as if 用法小结(课堂PPT)
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5
试比较：
He talks as if he is drunk． 从他谈话的样子来看他是醉了 He walks as if he were drunk.
第一句表示“他已经醉了”，第2句则表示“他没有醉”。又如 It looks as if it is going to rain. It looks as if it were going twenku.baidu.com rain.
as if与as though用法
as if 与as though 是一组同义词，两者意思 相同，用法也相同，只是在口语中人们多半 会用as if, 取其简短。as if 和as though 用法 较为复杂，
1
as if和as though的功能
1) 引导方式状语从句
They talked as if they had been friends for years.
He treats me as if /as though I were a stranger
8
三：as if 从句用虚拟语气的情况。
（2）从句表示与过去事实相反， 谓语动词用“had＋过去分词”。如：
He talks about Rome as if he had been there before． 他说起罗马来好像他以前去过罗马似的。
但是，如果状态动词带有持续时间状语，则用过去完成时： They talked as if they had been friends for years. (高二，P95) (试比较：They had been friends for years.) Now it is as though she had known Millie for years.
2
3) 引导感叹句，表示对某种建议、假定、 想象等的反对：
As if I cared! 好像我很在乎似的！（相当于：I don’t care!）
As if anyone would believe that story! 好像人人都会相信那种说法似的！
He warned me against associating with people of doubtful character，As if I ever should! 他告诫我不要同可疑的人来往，好像我真会那样做似的！
6
三：as if 从句用虚拟语气的情况。
在通常情况下， as if 和as though 所 引导的从句的谓语动词多用虚拟语气，表 示说话人认为句子所叙述的情况与事实相 反，是不真实的或极少有可能发生或存在 的情况时。具体用法如下：
7
三：as if 从句用虚拟语气的情况。
（1）如果从句表示与现在事实相反，谓语动词用一 般过去时。（动词be用were,也可用was）如：
It sounds as if it is raining． 听起来像是在下雨。 It looks as if it might snow． 看来好像要下雪了。 You have acted as if you like me. It smells as if it is fresh. 闻起来很新鲜。 She loves the boy as if she were his mother． 她爱这男孩，就好像她是他的母亲一样。 The child talked to us as if he were a grown up． 那孩子跟我们谈起话来，像个成年人似的。
The girl listened as if she had been turned to stone． 那女孩倾听着，一动也不动，像已经变成了石头似的。
9
三：as if 从句用虚拟语气的情况。 注意：谈论过去情形的动词形式有以下几种：
a)过去式，表示过去的状态，如：
He looked at me as if I were mad. 他那样看我，好像我是个疯子。
It seems as if our team is going to win． 看来我们队要胜了。
4
二． 引导方式状语从句
as if意为“ 就好象……” 或 “似乎……似的”。 当说话者认为句子所述的是真实的或极有可能发生 或存在的事实时，从句用陈述语气，句子的谓语为 look, seem, taste, smell, sound， feel等。如：
You look as if you didn’t care． 你看上去好像并不在乎。
He talks as if he knew where she was． 他说话的样子，好像他知道她在哪里似的。
He behaves as if he owned the house. 他的样子好像他拥有这个房子。
第一例意味着快要下雨了，第二例则意味着不会下雨。
再看其她例子： There’s Hob, talking to the ticket-collector. It looks as if he hasn’t got a platform ticket.
那不，霍布正在同检票员说话，看样子还没弄到站台票。 You look as if you’ve been running. 你好像刚跑了一阵似的。 You look as if you know each other. He looks as if he’s tired. It looks/seems as if you’re right.
3
一．引导表语从句
用于下列句型中： It looks/seems as if .... 表 示“看起来似乎……”。
其中It为人称代词，本身并无词义, looks / seems 是连系动词，as if引出表语从句。如：
She looks as if she were ten years younger． 她看起来好像年轻了十岁。
2) 引导表语从句
He looked as if he had just stepped out of my book of fairy tales and had passed me like a spirit. (高二册，第92页) He made that remark as if absently. 他好像是漫不经心地说了那句话。
试比较：
He talks as if he is drunk． 从他谈话的样子来看他是醉了 He walks as if he were drunk.
第一句表示“他已经醉了”，第2句则表示“他没有醉”。又如 It looks as if it is going to rain. It looks as if it were going twenku.baidu.com rain.
as if与as though用法
as if 与as though 是一组同义词，两者意思 相同，用法也相同，只是在口语中人们多半 会用as if, 取其简短。as if 和as though 用法 较为复杂，
1
as if和as though的功能
1) 引导方式状语从句
They talked as if they had been friends for years.
He treats me as if /as though I were a stranger
8
三：as if 从句用虚拟语气的情况。
（2）从句表示与过去事实相反， 谓语动词用“had＋过去分词”。如：
He talks about Rome as if he had been there before． 他说起罗马来好像他以前去过罗马似的。
但是，如果状态动词带有持续时间状语，则用过去完成时： They talked as if they had been friends for years. (高二，P95) (试比较：They had been friends for years.) Now it is as though she had known Millie for years.
2
3) 引导感叹句，表示对某种建议、假定、 想象等的反对：
As if I cared! 好像我很在乎似的！（相当于：I don’t care!）
As if anyone would believe that story! 好像人人都会相信那种说法似的！
He warned me against associating with people of doubtful character，As if I ever should! 他告诫我不要同可疑的人来往，好像我真会那样做似的！
6
三：as if 从句用虚拟语气的情况。
在通常情况下， as if 和as though 所 引导的从句的谓语动词多用虚拟语气，表 示说话人认为句子所叙述的情况与事实相 反，是不真实的或极少有可能发生或存在 的情况时。具体用法如下：
7
三：as if 从句用虚拟语气的情况。
（1）如果从句表示与现在事实相反，谓语动词用一 般过去时。（动词be用were,也可用was）如：
It sounds as if it is raining． 听起来像是在下雨。 It looks as if it might snow． 看来好像要下雪了。 You have acted as if you like me. It smells as if it is fresh. 闻起来很新鲜。 She loves the boy as if she were his mother． 她爱这男孩，就好像她是他的母亲一样。 The child talked to us as if he were a grown up． 那孩子跟我们谈起话来，像个成年人似的。
The girl listened as if she had been turned to stone． 那女孩倾听着，一动也不动，像已经变成了石头似的。
9
三：as if 从句用虚拟语气的情况。 注意：谈论过去情形的动词形式有以下几种：
a)过去式，表示过去的状态，如：
He looked at me as if I were mad. 他那样看我，好像我是个疯子。
It seems as if our team is going to win． 看来我们队要胜了。
4
二． 引导方式状语从句
as if意为“ 就好象……” 或 “似乎……似的”。 当说话者认为句子所述的是真实的或极有可能发生 或存在的事实时，从句用陈述语气，句子的谓语为 look, seem, taste, smell, sound， feel等。如：
You look as if you didn’t care． 你看上去好像并不在乎。
He talks as if he knew where she was． 他说话的样子，好像他知道她在哪里似的。
He behaves as if he owned the house. 他的样子好像他拥有这个房子。
第一例意味着快要下雨了，第二例则意味着不会下雨。
再看其她例子： There’s Hob, talking to the ticket-collector. It looks as if he hasn’t got a platform ticket.
那不，霍布正在同检票员说话，看样子还没弄到站台票。 You look as if you’ve been running. 你好像刚跑了一阵似的。 You look as if you know each other. He looks as if he’s tired. It looks/seems as if you’re right.
3
一．引导表语从句
用于下列句型中： It looks/seems as if .... 表 示“看起来似乎……”。
其中It为人称代词，本身并无词义, looks / seems 是连系动词，as if引出表语从句。如：
She looks as if she were ten years younger． 她看起来好像年轻了十岁。
2) 引导表语从句
He looked as if he had just stepped out of my book of fairy tales and had passed me like a spirit. (高二册，第92页) He made that remark as if absently. 他好像是漫不经心地说了那句话。