Part III Cloze(10% 15minutes)

　　Directions: There are 20 blanks in the following passages. For each blank there are four choices marked A, B, C and D. You should choose the one that best fits into the passages. Then mark the corresponding letter on the Answer Sheet.

　　A. Passage 1

　　In the month of September, in Britain, you may see large number of birds perched (栖息) on roofs and telegraph wires. These birds are swallows. They are 61 together because, very soon, they will be flying south to much warmer lands, where they will find 62 the small flying insects oil which they feed off These are no. such insects 63 in Britain during the winter; it is too cold for them.

　　The swallows settle, fly off, swoop and 64 again. This they do many times, for they are making short practice flights in order to be fit for the long journey 65 them.

　　A flock of these migrating birds leave Britain in the autumn. They fly steadily for hundreds of miles 66 they reach the warm lands of Africa. But not all the birds get there, for many of them perish in the stormy weather they meet with 67 .

　　In the spring of the following year they 68 the long and tiring journey back to Bitain. They return to the identical barn or tree in the identical district which they had left the previous autumn. How do these birds find their 69 there and back over such vast distance? Nobody knows exactly 70 ，but it has something to do with winds and air currents.

　　6l. A. gathering B. assembling C. waiting D. be perched

　　62. A. great number of B. a great deal of C. plenty of D. numerous

　　63. A near B. about C. nearby D. over

　　64. A fly off B. swoop C. settle D. turn back

　　65. A. in advance B. ahead of C. in front of D. in front

　　66. A. until B. before C. when D. as

　　67. A. in the way B. on the way C. half the way D. all the way

　　68. A. have B. fly C. find D. make

　　69. A. way B. path C. course D. route

　　70. A. why B. when C. how D. what

　　Passage 2

　　Mr. Brown is 102 years old. He is leading a full and active life Why has he 71 so long? Many 72 would like to know the answer to the question. They are studying groups of old people all over the world and try to find why some very old people remain healthy 73 and spirit while 74 become weak and ill in their 60s. They have observed, first of all, that doing 75 work is a way of life for all these long-lived people. They began their long days of physical labor 76 children and never seem to

　　Stop. Second, all these people come from 77 . The air has 78 oxygen (氧气) and is pollution-free, 79 makes the hearts stronger. Third, these people eat little animal meat. They like to have fresh vegetables, nuts (坚果)，grains，and 80 . They never eat more food than their bodies need.

　　71. A. been B. worked C. stayed D. lived

　　72. A. scientists B. people C. men D. women

　　73. A. in mind B. of mind C. in body D. of body

　　74. A. the Others B. some others C. those people D. no people

　　75. A. hard B. light C. easy D. difficult

　　76. A. from B. 1ike C. as D. when

　　77. A. big cities B. small towns

　　C. seaside and grassland D. mountain areas

　　78. A. little B. much C. less D. more

　　79. A. which B. that C. this D. it

　　80. A. beef B. pork C. mutton D. milk