2. 职称英语
  3. Almost every new innovation goes through three phases. Wheninitially introd

Almost every new innovation goes through three phases. Wheninitially introd

游客2023-09-17  67
问题     Almost every new innovation goes through three phases. When
initially introducing into the market, the process of adoption is slow.        S1.______
The early models are expensive and hard to use, and perhaps even
unsafe. The economic impact is relatively great.                               S2.______
    The second phase is the explosive one, where the innovation
was rapidly adopted by a large number of people. It gets cheaper and           S3.______
easier to use and becomes something familiar. And then in the third
stage, diffusion of the innovation slows down again, as if it permeates        S4.______
out across the economy. During the explosive phase, the whole
new industries spring up to produce the new product or innovation,
but to service it. For example, during the 1920s, there was a dramatic         S5.______
acceleration in auto production, from 1.9 million in 1920 to
4.5 million in 1929. This boom was accompanying by all sorts of                S6.______
other essential activities necessary for auto-based nation: Roads had          S7.______
to be built for the cars to run on refineries and oil wells, to provide
the gasoline; and garages, to repair it.                                       S8.______
    Historically, the same pattern is repeated again and again with
innovations. The construction of the electrical system requested an            S9.______
enormous early investment in generation and distribution capacity.
The introduction of the radio was followed by a buying spree(无节
制的狂热行为) by Americans what quickly brought radios into almost             S10.______
half of all households by 1930, up from nearly none in 1924.
选项
答案 introducing→introduced
解析 When引导的时间状语从句省略了主语every new innovation及was，其中主语与谓语introduce是动宾关系，所以应该为introduced。
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