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。

1.The passage is mainly about ________ on expressways in Chicago.

  A. the traffic control system                  B. the movement of the traffic

  C. the electric sensors                       D. the traffic lights

2.When the cars move under 30 miles an hour, ________ on the map in the control room.

A. the red light appears                      B. the red light turns yellow

C. the yellow light appears                   D. the green light turns red

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%

4.In Paragraph 2 the underlined word “it” refers to ___________.

  A. the red light                       B. the truck that needs repairing

  C. the traffic                         D. the truck that is fixing the road

5.The writer writes the article mainly by _________.

  A. giving reasons and results           B. giving examples and explaining them

  C. describing what he thinks          D. asking and answering questions

Once a small boy lived on a farm which seemed so far away from everywhere.
He needed to get up before sunrise every morning to help his father on the farm. During sunrise he would .a break and climb up on the fence(篱笆)along the side of the farm. He could see a house with golden windows. “If they could afford golden windows, then there must be other nice things inside the house.” He imagined how great it would be to live there. Then he promised himself, “Some day 1 will go there and see this wonderful place.”
One morning, his father would go to the town and told him to stay at home for a rest. Knowing that this was his chance, he took a sandwich and headed across the field towards the house with the golden windows.
As the afternoon went on, he began to know how wrong he was. The house was much farther than he had expected. As he went near the house, he saw no golden windows but instead a place in bad need of a painting. A small girl very close to his age came out of the poor house and stood by the broken fence. He asked her if she had seen the house with the golden windows. The girl said, “Sure, I know.” and invited him to sit on the porch (门廊).As he sat there, he looked back from where he just came. There he saw the sunset turned the windows of his house to gold! Now he understood that everyone had his own house with golden windows.
【小题1】During his break every morning, the small boy would _________.

Bicycles, a long-forgotten vehicle that seems to belong to the last century, are returning to the streets of Guangzhou, as the city starts to ban the running of motorcycle in urban Guangzhou.
“Business has never been so good for my shop,” said Chen Yongwu, a bicycle shop owner at the city’s Donghua West Road, “I have to work 12 hours a day to meet the demand of my customers. ”
“Even my wife and brother-in-law have to give me a hand lately. ”
Chen originally ran a motorcycle repair shop.  He grasped the opportunity of the motorcycle ban, and started his bicycle business soon after hearing about the banning.
“I sold 23 bicycles on January 2 alone. ” Said Chen.
Bicycle is more convenient and healthier
“My home is one kilometer from the metro station,” said a middle-aged man who is waiting for his bicycle at Chen’s shop, “it is too tiresome to walk to the station, but taking a bus for such a short distance is a waste of money. ”
“So I decided to buy a bicycle. ”
The bicycle costs around 600 yuan, which is equal to the bus fare of half a year.
“Besides, riding a bicycle to work is much healthier than riding a bus. ”
The bicycle buyers can be categorized into two groups.  One group of buyers buy the bicycles for the transportation of small commodities; the other ride the bicycles to work.
Arising problems
Riding a bicycle to work may be healthy, but it is not without problems.
The lack of bicycle lanes has posed a big threat to the safety of the bicycle riders in Guangzhou.
“I was riding my bicycle on Huifu West Road on day,” said Mr.  Zhang, “then suddenly the bus pulled over besides me near the bus station. ”
“I was so frightened at the time, because the bus nearly hit me. ”
The sideways in Guangzhou are usually crowded with foot passengers, so citizens also could not use the sideways.
“It is worse than walking. ”
Besides, finding a place a park the bicycles could be very difficult, much more difficult then finding a place to park your car.
【小题1】What is the min topic of the passage?

On a hot African morning, Leila was lying on her stomach and an elephant was walking towards her. Leila waited. Then she pushed the button on her camera. “And I got my best photo of an elephant ever, by lying under my car,” Leila explained. “I wanted to get close to the elephants, but of course this was dangerous; they had their babies with them. So every morning I used to park my car in the open near the path (小道). They used to take the same path every morning when they left the water hole. After a week, they were used to seeing my car. So the next morning, I lay under it and got my photo!”
Many of the best wildlife photos come from good planning. In Africa, photographers set up their hides (隐匿处) near water holes. They also set up hides near forest paths, as animals use the same paths every night. For bird-watching, many lakes have hides. Inside the hides, bird-watchers can watch all day in the shade (荫处) out of the wind and rain.
Good wildlife photos are needed for books, postcards, magazines and newspapers. But a success rate of 1 in 20 is good.
【小题1】Why did Leila lie under her car on the stomach?