小题1:They liked running more than walking．
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小题2:How do you like their performance?
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小题3:You can’t make progress unless you follow my suggestions．
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小题4:Father got up early in order to cook for his son ．
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小题5:The swimming pool is as deep as that one．
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小题1:They preferred running to walking．
小题2:What do you think of their performance?
小题3:If you follow my suggestions，you’ll make progress．
小题4:Father got up early so that he could cook for his son．
小题5:The swimming pool is the same depth as that one．
小题1:本题的含义为他们更喜欢跑步，而不是散步，prefer doing to doing 表示更喜欢……，而不喜欢……，故本题的答案为They preferred running to walking．
小题2:表示对某事物的看法可用what……think of……？故本题的答案为What do you think of their performance?
小题3:本题中的unless表示如果不的含义，可用if引导的条件句的来改写，故本题的答案为If you follow my suggestions，you’ll make progress．
小题4:本题中的in order to表示目的，意思为为了，可用so that引导的从句来改写，故本题的答案为Father got up early so that he could cook for his son．
小题5:as……as表示两者是一样的，可用the same+名词+as的形式来表示，故本题的答案为The swimming pool is the same depth as that one．