The big fire in Shanghai, believed to ______ due to the burning of construction materials, caused 58 deaths and destroyed all the belongings of the people there.
A.have occurredB.occurC.have been occurringD.be occurring在线课程A
解析:
试题分析:考查固定句型:Sth is believed to do/to have done…据说将要做/已经做了,句意:上海最大的火灾据说是由于焚烧建筑材料造成的,导致58人死亡,毁了那里人们所有的财物。意思应该使用主动态而且是完成时态的不定式。occur是已经发生的动作,用不定式的完成时态;该词的用法只可能用主动语态。因而答案是have occurred!选A。
考点:考查固定句型:
点评:这个句型可以变成:It is believed that…,还要注意用不定式的一般式还是完成,另外 occur是不及物动词,没有被动态,在这里,表示动作已经完成,所以要用完成时。表示发生的几个词,occur,happen,take place,全作不及物用,没有被动态。
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