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Part Ⅳ Cloze （10%）
Directions：There are 20 blanks in the following passage，and for each blank there are 4 choices marked A，B，C and D at the end of the passage. You should choose ONE answer that best fit into the passage. Then mark the corresponding letter on the Answer Sheet with a single line through the center.
Do you forget to turn off the lights and heaters when you go out of a room？In 2040 it will not 56 . They will turn themselves off—and on again when you return. A sensor will 57 the presence of a human and turn the systems on ， and when the humans 58 it will turn them off again.
The sensors will work 59 the central home computer ，and they will do much more than just turn the fires and lights on and off for you . They will detect 60 electrical appliances ，plugs or switches ，61 them so that they cannot harm anyone and then 62 you that they need 63 . They will detect fire and if you are out of the house ，the computer will call the fire brigade . It will also call the police 64 the sensors detect an intruder （闯入者）. This will not be too difficult 65 the locks on the 66 doors will be electronic . You will open them using your 67 card —the one you use for 68 —maybe using a number 69 only to you .
The computer will be 70 than a fireman-policeman servant . It will be an entertainer ，and most of your 71 will come 72 into your home. It does now，73 by 2040“entertainment” will 74 much more . For one thing，you will be able to take 75 actively，rather than just watching.
56. A. matter B. function C. work D. mind
57. A. evaluate B. uncover C. detect D. expose
58. A. retire B. leave C. withdraw D. retreat
59. A. during B. in C.through D. between
60. A. displeasing B. unpleasant C. faulty D. mistaken
61. A. depart B. isolate C. divide D. break
62. A. warn B. tell C. persuade D. assure
63. A. mending B. reference C. separation D. repair
64. A. will B. should C. s
shall D. can
65. A. unless B. if C. when D. because
66. A. inside B. outside C. outstanding D. obvious
67. A. personal B. personnel C. particular D. general
68. A. hiring B. buying C. renewing D.shopping
69. A. realized B. adapted C. known D. informed
70. A. more B. much C. many D. fewer
71. A. achievements B. announcements C. improvement D. entertainment
72. A. only B. right C. correctly D. fast
73. A. but B. or C. other D. then
74. A. intend B. understand C. mean D. program
75. A. part B. place C. step D. action