This is a street crossing. There are red and green lights at each corner（拐角）. Drivers must watch the lights carefully.

When there is a green light, the cars may go on. When there is a red light, the cars must stop. They must wait until the red lights change to green. Then they can go on. Sometimes the cars want to make a right turn or a left turn. They can make a right turn when the light is green or（或者） red. But they must wait until（直到）the green light is shining if they want to turn left.

Some people are color-blind(色盲) , they can not see the difference between red and green. These people must not drive, or there will be an accident. We must keep our street safe.

76. Drivers must pay attention to(注意) ______ at each corner of the street crossing.

A. the red light                      B. the green light

C. all kinds of lights                D. the red and green light

77. No one should drive on when_______.

A. the green light shows         B. the red light shows

C. there is a light                    D. the light changes

78. A car can turn right when there is _________.

A. a green light or a red one        B. not only（不但）a green light but also(而且) a red one

C. a green light and not a red one    D. no green light or red one

79. A car can’t make a left turn ______ the green light shines.

A. when                    B. because                    C. if                      D. until（直到）

80. Something may happen to a color-blind man if he_______

A. arrives                 B. walks                C. drives            D. runs

You want to run across the street to catch the bus which is leaving soon? But wait! You’d better not. If a policeman sees you, you’ll have to pay a fine (罚款). New traffic laws (交通法) say that if people cross the street when the light is red, they can be fined as much as 50 yuan.

Traffic accidents killed more than 104,000 people in China last year. Chinese cities have more cars than ever. Drivers and pedestrians (行人) must work together to make the streets safer. The law has new rules for drivers and pedestrians. Drivers have to slow down when they are close to crosswalks. If people are in a crosswalk, cars must stop to let them pass.

There are rules for bus drivers, too. If bus drivers smoke, drink or make phone calls while driving, they can be fined. Buses that carry too many people are also against the law. Pedestrians will have to walk more safely under the new law. They must cross streets at crosswalks. Also, they shouldn’t climb over the fences (栅栏) along streets.

Do you bike to school? It’s not a good idea to carry classmates on the back. You could be fined 50 yuan. And stay in the bike lane (慢车道) when you’re riding. The big roads are for cars and buses.

Do you like to ride your uncle’s motorbike? When you put on your helmet (头盔), ask him to put one on, too. People on motorbikes must wear helmets, the new law says. If they don’t, they’ll have to pay 200 yuan.

Do you ride in cars often? Don’t forget to put on your seat belt (安全带), even if you’re going for a short taxi ride. It could save your life.

If you see a hit-and –run (肇事逃逸), tell the police. They may give you a reward (奖赏). And don’t be afraid to help people to the hospital if they are hurt in an accident. Don’t worry about money. The new law says that doctors must take care of them even if they can’t pay right away.

(　 )32. Don’t go across the road when _______.

A. the light is green 　　　　　 B. the light is red

C. the bus is leaving 　　　　　 D. traffic is busy

(　 )33. If you are a bus driver, _______while you are driving, according to the new traffic laws.

A. you can make a phone call　　　　 B. you can’t talk to others

C. you can’t smoke　　　　　　　 　 　 D. you can drink

(　 )34. When you ride in a car, the first thing you must do is __________.

A. to put on the helmet　　　　　　　　 B. to tip the driver

C. to put on the seat belt　　　　　　　 D. to see if it carries too many people

(　 )35. You should do all the following EXCEPT _________.

A. carrying your classmate on the back when you’re riding a bike

B. phoning the police when you see a hit-and-run

C. helping people to the hospital if they are hurt in an accident

D. wearing your helmet while riding a motorbike

　　Many people have to do their own things every day. Some of them ride bikes and some of them drive cars, so streets look very busy.

　　This is a street crossing. There are red and green lights at each corner. Drivers must watch the lights carefully. When there is a green light, the cars may go on. When there is a red light, the cars must stop. They must wait until the light changes to green. Then they can go. Sometimes the cars want to make a right turn or a left turn. They can make a right turn when the light is green or red. But they must wait until the green light is shining if they want to turn left.

　　But some people are color-blind（色盲）. They can't tell the difference between red and green. These people must not drive. We must keep our streets safe.

(1) The streets look busy because ________.

[　　]

A．there are so many people and cars or bikes

B．the streets are not wide enough

C．many people like traveling

D．the streets are fewer than before

(2) Drivers must see ________ clearly at a corner of the street crossing.

[　　]

A．the people and bikes

B．the old and young people

C．the green light and the red light

D．the students who are going to school

(3) Cars can't go ________.

[　　]

(4) A car can turn right when ________.

[　　]

A．there is a green or red light

B．there is only a green light

C．there is only a red light

D．there is no way

(5) If someone is a color-blind, he ________.

[　　]