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to和for的用法

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一、当表达缘由时

to和for都可以使用,但to此时是不定式的用法,后接动词原形,而for则直接后接名词,如:

I went to the supermarket to buy apples.

I went to the supermarket for apples.

二、当表示“给予”时

此时的to和for后面都可以接动作的对象,但用to时往往意味着句子的谓语动作会发生方位变化(事物从一个地方移到另一个地方),for则没有,如:

I made a cake for her.

I gave a cake to her.

三、当表达目的时

此时与第一条类似,to用作不定式后接动词原形,而for则直接后接名词,如:

I asked her to give me the key.

I asked her for the key.

扩展资料:

一、只能用to的情况

1、表动机或原因(motive or reason,后接动词原形)

例:I came here to talk to you.

2、表时刻(Telling the time)

例:Let's meet at ten to nine.

3、表距离(Distance)

例:It's only three kilometers from my house to yours.

二、只能用for的情况

1、表有益或有害的

Drinking water is good for you.

2、表一段时间

I lived in Spain for five years.

3、表计划或安排

I've made an appointment for May 4th.

TO 是有 方向 的意思

例: I will show a map to you

我将向你展示一张地图 (把地图给你看)

如果用FOR: I will show a map for you

为了你 我展示一张地图 (因为你要求 我展示地图给大家看)

FOR 是有 因为 的意思

例: Here is a present for you

这是为了你的礼物

如果用TO: Here is a present to you

这是寄向你的礼物

你好

for常用在三餐、时间段、价格、目的前

例(三餐):what do you usually have for lunch?——Four lunch, I like hamburger

还常带有目的性

时间段:例:I'm going to stay in Beijing for two weeks.

价格:We have great bags for ¥12

目的:I come here for help.

(以上都是我老师讲的,汗~打这么多字累死我嘞)

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