People  usually  talk  about  two  groups  of  colours: warm  colours  and  cool  colours.  Scientists  think  that  there  are  also  two  kinds  of  people: people  who  prefer  warm  colours  and  people  who  prefer  cool  colours. The  warm  colours  are  red , orange  and  yellow.  Where  there  are  warm  colours  and  a  lot  of  lights , people  usually  want  to  be  active.  People  think  that  red , for  example , is  exciting . Sociable  people , those  who  like  to  be  with  others , like  red . Scientists  also  find  that  warm  colours  can  produce  a  comfortable  feeling  and  that  time  seems to pass quickly  in  a  room  with  warm  colours  than  with  cool  colours . So  a  warm  colour , such as red or orange , is a good choice for a living  room or restaurant.
The  cool  colours  are  green , blue  and  violet . These  colours , unlike  warm  colours , are  relaxing . Where  there  are  cool  colours , people  are  usually  quiet . People  who  like  to  spend  time  alone  often  prefer  blue . Cool  colours  are  better for offices because it  can make people  who  are  working  feel  relaxed  and  calm.
【小题1】According to  this  passage , people  who  prefer  to  be  quiet  probably     .

—I want that red hat.

— .

A. Thanks B. Sorry C. Here you are

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

Look at that red car! I think it’s          in the world.

A．more beautiful     B．so beautiful        C．the most beautiful   D．such beautiful