基數(shù)詞和序數(shù)詞
    1) 基數(shù)詞
    one - two -three –four- five –six- seven -eight -nine-ten
    twenty - thirty- forty- fifty - sixty- seventy-eighty -ninety
    hundred - thousand - million - billion
    hundreds of thousands of millions of
    1,214,000,000 讀作one billion, twohundred and fourteen million
    教材例句：
    1. The great advances made in transport during the last two hundred years were accompanied by a big increase in trade.
    2. In all known languages we can see complexities that must have been tens of thousands of years in developing.
    3. Statistics predicts that over 21 million new jobs will be created and 93 percent of them will be in service industries.
    4. And it is impossible to tell whether the huge blasts lasted for thousands or millions of years.
    2) 序數(shù)詞
    first- second –third- fourth- fifth- sixth –seventh-eighth- ninth –tenth
    the first song
    the third biggest company
    教材例句：
    1. We all have first impression of someone we just met.
    2. Learning a second language extends one's vision and expands the mind.
    3. And then in the third round, Harrelson hit Banderas so hard in the face that he actually- broke his nose.