If we had found him earlier we could have saved his life. 要是我们当时早点找到他的话，我们就可以救活他。(可惜我们找到他太晚了)
三、与将来事实相反
若与将来事实相反，条件从句的谓语用过去式(be通常用were)，主句谓语用“should (would, could, might)+动词原形”：
If he went，would you go too? 如果他去，你也去吗?(大概他不会去)
If I asked him，I’m sure he’d help us. 如果我向他提出要求，肯定他会帮助我们。(不过我不打算这样做)
注：几点特别说明
① 主句谓语中的should主要用于第一人称后。would, might, could的大致区别是：would表示结果，might表示可能性，could表示能力、允许或可能性。比较：
If you tried again you would succeed. 要是你再试一试，你就会成功的。(would表结果)
If you tried again you might succeed. 要是你再试一试，你可能会成功的。(might表可能)
If you tried again you could succeed. 要是你再试一试，你就能成功了。(could表能力)
② 条件从句的谓语动词为be时，不管其主语为单数还是复数通常都用were，但在口语或非正式文体中的单数第一人称和第三人称后，也可用was，不过在 If I were you这样的表达中，通常还是以用were为宜。
③ 有时条件从句用would表示愿意：
If he would live on with me, I would be his better half. 要是他还愿意跟我过，我仍会做他的妻子。
④ 对于与将来事实相反的情形，请注意以下几点：一是这里说的与将来事实相反，实为对将来情况的推测;二是此用法中的条件从句谓语除用过去式外，有时也用“should+动词原形”(表示可能性极小，常译为“万一”)或“were to+动词原形”(表示与将来事实相反的假设);三是当条件从句使用“should+动词原形”这样的谓语时，主句谓语除可用“should (would, could, might)+动词原形”这样的虚拟语气外，也可用陈述语气或祈使语气：
If it should rain tomorrow, don’t expect me. 万一明天下雨，就不要等我了。 I should see him, I’ll tell him. 万一我见到他，我就告诉他。
与未来事实相反的虚拟语气怎么用
与未来事实相反的虚拟语气怎么用?请看下面的题目： If we __________ 200 years old，we __________ everything. A. were to be，could change B. had been，changed C. were，would have changed D. should be，changed
此题应选A。该题考查与将来事实相反的虚拟语气，此时的主句谓语通常用would(should，could，might)+动词原形，而从句谓语可能有以下几种情况：
1. 从句谓语用过去式：
If your father knew this，he would be angry. 要是你父亲知道了，他会生气的。 If it rained tomorrow，the sports meet would beput off. 要是明天下雨，运动会就推迟。
2. 从句谓语用should+动词原形(通常指可能性极小的事情，一般译为“万一”)：
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If it should rain，the crops would be saved. 要是有雨，这庄稼还有救。 此类句型的主句谓语有时可以用祈使句甚至将来时态：
If it should rain tomorrow，don’t expect me. 万一明天下雨，就不要等我了。 If I should be free tomorrow，I will come. 万一我明天有空，我就来。
3. 从句谓语用were to+动词原形 (通常指可能性极小可或近乎不可能，有时指出乎意料)：
If the sun were to rise in the west，my love for you would not change. 即使太阳从西边出，我对你的爱也不会变。
if only开头的虚拟语气怎么用?
if only开头的虚拟语气怎么用?if only 与 I wish一样，也用于表示与事实相反的愿望，其后所虚拟语气的时态与 wish 后所接时态的情况相同：
If only she had had more courage! 她再勇敢一些就好了。 If only it would stop raining! 雨要是停了就好了。
If only he didn’t drive so fast. 但愿他车没开得那么快。
If only I were [was] better looking. 要是我长得漂亮些就好了。
If only I had listened to my parents! 我要是当时听了父母的话就好了。 If only she would go with me! 她要是愿意和我一道去就好了! 【友情提示】if only 通常独立使用，没有主句。
高中英语语法专项复习之副词It's time引导的从句用虚语气具体怎么用 It's time引导的从句用虚拟语气具体怎么用? 一、基本用法
从句谓语通常用过去式表示现在或将来，有时也用过去进行时或“should+动词原形”(较少见，且should不能省略)，其意为“(早)该干某事了”：
It’s time we ordered dinner. 现在该叫菜了。
I think it’s time you went to bed. 我想你该睡觉了。 It’s time we went [were going, should go]. 我们该走了。 It’s time you washed those trousers. 你该洗洗那条裤子了。
I’m getting tired. It’s time we went home. 我累了，我们该回家了。
I think it’s time they were taught a lesson. 我想现在该给他们一点教训了。 It’s time someone spoke up for the less privileged in our society. 应该有人为我们社会中较不幸的人说说话了。
It’s time you looked ahead and made plans for your retirement. 是你为以后想一想并对退休后的生活做出安排的时候了。
二、同义表达
该是孩子们上床的时间了。 It’s time the kids were in bed.
=It’s time for the kids to be in bed. 三、两点说明
(1) time前有时有about和high修饰： It’s high time we left. 我们早该动身了。
It’s high time you bought a new car. 你该买辆新车了。
I think it’s high time that she made up her mind. 我想她该拿定主意了。
It’s high time they began to take you seriously. 现在他们应该开始认真对待你了。
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(2) 与其他的虚拟结构不同，该结构不能在该用 was 时而用 were： It’s time I was in bed. 我该上床睡了。(不用were)
高中英语语法专项复习之副词及其基本用法
本文将对高中英语语法专项复习之副词及其基本用法进行详细介绍，希望对大家的英语学习有所帮助，副词主要用来修饰动词，形容词，副词或其他结构。
一、副词的位置： 1) 在动词之前。
2) 在be动词、助动词之后。
3) 多个助动词时，副词一般放在第一个助动词后。 注意：
a. 大多数方式副词位于句尾，但宾语过长，副词可以提前，以使句子平衡。 We could see very clearly a strange light ahead of us.
b. 方式副词well，badly糟、坏，hard等只放在句尾。 He speaks English well. 二、副词的排列顺序：
1) 时间，地点副词，小单位的在前，大单位在后。
2) 方式副词，短的在前，长的在后，并用and或but等连词连接。 Please write slowly and carefully.
3) 多个不同副词排列：程度+地点+方式+时间副词。 注意：副词very 可以修饰形容词，但不能修饰动词。 改错：(错)I very like English. (对)I like English very much.
注意：副词enough要放在形容词的后面，形容词enough放在名词前后都可。 I don't know him well enough.
There is enough food for everyone to eat. There is food enough for everyone to eat. 兼有两种形式的副词 1) close与closely
close意思是\近\意思是\仔细地\He is sitting close to me. Watch him closely. 2)late 与lately
late意思是\晚\意思是\最近\You have come too late.
What have you been doing lately? 3)deep与deeply
deep意思是\深\，表示空间深度;deeply时常表示感情上的深度，\深深地\He pushed the stick deep into the mud. Even father was deeply moved by the film. 4)high与highly
high表示空间高度;highly表示程度，相当于much The plane was flying high. I think highly of your opinion. 5)wide与widely
wide表示空间宽度;widely意思是\广泛地\，\在许多地方\
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He opened the door wide. English is widely used in the world. 6)free与freely free的意思是\免费\的意思是\无限制地\You can eat free in my restaurant whenever you like. You may speak freely; say what you like. 形容词与副词的比较级 大多数形容词(性质形容词)和副词有比较级和最高级的变化，即原级、比较级和最高级，用来表示事物的等级差别。原级即形容词的原形，比较级和最高级有规则变化和不规则 变化两种。 1) 规则变化 单音节词和少数双音节词，加词尾-er，-est来构成比较级和最高级。 构成法 原级 比较级 最高级 taller tallest tall(高的) 一般单音节词未尾加-er,-est greater greatest great(巨大的) nicer nicest nice(好的) 以不发音的e结尾的单音词和少数以- le结尾的双音larger largest large(大的) 节词只加-r,-st ablest able（有能力的） abler bigger biggest 以一个辅音字母结尾的闭音节单音节词，双写结尾的big(大的) 辅音字母，再加-er，-est hotter hottest hot (热的) easier easiest \以辅音字母+y\结尾的双音节词，改y为i，再加-er，easy(容易的) st busier busiest busy(忙的) cleverer cleverest clever(聪明的) 少数以-er，-ow结尾的双音节词未尾加-er，-est narrower narrowest narrow(窄的) most important(重要的) more 其他双音节词和多音节词，在前面加more，most来easily(容易地) mportant mportant 构成比较级和最高级。 more easily most easily 2) 不规则变化 原级 比较级 最高级 best good(好的)well(健康 better worst bad (坏的)ill(有病的) worse older/elder oldest/eldest old (老的) more most much/many(多的) less least little(少的) farther/further farthest/furthest far (远的) as+形容词或副词原级+as 1)在否定句或疑问句中可用so… as。 He cannot run so/as fast as you. 2)当as… as 中间有名词时采用以下格式。 as +形容词+ a +单数名词 as + many/much +名词
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This is as good an example as the other is. I can carry as much paper as you can..
3)用表示倍数的词或其他程度副词做修饰语时，放在as的前面。 This room is twice as big as that one. Your room is the same size as mine.
4) 倍数+ as + adj. + as<=> 倍数+ then + of This bridge is three times as long as that one. This bridge is three times the length of that one. Your room is twice as large as mine. Your room is twice the size of mine. 比较级形容词或副词+than You are taller than I.
They lights in your room are as bright as those in mine. 注意：
1)要避免重复使用比较级。
(错) He is more cleverer than his brother. (对) He is more clever than his brother. (对) He is clever than his brother. 2)要避免将主语含在比较对象中。
(错) China is larger that any country in Asia.
(对) China is larger than any other countries in Asia. 3)要注意对应句型，遵循前后一致的原则。
The population of Shanghai is larger than that of Beijing. It is easier to make a plan than to carry it out.
4)要注意冠词的使用，后有名词的时候，前面才有可能有名词。 比较：Which is large, Canada or Australia?
Which is the larger country, Canada or Australia? She is taller than her two sisters. She is the taller of the two sisters. 可修饰比较级的词
1)a bit, a little, rather, much, far, by far, many, a lot, lots, a great deal, any, still, even等
2)还可以用表示倍数的词或度量名词作修饰语。
3)以上词(除by far)外，必须置于比较级形容词或副词的前面。 典型例题:
1) ---- Are you feeling ____? ---- Yes，I'm fine now.
A. any well B. any better C. quite good D. quite better 答案：B. any 可修饰比较级，quite修饰原级，well的比较级为better. 2) The experiment was____ easier than we had expected.
A.more B.much more C.much D.more much
答案：C.much可修饰比较级，因此B，C都说得通，但easier本身已是比较级，不需more，因此C为正确答案。
3) If there were no examinations, we should have ___ at school. A. the happiest time B. a more happier time C. much happiest time D. a much happier time 答案：D。
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高中英语语法总结
