The word“day” has two meanings. When we talk about the number of days in a year,  we are using “day” to mean 24 hours. But when we talk about day and night,  we are using“day” to mean the time between sunrise and sunset. Since the earth looks like a ball,  the sun can shine on only half of it at a time. Always one half of the earth is having day and the other half night. A place is moved from day into night and from night into day over and over by the spinning（旋转）of the earth. At the equator（赤道）day and night are sometimes the same length（长度）. They are each twelve hours long. The sun rises at 6 o’clock in the morning and sets at 6 o’clock in the evening. For six months the North Pole is tilted（倾斜）toward the sun. In those months the Northern Hemisphere（半球）gets more hours of sunlight than the Southern Hemisphere. Days are longer than nights. South of the equator nights are longer than days. For the other six months the North Pole is tilted away from the sun. Then the Southern Hemisphere gets more sunlight. Days are longer than nights. North of the equator nights are longer than days. Winter is the season of long nights. Summer is the season of long days.

1.When the Western Hemisphere is having day,  the Eastern Hemisphere is having ________.

　　A. both day and night　　　　　　　B. day

　　C. neither day nor night　　　　　　D. night

2.A place is moved from day into night and from night into day over and over by ________ of the earth.

　　A. the pushing　　B. the pulling　　 C. the spinning　　D. the passing

3.．At the equator day is as long as night ________.

　　A. sometimes　　 B. never　　　　 C. usually　　　　D. always

4.When the North Pole is tilted toward the sun,  the Northern Hemisphere gets ________ sunlight.

　　A. less　　　　　B. more　　　　 C. all　　　　　　D. no

5.．When it is winter in China,  ________.

　　A. the USA is tilted toward the sun

　　B. the South Pole is tilted away from the sun

　　C. the North Pole is tilted toward the sun

　　D. the North Pole is tilted away from the sun

Jeff Keith has only one leg. When he was only twelve years old, Jeff had cancer. Doctors had to　16　 off most of his right leg.
　17　 Jeff puts on an artificial leg(假肢). The leg is plastic. With the plastic leg, Jeff can ski, ride a bicycle, swim, and play soccer. He can also run.
Jeff made a plan with his friends who had plastic legs, 　18　. They decided to 　19　 across America. They all wore special T-shirts.　20　 it was “Run, Jeff, Run, Jeff Keith’s Run Across America”.
Jeff Keith ran across the United States from the east to the west 　21　 he was twenty-two years old. He started running in Boston(波士顿). Seven　22　 later, he stopped　23　 in Los Angeles（洛杉矶）. He ran 3,200 miles (1 mile =" 1.6093km)." Jeff wore out thirty-six pairs　24　 running shoes and five plastic legs. Jeff　25　 in cities on the way to Los Angeles. In every city people gave Jeff money. The money was not for Jeff,　26　 for the American Cancer Society. The Society used the money to help people know 　27　 about cancer.
On the way to Los Angeles, Jeff talked to people about　28　. Jeff is disabled, but he can do many things. He finished college and is studying to be a lawyer(律师). Jeff says, “People can do　29　 they want to do. I want people to know that. I ran　30 for disabled people. I ran for everybody.”

Jeff Keith has only one leg. When he was only twelve years old, Jeff had cancer. Doctors had to 　16　 off most of his right leg.

　17　 Jeff puts on an artificial leg(假肢). The leg is plastic. With the plastic leg, Jeff can ski, ride a bicycle, swim, and play soccer. He can also run.

Jeff made a plan with his friends who had plastic legs, 　18　. They decided to  　19　 across America. They all wore special T-shirts. 　20　 it was “Run, Jeff, Run, Jeff Keith’s Run Across America”.

Jeff Keith ran across the United States from the east to the west 　21　 he was twenty-two years old. He started running in Boston(波士顿). Seven 　22　 later, he stopped 　23　 in Los Angeles（洛杉矶）. He ran 3,200 miles (1 mile = 1.6093km). Jeff wore out thirty-six pairs 　24　 running shoes and five plastic legs. Jeff 　25　 in cities on the way to Los Angeles. In every city people gave Jeff money. The money was not for Jeff, 　26　 for the American Cancer Society. The Society used the money to help people know 　27　 about cancer.

On the way to Los Angeles, Jeff talked to people about 　28　. Jeff is disabled, but he can do many things. He finished college and is studying to be a lawyer(律师). Jeff says, “People can do 　29　 they want to do. I want people to know that. I ran 　30 for disabled people. I ran for everybody.”

1.A. take       　B. cut            C. put               D. set

2. A. Every day 　B. One day      C. Some day       D. A day

3. A. also      　B. too            C. either           D. neither

4.A. walk       　B. fly            C. swim         D. run

5. A. On              B. In         C. With          D. Above

6.A. while      　B. because        C. when          D. if

7. A. months    　   B. days        C. hours            D. minutes

8.A. running      B. to run     C. walking      D. to walk

9.A. at     　B. for            C. in               D. of

10.A. reached   　B. studied        C. stopped      D. started

11. A. and      　B. but        C. or           D. so

12.A. more　　　 B. less        C. fewer            D. little

13.A. cancer    　 B. walk      C. society      D. America

14.A. any       　 B. thing     C. nothing  D. anything

15. A. not only    B. not       C. only         D. just

My mum only had one eye. She cooked for students and teachers to    16   the family when I was young.
One day my mum came to　17  hello to me in primary school. I was so embarrassed（尴尬的） that I threw her a hateful  18 and ran out.
The next day at school, one of my classmates said, “Your mum only has one eye!” and   19     at me.
I hated my mum and decided to leave her, so I studied very hard. Later I got a chance to go abroad to study and I left my mother.　20　graduation I worked, bought a house and got    21 there. Then I had kids of my own. I was happy with my wife and my kids. But one day someone knocked at my door. It was my  22  !When she stood by the door, my children laughed at her, and I   23  at her, “How dare you come to my house and scare my children! GET OUT OF HERE NOW!” And to this, my mum　24   answered, “Oh, I’m so sorry. I may have got the wrong   25  ,”and she disappeared.
One day, a letter regarding a school reunion（聚会） came to my house. So I　26  to my wife that I was going on a business trip. After the reunion, I went to the old house.
My neighbors said that she    27   . I did not have a single tear. They handed me a letter that she had wanted me to have.
My dearest son,
    I am thinking　28　 you all the time. I’m sorry that I came to your house and scared your 　29　 .
     I was so glad when I heard you were coming for the reunion. But I may not be able to even get out of bed to see you. I’m sorry that I was still an embarrassment to you when you were growing up.
   You see…when you were very little, you got into an accident, and lost your eye. As a mother, I couldn’t stand watching you grow up with one eye. So I gave you    30   .
   …  With all my love to you!
                                                               Your mother