题目内容
8.It is believed that Loulan was gradually covered over by sandstorms from AD 200to AD 400.Loulan isbelievedto have been gradually covered over by sandstorms from AD 200to AD 400.
分析 人们认为楼兰是在公元200-400年期间被风沙渐渐掩埋的.
解答 答案:believed to have been
考查句型转换.第一个句子使用it is believed that据认为…可以换成Loulan is believed to have been covered by…但要注意须要用to have done表示事情已经发生过了.
点评 解答此类问题,要了解相关的近义词或同义词,同一个意思用不同的英语句型表达,然后结合题意及上下文写出正确答案
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