A website recently announced that the English language now has over 1 million words.Most Americans have a vocabulary of about 20,000 words.The most famous English speaker in history, William Shakespeare, used 30,000 words in his plays.That's a lot! But where do all these words come from? English likes to borrow words from other languages.For example, "fengshui"， the Chinese term, is now used by English speakers who want to arrange their furniture in harmony.In the age of the Internet, English language is growing more

　　quickly.Some experts believe that as many as 15 words join the English language every day.Now it is possible to share information quickly with people all over the world, and words from all languages are flying through a shared cyberspace.Speaking of cyberspace, it is a whole new vocabulary.The words like "cyber"，"blog"， "World Wide Web"， "WeChat" were rare ten years ago, but now we use them frequently in our daily life.Now it's hard to imagine the English language and the world without them!

　　Section_ⅠWelcome to the unit & Reading - Pre­reading

　　English and its history

　　All through① history, people from many different countries and cultures have lived together in Britain.The English language is made up of② the grammar and vocabulary③ these people brought to Britain.That is why English has so many difficult rules that confuse people④. 　　①all through 一直，从来就

　　②be made up of 由......组成/构成

　　make up 编造；构成；弥补(for)；和解；化妆

　　③vocabulary/və'kæbjələrI/n.词汇

　　these people brought to Britain是定语从句，修饰先行词the grammar and vocabulary，关系代词省略了。

　　④why引导表语从句，其中又包含that引导的定语从句。