【题目】The number of overweight people around the world is increasing. For example, in China the number rose from 9 percent to 15 percent between 1989 and 1992. The increases in Latin America and Europe were similar. However, the most worrying statistic is the increase in the number of overweight children. In America, almost 33 percent of children under five are overweight. In some parts of Europe, the rate is almost 30 percent. Even developing countries have problems. In Egypt, Chile and Armenia, for example, the rate is over 5 percent.

The problem is the change in our diets combined with the change in our lifestyles. We used to eat whole grains, vegetables, and fruit. Now we eat foods that contain a lot of fat and sugar. Experts(专家) say that it isn't surprising that people eat too much of the wrong foods. Everywhere we look there are advertisements for high-calorie, high-fat foods. These foods are low in nutrition but also low in cost. In other words, they may not be good for us, but they are really cheap. Some experts call this a toxic-food(有毒的食品) environment. Most of us do not realize this unhealthy environment. Therefore, we believe if we are fat, it's our responsibility. This is not completely true.

Today, many food companies are focusing on developing countries. In 1998, one soft-drink company told its employees that "Africa is a land of chance for us." The largest American fast-food company opens five new restaurants every day; four of them are located outside the United States.

It is terrible to think that we may soon live in a world where everyone eats fast food and drinks soda. However, it is not unavoidable. Governments should educate their people about the dangers of eating the wrong food. This is particularly important for tomorrow's adults.

1The numbers in Paragraph 1 are used to show ________.

A. the overweight problem B. the increase in population

C. the effects of being overweight D. the problems in developing countries

2It can be inferred from the text that food advertisements ________.

A. cause food prices to rise B. often give people useful information

C. affect the development of the food industry D. are partly responsible for overweight people

3What is the text mainly about?

A. Advertisements and life. B. Being overweight and its reasons.

C. Modern lifestyles and their effects. D. Being overweight and the environment.

【题目】任务型阅读
How to Manage Your Phone's Data Use
Smart phones give you access to a wealth of information and media, but most networks put a limit on the amount of data you can use each month. A typical phone contract includes a data allowance of between 500MB and 10GB per month. You see, your usage can mount up surprisingly quickly – watching a film on the phone is about 700MB in SD, an hour of streaming TV is around 500MB or 60-140MB for the same of radio, chatting on Skype for an hour is around 40MB.
If possible, wait until you can connect to free Wi-Fi before using your phone's data features.
When you are on the road, use your car's GPS, not your phone, to find the way. But maps are preloaded in a GPS, making this free to use.
Many of these are funded by ads that pop up on your screen. Every ad has to download through your network, using up your data allowance.
If you regularly need to use a lot of data on your phone, consider a data-compressing(压缩) app, such as Onavo(www.onavo.com). So you use less of your monthly allowance. You may have to subscribe to such compression services, so you'll need to weigh up whether it's worth the cost.

A. The more data, the higher the monthly cost.
B. Remember to use free Wi-Fi anywhere you go.
C. Try these tips to better manage your data use.
D. It compresses data before it is fed to your phone.
E. But you might end up paying more than expected.
F. The phone has to download map data as you move.
G. Be careful of how many “free” games you play on the phone.

【题目】阅读理解
You can tell a lot about people by looking at their hair – not just whether they brush, spray or blow-dry. Scientists have found a way to use hair to figure out where a person is from and where that person has been. The finding could help solve crimes, among other useful applications.
Water is central to the new technique. The liquid makes up more than half an adult human's body weight. Our bodies break water down into hydrogen(氢) and oxygen. Atoms of these two elements end up in our tissues, fingernails, and hair.
But not all water is the same. Hydrogen and oxygen atoms can vary in how much they weigh. In the case of hydrogen, for example, there are three types according to their weights. Each type is called a hydrogen isotope(同位素). And depending on where you live, tap water contains different isotopes.
Can hair record this information? That's what James R. Ehleringer, an environmental chemist at the University of Utah, wondered. To find it out, he and his colleagues collected hair from hair stylists in 65 cities across the United States. Even though people drink a lot of bottled water these days, the researchers have found that people's hair has the same isotopes as found in local tap water. That's probably because people usually cook their food with the local water.
Authorities can now use the information to analyze hair samples from criminals or crime victims and narrow their search for clues. For example, one hair sample used in Ehleringer's study came from a man who had moved from San Francisco to Salt Lake City. As his hair grew, it reflected his change in location.
(1)What do we know about the hydrogen isotopes according to Paragraph 3?
A.They are classified by size.
B.Each type of them differs in weight.
C.They can improve the quality of tap water.
D.Some of them cannot combine with oxygen.
(2)Why is it possible to know where people are from by analyzing their hair?
A.People use the same bottled water.
B.People wash their hair in different ways.
C.People's hair is affected by the weather of the places they stay.
D.People' hair indicates the type of water in the places they stay.
(3)The last paragraph is mainly to show _______.
A.how to recognize criminals
B.how to collect hair samples
C.the usefulness of hair analysis
D.the process of Ehleringer's study
(4)Which of the following can be the best title for the passage?
A.Water composition
B.Change your hair
C.Hair detectives
D.No way out

【题目】阅读理解
In agrarian(农业的), pre-industrial Europe,“you'd want to wake up early, start working with the sunrise, have a break to have the largest meal, and then you'd go back to work,”says Ken Albala, a professor of history at the University of the Pacific.“Later, at 5 or 6, you'd have a smaller supper.”
This comfortable cycle, in which the rhythms of the day helped shape the rhythms of the meals, gave rise to the custom of the large midday meal, eaten with the extended family.“Meals are the foundation of the family,”says Carole Couniban, a professor at Millersville University in Pennsylvania, “so there was a very important interconnection between eating together and strengthening family ties.”
Since industrialization, maintaining such a slow cultural metabolism has been much harder, with the long midday meal shrinking to whatever could be stuffed into a lunch bucket or bought at a food stand. Certainly, there were benefits. Modern techniques for producing and shipping food led to greater variety and quantity, including a tremendous increase in the amount of animal protein and dairy products available, making us more energetic than our ancestors.
Yet plenty has been lost too, even in cultures that still live to eat. Take Italy. It's no secret that the Mediterranean diet is healthy, but it was also a joy to prepare and eat. Italians, says Counihan, traditionally began the day with a small meal. The big meal came at around 1 p.m. In between the midday meal and a late, smaller dinner came a small snack. Today, when time zones have less and less meaning, there is little tolerance for offices' closing for lunch, and worsening traffic in cities means workers can't make it home and back fast enough anyway. So the formerly small supper after sundown becomes the big meal of the day, the only one at which the family has a chance to get together.“The evening meal carries the full burden that used to be spread over two meals,”says Counihan.
(1)What does Professor Carole Counihan say about pre-industrial European families eating meals together?
A.It was helpful to maintaining a nation's tradition.
B.It brought family members closer to each other.
C.It was characteristic of the agrarian culture.
D.It enabled families to save a lot of money.
(2)What does“cultural metabolism”(Line 1, Para. 3) refer to?
A.Evolutionary adaptation.
B.Changes in lifestyle.
C.Social progress.
D.Pace of life.
(3)What does the author think of the food people eat today?
A.Its quality is usually guaranteed.
B.It is varied, abundant and nutritious.
C.It is more costly than what our ancestors ate.
D.Its production depends too much on technology.
(4)What does the author say about Italians of the old days?
A.They enjoyed cooking as well as eating.
B.They ate a big dinner late in the evening.
C.They ate three meals regularly every day.
D.They were expert at cooking meals.

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