Are you carrying too much on your back at school? I’m sure lots of children of your age will say “Yes”. Not only the students in China have this problem, but children in the United States also have heavy school bags.

     Doctors are starting to worry about young students’ back and neck, because their schoolbags are too heavy for them.

    “It’s hard for me to go upstairs with my heavy bag.” Said Rick Hammond, an 11-year-old students in the US.

    Rick is among students who have schoolbags with two straps(带子), and many other students choose rolling(有滚轮的) bags.

    But even with rolling bags, getting upstairs and buses is still a problem for children. Doctors say students should carry no more than 10% to 15%of their own body weight.

    Scott Bautch, a back doctor, said children under Grade 4 should carry no more than 10%of their weight and older children shouldn’t stay with over15%,because their bodies are stillgrowing.

    Teachers and parents should do some things to help children. And the best answer is to have less homework.

(  ) 6.From the passage we can know that       .

A. only children in China carry too heavy school bags

B. children in other countries don’t carry too heavy bags

C. both children in China and the US carry too heavy school bags

D. only children in US carry too heavy school bags

(  ) 7.Children feel it hard for them to go upstairs because                  

A. they are too young   B, their school bags are too heavy

C. they are too heavy   D. their parents don’t always go upstairs with them.

(  ) 8.If a child carries a heavy school bag,        

A.his back and neck may be hurt  B. his head and arms may be hurt

C.his hands may be hurt        D. his feet may be hurt

(  ) 9. According to the doctor, Scott Bautch, if a child in Grade 5 weighs about 30 kilos,      the school bag he carries should not be over         .

A. 5 kilos  B. 3 kilos   C. 5.5 kilos  D. 4. 5 kilos

(  ) 10. Some students think the best answer to this problem is that       .

A. they should have a little homework to do after they get home

B. their teachers had better not ask them to do any homework

C. they should only take home the books they will read that night

D. they should use thin books instead of thick ones

Tropical cyclones(热带旋风) are called typhoons(台风) in Asia, and hurricanes(飓风)in North and South America. These storms go around like a wheel(轮子) turning to the left. They have wind spends of 60 kph or more. They can be very destructive(毁灭性的).In the United States, the Tropical Prediction Center in Miami, Florida, looks out for hurricanes. When scientists discover a true hurricane, they give it a name. They can use either a man’s or woman’s name. Why should hurricanes have names? The names make it easier forpeople to keep up with information about a hurricane and its dangers.

  The World Meteorological Organization(WMO) , an international weather group, decides what names will be used. The WMO makes six lists of names, using the English alphabet. Each list is used for one year. When a hurricane happens, it gets the next name on the listfor that year. For example ,the first hurricane of the year might have the name Abel, whilethe second one could Betty. The name lists do not include names beginning with the letters O, U, X, Y, and Z, since there are few names that begin with these letters. Asian countries use a different list. This list has a few personal names, but most of the names are of flowers, animals and trees.

( )1.Why should hurricanes have names?

A. It sounds interesting.

B. The names help people get information about a hurricane.

C. The names are only for the WMO.

D. It is traditional.

( ) 2.   decides what names will be used for hurricanes.

A.The Tropical Prediction Centre   B. A scientist   C.The WMO   D. Abel

( ) 3. Which name would a hurricane never have?

A.Rita      B. Veronica.   C. William  D. Yanni

( ) 4.The Fifth hurricane of 2010 might have the name    .

A.Diana     B. Darren    C. Erie    D. Connie

( ) 5. Asian countries name typhoons after     .

A. books and buildings        B. flowers and animals

C. mountains and rivers       C. oceans and rivers

John Smith is my 1 friend. He is a famous professor(教授).He is clever and 2 .He invited a robot, which could do a lot of things for him, so he won this year’s Best Scientist in California.

Last Sunday, he 3 Washington to get the prize. Before he  4 ,a lot of reporters had already been at the airport. They waited and waited, after a long time, but my friend John didn’t appear until the plane left. The reporters were very 5  .They shouted, ”Professor John has 6

The plane. Ha, Ha! What would he say?”

In the plane, there was a man came 7 the toilet 8  a wig (假发) on his head. He was short and  9 fat. He was wearing a pair of glasses and a suit with jeans. Ha, he was just Professor Smith. He disguised(乔装打扮) 10  because he didn’t want to be seen by the reporters.

( ) 1.A. closed        B. closing     C. close         D. near

( ) 2.A. work hard     B. hard-work  C. working-hard  D. hard-work

( ) 3.A. flew to       B. flies to     C. flied to       D. by plane to

( ) 4.A. arrived at     B. reached     C. got          D. arrived

( ) 5.A. exciting       B. excited     C. worried        D. worrying

( ) 6.A.left           B. caught      C. missed        D. lost

( ) 7.A. out of        B. into         C. in          D. outside

( ) 8.A. in           B. has        C. wears        D. with

( ) 9.A.a few        B. little        C. a little       D. a lot of

( ) 10.A. him        B. himself     C. his          D. he

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