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问题: 英语选择题

17.His sister insisted that another house _______ for their father .
A.was bought B.should buy C.be bought D.had been bought
为什么选C,不选B。
18.In that country ,there are two glass _______ and one chemical__________.
A.works ,work B.works , works C.factories , work D.work , work
这句子是什么意思,为什么选A
20.The girl on the bus began to sing a pop song and soon all the others ________ .
A. joined B.joined in C.attended D.took part in
为什么选B

解答:

17 insist表示“坚持要求”时,后面引导的宾语从句要用虚拟语气,形式为“should + 动词原形”,should可省略。这里从句主语house和从句谓语动词buy是动宾关系,必须用被动语态,根据上述原则,应当采用的具体形式为:should be bought,省略should后就是选项C。

18 这里work是“工厂”的意思,而且在这个意思下是可数名词。
因此A和C都可以选择,这道题出得不严密。

20 join “加入组织”
join in = take part in “加入活动”
这里显然指的是加入女孩唱歌的活动。
所以选项B和D都是正确的,这道题出得不严密。

PS:这套句子或者这本书看来质量存疑啊。