單擊此處編輯母版標(biāo)題樣式,單擊此處編輯母版文本樣式,第二級(jí),第三級(jí),第四級(jí),第五級(jí),*,數(shù) 詞,1,基數(shù)詞表示數(shù)目的大小，序數(shù)詞表示先后順序。涉及數(shù)詞的考題不多，但在,2017,年全國卷,的短文改錯(cuò)中卻考了兩道題。,2,顧,真,題,回,短文改錯(cuò),1.(2017,全國,卷,)I still remember how hard first day was.,the,或,my,2.,(2017,全國,卷,)In the summer holiday following,my eighteen birthday,I took driving lessons.,eighteenth,3,析,考,情,分,考點(diǎn)是序數(shù)詞前用,the,，十八歲生日是指出生后的第十八個(gè)生日，應(yīng)當(dāng)改用序數(shù)詞。由基數(shù)詞改為序數(shù)詞這道題之所以成為全省全卷最難題，其原因是練得太少了，凡是考綱內(nèi)容，我們必須全面系統(tǒng)地復(fù)習(xí)好。,4,納,考,點(diǎn),歸,熟讀并牢記以下表格。,基數(shù)詞,序數(shù)詞,one,first,two,second,three,third,five,fifth,six,sixth,seven,seventh,eight,eighth,5,基數(shù)詞,序數(shù)詞,nine,ninth,ten,tenth,eleven,eleventh,twelve,twelfth,thirteen,thirteenth,fourteen,fourteenth,fifteen,fifteenth,sixteen,sixteenth,6,基數(shù)詞,序數(shù)詞,seventeen,seventeenth,eighteen,eighteenth,nineteen,nineteenth,twenty,twentieth,twenty-one,twenty-first,twenty-two,twenty-second,twenty-three,twenty-third,thirty,thirtieth,7,基數(shù)詞,序數(shù)詞,forty,fortieth,fifty,fiftieth,sixty,sixtieth,seventy,seventieth,eighty,eightieth,ninety,ninetieth,one hundred,one hundredth,one hundred(and)one,one hundred and first,8,基數(shù)詞,序數(shù)詞,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,9,變化規(guī)律：,序數(shù)詞一般由基數(shù)詞加,-th,變化,而來，特殊變化如下：,1.one first;two second;three third;five fifth;eight eighth;nine ninth;twelve twelfth,。,2.,以,-ty,結(jié)尾的適十的基數(shù)詞，改,y,為,i,，再加,-eth,。如：,twenty twentieth;thirty thirtieth;forty fortieth;ninety ninetieth,等。,10,3.,以,one,two,three,nine,結(jié)尾的多位數(shù)的序數(shù)詞，只需將結(jié)尾的這個(gè)詞改為序數(shù)詞即可。如：,thirty-two thirty-second;three hundred and sixty five three hundred and sixty fifth,等。,11,點(diǎn),相,關(guān),考,序數(shù)詞前一般要加,the,。如：,考點(diǎn),1,He was the eighth to break the record.,他是打破該紀(jì)錄的第八人。,12,注：,在比賽中獲得名次，如：,first prize/place,，,come first,等表達(dá)中，常省略,the,。如：,Mike won first prize in the speech contest.,邁克在演講比賽中得了一等獎(jiǎng)。,He took second place in the long jump.,他在跳遠(yuǎn)比賽中得了第二名。,13,序數(shù)詞前可用,ones,，這時(shí)不用,the,。如：,on my sixteenth birthday,在我,16,歲生日那天,14,The rich man has bought two cars.But he wants to buy a third one this week.,這個(gè)有,錢人已有兩輛汽車了，他想本周再買一輛。,序數(shù)詞不表順序，而是表示原基礎(chǔ)上增加，相當(dāng)于“再一，又一”時(shí)用,a/an,不用,the,。如：,15,考點(diǎn),2,表示編號(hào)。如：,a week or two=one or two weeks,一兩周,the Twelfth Lesson=Lesson Twelve,第十二課,考點(diǎn),3,“,一兩天,/,周,/,月,/,年”的表達(dá)法。如：,16,考點(diǎn),4,“,一個(gè)半”的兩種說法：,one/an hour and a half=one and a half hours,一個(gè)半小時(shí),17,考點(diǎn),5,分?jǐn)?shù)表達(dá)法。分子用基數(shù)詞，分母用序數(shù)詞，當(dāng)分子大于一時(shí)，分母要用復(fù)數(shù)。如：,1/5,讀作,one fifth;3/5,讀作,three fifths,；,1/4,可讀作,a quarter,。,注意：,表示幾分之幾或百分之幾的人或物時(shí)，要加,of,。如：,About three-fifths of the students in our class are boys.,我們班大約五分之三的學(xué)生是男生。,18,an eight-year-old,boy,一個(gè)八歲的男孩,a five-minute walk,步行,5,分鐘的路程,比較：,a five minutes,walk,步行,5,分鐘的路程,考點(diǎn),6,“,數(shù)詞,+-+,名詞”作定語，帶連字符的名詞用單數(shù)。如：,19,in the 1990,s,或,in the 1990s,在,20,世紀(jì),90,年代,注：,前加,the,，后加,s,，但,“”,可有可無。,考點(diǎn),7,年代表示法。如：,20,考點(diǎn),9,倍數(shù)表達(dá)法。,(adj/adv,課件）,考點(diǎn),8,“,幾十多歲”表達(dá)法。如：,in+one,s+,整十的基數(shù)詞復(fù)數(shù),in her thirties,在她三十多歲時(shí),21,考點(diǎn),10,序數(shù)詞或受序數(shù)詞修飾的名詞,后，通常用不定式作定語。如：,Those recently employed will be the first to be dismissed.,那些最近被雇傭的人將會(huì)先被解雇。,22,Shanghai is the first largest city in China.,上海是中國的第一大城市。,考點(diǎn),11,表示“第幾長,/,寬,/,高,/”,與最高級(jí)連用。如：,23,This is the second time I have been let down by that person;I shall never trust him again.,這是那個(gè)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.,這是他第一次單獨(dú)和她出去。,考點(diǎn),12,表達(dá)“某人第幾次做某事”句型。注意時(shí)態(tài)。如：,24,練,模,擬,操,一、單句填空,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，故用序數(shù)詞。,third,25,2.(2018,山西孝義,)What they learnt helped them make _ first airplane flight in 1903.,序數(shù)詞表順序時(shí)，其前要加定冠詞,the,。,3.He is the _(five)person to ask me the same question.,指第五個(gè)問同一問題的人。,the,fifth,26,4.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.,由該句型中的,It was,可知，用過去完成時(shí)。,twelfth,had gone,27,6.Osaka is the _(two)largest,city in Japan.,表示,“,第二大,”,要用序數(shù)詞。,7.Yuri Gagarin became the first man _(fly)in space.,在序數(shù)詞后或受序數(shù)詞修飾的名詞之后，通常用不定式作定語。,second,to fly,28,二、單句改錯(cuò),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,29,4.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,30,Thank you!,31,