English review
as as参考链接
as as 的用法
直接加形容词或者副词
He’s as old as she [her]. 他年纪跟她一样大。
You love him as much as I (=as I love him). 你爱他像我爱他一样。
Your room is as large as mine.如果涉及数量或程度可用：as much+ (不可数名词+) as / as many+ (可数名词复数+) as。如：
You must speak English as much as possible. 你必须尽可能地多说英语。
You’ve made as many mistakes as I have. 你犯的错误和我犯的一样多。nearly, almost, just, exactly, half, quite, twice, three times等，请注意这些修饰语都只能放在as…as 结构之前
This rope is twice as long as that one. 这根绳子比那根长一倍。
- 否定句可以将第一个as改成so
He doesn’t study as [so] hard as his brother. 他学习不如他弟弟努力。- as…as结构在一定的上下文中可以用其省略结构(即省去其中的一个 as)。如：
She’s clever, but her brother is just as clever. 她很聪明，但她兄弟也一样聪明。
The woman married a man poor as herself. 这个女人嫁给了一个与她一样穷的男人。
定语从句：充当形容词
She didn’t tell me the reason why she refused the offer
There comes a time when you have to make a choice.
This is the village where he was born.
Anyone who spits in public will be punished here.（anyone who可以用“Whoever”代替）
名词性从句：充当名词
主语从句
Who will be the president is still unknown.
It doesn’t matter whether you leave or stay.宾语从句
I want to know what he said.
I would appreciate it if you could take my son.表语从句
China is what she used to be no longer.
One reason is that we are in traffic jam.同位语从句
The fact that he is the murder is clear.
I make a promise that I will try my best next year.
状语从句：充当副词
时间状语从句
While John was watching TV, his wife was cooking.
Every time I listen to your advice, I get into trouble.地点状语从句
Where they went, there they were warmly welcomed.
You should have put the book where you found it.比较状语从句
Your house is three times as big as ours.
The more you exercise, the healthier you will be.
Food is to men what oil is to machine.原因状语从句
My friends dislike me because I’m handsome and successful.
Now that everybody has come, let’s begin our conference.条件状语从句
We’ll start our project if the president agrees.
Provided that there is no opposition, we shall hold the meeting here.目的状语从句
The boss asked the secretary to hurry up with the letters so that he could sign them.
The teacher raised his voice on purpose so that the students in the back could hear more clearly.让步状语从句
The old man always enjoys swimming even though the weather is rough.
No matter how hard he tried, she could not change her mind.方式状语从句
She behaved as if she were the boss.
Sometimes we teach our children the way our parents have taught us.结果状语从句
He got up so early that he caught the first bus.
It’s such a good chance that we must not miss it.
参考链接
动词不定式
主语+谓语+宾语（动词不定式做宾语）
I like to keep everything tidy. 我喜欢每件东西都保持整洁。
主语+谓语+宾语+宾补（动词不定式做宾补）
Father will not allow us to play on the street.
主语+系动词+表语（动词不定式做表语）
My work is to clean the room every day.
主语+谓语+宾语（动词不定式做定语）
I have a lot of work to do.
动词不定式的否定
She pretended not to see me when I passed by. 我走过的时候，她假装没看见
动词不定式(省略to)
- 情态动词 I can do.
- 感官动词 I saw him dance.
- 使役动词 I let her go.
Paul doesn't have to be made to learn. He always works hard.
make后接不带to 的动词不定式，当其用于被动时，to 不可省略。
so as to 的特殊句型
Tom kept quiet about the accident so as not to lose his job.
why not 特殊句型 后街动词原形
Why not take a holiday?
so kind as to 劳烦，劳驾的意思
Would you be so kind as to tell me the time?
动词不定式的时态
I'm sorry to have given you so much trouble.
分词
分词包括现在分词（ing形式）与过去分词（ed形式）
具有形容词功能，同时又表现各种动词性特点。
分词做定语（前置与后置）
We can see the rising sun. 我们可以看到东升的旭日
He is a retired worker. 他是位退休的工人
There was a girl sitting there. 有个女孩坐在那里
This is the question given. 这是所给的问题
动名词与现在分词的区别：动名词相当于名词，所以在句子中可以充当的成分与名词类似，即主要充当主语、宾语、表语等成分。而现在分词的作用类似于副词和形容词，在句子主要充当状语、定语、补语、表语等。
动名词
Singing and reading are my favorite hobbies.
About 9.2 million students were awarded a total of 25 billion yuan worth of scholarships in 2018, which took up 21.8 percent of all the subsidies.
虚拟语气
现在
条件句中的谓语用过去式，主句的谓语为 would/might/could + 动词原形。（注意当条件句的谓语动词为be 时，要用 were, 包括主语是第一人称的时候。 但如果主语为第三人称单数， 谓语动词可以用was。）
If he studied at this school, he would know you well. 如果他在这所学校学习的话，他会对你很熟悉。
If I were you, I would go. 假如我是你，我会去的。
If I had any money with me, I could lend you some. 如果我带钱了，我就会借给你些。
If it were not raining, we should go for a picnic. 如果现在不下雨的话，我们就出去野餐了。
If he was here, he might be able to help you. 如果他在这里，他就能够帮助你了。将来
条件句中有时可以用 were to + 不定式 或 should + 不定式。
If it were to snow tomorrow, many crops would die of cold. 如果明天下雪，许多庄稼都会冻死。
If she were to be there next Monday, I would tell her about the matter. 如果她下周一来这儿的话，我就会告诉她这件事的始末。
If he should go to Qing Hua University, he would make full use of his time. 如果他要上清华大学的话，他就会充分利用他的时间了。
If Tom should come here tomorrow, I would talk to him. 如果汤姆明天来这儿的话，我就跟他谈谈。
条件句中有时可以用 If it were not for 句式。意思为 “若不是”。
- If it were not for his help, we would be working now. 要不是有他的帮助，我们还会在工作呢。
- If it weren't for the Internet, everything would be very difficult. 要不是互联网，一切都会变得很难。
- Were it not for the expense, I would go to Britain. 要不是费用的问题，我会去英国。
if 有时可以省略，改用倒装语序。
Were you in my position, you would do the same. 假如你处在我的位置，你也会那样做的。
Were I ten years younger, I would study abroad. 要是我能年轻十岁的话，我会去国外学习。
Should they attack us, we would wipe them out completely. 假如他们攻击我们，我们就把他们彻底消灭干净。
Should he agree to go there, we would send him there. 要是他答应去的话，我们就派他去。
过去
条件句中的谓语用过去完成时， 主句的谓语为 would/might/could/should + have + 过去分词。
She would have gone to the party if she had been invited. 要是当初她被要求的话，她就会去参加这次聚会了。
If it had not been for your help, I wouldn't have finished work so easily. 要不是你的帮忙，我的工作不会这么容易完成。
Had you not helped me, I should have failed. 假如没有你的帮助，我就失败了。
Had she learned about computers, we would have hired her to work here. 如果她懂一些电脑知识的话，我们已经聘请她来这里工作了。错综时间条件句
If I had spoken to him yesterday, I should know what to do now. 假如昨天我对他说了，现在我就知道该怎么办了。
If it had not been for the doctor's care, the girl should not be speaking to you now .要不是由于大夫的精心照料，这个女孩现在就
If he hadn't been working hard in the past few years, things wouldn't be going so smoothly. 如果不是他这些年来一直努力工作，事情就不会发展得这么顺利了。
时态
- 过去时
I worked at this company three years ago.
I was working at this company at this time last night.
I had worked at this company by the end of last year.
I had been working at this company before I found the second job. - 现在时
I work at this company.
I am working at this company.
I have worked at this company for three years.
I have been working at this company since I graduated from university. - 将来时
I will work at this company about three months later.
I will be working at this company when you graduate from university.
I will have worked at this company for ten years when I retire.
I will have been working at this company for three years when I am in the 30s. - 过去将来时
I would work at this company, he said When he was a child.
I would be working at this company when you come to see me, he told me last day.
I would have worked at this company by then, he said.
I would have been working at this company for ten years by the end of last month, he told me.
参考链接
英文邮件常见结尾
You can reach me on my cellphone at 123-456-789
Thank you very much, and I look forward to hearing from you.