Learning aims： 1. To recognize the kinds of the subjective .
2. To grasp the usages of the other forms of the subjective .
3. To finish some exercises about forms of the subjective .
Important points：Knowing how to use the subjective of the other forms
Difficult points： How to recognize in which conditions to use the subjective .
Learning guide： Read, remember and apply
复习回顾：
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时间
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If条件句（谓语动词形式）
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主句（谓语动词形式）
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省略if
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1. 复习含有条件句的虚拟语气的几种形式：
