摘要: The cars which are produced in Hubei Province sell very well.

网址:http://m.1010jiajiao.com/timu3_id_2849356[举报]

In Chicago, a computerized system has been developed that controls(管理)traffic on the city’s 235 miles of seven expressways. Now one—a controller—can follow the movement of Chicago’s traffic by looking at a set of lights. The system uses electric sensors(感应器) that are built into each expressway, every half a mile. Several times a second, the computer receives information from each sensor and translates it into green, yellow or red lights on a map in the control room. A green light means traffic is moving forty-five miles an hour, yellow means thirty to forty-five miles an hour, and red means heavy traffic—cars standing still or moving less than thirty miles an hour.
“See that red light near Austin Avenue?”the controller asked a visitor.“That’s a repair truck fixing the road, and the traffic has to go around it.”At the Roosevelt Road entrance to the expressway, the light kept changing from green to red and back to green again.“A lot of trucks get on the expressway there,”the controller explained.“They can’t speed up as fast as cars.”The sensors show immediately where an accident or a stopped car is blocking the traffic, and a truck is sent by radio to clear the road. The system has lowered the number of accidents by 18 percent. There are now 1.4 deaths on Chicago’s expressway for each one hundred million miles traveled, while in other parts of the county there are 2.6.
Traffic experts say that the Chicago system is the “coming thing”.Systems like Chicago’s are already in use on some expressways in Los Angeles and Houston.“Chicago has taken the lead,”said New York City’s traffic director and he added,“Chicago’s a good example.”
根据短文内容,选择最佳答案,并在答题卡上按要求作答。
【小题1】The passage is mainly about ________ on expressways in Chicago.

A.the traffic control systemB.the movement of the traffic
C.the electric sensorsD.the traffic lights
【小题2】When the cars move under 30 miles an hour, ________ on the map in the control room.
A.the red light appearsB.the red light turns yellow
C.the yellow light appearsD.the green light turns red
【小题3】 According to the passage, we may learn __________.
A.some visitors are traveling on the expressway
B.there is no heavy traffic on Chicago’s expressways
C.the traffic on Chicago’s expressways is well managed
D.the number of accidents in the US has dropped by 18%
【小题4】In Paragraph 2 the underlined word “it” refers to ___________.
A.the red lightB.the truck that needs repairing
C.the trafficD.the truck that is fixing the road
【小题5】The writer writes the article mainly by _________.
A.giving reasons and resultsB.giving examples and explaining them
C.describing what he thinksD.asking and answering questions

查看习题详情和答案>>
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. When there is a red light, the cars must stop. They must wait until the red light changes 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 red. But they must wait until the green light is shining if they want to turn left.
Some people are color-blind(色盲). They can not tell the difference(不同) between the red and green lights. These people must not drive, or there will be accidents. We must keep our streets safe.
【小题1】Drivers must watch _____ carefully at each corner.
A.green lights         B.red lights            C.both green lights and red lights
【小题2】When there is a red light _____ .
A.the cars must stop                B.the cars may go on      C.the cars may make a left turn
【小题3】Cars can make a right turn when _____ .
A.there is a red light              B.there is a green light     C.there is a red or green light
【小题4】Color-blind people may have accidents because _____ .
A.they can’t see cars
B.they can’t see the lights
C.they can’t tell the difference between the red and green lights
【小题5】According to (根据) the passage _____ must not drive.
A.young people     B. color-blind people             C.old men
查看习题详情和答案>>

Mr. Carrey worked at a big company. He went to work by bus. One day when he was standing at the bus-stop, he watched cars go by. Many of the cars were new Sherry 700s, and most of them were yellow.

Mr. Carrey was a person who did not like to be different from other men. He always wore the same clothes as other men, ate the same food as other people, and did the same things after work as they did.

Two months later, Mr. Carrey bought a new yellow Sherry 700. He was very pleased with it, and drove to work in it the next morning. When he saw all the other Sherry 700s, in front, behind and on both sides of him, he was even more pleased with his car.

Mr. Carrey parked his car in a big car-park near the office building, and walked to his office. But when he came back at five o’clock, there were so many yellow Sherry 700s in the car-park that Mr. Carrey did not know which car was his. He tried his key in some of the cars, but people passing by gave him a look which he did not like. So he stopped.

Mr. Carrey could do nothing but wait nearly forty minutes until his car was the only yellow Sherry 700 left in the car-park.

1.Mr. Carrey bought a new yellow Sherry 700 because__________________ .

A.he did not like taking a bus

B.he liked to be different from other men

C.he liked to do the same things as other people

D.the bus did not always come on time.

2.In the car-park, “people gave him a look” because _____ .

A.he could not open the door of his car

B.he was trying to open the door of more than one car

C.he was in the wrong car-park

D.he had a new yellow car

3.Mr. Carrey had to wait until _____ in the car-park.

A.there was only one car left

B.there was no one about to look at him

C.there was only one yellow Sherry 700 left

D.there were no yellow Sherry 700s left

 

查看习题详情和答案>>

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网