2. 外语
  3. All over the world men are【B1】new techniques to provide mass housing, inexpensively and quickly, for millions of low-and middle-

All over the world men are【B1】new techniques to provide mass housing, inexpensively and quickly, for millions of low-and middle-

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问题     All over the world men are【B1】new techniques to provide mass housing, inexpensively and quickly, for millions of low-and middle-income families, and【B2】the urgent housing【B3】brought on by such natural disasters【B4】floods and earthquakes.
    A firm in Hatfield, Pennsylvania, the Universal Papertech Corporation, believes it has found one solution【B5】the problem: houses【B6】paper. The ultimate success of the paper houses will【B7】a great deal on breaking【B8】traditional patterns and concepts of home building and restrictive codes. One thing seems certain,【B9】: the shelter revolution is already【B10】.
    The concept of paper houses was developed【B11】10 years ago by Universal. Six years ago the company supplied【B12】the then—current models【B13】emergency housing for thousands of migratory farm workers in California.【B14】the houses were new on the market, no one really knew just how long the unusual structures would【B15】. Today, in California【B16】still holding up well under the elements and【B17】are accommodating more people than at first. The manufacture now【B18】that the houses will have a useful life of at least 15 to 20 years.【B19】in the paper houses has spread beyond the U.S.【B20】a number of foreign countries.
选项 A、searching
B、searching for
C、searching in
D、searching into
答案B
解析 全世界的人都在寻找新的技术为上百万的中低档收入的家庭尽快地提供价格便宜的大房子。此处已有系动词are在空格前，而四个选项都用的是searching，只是其后的介词各不相同，而 search后接介词for，故此题应选D。
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