A．激发和培养学生学习英语的兴趣，养成良好的学习习惯和形成有效的学习策略B．使学生掌握一定的英语基础知识和听说……

单项选择题What does the author say about straight,horizontal bars painted across roads（）

A. They are suitable only on broad roads.
B. They are falling out of use in the United States.
C. They are ignored in a long period of time.
D. They cannot be used successfully to traffic circles.

单项选择题The American Automobile Association Foundation for Traffic Safety plans to（）

A. try out the Japanese method in certain areas
B. change the road signs across the country
C. replace straight, horizontal bars with chevrons
D. repeat the Japanese road patterns

单项选择题The advantage of chevrons over straight, horizontal bars is that the former（）.

A. can keep drivers awake
B. can cut road accidents in half
C. will look more attractive
D. will have a longer effect on drivers

单项选择题On roads painted with chevrons，drivers tend to feel that（）.

A．thev should avoid speed．related hazards
B. they are driving in the wrong lane
C. they should slow down their speed
D. they are coming near to the speed limit

单项选择题The passage mainly discusses（）.

A．a new way of highway speed control
B．a new pattern for painting highways
C．a new way of training drivers
D．a new type of optical illusion

单项选择题第（20）空应选择（）

A.song 
B.dream 
C.fire 
D.sister

单项选择题第（19）空应选择（）

A.that 
B.which 
C.it 
D.who

单项选择题第（18）空应选择（）

A.surprised 
B.excited 
C.encouraged 
D.interested

单项选择题第（17）空应选择（）

A.happy 
B.sad 
C.strange 
D.surprised

单项选择题第（16）空应选择（）

A.stopped 
B.began 
C.gone 
D.changed