第23题: [单项选择]Most environmental problems exist because adequate measures for preventing them ______ taken in the past. A. was not B. were not C. were not being D. being not 参考答案:B 答案解析:[试题分析] 此题考查被动语态主谓一致性。 [详细解答] 被动语态的时态、数、性的一致,主要由助动词来表示,要注意它们与主语的一致。此处从句的主语measures是复数,因此选择答案B。
第25题: [单项选择]Why isn’t the man going to the cinema A. Because he doesn’t know where the cinema is. B. Because he is going to see the doctor. C. Because he doesn’t like seeing films. 参考答案:B 答案解析:[听力原文] F: Aren’t you going to the film this afternoon M: I’d love to, but I have to go to see