题目内容
17.To our delight,up till now,the European Union,Japan,and Russia ________ their targets for CO2emissions (排放).( )A. | give | B. | have given | C. | give | D. | gave |
分析 让我们高兴的是,直到现在,欧盟、日本和俄罗斯已经制定了二氧化碳排放的目标.
解答 答案为B.根据时间状语up till now相当于so far,表示谓语动词从过去一直到现在陆续发生,所以用现在完成时.故选B.
点评 考查现在完成时.
delight 用作名词时,根据情况可以可数也可以不可数,其区别是:表示具体意义的"乐事",为可数名词,表示抽象意义 的"快乐",为不可数名词.
比较:Raising flowers is agreat delight.(养花是件很快乐的事).
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