81.【解析】［A］表示笼统的“有用”的动词是help。
82.【解析】［A］ at the expense of的意思是“以……为代价”。
83.【解析】［A］注意后面的介词to，所以这是一个固定搭配。
84.【解析】［B］考查句型“What is the reason that .。.”。
85.【解析】［C］前面所说的明显是一种诱惑，所以要选temptation。
86.【解析】［D］前面说的是上某课的事，所以选class。
Part Ⅵ Translation
87.【答案】did he charge me too much / did he overcharge me
88.【答案】mingled with the crowds
89.【答案】providing new growth opportunities for China’s foreign and domestic trade
90.【答案】as fluently as he speaks English
91.【答案】busy preparing for |
