题目内容
5．The doctor examined the patient first and then decided tooperate at once．（operation）分析 医生首先给病人做了检查，然后决定立刻动手术．
解答 答案：operate 根据所给词operation，可知所给词是名词"手术"的意思．根据decided to，可知其后需要跟动词的原形．（decide to do）．operation的动词形式为operate，故答案为operate
点评 本题考查动词．首先判断所给词的词性和含义，其次根据在句中的位置和所做成分，判断应该用何种形式．
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