【学习目标】
Let the students master some key words and expressions.
【重点难点】
case; accuse; demand; ahead of; approve; appointment
【学习内容】
1.case n 情况；病例；案例
He thought he had already solved the problem, but that was not the case.他以为已经解决了问题，但情况并非如此。
The patient is a case of flu. 这位病人是流感的病例。
It may rain；you’d better take an umbrella in case.
可能会下雨；你最好带把伞，以防万一。
【归纳拓展】
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in case 连词 以防万一；免得
in case of 万一；
in no case 绝不（放于句首，句子部分倒装）
in this/ that case 即使这样/那样
in any case 无论如何
case 在句中作先行词时，常用关系副词 where
常见句型 AS is often the case 正如常有的情况
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