强化训练27 主谓一致
（时间：15分钟 分数：27分）
Ⅰ.单项选择(每题1分，共20分)
1．(2012·广元一诊)About 30 percent to 40 percent of nonemergency surgery in these countries ________ delayed because less than 2 percent of the people ________ blood.
A．is；donates B．are；donates
C．are；donate D．is；donate
答案 D [考查主谓一致。句意：这些国家大约有百分之三十到百分之四十的非紧急外科手术都推迟了，因为只有不到百分之二的人献血。“分数/百分数＋of＋名词“构成的名词词组作主语时，其谓语动词的单复数取决于名词的形式，surgery是不可数名词，而people是集合名词，故选D项。]
2．(2012·成都外国语学校月考)—Did you go to the show last night?
—Yeah.Every boy and every girl in the area ________ invited.
A．were B．have been
