Traffic is heavy and the price of oil is much ______ so that many people go to work by bus instead.

Traffic rules help to keep order on the road. They also help to keep people   26 . The pedestrian(行人) has as many rules to   27  as the driver of a car. You should walk on the sidewalk(人行道) or at the side of the road. Always look   28  before you walk across the street.
If you like riding a bike, don’t ride in the middle of the road or run   29  red traffic lights. When you ride a bike with a friend, don’t look around or talk.If you drive a car, you should   30  at the traffic lights. You must always   31  a seat belt(安全带). Without belts   32  the driver and the passengers may be badly hurt in a sudden accident.
You may not need to take a bus, but   33  if you have to travel in one. Get on or get off a bus only when it comes to a   34 . When it is full, don’t try to get inside   35  you may fall off.
Traffic rules are also called Road Safety rules. The maxim(格言) for all road users is “Thinking about others”.

Traffic rules help to keep order on the road. They also help to keep people   1 .
The pedestrian(行人) has as many rules to   2  as the driver of a car. You should walk on the sidewalk(人行道) or at the side of the road. Always look   3  before you walk across the street.
If you like riding a bike, don’t ride in the middle of the road or run   4  red traffic lights. When you ride a bike with a friend, don’t look around or talk.
If you drive a car, you should   5  at the traffic lights. You must always   6  a seat belt(安全带). Without belts   7  the driver and the passengers may be badly hurt in a sudden accident.
You may not need to take a bus, but   8  if you have to travel in one. Get on or get off a bus only when it comes to a   9 . When it is full, don’t try to get inside  10  you may fall off.
Traffic rules are also called Road Safety rules. The maxim(格言) for all road users is “Thinking about others”.

Traffic lights are very important for us. I think you know this. But do you know how they were born?

Garrett A. Morgan was the father of traffic lights. He was an American. His family was very poor. He left school at the age of 14. He was clever. He always looked for better ways to do things. And he liked to make new things.

At that time, every American wanted to have a car. The streets were full of cars. The traffic was really bad. “Why not put three lights at each corner ? They should be red_,green_,and yellow，” Morgan said , “ Let them tell cars to go or stop.” He made a timer (定时器)to change the lights.

So we have traffic lights today .

1.Today can help buses or cars to go regularly in cities .

A. Americans    B. Traffic lightsC. ChineseD. policemen

2.Garrett A.Morgan was the father of traffic lights. He came from.

A. Canada          B. England        C. America                 D. Japan

3.Why could Garrett A.Morgan invent traffic lights? Because.

A. he always looked for better ways to do things

B. his family was very poor

C. he wanted to have a car

D. He was clever

4.What did Garrett A.Morgan do when he was 14 years old ?

A.He studied at school.

B. He put three lights in the street.

C. He was away from school.

D. The streets were full of cars.

5.What color are the traffic lights ? They are .

A.green and whiteB.red and yellow

C. red , green and yellow.D.red and green