完型填空。(每小题0.5,计5分)
Perhaps you ride a bicycle to school. Riding a bicycle can be great fun. Do you know how to ride a bicycle 41 ?
Careful boys and girls learn to ride their bicycle well 42 they go out on the road. How can you tell 43 you are a good rider or not?
If you can ride a bicycle in a straight line, you can ride well. If you can’t, you should practice riding 44 a safe place. To be safe on a bicycle, you 45
to use both hands and both feet. 46 your feet on the pedals (脚踏) and your hands on the handle bars (把手) at all times.
Do you have a basket on your bicycle? If so, put your books and other things in the 47 .
You know that your bicycle is built for one person. It is not safe to carry anyone
48 you. 49 is this so? Keep 50 safe by safety rules when you ride on a bicycle.
A. safe |
B. safely |
C. save |
A. before |
B. after |
C. until |
A. that |
B. how |
C. whether |
A. in |
B. at |
C. to |
A. must |
B. need |
C. may |
A. Keep |
B. Make |
C. Let |
A. box |
B. bag |
C. basket |
A. to |
B. for |
C. with |
A.Why |
B. What |
C. How |
A. yours |
B. you |
C. yourself |