for的用法
for的用法的确很多，可用作介词和连词，介词用法尤为丰富。以下详细列出了用法和例句，供学习者参考。
一、prep. 介词
1. （表示目的、用途）为了；供。例如：
He went out for a walk. 他出去散步了。
He does everything only for money. 他干什么都是为了钱。
We did it just for fun. 我们做此事只是为了好玩而已。
For further details, write to this address. 欲知详情，请致函下列地址。
She was too ill to get up for dinner. 她病得无法起床吃饭。
These tickets are for next week. 这些票是下个星期的。
They have tools and garden equipment for hire. 他们有工具和园艺设备出租。
This machine is used for cutting metals. 这台机器是用来切割金属的。
These books are for the children. 这些书是儿童读物。
2. (表示对象) 为，给；对于；关于;至于,对……而言。例如：
What did you get for your birthday? 你收到了什么生日礼物？
I’ve got a present for you. 我有一件礼物要送给你。
We bought some new chairs for the office. 我们给办公室买了一些新椅子。
Watching TV too much is bad for your health. 看电视太多对你的健康有害。
Are you all right for money? (=Do you have enough money?) 你的钱够用吗？
What shall we have for lunch? 我们午餐吃什么？
It may be a little too difficult for a child like him. 对于他这样的孩子来说,这可能有点太难了.
For a beginner, he drives well. 就初学者来说，他开得不错。
3. （表示目标、去向）往；到……。例如：
Is this train for Shanghai? 这是开往上海的火车吗？
My father has left for work. 我爸爸去上班了。
I’m for bed.(=I’m going to bed.) 我打算去睡觉。
4. （表示时间、距离、数量等）达；记。例如：
We have stayed here for two months. 我们已在这儿呆两个月了。
For miles and miles we saw nothing but trees. 走了好长好长的路，除了树什么也看不到。
The diamond was insured for2,000 dollars. 这颗钻石投保了2，000美元。
5. (表示约定的时间) 在……（时间）。例如：
I’ve invited them for 9 o’clock. 我已经邀请他们9点来。
We’ve made an appointment for October 18th. 我们已经约定10月18日见面。
It’s time for supper. 是吃晚饭的时候了。
6. (=in favor of)赞成；支持；同意。例如：
How many people voted for the proposal? 多数人投票赞成这项提议？
Are you for this plan or against it? 你是支持还是反对这个计划?
I’m all for people enjoying themselves. 我完全赞成人们享乐。
7. (=instead of)代替；代表。例如：
I looked after the kids for her. 我替她照看小孩。
Mr Johnson attended the meting for our school. 杰克逊先生代表我校参加了会议。
Let me carry the box for you. 我来替你搬这个箱子吧。
8. （表示解释理由，=because of; by reason of）因为，由于。例如：
We could hardly see for the mist. 由于起雾，我们几乎看不见了。
A certain amount must be deducted for depreciation. 因贬值，必须扣除一些金额。
She was angry with him for being late. 她因他迟到而生气了。
Thank you for helping me with my English. 谢谢你帮我学习英语。
She wanted to change her job for purely personal reasons. 她想换工作纯粹出于个人原因。
9. 适合于。例如：
City life is not for me. 城市生活不适合我。
也用下列短语“be fit for; be suitable for; be appropriate for”表示“适合于”。例如：
I don’t think he is fit for the job. 我认为他不适合这项工作。
Dr Yuan’s kind of rice is the most suitable for China’s farmland. 袁博士发明的水稻品种是
最适合中国土地耕种的。
His casual clothes were not appropriate for such a formal occasion. 他的便服不适宜在这样正式的场合穿。
10. 用于for sb./sth. to do sth.结构，引出动词不定式的逻辑主语。例如：
It is really unusual for Michael to get cross. 迈克尔发脾气确实是不寻常的。
I can’t bear for you to be unhappy. 看到你不高兴我受不了。
There’s nothing worse than for a parent to ill treat a child. 没有什么比父母虐待小孩更恶劣的了。
The plan is for us to leave in the morning. 按照计划我们应在上午离开。
There is an urgent need for someone to tackle this problem. 急需有人来解决这个问题。
There will be another opportunity for them to do it again. 他们还将有一次机会做这件事。
He must have had some bad news for him to be so quiet. 他这么沉默，一定是听到了什么坏消息。
I’ve sent off my coat for it to be cleaned. 我已经把大衣送去洗了。
It’s easy for a computer to keep a record of this information. 要电脑记录下来这种信息很容易。
The dolphin was near enough for me to reach out and touch it. 海豚近得我伸手就可以摸到。
It’s too difficult for me to explain. 这太难了，我无法解释。
但在一些系表结构的句子中，如果形容词是用来形容人的性格、智力、修养等特征的，则用of sb. 作逻辑主语。例如：
It is utterly stupid of her not to follow your advice. 她不听你的劝告，愚蠢之极。
It is wise of him to have married Lucia. 他娶露西亚为妻是明智之举。
send for是什么意思
It was brave enough of her to fight against the scoundrel by herself. 她孤身跟歹徒斗，可真够勇敢的。
It is kind of you to come and see me off. 你来给我送行真是太好了。
Isn’t it unwise of Bob to lie to his father? 鲍勃对他父亲撒谎不是很不明智吗？
How silly it is o…f them to idle away their youth! 他们这样浪费青春，多愚蠢！
11. 用for引出间接宾语。在一个句子中，如果间接宾语置于直接宾语之后，则需在间接宾语前加上for、to等介词。
用for引出间接宾语的动词一般表示“为；替”的含义，常用的有：make, order, find, spare, save, play, sing, paint, fetch, buy, do, cook, get, build, fix, keep, choose, reserve, book, call, cash, catch, change, cut, prepare, reach等。例如：
Will you do a favour for me? (=Will you do me a favour?) 你能帮我一个忙吗？
She ordered a cake for him. (=She ordered him a cake.) 她为他点了一个蛋糕。
I bought a bike from that shop for my son (=I bought my son a bike from that shop.) 我从那家商店给我儿子买了一辆自行车。

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