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介词through和by在表示“通过”的意思时,用法上的区别

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1.by

(1)表示方法,手段。即“用。。。,

通过。。。。”相当于by

means

of

如:

All

work

had

to

be

done

by

hand

所有的工作都是手工进行的。

He

makes

a

living

by

teaching

他以教书为生。

(2)表示传达、传递的方式或煤介。如:

How

did

you

send

the

letter,

by

airmail

or

by

ordinary

mail?

你是怎么发送的这信,是通过航天邮件还是普通邮件?

(3)表示用交通工具、通讯工具后接名词单数,不加冠词。如:

He

came

by

train,

but

his

wife

came

by

bus.

他是乘火车来的,可是他老婆是坐公共汽车来的。

2.

through

(1)

表示“以;通过;经由”。如:

He

succeeded

through

hard

work.

(2)

空间上通过,透过,经过

Light

comes

in

through

the

window。光线从窗户进来。

(3)

时间上通过,

自始至终,从头到尾经过

He

often

works

through

the

night

他常常通宵工作。