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  3. Technology is another great force for change. In part, technology has caused the population explosion; many of us won’t now be a

Technology is another great force for change. In part, technology has caused the population explosion; many of us won’t now be a

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问题     Technology is another great force for change. In part, technology
has caused the population explosion; many of us won’t now be alive if it           S1.______
weren’t for advances in health, agriculture and industry; But in part,
technology helps resolve the population problem, either. It’s a never              S2.______
ending cycle. The need for more food discourages development of better             S3.______
technology which naturally keeps more people alive. And there are no               S4.______
going back to a single, less technologically complex time.
    We’re born: We’re here. We’re hungry. While technology makes this              S5.______
possible for four or even six billion of us to exist, it also eliminates our job
opportunities. In theory, it is possible that all the goods and services the
world needs could produced by only 2 percent of the population. This               S6.______
tendency of technology to make workers superfluous(过剩的) but at same
time allowing their numbers to grow so large is creating psychology tension.       S7.______
Traditionally, work determines our way of life. But if 98 percent of us            S8.______
doesn’t need to work, what are we going to do with ourselves? Something            S9.______
more than work must be found to determine both income and meaning in
life—otherwise 98 percent of us could be both hungry and frustrate.               S10.______
选项
答案won’t→couldn’t/wouldn’t
解析 虚拟语气错误。根据后面的条件句if it weren’t for the advances...判断，此句为虚拟语气，主句时态应为过去将来时wouldn’t或couldn’t。
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