这是一篇说明文,讲述了手机上的细菌。现代生活中手机已经是不可缺少的物品,然而研究表明,手机上细菌的数量是马桶手柄上细菌数量的18倍。
4.The underlined part
“Which?”
in this passage is
.
A. a paper
B. an organization
C. a researcher
D. a magazine
答案 D
解析 细节理解题。依据文章第二段中的“The findings from a sample of 30 phones by Which? magazine suggest 14.7 million of”可知,“Which?”是一本杂志的名字。故选D项。
5.From the passage we know that bacteria found on the phones
.
A. are immediately harmful to the owner
B. are a hidden danger to the owner
C. are dirty but safe
D. are breeding much faster than other bacteria
答案 B
解析 细节理解题。由文章第一段中的“every mobile phone averagely carries 18 times more potentially harmful bacteria”和第二段中的“14.7 million of the 63 million mobile phones in use in the UK today could be potential health risk”可知,手机所携带的细菌对其使用者的健康来说是一种潜在的威胁。故选B项。
6.According to the writer, people should
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