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Unit 7
数词
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什么是数词？
• 表示数目多少或顺序多少的词叫数词， 数词分为基数词和序数词。表示数目 多少的数词叫基数词；表示顺序的数 词叫序数词。
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基数词
one two
five
three
eight four
seven six
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zero one nine eight
seven six
two three four
five
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zero one two
nine
three
numbers
eight
four
seven six five
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Numbers are widely used.
Hello ， 86861873 ---
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Let’s sing a song ！
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作业
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• 二.把基数词改为序数词。
• 1.one
2.two
• 3.three
4.five
• 5.nine
6.eight
• 7.twelve
8.fourteen
• 9.twenty
10.twenty-one
• 11.forty-four
12.ninety-six
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Number song!
• 1-10 • one two three four five • six seven eight nine ten
11-19 eleven twelve thirteen forteen fifteen sixteen seventeen eighteen nineteen
4. What’s the date today? It is ________. A. Friday B. time to go C. cloudy D. June 4th
B. 5. What is five and eight? C. A. Twelve B. Thirteen C. Fourteen D. Fifteen
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1.first 2.second 3.third 4.fifth 5.ninth 6.eighth 7.twelfth 8.fourteenth 9.twentieth 10.twenty-first 11.fourty-fourth 12.ninth-sixth
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三、 用括号内所给数词的正确形式填空。 1. We are in Class________（3）. 2. We have________（12）months of the year. December is
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Let’s review
ten sixty
thirty
forty
seventy
One hundred
eighty
fifty
ninety
twenty
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序数词
•one ---first three---third five---fifth seven---seventh
nine---ninth
2. Monday is the second day, and________. A. Tuesday is the fourth B. Thursday is fifth C. the second day is
Tuesday D. the second day is Thursday
3. There are ________months in a year. December is the ________month of the year. A. twelve; twelve B. twelve; twelfth C. twelfth; twelve D. twelve; twelveth
the _____________（12）month.
3.There are __________(7)of a week. 4. My birthday is Dec.________（21）. 5. I have________（3）books.. 四、 选择题。
1. My grandmother is_____ old. A. seventieth B. seventy year C. seventy years D. seventies
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second
first
third
tenth
fourth
ninth eighth
fifth
sixth seventh
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second
first
third
tenth ninth
ordinal numbers
eighth
seventh
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fourth fifth sixth
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❖ ordinal numbers(序数词 )
一、二、三，特殊记，
加th从4起， 八少“t”，九去“e”， “ve”要用“f”替，(five, twelve) 见“y”变成“i”和“e”，词尾加上 “th”， (twenty,thirty,---ninety) 若是遇到几十几，只变个位就可
以。
two---second four---fourth six---sixth eight---eighth •ten----tenth
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twenty---twentieth forty---fortieth sixty---sixtieth eighty---eightieth
thirty---thirtieth fifty---fiftieth seventy---seventieth ninety---ninetieth