as if 用法小结(课堂PPT)
asif虚拟语气用法常见用法归纳总结
asif虚拟语⽓⽤法常见⽤法归纳总结以as if (as though)引导的⽅式状语从句或表语从句，有时⽤虚拟语⽓，若表⽰与现在事实相反，谓语动词⽤⼀般过去时；若表⽰与过去事实相反，⽤过去完成时；表⽰将来的可能性不⼤，⽤would (might, could)+动词原形，如：He acts as if he knew me.他显得认识我似的。
as if虚拟语⽓⽤法(1)从句所表⽰的内容若为事实或可能为事实，也可⽤陈述语⽓：It looks as if we’ll be late.我们似乎要迟到了。
This meat tastes as if it has already gone bad.这⾁吃起来似乎已经坏了。
在现代英语中，有时即使从句内容不是事实，也可能⽤陈述语⽓：I feel as if [as though] I’m floating on air.他感到好像漂浮在空中。
The stuffed dog barked as if it is [were, was] a real one.玩具狗叫起来像真狗。
(2)注意It isn’t as if…的翻译：It isn’t as if he were poor.他不像穷的样⼦(或他⼜不穷)。
It isn’t as if you were going away for good.⼜不是你离开不回来了。
什么是虚拟语⽓在表⽰假想的虚假的、与事实相反的或难以实现的情况时⽤虚拟语⽓，表⽰主观愿望或某种强烈情感时，也⽤虚拟语⽓。
即当⼀个⼈说话时欲强调其所说的话是基于⾃⼰的主观想法，愿望，假想，猜测，怀疑或建议，⽽不是根据客观实际，就⽤虚拟语⽓。
主要是英语语法的⼀种表达。
《as用法小结》课件
He looked at me as if I had lost my mind. She's a pianist, as well as a composer. You can stay as long as you promise not to cause any trouble. As far as I know, he hasn't made a decision yet. As soon as I finish this project, I'll take a vacation.
I'll do it as carefully as I can.
表示逆转
Use the door as a last resort, if the window isn't an option.
as作为副词的用法
1
表示视觉联想
2
The room was painted yellow, and
the chairs were as bright as the sun.
实例演练
练习一：用as填空
She ran __ fast __ she could to catch up with the bus.
练习二：翻译句子
As we climbed higher, the air grew colder and thinner.
练习三：选择最佳答案
____ I'm concerned, the project is a success.
3
表示同等程度
She's not as tall as her sister.
as-if-用法归纳
as if 用法归纳1． as if 从句的作用as if一般可由as though来代替。
引导表语从句，可在look, seem等系动词后。
如：He looked as if / though he was ill. 他看起来好像生病了。
It seems as if it is going to rain.看来好像要下雨了。
引导方式状语从句。
如：I remember the whole thing as if / though it happened yesterday.The child talked to us as if he were a grown-up. 那个小孩跟我们讲话就像个大人一样。
2． as if 从句的语气及时态①as if从句用述语气。
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，It sounds as if it is raining. 听起来像在下雨。
He talks as if he is drunk. 从他说话的样子来看他是醉了。
②as if从句用虚拟语气。
当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时，表示与现在事实相反，谓语动词用一般过去式。
如：You look as if you didn’t care. 你看上去好像并不在乎。
When a pencil is partly in a glass of water, it looks as if it were broken．表示与过去或与谈话时间为止发生的事实相反，谓语动词用“had +过去分词”。
如：He talked about the Great Wall as if he had been there before.说起长城来好像他以前去过那里。
The girl listened as if she had been turned to stone.女孩听着，一动也不动，像已经变成了石头。
as if虚拟语气用法总结
as if虚拟语气用法总结虚拟语气是英语中一种常见的语法现象，用于表示与事实相反或假设的情况。
其中，as if虚拟语气是一种常用的表达方式。
在本文中，我将总结as if虚拟语气的用法及相关注意事项。
首先，as if虚拟语气常用于表示与现实相反的情况。
它可以用来描述假设、愿望、建议或命令等。
在使用as if虚拟语气时，我们常使用动词的过去式形式，与"as if"或"as though"连用，构成"as if/though + 过去式"的句式结构。
例如：1. She looks as if she were a movie star.（她看起来好像是个电影明星。
）2. He speaks as if he knew everything.（他说话好像他什么都知道。
）3. It's as if the sun disappeared.（好像太阳消失了。
）在以上例句中，as if虚拟语气用于表示与现实相反的情况。
实际上，她并不是一位电影明星，他并不是什么都知道，太阳也并没有消失。
这些句子中的as if虚拟语气让我们感受到一种与事实相反的情况。
此外，as if虚拟语气也可以用于表示推测或假设的情况。
在这种情况下，as if 虚拟语气常用于描述对过去的猜测或对现在的推测。
例如：1. It looks as if it had rained earlier.（看起来好像之前下过雨。
）2. He talks about the movie as if he had watched it.（他说起那部电影好像他看过。
）3. She acts as if she were the boss.（她的行为好像她是老板。
）这些句子中的as if虚拟语气用于描述对过去或现在的推测。
虽然我们无法确定是否确实下过雨、他是否真的看过那部电影或她是否真的是老板，但使用as if虚拟语气可以让我们对这些情况进行猜测或推测。
asif 用法归纳
as if 用法归纳1．as if 从句的作用?as if一般可由as though来代替。
可在look, seem等系动词后引导表语从句。
如：He looked as if / though he was ill. 他看起来好像生病了。
It seems as if it is going to rain.看来好像要下雨了。
它还可引导方式状语从句。
如：I remember the whole thing as if / though it happened yesterday.我记得整个事情，就好像它是发生在昨天一样。
The child talked to us as if he were a grown?鄄up.那个小孩跟我们讲话就像个大人一样。
2．as if 从句的语气及时态①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，as if从句用陈述语气。
如：It sounds as if it is raining.听起来像在下雨。
He talks as if he is drunk.从他说话的样子来看他是醉了。
②当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时，as if从句用虚拟语气。
表示与现在事实相反，谓语动词用一般过去式。
如：You look as if you didn’t care.你看上去好像并不在乎。
He talked as if he knew what had happened.?他说话的样子，好像他知道发生了什么事情。
表示与过去或与谈话时间为止发生的事实相反，谓语动词用“had +过去分词”。
如：He talked about the Great Wall as if he had been there before.他说起长城来好像他以前去过那里。
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。
as-if-用法归纳
as if 用法归纳1．as if 从句的作用 as if一般可由as though来代替。
引导表语从句，可在look, seem等系动词后。
如：He looked as if / though he was ill. 他看起来好像生病了。
It seems as if it is going to rain.看来好像要下雨了。
引导方式状语从句。
如：I remember the whole thing as if / though it happened yesterday. The child talked to us as if he were a grown-up. 那个小孩跟我们讲话就像个大人一样。
2．as if 从句的语气及时态①as if从句用陈述语气。
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，It sounds as if it is raining. 听起来像在下雨。
He talks as if he is drunk. 从他说话的样子来看他是醉了。
②as if从句用虚拟语气。
当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时，表示与现在事实相反，谓语动词用一般过去式。
如：You look as if you didn’t care. 你看上去好像并不在乎。
When a pencil is partly in a glass of water, it looks as if it were broken．表示与过去或与谈话时间为止发生的事实相反，谓语动词用“had +过去分词”。
如：He talked about the Great Wall as if he had been there before.说起长城来好像他以前去过那里。
The girl listened as if she had been turned to stone.女孩听着，一动也不动，像已经变成了石头。
as-if-用法归纳
as if 用法归纳1．as if 从句的作用as if一般可由as though来代替。
可在look，seem等系动词后引导表语从句。
如：He looked as if / though he was ill。
他看起来好像生病了。
It seems as if it is going to rain。
看来好像要下雨了。
它还可引导方式状语从句。
如:I remember the whole thing as if / though it happened yesterday。
我记得整个事情，就好像它是发生在昨天一样。
The child talked to us as if he were a grown?鄄up.那个小孩跟我们讲话就像个大人一样。
2．as if 从句的语气及时态①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, as if从句用陈述语气。
如：It sounds as if it is raining.听起来像在下雨。
He talks as if he is drunk.从他说话的样子来看他是醉了。
②当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时, as if从句用虚拟语气。
表示与现在事实相反,谓语动词用一般过去式.如:You look as if you didn't care.你看上去好像并不在乎.He talked as if he knew what had happened。
他说话的样子，好像他知道发生了什么事情。
表示与过去或与谈话时间为止发生的事实相反,谓语动词用“had +过去分词”.如：He talked about the Great Wall as if he had been there before。
他说起长城来好像他以前去过那里。
The girl listened as if she had been turned to stone。
最新高考总复习英语(人教版)常考句式课件： as if(though)从句 公开课一等奖课件
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孙老师说，杨蕙心学习效率很高，认真执行老师 的复习要求，往往一个小时能完成别人两三个小 时的作业量，而且计划性强，善于自我调节。此 外，学校还有一群与她实力相当的同学，他们经 常在一起切磋、交流，形成一种良性的竞争氛围 。 谈起自己的高考心得，杨蕙心说出了“听话 ”两个字。她认为在高三冲刺阶段一定要跟随老 师的脚步。“老师介绍的都是多年积累的学习方 法，肯定是最有益的。”高三紧张的学习中，她 常做的事情就是告诫自己要坚持，不能因为一次 考试成绩就否定自己。高三的几次模拟考试中， 她的成绩一直稳定在年级前5名左右。
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You understand not only what the rule says but what it means, as if yourself __it. A. make B. made C. have made D. had made
句意:你不但理解规则所说的内容，而且理解它的 含义，好像是你亲自制定的。由句意可知，规则已 经制定出来，表示与过去事实相反的假设。所以， as if引导的状语从句用“had+过去分词”。答案:D
第16页
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高考总分:711分 毕业学校:北京八中 语文139分 数学140分 英语141分 理综291分 报考高校：
北京大学光华管理学院
北京市理科状元杨蕙心
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班主任 孙烨：杨蕙心是一个目标高远 的学生，而且具有很好的学习品质。学 习效率高是杨蕙心的一大特点，一般同 学两三个小时才能完成的作业，她一个 小时就能完成。杨蕙心分析问题的能力 很强，这一点在平常的考试中可以体现 。每当杨蕙心在某科考试中出现了问题 ，她能很快找到问题的原因，并马上拿 出解决办法。
as if用法.ppt
1． 在look, seem 等系动词后引导表语从句。如： She looks as if she were ten years younger． 她看起来好像年轻了十岁。 2． 引导方式状语从句。 She loves the boy as if she were his mother．
shocked (人）惊讶的，震惊的， Shocking (物）令人震惊的。 I was shocked at/by th eshocking news.
trap N.陷阱 vt, 困住某人。 She was trapped in the ruins.
not all/every/…+名词=all…名词+not; some b ut not all 部分否定，（不全是） Not all the teachers teach successfully.(写出 同义句) ________ the teachers _______ teach sucessfull y. 2)All of them are not right.= Not all of them a re right.( 写出全部否定句) _________________________________________ __________
as if +陈述语气的情况。所述的是真实的或极有 可能发生或存在的事实。
It sounds as if it is raining 听起来像是在下雨。
He talks as if he is drunk．
as if 从句用虚拟语气的情况。 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 w as 。
【正式版】as的用法总结课件PPT资料
Your ③用于"as/so +adj. bag is twice as e子Texxh比ppisee我inrsims的jiuvese贵ntta一aasss倍mimthi。npaeot（.r你tais的n）t 袋a. n 2Y注aaYa一+使aa①TsYY+一(aY1(s单先ooooooossssssh)、aauuuuu意些用用些i引wswwwwww//s数行rrrrro引aaeeeeedee1带 时 于 带obppbp导nnlllll)词lli：导lllllnaeeaellc+++aaaa有要t有t非ggaannn是ahiBssss其限ssnnaoiiswwwess.a注as限..n整pss否制rrrCCCCstta"iii结结wwoa意制结....tttr个eeemsy定性iiscc构构sss第性构ieiee主sb式定aaa.的的一lnssaas定中e句ss为从osss常常个mmm从tee)句nxxaooo见见a句oppsooos/。tees为短短ttt，nnahhhossslll副语语/yyiiyu有vvsseeaaao词归归e正sssaaf+ummmss(纳纳a如意lmmdiiiannn：：j像为s.iieeenny...aa一ee“oss..那uuu样sst么huu，iaa”nll“修k如aa. 饰ss此ffoo整”llll)oo个，ww主第ss如如句二下下或个,,主aaasss为句wwee连的llll 词一//aass（部ww引分eellll导，aass的可//比在aass较句lloonn状首gg语、aass从句句中常、常句用末省。略）。
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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 to rain.
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.
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。
He treats me as if /as though I were a stranger
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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。
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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：
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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：
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。
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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。
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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。
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，
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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.
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.
It seems as if our team is going to win． 看来我们队要胜了。
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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：
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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！