In North America, most students go to school by bus. The subway is also widely used in some cities. In small towns and cities, walking is still popular.

The yellow school bus is a familiar sight all over North America. It is a very convenient form of transportation because it takes students right to the entrance to the school. It also gives students opportunity to chat with their friends. However, the bus is slow and does not always pick up on time.

The subway is a means of getting around quickly in many cities. However, it is expensive and can be very crowded during rush hour. Another disadvantage of the subway is that the stops are not so close to the school, and students often have to walk considerable distance or take a bus from the subway stop to the scho

Walking has a number of advantages for those who live reasonable close to school. It's free and it provides a form of exercise. However, it's no fun if you have a large backpack full of books to carry. It's also unpleasant if the weather is either too hot or cold or wet.

1.In North America, most students usually go to school by_________.

A. school bus or subway B. car or bicycle C. taxi or car

2. For many students, the yellow school bus is convenient but it is_________.

A. too expensive B. slow and sometimes late      C. crowded and dirty

3.Subways are fast but the stops are often a little bit_________the school.

A. close to B. busy for C. far away from

4.Walking is a good way for the students that live reasonable close to school and it is_________.

A. not convenient B. bad for health C. good for health

5.This passage is about_________in North America.

A. transportation B. students C. schools

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

In North America, most students go to school by bus. The subway is also widely used in some cities. In small towns and cities, walking is still popular.
The yellow school bus is a familiar sight all over North America. It is a very convenient form of transportation because it takes students right to the entrance to the school. It also gives students opportunity to chat with their friends. However, the bus is slow and does not always pick up on time.
The subway is a means of getting around quickly in many cities. However, it is expensive and can be very crowded during rush hour. Another disadvantage of the subway is that the stops are not so close to the school, and students often have to walk considerable distance or take a bus from the subway stop to the scho
Walking has a number of advantages for those who live reasonable close to school. It's free and it provides a form of exercise. However, it's no fun if you have a large backpack full of books to carry. It's also unpleasant if the weather is either too hot or cold or wet.

1. 1.

   In North America, most students usually go to school by_________.

   1. A.
      school bus or subway
   2. B.
      car or bicycle
   3. C.
      taxi or car
2. 2.

   For many students, the yellow school bus is convenient but it is_________.

   1. A.
      too expensive
   2. B.
      slow and sometimes late     
   3. C.
      crowded and dirty
3. 3.

   Subways are fast but the stops are often a little bit_________the school.

   1. A.
      close to
   2. B.
      busy for
   3. C.
      far away from
4. 4.

   Walking is a good way for the students that live reasonable close to school and it is_________.

   1. A.
      not convenient
   2. B.
      bad for health
   3. C.
      good for health
5. 5.

   This passage is about_________in North America.

   1. A.
      transportation
   2. B.
      students
   3. C.
      schools