.Are you carrying too much on your back to school? Lots of kids of your age are.

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Are you carrying too much on your back to school? Lots of kids of your age are. Not only are students in China suffering from the problem, but kids in the United States are puzzled by heavy school bags.
Experts are starting to worry that young students are having back and neck problems as a result of school bags being too heavy for them. It is hard for me to get up the stairs with my bag because it"s so heavy, said Rick Hammond, an 11-year-old student in the US.
Rick is among the students who have regular backpacks(背包) with two straps (带子) to carry them, but a number of other students choose rolling backpacks. But even with rolling backpacks, getting up stairs and buses with them is still a problem for kids. Many of them have hurt their knees, backs or necks because of heavy school bags.
　 But how much is too much? Experts say students should carry no more than 10 to 15 percent of their own body weight. Scott Bautch, a Wisconsin back doctor, said kids under 4th grade should stay with 10 percent, but it’s also important that older kids don’t go beyond (超出) 15 percent, because their bones are still growing.
Bautch explained that there are other injuries caused by backpacks. Kids are losing their balance and falling down with these backpacks, he said.
Parents and teachers are starting to tell kids to only take home library books they will be reading in the evening. Some teachers are using worksheets (作业单 ) or thin workbooks for students to take home.
One of the best answers is, as some kids suggest, to have no homework at all!
60. According to experts, a primary student in Grade 6, who is 4

0 kilograms, should carry a bag weighing ______ kilograms at most.
A. 4 　 B.6 　C.8 　 D.10
61. As school bags are too heavy for younger students to carry, they ______.
A. show no interest in studying at s

chool.
B. often fall ill
C. are having back and neck problems
D. usually ask their parents for help
62. The author wrote the passage to _____.
A. seek(寻找) ways to solve the problem of heavy bags
B. appeal (呼吁) to teachers for caring for the students
C. criticize(批评) the government for having done nothing to help students
D. tell us that heavy bags are bad for students’ health
63. Parents and teachers are starting to tell kids to take home only library books they will be reading in the evening to ______.
A. make students more interested in reading than watching TV
B. give them more free time to play
C. make their bags easier to carry
D. let them sleep early at night

答案

60---63 BCDC

解析

略

举一反三

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Ellis Island is located in New York Harbor. Ellis Island is open daily all year round from 9:30 a.m. to 5 p.m., with extended hours during summer. It is closed on December 25. There is no admission fee to Ellis Island; but donations(捐赠) are gratefully accepted.
At Your Fingertips
Park information (212) 363-7620
Emergencies (212) 363-3260
Ferryboat information (212) 269-5755
Lost and found (212)363-7620
Dining, gifts & audio tour 344-0996
Transportation
Statue of Liberty and Ellis Island Ferry; Boats leave from Battery Park, Manhattan, and from Liberty State Park, New Jersey. They run about every 30 to 45 minutes beginning at 9:15 a.m.
(The time for ferry is changeable)
Hours: May vary; call the number above
Closed: December 25
Ferry fees (includes Liberty and Islands) adults, $7; senior citizens, $6; Children (age 3~17), $5. (Group rates are available for 25 or more adults.)
64. In summer, visitors will have ______ to visit Ellis Island.
A. a limited time B. a wonderful time       C. a longer time   D. a shorter time
65. Which number would you call if our friend were suddenly ill?
A. (212)344-0996     B. (212)363-7620    C. (212) 269-5755 D. (212) 363-3260
66. Which of the following is NOT true？
A. People can visit Ellis Island free of charge.
B. The boats departure time from Battery Park is at 9:15 all the year round.
C. Ferry fees for children are cheaper than for adults.
D. Ferry fees for group visitors can be reduced.
67. We may infer from the passage that______.
A.boat is the only transportation to Ellis Island
B.visitors prefer to go to Ellis Island by boat
C.there are more visitors in winter
D.Ellis Island is open every day

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Some people can stay up all night and still get work done the next day. I’m not one of them. After a night without enough sleep, I feel sleepy. I have trouble remembering things. And all I want to do is to go back to bed and sleep.
How do you feel after you’ve stayed up late to finish schoolwork? Or the day after a slumber(睡眠) party? Scientists now say that your answers to these questions may depend on your genes, which tell our bodies and brains what to do. People have about 40,000 genes, and each gene can have different forms.
A new research suggests that a gene called period3 affects how well you function without sleep. The discovery adds to older evidence that period3 helps determine whether you like to stay up late or get up early.
The period3 gene comes in two forms: short and long. Everyone has two copies of the gene. So, you may have two longs, two shorts, or one of each. Your particular combination depends on what your parents passed on to you.
Scientists studied 24 people who had to stay awake for 40 hours straight. Then they took tests that measured how well they could remember lists of numbers.
Results showed that the people with the short form of period3 performed much better than those with the long form did. In both groups, people performed worst in the early morning. After the first round of experiments, participants were finally allowed to sleep. People in the group that performed well on the tests took about 18 minutes to nod off(瞌睡).
People with long period3 gene fell asleep in just 8 minutes. They also spent more time on deep sleep. That suggests that people with the long form of the gene need more and deeper sleep to keep their brains working in top form.
I think I must have the long form period3. What about you?
68. The purpose of the writer in the first paragraph is to ____________.
A. attract readers to the topic of the passage
B. show his /her poor memory for things
C. show his /her envy of those energetic people
D. prove his/her need for sleep
69. Whether you can stay up or not depends on___________.
A. the size of your brain         B. the kind of genes you have
C. your health                 D. your will
70. The aim of the research is to _______.
A. find a new gene called period3   B. find out how genes affect a person’s need for sleep
C. test how long you can stay awake   D. measure how good your memory is

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第二节（共5小题；每小题2分，满分10分）
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项。选项中有两项多余的选项。注意：请将答案填写在答题纸表格里对应的题号上。
There is an English saying, " 71 ". Until recently, few people took the saying seriously. Now, however, doctors have begun to look into laughter and the effects it had on human body. 72 .
Tests were carried out to study the effects of laughter on the body. People watched funny

films while doctors checked their hearts, blood pressure, breathing and muscles. It was found that laughter has similar effects to physical exercise.   73   it also works several groups of muscles in the face, the stomach, and even the feet. If laughter exercises the body, it must be beneficial.
Other tests have shown that laughter appears to be able to reduce the effect of pain on the body. In one experiment doctors produced pain in groups of students who listened to different radio programs. The group that tolerated(忍耐) the pain for the longest time was the group which listened to a funny program.    74
75   They have found that even if their patients do not really feel like laughing, making them smile is enough to produce beneficial effects similar to those caused by laughter.

A．Laughter can make one’s life longer.

B．As a result of these discoveries, some doctors in the United States now hold laughter clinics, in which they help to improve their patients’ condition by encouraging them to laugh.

C．The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemicals in the brain which diminish both stress and pain.

D．Laughter is the best medicine

E. They have found that laughter really can improve people"s health
F. It increases blood pressure, the heart beating and breathing;
G. Although laughter can help cure the disease, doctors still can not put this theory into clinic practice.

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Commercial (商业广告) business is profitable (有利可图的),and most radio and TV stations depend on the income. The prices for radio and TV commercials are different according to the popularity (声望) of the station and the time they give. Take WGY, a rock music station in Albary, New York, for instance, they ask $100 for a one-minute commercial from 6 a.m. to 10 a.m., the morning driving time. This is a time when people are driving on their way to work and they like to turn on their car-radios.
During other hours of the day the cost varies (变化) from $25 to $60 for one minute. TV commercials are much more expensive. During a good national or international football game or baseball game, the price for a one-minute TV commercial may reach as high as $100,000. On local TV station, prices of commercials are different according to the different programmes and the time of showing. At 7 p.m., when the TV stations are showing their most popular programmes, the price for a commercial for 30 seconds is $800.
49. This passage mainly tells that ________.
A. WGY, a rock music station earns much money by broadcasting commercials
B. the prices for commercials are different according to the different programmes
C. TV commercials are much more expensive than radio ones
D. commercial business can help most radio and TV stations earn a lot of money
50. The prices for radio and TV stations depend mainly on _______.
A. different radio and TV stations
B. different time the commercials are given
C. the most popular programmes
D. all of the above
51. How much does WGY, a rock music station ask for a half minute commercial at 9 a.m.?
A. $25                          B. $50                          C. $60                          D. $100
52. When a commercial is shown at 7 a.m. on the local TV station for one minute, it will cost ________.
A. eight hundred dollars                                     B. eighty hundred dollars
C. sixteen hundred dollars                                  D. sixty hundred dollars

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A tour of the Wuyi Mountains in the northwest of Fujian Province is well worth your time. This place has clear rivers, beautiful forests on hills and peaceful villages. The UN honored much of Wuyi in 1999. Since then, more and more tourists have visited it and some have used air travel to get there. But you will be glad to know that it is still a special quiet place to see. Yunufeng, or Jade Lady Peak, is as beautiful as ever. Jiuquxi, a river in the shape of a snake in the southwestern part of the Wuyi Mountains, is still green and clear as it travels nearly ten kilometers to the flats (平地) below. On the river you can see many high hills or stop to climb a rock staircase to the top of Tianyoufeng. From there you might stand in a light warm rain as you look out over the beautiful valleys (山谷) below. Clouds come and go among the mountains and into the valleys. Birds sing cheerfully in the forest, perhaps calling out names from long ago. In another part of the river you can take a boat down a whitewater but be sure to wear a T-shirt and shorts as you will get wet! If you need to wear glasses, tie them to your head. Don’t change your mind about going down the river! Be brave! Some guides will help you on the boat and take care of you on the river. You can watch the green water become white as it begins to move more rapidly. You will probably feel b

oth excited and nervous, but enjoy the ride! When your journey is finished, don’t forget to go to the village nearby and try the famous Wuyi rock tea. Then you can have a rest and think about the trip.
53. The Wuyi Mountains lies __________ of China.
A. in the northwest                                            B. in the southwest
C. in the southeast                                             D. in the northeast
54. On the top of Tianyoufeng tourists can ____________.
A. fly fog between the mountains and into valleys
B. hear birds calling out names from long ago
C. get wet all over because of heavy rain
D. enjoy the beauty of a dream world
55. How can you describe the boat ride down a whitewater?
A. Dangerous              B. Adventurous            C. Not worth trying           D.Too frightening
56. From the passage we can conclude that ___________.
A. the Wuyi Mountains is well worth visiting
B. only one way leads to the top of Tianyoufeng
C. the glasses must be tied to your head on Jiuquxi
D. the Wuyi rock tea is tried only after the trip

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