英语语法 虚拟语气专题训练及答案
The Subjunctive Mood:
虚拟语气表示说话人的主观愿望、猜测、建议或与事实不符的假设等,也可以表示可能性较小的情况或不可能发生的情况,而不是客观存在的事实(表示客观事实要用陈述语气)。虚拟语气是由句中谓语动词的特殊形式表现出来的。虚拟语气常用于复合句中,也可用于简单句。
一、虚拟语气的用法
I. Present Unreal:
l If I (you, he / she, we, they) + 动词过去式 (were, did, had, etc.), should / would / could / might + 动词原形
e.g. If I had HIV, I would know because I would fell sick.
If I were you, I would give an AIDS patient a hug.
II. Past Unreal:
l If I (you, he / she, we, they) + had + 过去分词, should / would / could / might + have + 过去分词
e.g. If she had told him about the danger, he would not have got hurt.
If I had known more about giving first aid, I could have helped them.
III. Future impossible:
1. If I (you, he / she, we, they) + 动词过去式 (were, did, had, etc.), should / would / could / might + 动词原形
e.g. If the teacher asked me to solve the problem next time, I could try my best.
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