the increased use of crops for fuel rather than food, according to a 2008 World Bank report.
As a matter of fact ,scientists see better ways to feed the world. Another World Bank report concluded that GM crops have little to offer to the challenges of worldwide poverty and hunger, because better ways out are available, among which “green” farming is supposed to be the first choice.
小题1:The author develops the second paragraph mainly .
| A．by classification | B．by comparison |
| C．by example | D．by process |
| A．Control. | B．Evaluate | C．Obtain. | D．Increase. |
| A．practicing “green” farming | B．use of less chemicals |
| C．fair distribution of their crops | D．using more crops for fuel |
| A．Optimistic | B．Defensive | C．Disapproving | D．Casual |
答案
小题1:C
小题2:D
小题3:B
小题4:C
解析
举一反三
At a children’s center in Baltimore, Maryland, young kids are finding hospital visits easier to deal with, thanks to a test program called HOPE. Patients in HOPE have a life-threatening condition where their kidneys(肾) no longer get rid of wastes from their blood. To get their blood cleaned, these kids must use the dialysis (透析) machines at the hospital three times a week, for at least three hours each time. HOPE allows kids to play Internet sports, racing, and other games with each other. They will be able to connect with kids in other hospitals who have the same problem. “We want to use the Internet to bring together kids who are ill, and let them know they are not alone,” said Arun Mathews, the doctor of the program. He loved video games himself and got the idea to connect kids all over the country.
Many researchers elsewhere are testing video programs that might help young patients. For example, nine-year-old Ben Duskin of San Francisco, California, who was struggling with cancer helped to design a video game where players got rid of cancer cells.
That’s all great news, because doctors already know that reducing pain and worry helps patients heal(痊愈) faster.
小题1:
According to the passage, the sick kids may feel less pain when they _________.
| A．use the dialysis machines | B．are in a car race |
| C．are playing video games | D．stay alone with illness |
HOPE allows the sick kids to play Internet games in order to _________.
| A．encourage them to fight against the illness | B．get rid of their pain and worry |
| C．let the kids make more friends | D．bring the kids in the country together |
Which of the following statements is true according to the passage?
| A．Grown-ups all think video games are bad for kids’ health. |
| B．Some doctors think video games may help the sick kids reduce pain. |
| C．The HOPE is a famous organization all over the world. |
| D．Arun Mathews is against the testing program. |
Which can be the best title for the passage?
| A．Video Games Are Bad for Health | B．Video Games May Help Reduce Pain |
| C．A Famous American Organization | D．HOPE Allows Kids to Play Online Games |
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）, and 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 Southem 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,and then you may save yourself some pre-bedtime calories. And watch your body gain the fat-burning effects.
小题1: The underlined 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 |
| 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. |
| A．eat something for breakfast | B．be careful about what you eat |
| C．heat up food before eating it | D．eat calorie-controlled food |
| A．who go to work early | B．who want to lose weight |
| C．who stay up late | D．who eat before sleep |
Daily habits like eating more healthy food would have kept millions of families from becoming bankruptif the patients had taken ways for early prevention. For example, keeping a balanced diet, such as not consuming too much animal fat and trying to have enough vegetables and fruits, seems to be quite important.
One very effective and costless way of prevention is regular exercise, which is necessary for a healthy mind and body. Regular exercise, such as running, walking, and playing sports is a good way to make people feel better or reduce stress.
In addition, health education plays a key role in improving people’s health. By giving people more information about health, countries could help people understand the importance of disease prevention and ways to achieve it. For example, knowing one’s family medical history is an effective way to help keep healthy. Information about health problems among close relatives will make them aware of what they should do to prevent certain diseases through lifestyle changes, which will work before it is too late.
However, paying more attention to disease prevention does not mean medical treatment is unimportant. After all, prevention and treatment are just two different means toward the same effect. In conclusion, we could save money on health care and treat patients more successfully if our country spends more money on health prevention and education.
小题1:What’s the best title of the passage?
| A．Prevention or Education? | B．Exercise or Illness? |
| C．Health or Illness? | D．Prevention or Treatment? |
| A．Unable to be cured. | B．Unable to pay one’s debts. |
| C．Stronger than ever before. | D．More successful than ever before. |
| A．dressing warmly can prevent diseases. |
| B．a balanced diet is cheaper than regular exercise. |
| C．the more health education, the better. |
| D．the government’s health budget should be increased. |
After tracking more than 20,000 people aged 45 to 79 years in the United Kingdom from about 1993 to 2007, Kay-Tee Khaw of the University of Cambridge and his colleagues found that people who adopted these four healthy habits lived all average of 14 years longer than those who didn"t．
“We"ve known for a long time that these behaviors are good things to do, but we"ve not seen this benefit before, ”said Susan Jebb, head of Nutrition and Health at Britain"s Medical Research Council．“The benefit was also seen regardless of whether or not people were fat and what social class they came from．”
Study participants（参与者）scored a point each for not smoking, regular physical activity, eating five servings of fruits and vegetables a day and moderate alcohol intake．
Public health experts said they hoped the study would inspire governments to introduce policies helping people to adopt these changes．But because the study only observed people rather than testing specific changes, it would be impossible to conclude that people who suddenly adopted these healthy behaviors would surely gain 14 years．
“We can"t say that any person could gain 14 years by doing these things, ”said Dr．Tim Armstrong, a physical activity expert at the World Health Organization．“The 14 years is an average across the population of what"s theoretically（理论上地）possible．”
“Most people
know that things like a good diet matter and that smoking isn"t good for them, ”Susan Jebb said．“We need to work on providing people with much more practical support to help them change．”小题1:Which of the following DOESN"T belong to the four healthy habits?
| A．Eat five servings of fruits and vegetables a day． |
| B．Do proper exercise in the morning every day． |
| C．Drinking alcohol in the proper amount every day． |
| D．Having a cigarette before going to bed every day． |
| A．Susan Jebb did not take part in the study． |
| B．the study observed people as well as tested specific changes． |
| C．there"s no need for people under 45 to adopt these good habits． |
| D．only those from first class can benefit from these healthy behaviors． |
| A．All the people are well aware of the harm of their bad habits． |
| B．People aged 45 to 70 have bad habits in the United Kingdom． |
| C．Governments should take measures to help people change their bad habits． |
| D．People have adopted the four healthy habits after knowing they"re good． |
| A．Smoking and Drinking Cuts You 14 Years |
| B．How to Live a Much Healthier Life |
| C．Healthy Habits May Give Extra 14 Years |
| D．How to Make Your Life Longer Than Others |
But you might want to think again. Scientists now say that 5 seconds is all it takes for foods to become polluted with enough bacteria（细菌）to make you sick.
Bacteria can cause many kinds of illnesses. Some kinds of bacteria can grow on food. If you eat foods on which these bacteria are growing, you can become sick.
One of these food-borne bacteria is Salmonella. It makes 1.4 million people sick every year. Salmonella is often found in raw eggs and chicken. Cooking kills these bacteria, which is why it is so important to cook eggs, chicken, and other foods thoroughly.
But how long does it take these bacteria to pollute food? A team of scientists in South Carolina did an experiment. First, they placed an amount of Salmonella on three surfaces; wood, tile (瓦片), and carpet. They placed a piece of bread and a piece of bologna（一种大红肠）on each surface for 5, 30, or 60 seconds. After just 5 seconds, both the bread and the bologna picked up enough bacteria to make you sick.
So, forget the 5-second rule. If your toast drops on the floor, throw it away and get another piece of clean toast. And this time, be careful not to drop it!
小题1:In which part of a newspaper can you most probably find this passage?
| A．Culture | B．Health | C．Advertisement | D．Technology |
| A．throw away dirty toast immediately and go away |
| B．pick up the toast as quickly as possible and eat it |
| C．eat the toast within 5 seconds and feel pleased |
D．get another piece of clean toast quickly and eat it |
| A．see how quickly bacteria can pollute food |
| B．show that the 5-second rule is correct |
| C．see how harmful bacteria are to people’s health |
| D．show that bacteria grow at different speeds on different foods |
最新试题
- 下列山脉不是东北—西南走向的是[ ]A．大兴安岭B．太行山C．巫山D．天山
- 地震发生时，附近轮船上的人的感觉是（ ） A．左右摇晃B．上下
- 依次填入下列句子横线处的词语，最恰当的一项是①假日带你坐在脚踏车前头藤椅上到处 ，那种激动喜悦，也还是昨天的事
- （文）已知圆锥的母线长l=5cm，高h=4cm，则该圆锥的体积是______cm3．
- 阅读下列材料，回答相关问题材料一 一种事业若对社会有益，就应当任其自由，广其竞争。竞争愈自由、愈普遍，那事业就愈有利于社
- 阅读下列材料，回答问题。 材料一 所谓“新”，指的是(美国)抛弃了自1776年以来所确定的自由放任、自由竞
- 某中学在校园文化建设中坚持“让墙壁说话，让小草育人”的理念，这是因为 [ ]A、自然环境影响文化环境B、文化环境
- 如图是小球做平抛运动的闪光照片的一部分，正方形小方格每边长L=1.09cm，闪光的快慢是每秒30次，则可以计算出小球做平
- 计算：。
- 阅读理解。
热门考点
- 某食品厂为了检查一条自动包装流水线的生产情况，随即抽取该流水线上40件产品作为样本算出他们的重量（单位：克）重量的分组区
- 默写。（1）征蓬出汉塞， 。（王维《使之塞上》）（2）
- （12分）已知集合（1）分别求出;（2）已知，若，求实数的取值范围.
- 一个图钉跟一把铁锤比较，下列说法不正确的是[ ]A. 它们含有的物质一样多 B. 铁锤含有的物质多 C. 图钉和
- 下面是对湟水中学100名学生调查的结果，根据表内资料回答问题。内容·人数·了解程度知道父母生日知道好友生日知道偶像歌星生
- 已知二次函数f（x）图象过点（0，3），它的图象的对称轴为x = 2，且f（x）的两个零点的平方和为10，求f（x）的解
- 在下列说法中是错误的（ ）A．在△ABC中，∠C=∠A-∠B，则△ABC为直角三角形B．在△ABC中，若∠A：∠B：∠
- 若方程x+2m=8与方程4x﹣1=3的解相同，则m=（ ）．
- 人体与植物体在结构层次上的主要不同是人体具有A．细胞 B．组织 C．器官 D．系统
- 因式分解： .
© 2017-2019 超级试练试题库,All Rights Reserved.