British English and American English
British people and American people can always understand each other – but there are a few notable differences between British English and American English
英國人和美國人隨時都可以理解對方，但是英式英語和美式英語還是有幾個顯著差異的。

Grammar

語法

Americans use the present perfect tense less than speakers of British English and a British teacher might mark wrong some things that an American teacher would say are correct.美國人比英國人更少使用現(xiàn)在完成時，而一個美國老師說對的句子，英國老師可能判你錯。

US Did you do your homework yet?
Brit. Have you done your homework yet?
US I already ate.
Brit. I’ve already eaten.

In British English, ‘have got’ is often used for the possessive sense of ‘have’ and ‘have got to’ is informally used for ‘have to’. This is much less common in American English.

Brit. I’ve got two sisters.
US I have two sisters.
Brit. I’ve got to go now.
US I have to go now.
There are a number of other minor grammatical differences.

Vocabulary

詞匯

There are a lot of examples of different words being used in British and American English. Here are a few of the commonest.

angry (Brit.) = mad (US)
autumn = fall
boot (of a car) = trunk
chemist’s = drug store
cupboard = closet
flat = apartment
lift = elevator
nappy = diaper
pavement = sidewalk
petrol = gas/gasoline
rubbish = trash
tap = faucet
trousers = pants
There are British words which many Americans will not understand and vice versa. There are also words which exist in both British and American English but have very different meanings.

Spelling

拼寫

There are also a number of different spelling rules between British English and American English.

1. Some words that end in ‘-tre’ in British English end in ‘-ter’ in American English.

US theater, center
Brit. theatre, centre
2. Some words that end in ‘-our’ in British English end in ‘-or’ in American English.

US color, labor
Brit. colour, labour
3. Some words are shorter in American English than in British English.

US catalog, program
Brit. catalogue, programme
There are other minor spelling differences between British and American English.
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