As we all know, smoking ___________ people’s health.A．is harmful toB．do harm foC
题型：不详难度：来源：
As we all know, smoking ___________ people’s health.| A．is harmful to | B．do harm fo | C．does harmful to | D．harm |
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答案
| A |
解析
试题分析：考查词组和主谓一致：对…有害：be harmful to或do harm to或用harm sth，所以先排除C项，当主语是动名词的时候，谓语是单数，选A。
点评：词组的考查主要是看意思相同的短语，主谓一致的考点较多，要在理解的基础上加以记忆，多练习加以巩固。这里的考查动名词做主语，还有不定式做主语，谓语都是单数，关键是记忆。 |
举一反三
E-mail, as well as telephones, ______ an important part in daily communication.| A．is playing | B．have played | C．are playing | D．play |
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______ is to be awarded the highest award at this evening’s meeting. | A．Both the director and the writer | B．Both of the director and the writer | | C．The director and the writer | D．The director and writer |
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| Right now the writer and manager_____busy preparing for the following meeting. |
| Either you or one of your students _________ to attend the meeting that is due tomorrow. |
--- I hear a number of workers in the factory ______ out of work.
--- Yes, and the number _______ quite huge.| A．are; is | B．is; are | C．is; is | D．are; are |
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