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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,数 词,基数词表示数目的大小，序数词表示先后顺序。涉及数词的考题不多，但在,2017,年全国卷,的短文改错中却考了两道题。,顾,真,题,回,短文改错,1.(2017,全国,卷,)I still remember how hard first day was.,the,或,my,2.,(2017,全国,卷,)In the summer holiday following,my eighteen birthday,I took driving lessons.,eighteenth,析,考,情,分,考点是序数词前用,the,，十八岁生日是指出生后的第十八个生日，应当改用序数词。由基数词改为序数词这道题之所以成为全省全卷最难题，其原因是练得太少了，凡是考纲内容，我们必须全面系统地复习好。,纳,考,点,归,熟读并牢记以下表格。,基数词,序数词,one,first,two,second,three,third,five,fifth,six,sixth,seven,seventh,eight,eighth,基数词,序数词,nine,ninth,ten,tenth,eleven,eleventh,twelve,twelfth,thirteen,thirteenth,fourteen,fourteenth,fifteen,fifteenth,sixteen,sixteenth,基数词,序数词,seventeen,seventeenth,eighteen,eighteenth,nineteen,nineteenth,twenty,twentieth,twenty-one,twenty-first,twenty-two,twenty-second,twenty-three,twenty-third,thirty,thirtieth,基数词,序数词,forty,fortieth,fifty,fiftieth,sixty,sixtieth,seventy,seventieth,eighty,eightieth,ninety,ninetieth,one hundred,one hundredth,one hundred(and)one,one hundred and first,基数词,序数词,one hundred(and)two,one hundred and second,three hundred,three hundredth,one thousand,thousandth,three thousand,three thousandth,ten thousand,ten thousandth,one million,millionth,one billion,billionth,变化规律：,序数词一般由基数词加,-th,变化,而来，特殊变化如下：,1.one first;two second;three third;five fifth;eight eighth;nine ninth;twelve twelfth,。,2.,以,-ty,结尾的适十的基数词，改,y,为,i,，再加,-eth,。如：,twenty twentieth;thirty thirtieth;forty fortieth;ninety ninetieth,等。,3.,以,one,two,three,nine,结尾的多位数的序数词，只需将结尾的这个词改为序数词即可。如：,thirty-two thirty-second;three hundred and sixty five three hundred and sixty fifth,等。,点,相,关,考,序数词前一般要加,the,。如：,考点,1,He was the eighth to break the record.,他是打破该纪录的第八人。,注：,在比赛中获得名次，如：,first prize/place,，,come first,等表达中，常省略,the,。如：,Mike won first prize in the speech contest.,迈克在演讲比赛中得了一等奖。,He took second place in the long jump.,他在跳远比赛中得了第二名。,序数词前可用,ones,，这时不用,the,。如：,on my sixteenth birthday,在我,16,岁生日那天,The rich man has bought two cars.But he wants to buy a third one this week.,这个有,钱人已有两辆汽车了，他想本周再买一辆。,序数词不表顺序，而是表示原基础上增加，相当于“再一，又一”时用,a/an,不用,the,。如：,考点,2,表示编号。如：,a week or two=one or two weeks,一两周,the Twelfth Lesson=Lesson Twelve,第十二课,考点,3,“,一两天,/,周,/,月,/,年”的表达法。如：,考点,4,“,一个半”的两种说法：,one/an hour and a half=one and a half hours,一个半小时,考点,5,分数表达法。分子用基数词，分母用序数词，当分子大于一时，分母要用复数。如：,1/5,读作,one fifth;3/5,读作,three fifths,；,1/4,可读作,a quarter,。,注意：,表示几分之几或百分之几的人或物时，要加,of,。如：,About three-fifths of the students in our class are boys.,我们班大约五分之三的学生是男生。,an eight-year-old,boy,一个八岁的男孩,a five-minute walk,步行,5,分钟的路程,比较：,a five minutes walk,步行,5,分钟的路程,考点,6,“,数词,+-+,名词”作定语，带连字符的名词用单数。如：,in the 1990s,或,in the 1990s,在,20,世纪,90,年代,注：,前加,the,，后加,s,，但“”可有可无。,考点,7,年代表示法。如：,考点,9,倍数表达法。,(adj/adv,课件）,考点,8,“,几十多岁”表达法。如：,in+ones+,整十的基数词复数,in her thirties,在她三十多岁时,考点,10,序数词或受序数词修饰的名词,后，通常用不定式作定语。如：,Those recently employed will be the first to be dismissed.,那些最近被雇佣的人将会先被解雇。,Shanghai is the first largest city in China.,上海是中国的第一大城市。,考点,11,表示“第几长,/,宽,/,高,/”,与最高级连用。如：,This is the second time I have been let down by that person;I shall never trust him again.,这是那个人第二次使我失望了，我再也不相信他了。,It was the first time he had been out with her alone.,这是他第一次单独和她出去。,考点,12,表达“某人第几次做某事”句型。注意时态。如：,练,模,拟,操,一、单句填空,1.(2018,福建福州,)However,in the urban district of Beijing houses along hutongs still occupy one _(three)of the total area,providing housing for half of the population.,指三分之一，故用序数词。,third,2.(2018,山西孝义,)What they learnt helped them make _ first airplane flight in 1903.,序数词表顺序时，其前要加定冠词,the,。,3.He is the _(five)person to ask me the same question.,指第五个问同一问题的人。,the,fifth,4.I have read the tenth chapter but not the _(twelve).,指第十二章。,5.It was the third time one of his cars _(go)up in flames.,由该句型中的,It was,可知，用过去完成时。,twelfth,had gone,6.Osaka is the _(two)largest,city in Japan.,表示“第二大”要用序数词。,7.Yuri Gagarin became the first man _(fly)in space.,在序数词后或受序数词修饰的名词之后，通常用不定式作定语。,second,to fly,二、单句改错,1.He died within a few days of his ninety birthday.,2.The station is a ten-minutes walk from my house.,ninetieth,ten-minute,3.Three fifth of the students are women.,fifths,4.At the first,he seemed surprised by my questions.,5.I just want to give these kids the second chance.,6.Billy is fourteen years old and in ninth grade.,a,the,Thank you!,
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