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.”

I can’t remember when I started collecting litter. But it was when I got tired of seeing litter nearby and ___1___ that no one else was going to pick it up.

I live near a forest in Ohio, America. I can walk there ___2___ three minutes. I used to love going there to play with my dog. But one day there was ___3___ much litter there that I became very unhappy. I decided I had to clean up the forest. I wanted to feel happy ___4___ there again.

I __5___ my first trip to clean the forest that afternoon. I took a big black rubbish bag with me. Ten minutes after starting to pick up litter, my bag was ___6__! It had cans, bottles, broken glasses and newspapers in it. From then on, I went to the forest four times a year to pick up litter. I’m often there for three hours. It makes me feel ___7___ to do something for the environment.

After each trip, I look at all the litter that I’ve found. If ___8___ of it is recyclable(可回收的) , I keep it. I can’t understand ___9___ people drop litter. But I will keep picking it up until they stop dropping it. I know I am only doing a small bit to ___10___ the earth, but I still think it is important.

I can’t remember when I started collecting litter. But it was when I got tired of seeing litter nearby and ___1___ that no one else was going to pick it up.
I live near a forest in Ohio, America. I can walk there ___2___ three minutes. I used to love going there to play with my dog. But one day there was ___3___ much litter there that I became very unhappy. I decided I had to clean up the forest. I wanted to feel happy ___4___ there again.
I __5___ my first trip to clean the forest that afternoon. I took a big black rubbish bag with me. Ten minutes after starting to pick up litter, my bag was ___6__! It had cans, bottles, broken glasses and newspapers in it. From then on, I went to the forest four times a year to pick up litter. I’m often there for three hours. It makes me feel ___7___ to do something for the environment.
After each trip, I look at all the litter that I’ve found. If ___8___ of it is recyclable(可回收的) , I keep it. I can’t understand ___9___ people drop litter. But I will keep picking it up until they stop dropping it. I know I am only doing a small bit to ___10___ the earth, but I still think it is important.

I can’t remember when I started collecting litter. But it was when I got tired of   46   litter nearby that I realized no one else was going to pick it up.

I live near a forest in Ohio, America. I can walk there   47   three minutes. I used to love going there to play with my dog. But one day there was   48   much litter there that I became very unhappy. I decided to clean up the forest, and I wanted to   49   happy when I went again. I made my first trip to clean the forest that afternoon. I took a big black rubbish bag with me. Ten minutes   50   I started to pick up litter, my bag was full! There were cans, bottles, broken glass and newspapers in it.

From then on, I  51  to the forest four times a year to pick up litter. I often stay there for three hours. It makes me feel   52   to do something for the environment. After each trip, I look through all the litter that I’ve collected. If   53   of it is recyclable（可回收利用的）, I’ll keep it. I can’t understand why people drop litter. But I will keep on picking it up   54   they stop dropping it.. I know I am only doing a small bit   55   the earth, but I still think it is important.

1.A.seeing                           B.throwing                          C.dropping                         

2.A.after                    B.for                                     C.in

3.A.such                     B.very                                   C.so                                     

4.A.make                   B.feel                                    C.look                                  

5.A.after                    B.later                                  C.before                             

6.A.had gone            B.have gone                       C.go                            

7.A.tired                     B.sad                                    C.great

8.A.many                   B.few                                    C.any                

9.A.until                     B.after                                 C.as soon as                      

10.A.helped                        B.to help                              C.help                                  

I can’t remember the date when I started collecting litter. But it was when I got tired of seeing litter near my home and realized that nobody else was going to pick it up.

I live close to a forest in Ohio, America. I can walk there within three minutes! I used to love going there to play with my dog. But one day there was so much litter there that I became very unhappy. I decided to clean up the forest.

I made my first trip to clean the forest one afternoon. I took a big black rubbish bag with me. Ten minutes later, my bag was full of cans, bottles, broken glass and newspapers.

Since that first trip three years ago, I’ve been to the forest four times a year to pick up litter. I’m often there for three hours. It makes me feel great to do something for the environment.

After each trip, I look at all the litter I’ve found. If any of it is recyclable(可回收的)，I’ll keep it. I can’t understand why people drop litter. But I will keep picking it up until they stop dropping it.

I know I can only do a small bit to help the earth, but I still think it is important.

1.When did the writer begin to collect litter?

A.  When he was very young.

B.  After his home moved to a new place.

C.  When he got tired of seeing litter near his home.

2.Where does the writer live?

A.  He lives in a forest.

B.  He lives in a place with much litter.

C.  He lives near a forest.

3.The writer collects litter________.

A.  in order to make the place clean

B.  in order to make fun

C.  in order to make money

4.Where does the writer collect litter?

       A. In the forest      B. In the street         C.  In the park.

5.From the passage we infer(推断) __________

       A．the writer always collects a lot of litter

       B .the environment will be more beautiful if everyone tries to protect it.

       C. the writer will go on collecting litter.