28、As we all know，American and British people both speak English．But sometimes it does not seem like the same language．In fact，there are some important differences between British English and American English．

First of all，they sound very different．Often，Americans don't say each word separately．They say several words together．Americans may say “I dunno” instead of “I don’t know．” Or they may say “Whaddya say?” instead of “What did you say?” However，the British are more careful in their speech．They usually say all the words and keep them separate．

Words sometimes have different meanings too．Some American words are never used in England．The same thing is true of some British words in America．For example，the vocabulary for cars and driving is very different．Americans drive trucks，but in England people drive lorries．

Many expressions are also different in the two countries．In England，if you are going to telephone your friends，you “phone them up”．In America，you “give them a call”．

There're also some differences in grammar．For example，Americans usually use the helping verb（助動(dòng)詞）“do” when they ask a question．They say “Do you have a storybook?” But the British often leave out the helping verb．They say “Have you a storybook?”

All these differences can be confusing（易混淆的）if you are learning English．But most languages are like this，Languages change over time．When people live in separate places，the languages change in different ways．This is what has happened to English．

1．When a person says，“I'm driving a truck now．” Where does the man most probably come from?

A．America．           B．Britain．              C．France．

2．What does the underlined word “separately” mean in this passage?

A．含糊地                B．快快地                C．分開地

3．How many differences has the writer told US between American English and British English?

A．Three．               B．Four．                C．Five．

4．Which sentence is Not right?

A．Many expressions are different between American English and British English．

B．British English and American English sound very different．

C．British English is the same as American English in grammar．

5．This passage is mainly（主要）about ________．

A．some important differences between British English and American English

B．the difference of the grammar between British English and American English

C．the difference of the sound between British English and American English