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      The typical American throws away about 590 kg. of garbage a year. For the nation as a whole, this 16 160million tons of waste a year, or enough to make a chain of 10-ton garbage trucks halfway to the moon. In the early 1990s,Japan recycled about 50% of its trash; the U.S. only about 10%, 17 estimates of the U.S. Environmental ProtectionAgency. 
      In modern recycling plants, 18 can handle the metals and the glass, but people must separate the plastic by hand,so when people put out the garbage, they must separate the recyclable 19 the non-recyclable materials. Recycling is not a new idea. In emergencies like droughts and wars, people have recycled all kinds of materials andhave been very 20 about how much water and electricity they used. Today we must protect our planet Earth bybringing back the old habit of recycling.

【題組】20
(A) care
(B) careful
(C) cared
(D) carefully

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m8306261 高一下 (2017/03/24)
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20.(B)
In emergencies like droughts and wars, people have recycled all kinds of materials and have been very careful  about how much water and electricity they used. Today we must protect our planet Earth by bringing back the old habit of recycling.
在乾旱和戰争等緊急情况下，人們回收了各種材料，並非常注意水和電的使用量。今天，我們必須恢復回收利用的舊習慣，保護我們的地球。

20.(B)
(A) care
(B) careful
(C) cared
(D) carefully
   (A) 關心；擔心；看護
   (B) 仔細的；小心的adj.
   (C) 關心；擔心；看護
   (D) 小心謹慎地adv.

emergency [ɪˋmɝdʒənsɪ] 緊急情況；突然事件
drought [draʊt] 乾旱；旱災
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      The typical American throws away a..-阿摩線上測驗