题目内容
19.An e-mail,as well as telephones,_______an important part in daily communication.( )| A. | have played | B. | is playing | C. | are playing | D. | play |
分析 电子邮件和电话一样,在日常交流中正起着重要的作用.
解答 答案:B.
根据语境"电子邮件和电话一样,在日常交流中正起着重要的作用."判断设空处的动作"起着重要的作用"在持续进行着,所以用现在进行时.现在进行时的构成是:主语+am/is/are+动词的现在分词;另外,当主语后面跟有as well as引导的词组时,其谓语动词的单复数按主语的单复数而定.该句主语的中心词E-mail是第三人称单数,所以谓语动词也应用第三人称单数.故答案为B.
点评 可用来表示现在进行时的时间状语,常用的有:now,this week,at the moment,等;或者告诉你一个准确的现在时间,或者用look,listen(常用于句子的开头,表示提醒听者注意正在发生的事情).
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