6.This accident ________ by driving beyond speed limit.
A.is believed to cause
B.is believed to have been caused
C.believed that it was caused
D.is believed to have to caused
解析:句意为:人们认为这场车祸是由于超速行驶导致的。be believed to do“被认为做”,这里由于车祸已发生,故应用不定式的完成式,且accident与cause之间为被动关系,故选B项。
答案:B
7.When he got home,he just placed his film ticket ________.Now he doesn’t know where to find it.
A.at random
B.in vain
C.on occasion
D.by chance
解析:句意为:他到家时,将电影票随意一放,现在他不知哪儿能找到它。at random“随意,任意”;in vain“徒劳,白费”;on occasion(s)“偶尔;偶然;有时”;by chance“偶然”。
答案:A
8.It took me some time to ________ what I had heard.
A.suggest
B.satisfy
C.digest
D.contest
解析:考查动词词义辨析。由语境推知句意为:我花了很长时间才领会了所听到的话的意思。suggest“建议,要求”;satisfy“使满意”;digest“领会”;contest“争取,争辩”。由句意可知C项正确。
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