to for 的用法区别
在英语中,“for”和“to”这两个词经常被使用,它们在语言中的作用和用法各不相同。以下将介绍这两个词的不同之处。
to for 的用法区别:
1、语法
“for”通常作为介词使用,用于表示用途、目的、时间、原因等。它通常与名词或动词的“-ing”形式连用。
(1)表示用途:Tom bought a present for his mother on her birthday.
(2)表示时间:I have been waiting for an hour.
(3)表示原因:I don't eat meat for ethical reasons.
(4)表示目的:We are studying hard for the exam.
(5)表示比较:He is tall for his age.
“to”可以作为介词、不定式符号、副词等使用,用于表示方向、目的、结果等。它通常与名词、动词、形容词连用。
(1)表示方向:I am walking to the station.
(2)表示目的:I am going to the store to buy some milk.
(3)表示结果:I am too tired to go out tonight.
(4)表示时间:I have to leave for work in 10 minutes.
(5)表示状态:She is close to tears.
2、实际用法
for
(1)用于表示时间段:I have been studying for 2 hours.
(2)用于表示原因:She is crying for joy.
(3)用于表示代替:I will do it for you.
(4)用于表示支持或反对:I am for the idea.
(5)表示数量:I will give you $10 for the book.
to
(1)用于表示位置:The dog ran to the park.
(2)用于表示时间:The party starts at 7p.m. and ends at midnight.
(3)用于表示比较:The cat is similar to the dog.
(4)用于表示目的:John went to the library to study.
(5)用于表示结果:The soup is too salty to eat.
to for 的用法:
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.