2. There was a ______ on his way to school.

　 A. bridge　　　　 B. lake　　　　 C. wet ground　　　 D. playground

1. Tom ______.

　 A. lived too far away from school　 B. didn't come back home every day

　 C. went to school with his mother　 D. walked to school

5. Several rockets without men in them have flown to ______.

　 A. the stars　　　　 B. the satellites of the sun　 　C. the sun　　　　 D. another satellite of the sun

(B)　Tom didn't live too far from school. So he went there and back on foot every day. On his way to school he passed(路过)a wet playground when it rained. One day the boy came home very wet. His mother became angry and said, "Don't play in the water on your way home or to school. "The next day he came home very wet again. His mother became even angrier. "I'll tell　your father if you come home wet again." she said, "Then he'll punish(惩罚)you. "The next day the young boy was dry when he came home from school. "You were a good boy today," his mother said, "You didn't play in the water." "No," he answered sadly, "There were so many older boys in the water when I got there this afternoon that there wasn't any room for me at all."

4. The hot gas in the rocket is used for ______.

　 　A. keeping the air in the rocket fresh(新鲜的)　 B. keeping the men in the rocket warm

　 C. making the rocket fly up　　　　　　　　 　 D. cooking food for the men

3. A plane cannot fly to the moon because ______.

　 A. there is no air above 240 kilometres away from the earth　 　B. there is no gas in the plane

　 　C. the plane is not strong enough　　　　　　　　　　 　 D. the plane must be driven by a man

2. The earth is about 384, 000 kilometres away from the ______.

　 A. space　　　 B. universe　　　 C. sun　　　　 D. moon

1. Scientists have known ______ the moon is.

　 　A. how long　　　　 B. how heavy　　　　 C. how old　　　　 D. how big

14．She often helps her mother____________________(做家务)．

13．Why not____________________(去划船)？