GRAMMAR 语法
Do not use too after ‘a’ before an adjective and noun. Put too and the adjective before ‘a’. 当too与形容词修饰名词的结构连用时，不要把a放在too之前，而要把too和形容词放在a之前
Do not use too much before an adjective. Just use too . 形容词之前不用too much，只用too
It is too high a price to pay.
价格高得买不起。
The houses would be too expensive (NOT 不用 too much expensive) for local people.
这些房子对于当地人来说太贵了。
2
also 也，亦，还
There were people from all over Europe, and America too.
有来自欧洲各地的人，也有来自美国的人。
Can I come too?
我也来行吗？
‘I’m feeling hungry.’ ‘Me too.’
“我觉得饿了。”“我也是。”
It’s a more efficient system and it’s cheaper too.
这个系统更有效，也更便宜。
GRAMMAR 语法
Too is usually used at the end of a clause. too一般用于句子末尾
In formal writing, too can be put after the subject, or after an adverb or prepositional phrase at the beginning of a clause. 在正式书面语中，too可放在主语之后，也可放在句子开头的副词或介词短语之后
He was a teacher too.
他也是老师。
We too must play our part.
我们也必须尽自己的责任。
Here, too, matters are not so simple.
这里也是，事情并不那么简单。
3
[+adj/adv] used with a negative to mean ‘not very’ spoken 〔与否定词连用，表示“不很”、“不是非常”〕 【口】
She doesn’t seem too upset about it.
她对此好像不是很难过。
‘What was the weather like?’ ‘Oh, not too bad.’
“天气如何？” “不是太糟。”
She was none too pleased (= not at all pleased ) when I told her.
我告诉她时，她一点也不高兴。
4
all too/only too
used to emphasize that a particular situation exists when you wish it did not exist 很，极，非常
Beggars are becoming an all too familiar sight in our cities.
在我们的城市里，乞丐已经是见多不怪了。
I regret to say that these rumours are only too true.
我遗憾地说，这些传言完全属实。
5
used to emphasize a remark that you are adding 〔用于强调补充的话语〕
‘He’s been banned from driving.’ ‘A good thing too!’
“他被禁止驾驶了。”“这也是好事！”
‘A woman farmer?’ asked Gabriel. ‘Yes, and a rich one too.’
“一个女农场主？”加布里埃尔问道。“对，还是一个有钱的女农场主。”
6
I am/he is/you are etc too!
used to emphasize that you disagree with what someone has said about someone or something especially AmE informal 我/他/你等其实[一定]…！〔用于断然表示不同意〕 【尤美，非正式】
‘You’re not smart enough to use a computer.’ ‘I am too!’
“你不够机灵，不会用电脑。”“我其实会！”
7
be too much for sb
used to say that something is so difficult, tiring, upsetting etc that someone cannot do it or bear it 非某人能力所及；非某人所能忍受
Working full-time was too much for her.
全天上班她吃不消。
The shock was too much for him.
这个打击对他来说太大了。
8
[+adj/adv] very spoken formal 很，非常 【口，正式】
Thank you. You are too kind.
谢谢，你真好。
9
be only too glad/pleased to do sth
to be very willing to do something 非常乐意做某事
I’d be only too pleased to assist you.
我很乐意帮助你。
10
too little, too late
used to complain that not enough is being done to solve a problem and that the action did not start early enough 太少也太晚〔用于抱怨解决某问题时做得不够，采取的行动不够及时〕
Doctors have criticized the government’s response to the crisis as too little, too late.
医生批评政府对这次危机反应过于冷淡和迟缓。