1 . How often do you exercise? A new study found that most kids aged 12 to 15 weren't getting enough physical activity. The results were based on about 800 kids. As part of the study, the kids tracked and reported on their own activity levels, and took physical exams.

U. S. fitness guidelines suggest an hour or more of physical activity every day. According to the study, only 1in 4 U.S. kids get enough physical activity.

"It's certainly worrying to see that our kids have such a limited amount of physical activity each day,” said Dr. Stephen Pont. He is an expert on children's health.

Few kids in the study met the guidelines on physical activity that raises the heart rate and makes people breathe harder. Overall, about 25% said they got an hour of that kind of exercise every day. Kids also reported on which activities they did most often outside of school gym class--basketball for boys and running for girls.

The study found that fat teenagers were less active than normal-weight girls and boys. Fat girls were slightly less active than normal-weight girls, but levels were similar among overweight and normal-weight boys. The study also said that the percent of fat children aged 2 to 19 was 17%, or about 12.5 million kids.

"There's always room for improvement," said Tala Fakhouri, who was the leader of the study. She also said the results provide useful information to help with fitness campaigns such as Let's Move, which was initiated by Michelle Obama in 2010. To inspire kids to eat right and get in shape, Michelle visits schools and holds exercise events. She also calls on schools to offer regular gym classes.

The study also found kids who get physical education at school may get better grades.

1. What is the result of the new study?

A．800 kids don't get enough physical activity.

B．Most U.S. kids don't get enough exercise.

C．Kids should get physical activity every day.

D．It's important to take physical exams.

2. Which of the following sports do girls like best?

A．Swimming.

B．Basketball.

C．Running.

D．Gym.

3. What's the purpose of the campaign Let's Move?

A．To help kids to keep fit.	B．To provide useful information.
C．To offer regular gym classes.	D．To hold exercise events.

4. According to the study children with enough exercise may__________.

A．be less active than fat children	B．be more willing to help others
C．do better in their studies	D．try their best to get in shape

2 . 假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌写的以下作文．文中共有10处语言错误，每句中最多有两处．每处错误仅涉及一个单词的增加、删除或修改．
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词．
删除：把多余的词用斜线（\）划掉．
修改：在错的词下划一横线，并在该词下面写出修改后的词．
注意：1．每处错误及其修改均仅限一词；

2．只允许修改10处，多者（从第11处起）不计分．

Nowadays fewer students take exercise due to various reason and some students fall ill every now and then because of they are not healthy or strong enough． However， we should take exercise regularly to improve our health．

First of all， taking PE classes seriously． In PE classes we can build up our bodies with the careful guidance of PE teachers． Secondly， it is of great important to make it a routine to exercise after class or during breaks． In addition， it was also a good idea to join a sports club that you are interested．

As the old saying go， "The first wealth is health．" Let's do more exercise to live a better and healthy life．

3 . The modern competitive sport of weightlifting originated in 19^th-century Europe and was included in the first modern Olympic Games in 1896.     1     At that time, simple competitions were held to see who could lift the heaviest weight.

The first worldwide weightlifting championships were held in London in 1891. At that time, there were no female competitors. Today, the World Weightlifting Championships, organized by the International Weightlifting Federation (IWF), are held every year.     2    

Weightlifting as an Olympic event got off to an unsmooth start. It was not held as a separate event in the first games held in 1896, but as a field event.     3     The sport returned to the Olympics again in 1904, this time as part of the athletics program. Not until 1920 did weightlifting make its real Olympic comeback. The 1920 Olympic Games, held in Antwerp, Belgium, marked weightlifting’s debut（首次露面）as a separate event.     4     Previously, weightlifters in the Olympics were all required to compete against each other, regardless of their size. One-hand lifting was dropped from the sport in 1928. Various weightlifting exercises were added and later removed over many years until 1972.     5     The 2000 Olympic Games in Sydney saw the introduction of the women’s competition, although the IWF has held the World Weightlifting Championships for women since 1987.

A．The 1940 and 1944 Games were canceled.

B．It is a sport in which barbells are lifted competitively.

C．The 1900 Games had no weightlifting presence at all.

D．The championships include 15 separate weight types for both men and women.

E．The 1972 Olympic Games finally presented the weightlifting program in its present form.

F．The sport, however, dates back to ancient civilizations including China, Egypt and Greece.

G．The Antwerp Games also introduced one-hand lifting and weight divisions to the new event.

4 . Exercise

Exercise is a way of keeping the body healthy through being active. Another name for exercise is physical fitness. Most people exercise in their spare time. Sports are some of the most popular ways to get exercise.

The two main kinds of exercise are aerobic exercise (有氧运动) and anaerobic exercise (无氧运动). Sports such as football and basketball are great forms of exercises.     1    

Aerobic exercise is energetic movement that lasts for a certain period of time.     2     The lungs and the heart work harder to bring in extra oxygen. Swimming, cycling, running and rapid walking are good examples of aerobic exercise.

Anaerobic exercise is a powerful burst of movement followed by a period of rest. During anaerobic exercise the muscles need more energy than the body can make with its supply of oxygen. After the exercise a person feels out of breath because the muscles have worked without oxygen.     3    

Exercise affects every part of the body in positive ways. It improves balance and coordination (协调).     4     Exercise strengthens the heart and increases the lungs’ ability to take in oxygen. Through exercise the bones and muscles get stronger, and the whole body becomes healthy and strong.

    5     People who exercise generally have a more positive, happy attitude.

A．This is because they combine both of these types.

B．Frequent and regular exercise helps prevent diseases.

C．Exercise also gives people a greater feeling of well-being.

D．It also improves posture, or the resting position of the body.

E．Weight lifting, jumping, and golfing are all types anaerobic exercise.

F．Physical exercise can contribute positively to keeping a healthy weight.

G．During aerobic exercise the body combines oxygen with sugar to get more energy.