2. 职称英语
  3. What is paper made from? When we 【C1】_________ books or newspapers, we seldo

What is paper made from? When we 【C1】_________ books or newspapers, we seldo

游客2025-06-23  20
问题     What is paper made from? When we 【C1】_________ books or newspapers, we seldom stop and think about the things 【C2】_______ to make them. 【C3】 ______ paper our lives would be very different.
    Paper is one of 【C4】______ important inventions( 发明) of all time. The people in Egypt(埃及) first used a kind of grass-like plant to 【C5】 _______ paper around five 【C6】 ________ years ago. 3000 years later, a Chinese man created a new 【C7】 ______ of paper using pieces of old cloth. Then for several hundred years, people 【C8】 _________ the world had been using this Chinese method to make paper. In 1838, a Canadian man invented a 【C9】 _______ method of paper-making using wood. Today, most of the paper we use is made from 【C10】 ______. [br] 【C2】
选项 A、be used       
B、used       
C、using
答案 B
解析 考查过去分词做定语。过去分词used表示被动，做定语，修饰前面的名词things。
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