2017届高考英语（重庆专用）二轮精练：选修7 unit3 Under the sea单元测试_高考复习指南

　　A．watchedB．observed

　　C．witnessedD．realized

　　答案　C　[考查动词词义辨析。句意：因特网的迅速发展以及对社会和人们带来的影响在最近几年得到见证。watch观看，注视；observe观察，注意到；realize意识到，实现；witness证明，见证。]

　　4．They urged that the library ________open during the vacation.

　　A．must be keptB．is kept

　　C．would be keptD．be kept

　　答案　D　[句意：他们要求图书馆假期也开放。urge从句中的谓语动词用(should＋)动词原形，被动语态的形式是be＋过去分词，故选D。]

　　5．We________there when it ________to rain.

　　A．would get; began

　　B．were getting; would begin

　　C．were about to get；began

　　D．had got；had begun

　　答案　C　[be about to do sth when ...正要做某事这时……。]

　　6．A family of five is really a heavy burden,

　　so we all have to work hard to________.

　　A．find outB．work out

　　C．help outD．carry out

　　答案　C　[help out帮助(某人)摆脱困境或危难。find out查明白，搞清楚；work out计算出，解决；carry out实施，执行。]

　　7. Many people are not________the danger of their children's bad habits, which lead to failing to make their dreams come true.

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