Are you carrying too much on your back at school? You’re not alone. Back experts in the United States are worried that young students are having back and neck problems as a result of carrying too much in their backpacks (schoolbags)
“It hurts my back when I run,”said Oberlin Reyes, a student in Virginia. “It’s hard to go up the stairs with my backpack,because it’s too heavy,”
Oberlin was among students whose backpacks were weighed for a week in a recent study.
They had regular backpacks with two straps(带子)to carry them, but a number of students with heavy loads had switched to rolling backpacks (which have wheels and can roll on the ground).
Shirley Park, whose backpack weighed 10 kilograms,said she changed to a rolling backpack because she was starting to have back pain.
How much is too much?Experts say students should carry no more than 10 to 15 percent of their own body weight.
A few students had one suggestion to lighten the load:less homework.
P.S.( 附)Doctor’s suggestion:
1 Lighten the load. Clean out binders(活页材料)and take home only the books you need that night.
2 Wide straps are better. They send out the weight over your shoulders more evenly(均匀)。 And be sure to wear both straps rather than hanging the pack over one shoulder.
3. Pack smart. The heavier things should be packed closed to the back.
4.Bend both knees when you pich up the pack ,and don’t just bend over at the waist.(腰)“_________”is the main idea of the text.
A The problem of backpacks is worth studying.
B The problem made by heavy backpacks
C What is the best backpack for a student.
D How to make students’backpacks light.According to Oberlin Reyes and Shirley Park, we know________.
A students have to do too much homework
B students have to carry several backpacks
C backpacks without wheels are bad for students
D too much homework leaves students no free timeThe expression “switched to” in the text perhaps means________.
A started to use B turned to C caught up D used forAccording to the passage ,it’s better for a student of 40 kilograms to carry a backpack of _____at most by the words of experts.
A 10kg B 8kg C 6kg D 7kg If students follow the doctor’s suggestions they ________.
A may lighten their backpacks
B can learn how to help themselves
C may feel their backpacks are lighter
D will know how to wear backpacks
“An apple a day keeps the doctor away.” Well, milk may work in the same way!
Milk is the natural food for mammalian(哺乳动物) babies. It helps them grow strong because it is rich in protein(蛋白质), calcium(钙) and vitamins. Milk can also help you sleep better because it calms you down.
But remember to drink milk with care. Find out how old the milk is. Make sure it is fresh and hasn’t gone bad. Don’t drink milk when your stomach is empty. Eat some bread or corn at the same time. That’ll help you take in more protein and vitamins.
Doctors say teens need at least 500ml of milk a day. That’s two or three cups. Milk-drinking started long ago, as early as 6,000-8,000BC. At that time people started to keep cows, sheep and goats to get their milk. Of course what you drink today isn’t that fresh from the cow. People cool the fresh milk down to 40C to stop the bacteria(细菌)growing. In factories, milk is pasteurized(灭菌) to stop it growing bad. After disinfections(消毒) and packaging, it goes to the supermarkets.
Yoghourt also comes from milk. People make some special bacteria to change the taste of milk and make the nutrients(营养) in it easier for people to take in. Maybe that’s why it’s getting more popular with people!Milk helps people grow strong because it is rich in ________.
| A．Calcium | B．protein |
| C．vitamins | D．A, B and C |
The sentence “An apple a day keeps the doctor away.” tells us that________.
| A．the doctor likes to eat apples every day |
| B．the doctor doesn’t like apples at all |
| C．the doctor eats an apple each day |
| D．apples are good for our health |
When you drink milk , you’d better________.
| A．find out when the milk was produced |
| B．make sure it’s fresh and hasn’t gone bad |
| C．not drink milk when your stomach is empty |
| D．do all of the above |
Why is it better to eat some bread or corn while drinking milk ?
| A．Our body can take in more protein and vitamins in this way. |
| B．That’ll help us grow taller and stronger. |
| C．That’ll help us taste milk better. |
| D．We’ll still feel hungry without eating some bread or corn. |
Which of the following statements is true ?
A. One cup of milk is good enough for teens each day.
B. Drinking milk is likely to make teens sleepy.
C. To stop the bacteria growing , people cool the fresh milk down to 40C.
D. Yoghourt is one kind of milk which has gone bad
Do you know the story about Vince? It was a true story. Vince was an English boy and he was eight years old. He didn't like soap or water. Three or four times a day his mother said to him, “Vince, your hands are very dirty again.” Go and wash them. ” But Vince never washed them well. He only put his hands in the water for a few seconds and then took them out again.
Vince’s uncle and aunt lived in another city. One day they came to stay with Vince’s parents, and they brought their small son, Toby, with them. Toby was seven years old and he didn’t like soap or water, either.
The boys sat with their parents for a few minutes and then they went outside. When they were playing, Vince looked at Toby's hands and then went back to Toby’s parents and said proudly (骄傲地）， “Toby’s hands are dirtier than mine, ”
“Of course they are，”Toby said angrily. “You are one year older than I am, ”Vince’s mother asked him to______three or four times a day.
| A．wash his hands | B．do his homework |
| C．clean his bedroom | D．wash his teeth |
When Vince saw Toby’s hands, he felt ________.
A, sorry B. proud C. sad D. terribleVince’s hands were a little______than Toby’s.
| A．dirtier | B．cleaner | C．bigger | D．smaller |
From the story we know that_______ .
| A．Vince liked soap and water, but Toby didn’t |
| B．Toby liked soap and water，but Vince didn’t |
| C．Vince and Toby liked soap and water |
| D．Vince and Toby didn’t like soap or water |
How many people are there in the story?
| A．Four. | B．Five. | C．Six. | D．Seven, |
It’s important for us to be healthy. But how can we keep healthy? First, you should eat fruit and vegetables three or four times a week. Then eat some tofu every day because it’s good for people, both the young and the old. Milk is also necessary(必要的），especially for women. So you should have milk twice a day. It can help you to be strong. Next, doing more exercise is better. You can do morning exercises or evening exercises. After supper you should take a walk.You should eat_______ three or four times a week.
| A．fruit and fish | B．vegetables and mutton |
| C．tofu | D．fruit and vegetables |
Tofu is good for ______.
| A．young people | B．old people |
| C．young and old people | D．students |
Why do people have milk?
| A．It，s delicious. | B．It’s a kind of drink. |
| C．It’s bad for you. | D．It can help you keep strong. |
You should have milk .
| A．four times a day | B．five times a week |
| C．twice a day | D．twice a week |
The passage mainly tells us__________.
| A．how to keep healthy |
| B．what health is |
| C．why health is important |
| D．how often you can eat tofu |
People travel to work in different ways. Some people walk to work because they live near their work places. Some people go to work by bike because they live farther away， or they like riding bikes. They think it's good for their health. Today more people have private (私人的) cars， so they can go to work in their cars. In the south of China， many people even go to work by boat because water is around their houses. Will people go to work by plane? I think so， if necessary（如果必要的话）.
根据短文内容， 判断下列句子正(T)、误(F)。All people like to go to work by bike.
Some people think it's good to go to work by bike.
Today more people drive to work.
In the north of China， many people go to work by boat.
The writer thinks some people will go to work by plane if necessary.
Mrs. King is an American doctor. She is now in China. She works in a children’s hospital（儿童医院）in Beijing. She is also learning Chinese medicine (中医) there. She likes Chinese medicine very much. She loves working for children. She works hard in the day and reads English books on (关于) Chinese medicine at night. She learns Chinese from the Chinese doctors and her Chinese friends. Now she can speak some Chinese. She can read some Chinese books， too.
Her husband Mr. King is a teacher. He teaches English in a junior high school in Beijing. He works hard， too. He works from Monday to Friday. He teaches three classes every day. Sometimes， on Saturdays and Sundays， he teaches other English classes. He wants to make more money (挣更多钱).
根据短文内容，选择正确答案。Mrs. King works in a _____.
| A．shop | B．junior high school in Beijing |
| C．hospital in Beijing | D．hospital in America |
Both of the Kings _____.
| A．live in America | B．live in Shanghai |
| C．work hard | D．work every day |
Mr. King works _____.
| A．in a junior high school in Beijing |
| B．in a children’s hospital in Beijing |
| C．in a junior high school in America |
| D．in a children’s hospital in America |
Mrs. King learns Chinese from _____.
| A．her teacher | B．the books |
| C．the doctors | D．the Chinese doctors and her Chinese friends |
Which of the following sentences is NOT true?
| A．Mrs. King can speak English and Chinese. |
| B．Mrs. King does’t know anything about Chinese medicine. |
| C．Mrs. King is from America. |
| D．Mr. King sometimes teaches other English classes on weekends. |
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