《中考复习-数词》PPT课件.ppt
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1、Numbers,初三英语专项复习(数词),基数词,1.基数词表示数目的词称为基数词。其形式如下:,A从110 one,two,three,four,five,six,seven,eight,nine,tenB从 1119 eleven,twelve,thirteen,fourteen,fifteen,sixteen,seventeen,eighteen,nineteen 这里除 eleven,twelve,thirteen,fifteen,eighteen为特殊形式外,fourteen,sixteen,seventeen,nineteen都是由其个位数形式后添加后缀-teen构成。,C从 21
2、99 整数几十中除twenty,thirty,forty,fifty,eighty为特殊形式外,sixty,seventy,ninety都是其个位数形式后添加后缀-ty构成。表示几十几时,在几十和个位基数词形式之间添加连字符“-”21 twenty-one76 seventy-six,D百位数 个数基数词形式加“hundred”,表示几百,在几十几与百位间加上and 101 a hundred and one 320 three hundred and twenty 648 six hundred and forty-eightE千位数以上 从数字的右端向左端数起,每三位数加一个逗号“,”。从
3、右开始,第一个“,”前的数字后添加 thousand,第二个“,”前面的数字后添加 million,第三个“,”前的数字后添加 billion。然后一节一节分别表示,两个逗号之间最大的数为百位数形式。,2,648 two thousand six hundred and forty-eight16,250,064 sixteen million two hundred and fifty thousand sixty-four5,237,166,234 five billion,two hundred and thirty-seven million,one hundred and sixty
4、-six thousand,two hundred and thirty-four,热门考点:,Be in ones+整十的复数形式My parents are in their forties.Mr.Green is in her fifties.表示数量的名词的使用:前有,后没有;前没有,后要有。Several hundred students five thousand people thousands of years ago millions of stars,热门考点:,3.合成词:合成形容词是用连词号把两个或者两个以上的词连成一个形容词。()只能做定语;()合成形容词的名词一律用
5、单数。a five-star hotel,a seven-year-old boy,an eight-year-old girl,a two-day trip In fact,the leaning Tower of Piza is a 54.5-metre-tall bell tower.,Learn how to say the following numbers,(1)100 one hundred(2)1,000 one thousand(3)200 two hundred(4)1,000,000 one million(5)210 two hundred and ten,(6)4,1
6、89 four thousand one hundred and eighty-nine(7)15,362 fifteen thousand three hundred and sixty-two Pay attention:hundred,thousand and million have no“-s”after a number,“1909”,(1)If it is a date We say like this 1909 nineteen oh nine(2)If it is a telephone number We say like this 1909 one nine zero n
7、ine“o”in English we can say“oh”or“zero”,Practise the following numbers in three ways:,A.as an amountB.as part of phone numberC.as a date 1814 2035 1666 1016 1902 1988,序数词,1.序数词一般由基数词后加th构成,前面一般加定冠词the。the eighteenth,the two hundredth2.以y结尾的基数词构成序数词时,先把y改成i,再加eth。The fiftieth,the twentieth3.不规则的序数词有以
8、下几个 First,second,third,fifth,eighth,ninth,twelfth4.编号有两种表示法1)名词基数词 Lesson Three,Part One2)定冠词序数词名词 The third lesson,the first part,序数词 表示顺序的词称为序数词。序数词的主要形式:,A从第一至第十九 其中,one first,two second,three third,five fifth,eighteighth,nineninth,twelve twelfth为特殊形式,其它的序数词都是由其相对应的基数词后面添加“th”构成。例如:six sixth、nine
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