9．In America，the driver's education is part of the regular high school curriculum（课程）．Every student in his or her second year of high school is required to take a class in the driver's education．However，unlike other courses，it is not given during the regular school year．Instead，it is a summer course．The course is divided up into two parts：class time for learning laws and regulations and driving time to practice driving．Class time is not unlike any other class．The students have a text from which they study the basic laws they must know to pass the written driving test that is given to anyone wanting to get a driver's license．
Driving time is a chance for the students to get behind the wheel（steering wheel方向盘） and practice starting steering，backing up，parking，switching lanes，turning corners and all the other maneuvers（操作） required to drive a car．Each student is required to drive a total of six hours．The students are divided up into groups of four．The students and the instructorgo out driving for two hour blocks of time．Thus，each student gets half an hour driving time per outing．The instructor and the"driver"sit in front of seat and the other three students sit in the back．
Drivers Ed cars are unlike other cars in which they have two brakes（刹车系统），one on the driver's side and one on the other side where the instructor sits．Thus，if the student driver should run into difficulties the instructor can take over．The car also has another special feature．On the top of the car is a sign that reads：STUDENT DRIVER．That lets nearby drivers know that they should use extra caution（小心） because the student driver is a beginning driver，not very experienced and prone to driving slowly．
After the student has passed the driver's education course and reached the proper age to drive （ this age differs in every state but in most cases the person must be 16years old），they can go to a designed state office to take the driver's test，which is made up of an eye examination，a written test，and a road test．The person must pass all three tests in order to be given a driver's license．If the person does well in his or her driver's education class，he or she will pass the test with flying colors and get a driver's license．
51．In America，the driver's course mentioned aboveB
A．is considered as part of the advanced education．
B．is given to anyone wanting to get a driver's license．
C．is carried on at the same time as other courses．
D．is offered to all the students of Grade 2in high schools．
52．To prevent accidents，a driver Ed carB．
A．has sign inside it
B．has two sets of brakes
C．is big enough to hold five persons
D．can't run very fast
53．The students are required toA in their whole driving practice．
A．go out driving for twelve hours
B．spend at least six hours driving
C．drive for two hour blocks of time
D．get half an hour driving
54．Which of the following does not agree with the requirement for the students wanting to get the driver's license？A
A．They must be 18years of age．
B．They should go to have the driver's test．
C．They must have their eyes examined．
D．They ought to do well in the driver's course．
55．The underlined word instructor in the passage is closest in meaning toC．
A．partner
B．parent
C．teacher
D．headmaster．
