As a result, the yearly income of the 69 family increased from 1950 to 1975 70 than the price of cars. For this reason 71 a new car takes a smaller 72 of a family’s total earnings today.

　　In 1951 73 it took 8.1 months of an average family’s 74 to buy a new car. In 1962 a new car 75 8.3 of a family’s annual earnings. By 1975 it only took 4.75 76 income. In addition, the 1975 cars were technically 77 to models from previous years.

　　The 78 of the automobile extends throughout the economy 79 the car is so important to Americans. Americans spend more money to 80 their cars running than on any other item.

　　61. A. kinds B. means C. mean D. types

　　62. A. denied B. reproduced C. replaced D. ridiculed

　　63. A. hardly B. nearly C. certainly D. somehow

　　64. A. trip B. works C. business D. travel

　　65. A. buy B. sell C. race D. see

　　66. A. quickly B. regularly C. rapidly D. recently

　　67. A. on B. in C. behind D. about

　　68. A. raising B. making C. reducing D. improving

　　69. A. unusual B. interested C. average D. biggest

　　70. A. slowest B. equal C. faster D. less than

　　71. A. bringing B. obtain C. bought D. purchasing

　　72. A. part B. half C. number D. side

　　73. A. clearly B. proportionally C. percentage D. suddenly

　　74. A. income B. work C. plans D. debts

　　75. A. used B. spend C. cost D. needed

　　76. A. months’ B. dollars C. family D. year

　　77. A. famous B. superior C. fastest D. purchasing

　　78. A. running B. notice C. influence D. discussion

　　79. A. then B. as C. so D. which

　　80. A. start B. leave C. keep D. repair

　　Methods of studying vary; what works 61 for some students doesn’t work at all for others. The only thing you can do is experiment 62 you find a system that does work for you. But one thing is sure: 63 else can do your studying for you. Meantime, there are a few rules that 64 for everybody. The hint is “doesn’t get 65 “. The problem of studying, 66 enough to start with, becomes almost 67 when you are trying to do 68 in one weekend. 69 the fastest readers have trouble 70 that. And if you are behind in written work that must be 71 , the teacher who accept it 72 late will probably not give you good credit. Perhaps he may not accept it 73 . Getting behind in one class because you are spending so much time on another is really no 74 . Feeling pretty virtuous about the seven hours you spend on chemistry won’t 75 one bit if the history teacher pops a quiz. And many freshmen do get into trouble by spending too much time on one class at the 76 of the others, either because they like one class much better or because they find it so much harder than they think, they should 77 all their time to it. 78 the reason, going the whole work for one class and neglecting the rest of them is a mistake, if you face this 79 , begin with the shortest and easiest 80 . Get them out of the way and then go to the more difficult, time consuming work.

　　61. A. good B. easily C. sufficiently D. well

　　62. A. until B. after C. while D. so

　　63. A. somebody B. nobody C. everybody D. anybody

　　64. A. follow B. go C. operate D. work

　　65. A. behind B. after C. slow D. later

　　66. A. hardly B. unpleasant C. hard D. heavy

　　67. A. important B. necessary C. impossible D. inevitable

　　68. A. three week’s work B. three week’s works C. Three weeks’ work D. three week’s works

　　69. A. Even B. Almost C. If D. With