1.Chairman Mao's works ____ publisheda.has been b.have been2.Not only the whole nation ,but the whole Europe,indeed the whole human society ___ to alter its attitude to racial problemsa.need b.needs3.The project requires more labor than ____ because it is extremely difficult.a.has been put in b.have been put in c.being put in d.to be put in 英语
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【答案】 1,b
这里works是“作品”的意思,是可数名词复数,所以谓语动词应该相应地用复数形式,所以用have been
work表示“工作”时,是不可数名词
2,b
not only ...but （also）...做主语的句子,谓语动词的单复数形式要采取就近原则,即以but （also）后面的成分决定,这里but后是the whole Europe表示集体概念,把整个欧洲看成一个整体了,而后面indeed the whole human society 是补充成分,不影响可以忽略.
而且后面to alter its attitude to racial problems中有一个词its更能看出此句的谓语形式应该是单数.
所以选择needs
3,a
这一题实际上时省略句：
还原一下就明白一点：The project requires more labor than （what） has been put in because it is extremely difficult.
这个what取代的是labor,labor是“人力”的意思,是不可数名词,所以谓语用单数形式.
这句话的意思是：因为工程异常困难,需要投入比先前更多的人力.