I can’t remember when I started collecting litter．But it was when I got tired of   1   litter nearby and realized that no one else was going to pick it up．

I lived 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, and I wanted to   4   happy going there again．I made my first trip to clean the forest that afternoon．I took a big black rubbish bag with me．Ten minutes   5   starting to pick up litter, my bag was full! There were cans, bottles, broken glass and newspapers in it．

From then on, I   6   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, I keep it．I can’t understand why people drop litter．But I will keep picking it up  9   they stop dropping it．I know I’m only doing a small bit   10   the earth, but I still think it’s important．

1．A．seeing               B．throwing                 C．dropping                 D．cleaning

2．A．after                  B．for                         C．with                       D．in

3．A．such                 B．very                       C．so                          D．too

4．A．make                 B．feel                         C．look                       D．find

5．A．after                  B．later                        C．before                    D．of

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

7．A．tired                  B．sad                         C．interesting              D．great

8．A．many                B．few                        C．any                        D．much

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

Welcome to the City Zoo! There are many   1  in the zoo. Let’s see the koalas first. Koalas are  2  Australia. They are quiet,   3  and cute. Children like them very much. The kangaroos (袋鼠) are also from   4  . They are quiet and interesting,   5 they are not friendly.

The giraffes come from Africa. They have a    6  neck (脖子). They like to eat leaves. The lions are also from Africa. They are exciting, but a little   7  . Many people don’t like   8  . We also have pandas. They are from China. They are very cute and friendly, but they are very shy. So please be   9  .

Have   10  and enjoy yourself here!

Welcome to the City Zoo. There are many 1 in the zoo. Let’s see the koalas first. Koalas are 2 Australia. They are quiet, 3 and cute. Children like them very much. The kangaroos(袋鼠) are also from 4. They are quiet and interesting, 5 they are not friendly.

The giraffes come from Africa. They have 6 necks(脖子). They like to eat leaves. The lions are also from Africa. They are brave but a little 7. Many people don’t like 8. We also have pandas. They are from China. They are very cute and friendly, but they are very shy. So please be 9.

You 10 see many other animals in the zoo. Have fun and enjoy yourself here!

1.                A．children        B．flowers         C．animals   D．vegetables

2.                A．at             B．from           C．in   D．with

3.                A．friendly        B．successful       C．ugly D．difficult

4.                A．Canada         B．China          C．America  D．Australia

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

6.                A．short          B．big            C．long D．small

7.                A．smart          B．clever          C．difficult   D．dangerous

8.                A．it             B．you            C．us   D．them

9.                A．busy           B．clean           C．quiet D．new

10.               A．also can        B．can also        C．too can    D．can too

　　But there are serious 4 in big cities, too. The cost of living is 5 , and there are too many people in some places of the big cities. Every years many people move to the cities because they can 6 to find work there, to study at good schools, and to receive good medical care（医疗保健）. But 7 these people can't find work or a good place to live in. Also too many people in a small space make it 8 to keep the cities 9 and clean.