精品一区二区免费在线观看_国产精品久久久久久av福利软件_97成人精品区在线播放_国内成人精品一区

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(帶子)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(活頁材料)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(均勻)。 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)

1.“_________”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.

2.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 time

3.The expression “switched to” in the text perhaps means________.

A started to use  B turned to  C caught up   D used for

4.According 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

5. 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

Here is a menu for a fast food restaurant. The prices are in American money, called dollars and cents. There are 100 cents in a dollar.

根據表格內容，選擇最佳答案。

1.How much is a small hamburger?

A. 1.80.                B. 2.00.                C. 2.30.

2.Jam is a kind of _________.

A. side dishes          B. sweets              C. drinks

3.They don’t serve _________ in this fast food restaurant.

A. coffee               B. fries               C. wine

4.A thirsty boy will probably ask for __________.

A. coca cola            B. donuts              C. a chicken burger

5.What can you buy if you have only three dollars?

A. A large salad and a large ice cream.  

B. A large chicken burger and a small cup of tea.

C. An apple pie and a large hamburger with cheese.

按要求改寫下列句子。每空一詞。(10分)

1.This bike is eighty dollars．(對劃線部分提問)

______ ______  ______this bike?

2.How about these red and blue T-shirts?(改為同義句)

_____ ______ these red and blue T-shirts?

3.Mr. Cool’s store sells bags．(改為否定句)

Mr. Cool’s store ______ ______ bags．

4.How much is the sweater?(改為同義句)

______the______ ______ of the sweater?

5.1 want a green T-shirt．(對劃線部分提問)

______   ______ you want?

" Wanted: A violin. Can’t pay much. Call…"
The ad in the newspaper made me remember my childhood. Because my family was  36 , I couldn’t have a violin. So I asked, "Daddy, may I have a   37 ？" Daddy’s face looked sad. But a few weeks later, Daddy went home with a case in his hand. Inside the case was a second—hand violin for seven dollars.
No one could know how   38  I was when I took my violin to school for my first lesson. Several years later, I became famous as a violinist. And then, I carefully   39 the violin away.
Now   40  this ad, I discovered the case deep in my closet(儲藏室). I put it on the table. Then I picked up the   41  , walked to the telephone and called the number.
Later in the day, a man aged about 30 knocked at the door. "I’ve been expecting
someone can answer my advertisement.  My daughter wants a violin so   42  ," he said, examining my violin. "How much is it?"
I said, "   43 dollars. "
"Are you surer" he asked. "Seven dollars," I  44  and then added, "I hope your daughter will be   45  to have it and enjoy it as I did. "
I smiled, but I found my tears roiling down my face.