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英語四級改錯練習題及答案

時間:2021-01-06 14:30:39 英語四級 我要投稿

英語四級改錯練習題及答案

  Word came from California of a new weapon in the war on household pests.Two scientists work for a firm in California developed 1.__________

英語四級改錯練習題及答案

  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,cockroaches and 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 construction use by drying in the ovens at 100 degrees centigrade,that is substantially hotter. 10.__________

  參考答案

  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

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