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2013年大学英语四级(CET-4)改错练习题(3)

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  英语四级改错练习题
  Word came from California of a new weapon in the war on household pests.Two scientists work for a firm in California developed 1.__________
  a new method to eliminate insects with using dangerous chemicals.The new 2.__________
  weapon—hot air.The basic idea is that insect pests can adjust to temperature much above 3.__________
  normal.In laboratory experiments, termites can't survive much more than a quarter of hour at 100 degrees 4.__________
  Fahrenheit or about fifty degrees centigrade. The new method involves covering a house with a huge tent,and fill it with air heated to 5.__________
  around 65 degrees centigrade.Hot air is forced in with fans and the tent keeps the heat inside the house.Although termites try to escape by 6.__________
  hiding in wood beams,the heat treatment must be continued by four to six hours.But when it's 7.__________
  all over and the insects are dead, there are no toxic residues to danger humans or pets,and no 8.__________
  funny smells.Scientists claim that there's no danger of fire too. 9.__________
  Since very few household materials will burn at 65 degrees centigrade.In fact,wood is prepared for by drying in the ovens at 100 degrees centigrade,that is substantially hotter. 10.__________

  答案
  1.work→working 2.with→without 3.can adjust→can not adjust 4.hour→an hour 5.fill→filling 6.Although→Since 7.by→for 8.danger→endanger 9.too→either 10.that→which

重点单词   查看全部解释    
eliminate [i'limineit]

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v. 除去,剔除; 忽略

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endanger [in'deindʒə]

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vt. 危及,危害

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covering ['kʌvəriŋ]

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n. 覆盖物,遮避物 adj. 掩护的,掩盖的

 
tent [tent]

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n. 帐篷
v. 住帐篷,宿营

 
escape [is'keip]

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v. 逃跑,逃脱,避开
n. 逃跑,逃脱,(逃

 
temperature ['tempritʃə(r)]

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n. 温度,气温,体温,发烧

 
claim [kleim]

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n. 要求,要求权;主张,断言,声称;要求物

 
toxic ['tɔksik]

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adj. 有毒的
n. 有毒物质

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survive [sə'vaiv]

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vt. 比 ... 活得长,幸免于难,艰难度过

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关键字: 练习题 改错 四级

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