中考英语专项复习-+基数词与序数词课件

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Exercises
1、Fill in the blanks.
1) 22,374 twenty -two thousand , three and seventy-four. 2) 142,586 one hundred and forty -two , five hundred and eighty-six. 3) 89,724,364,268 eighty-nine ,seven hundred and twenty-four ,there hundred and sixty-four ,tow hundred and sixtyeight.
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4.How large is the population of the USA?
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5.How many number babies do people have to find food for every day ?
About 375840
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基数词
（一）、一至十二的数:
1
2 3 4 5 6 7 8
Teaching goals
• 1.Learn Cardinal Number’s • 2. Learn many number form of numerals
Teaching
Procedures:
• Step1.Gereting and revision. • Step 2.Presentation • 1.Teacher performs some actions to present the new tense. • 2.Students act to learn how to use the tense . • Step 3.Look and match
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基数词
（三）、整十数都是以ty \ ti \结尾 Twenty Thirty forty fifty sixty seventy eighty ninety
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• • • • • • • •
20 30 40 50 60 70 80 90
基数词
(四)、几十几的数：
thirty –two thirty-second =32nd
hundred, thousand, million , billion 这几个词； (1)当前面有基数词时，后面不加 -s 百万、 十万、 ：five thousand students. million oneEg Hundred thousand (2)当前面无基数词时要加-s，且用of连用。 Eg：thousands of students.
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基变序
基变序歌诀：
基变序，很容易， 一、二、三，特殊记。 Th要从四加起， 八去t ，九去e。 F 来把ve替， ty改为tie，然后再加th。 若是遇到几十几, 只变个位就可以。
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五、英语中：百、千、万、十万、百万、千
万、亿、十亿的用法 百 千 警示 Hundred thousand 万、 ten thousand
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1 2 3 4 5 6 7
ቤተ መጻሕፍቲ ባይዱ数词
• • • • • •
13 14 15 16 17 18
• 19
thirteen fourteen Fifteen Sixteen Seventeen Eighteen Nineteen
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序数词
（二）、整十数都是以ty \ ti\ 结尾 Twenty Thirty forty fifty sixty seventy eighty ninety
One Two Three Four Five Six Seven Eight
9 10 11 12
Nine Ten Eleven twelve
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基数词
（二）、十几的数:都是以-teen\ti:n\结尾，
13 14 15 17 16 18
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thirteen fourteen Fifteen Sixteen Seventeen Eighteen Nineteen
例： 32
点拨：几十几的数：先说“几十”再说“几”中间
用连字号“-” 即：“整十数+连字号+个位数”
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序数词
(一)、1-12的数： One Two Three Four Five Six Seven First = 1st Second =2nd Third =3rd Fourth =4th Fifth = 5th Sixth = 6th Seventh = 7th
亿、 Ten million
十亿 billion
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六、读多位数
注
1、百位与十位之间要用and连接（美式可略） 读多位数时，要从右向左，每隔三位数加一个 2、千位 数中 如果百位为零，要在千位后 逗号，右边第一逗号读 thousand,第二个读 加 and。 million, 第三个读billion 3、千位与百位之间不用任何公式符合连接。 中国习惯反过来 Eg： 1015 one thousand and fifteen 2，432，529 89，999，866，266
• • • • • • • •
20 30 40 50 60 70 80 90
Twentieth =20th Thirtieth =30th Fortieth =40th Fiftieth =50th Sixtieth =60th Seventieth =70th Eightieth =80th Ninetieth =90th
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Find the right answer to each question
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1.What’s the population of China？
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2.What’s the number of people the world ?
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3.How many people are there India ?
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Exercises
2、correct the mistakes
1）10,258:one thousand and two hundred and fifty-eight. 2）26,735,247,458:tenty-six thousand seven hundred and thirty-five billion two hundred forty –seven thousand four hundred and fifty-seven. 3)14,756,246,832:fourteen billion seven hundred and fifty-six million two hundred and forty-six thousand eight hundred and thirty-two.
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Finish off the text book p121
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