A．three times as wider as

　　B．three times the width of

　　C．three times the width

　　D．as three times as

　　答案：B　考查倍数表达法。A项wider应改为wide；C项width后应加of。

　　15．Sometimes he found________very hard to fall asleep at night, so he went to see the doctor.

　　A．him

　　B．this

　　C．that

　　D．it

　　答案：D　句意：他发现晚上有时候很难入睡，于是他就去看医生了。it作形式宾语，真正的宾语是to fall asleep at night。其他选项都不能作形式宾语。

　　Ⅳ.阅读理解

　　A

　　(2011·江西)

　　Why should mankind explore space? Why should money, time and effort be spent exploring and researching something with so few apparent benefits? Why should resources be spent on space rather than on conditions and people on Earth? These are questions that, understandably, are very often asked.

　　Perhaps the best answer lies in our genetic makeup(基因构成) as human beings. What drove our ancestors to move from the trees into the plains, and on into all possible areas and environments? The wider the spread of a species, the better its chance of survival. Perhaps the best reason for exploring space is this genetic tendency to expand wherever possible.

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