2022年初中英語不定冠詞基本用法

不定冠詞基本用法

1.不定冠詞表“一” ，意思同“one”

He has an English book.

2.用于可數名詞單數前泛指人或物的某一類

My father is a doctor.

3.第一次提到某物或某人用a或an

There is a pen on the table and the pen is mine.

4. 用于序數詞前，表“又一、再一”

He ate one apple, but he wanted a second one.

Please give me a second chance.

5. 用于表頻率、速度、價格等意義的名詞前，“每一”， 相當于every

fifty meters an hour/three times a day/once a second

6.泛指某人或某物

I saw a man under the tree.

7.習慣用語

a little/few/bit(一些、一點兒)

in a word(總之)

in a moment(立刻)

as a result(因此)

half an hour(半小時)

a moment ago(剛才)

once upon a time(從前)

in a loud voice(大聲地)

in a hurry(匆忙地)

with a smile(微笑著)

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