2016年12月英语四级真题及答案

2017-10-25 09:50:34来源:网络

  PARTⅢ Reading Comprehension (40 minutes)

  Section A

  26. E)challenges

  27. J)Searched

  28. D)categorizing

  29. K)similarities

  30. L)slightly

  31 G)percentage

  32 O)traditional

  33. I)regardless

  34. H)proving

  35. M)suggests

  Section B

  36-40 IDJFB 41-45 HCKGE

  36. It is possible for burglars to make jamming attacks with the necessary equipment and skill.

  I

  37. Interfering with a wireless security system is similar to interfering with a conversation.

  D

  38. A burglar has to continuously jam the wireless security device to avoid triggering the alarm, both inside and outside the house.

  J

  39. SimpliSafe provides devices that are able to distinguish incidental radio interference from targeted jamming attacks.

  F

  40. Only a very small proportion of burglaries are committed by technical means.

  B

  41. It is difficult to crack SimpliSafe as its system keeps changing.

  H

  42. Wireless devices will transmit signals so as to activate the alarm once something wrong is detected.

  C

  43. Different measures should be taken to protect one’s home from burglary in addition to the wireless security system.

  K

  44. SimpliSafe’s device can send a warning to the house owner’s cellphone.

  G

  45. Burglars can easily get a security device’s frequency by Internet search.

  E

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