2023年安徽中考英語(yǔ)總復(fù)習(xí)二輪專題課件：專題五 數(shù)詞

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1、第二部分,,語(yǔ)法專題剖析,專題五,,數(shù)詞,2023,年安徽中考英語(yǔ)總復(fù)習(xí)二輪專題課件,（近10年未考）,考點(diǎn)透析,常見(jiàn)基數(shù)詞與序數(shù)詞對(duì)照表,one→first,two→second,three→third,four→fourth,five→fifth,six→sixth,seven→seventh,eight→eighth,nine→ninth,ten→tenth,eleven→eleventh,twelve→twelfth,thirteen→thirteenth,fourteen→fourteenth,fifteen→fifteenth,sixteen→sixteenth,seventeen

2、→seventeenth,eighteen→eighteenth,nineteen→nineteenth,twenty→twentieth,thirty→thirtieth,forty→fortieth,fifty→fiftieth,sixty→sixtieth,seventy→seventieth,eighty→eightieth,ninety→ninetieth,續(xù)表,基變序，有規(guī)律，末尾加上,-th,；,一二三，特殊記，詞尾分別,t，d，d,；,八去,t,，九去,e,，,ve,要用,f,替；,以,y,結(jié)尾變,-ie,，后跟,-th,莫忘記；,若想表示幾十幾，只變個(gè)位就可以。,考向1,,基

3、數(shù)詞,（1）,表示數(shù)量：,表示人或事物的確切數(shù)量，用基數(shù)詞＋可數(shù)名詞單數(shù)/復(fù)數(shù)。如：one,,apple一個(gè)蘋果；two,,pears兩個(gè)梨。,（2）,表示時(shí)刻：,①表示“……點(diǎn)”用“基數(shù)詞＋o,’,clock”，如：nine,,o,’,clock,,九點(diǎn)鐘；,②表示“……點(diǎn)過(guò)……分”時(shí)，若分鐘數(shù)小于或等于30分鐘，用“基數(shù)詞＋past+基數(shù)詞”，如：twenty,,past,,three,,三點(diǎn)二十分；,③表示“差……分到……點(diǎn)”時(shí)，若分鐘數(shù)小于30分鐘，,,用“基數(shù)詞＋to+基數(shù)詞”，,,如：twenty,,to,,three兩點(diǎn)四十分（三點(diǎn)差二十分）。,（3）,表示日期：,①年份用基數(shù)詞

4、，如：in,,2023,,在2023年；,②日期用序數(shù)詞，如：on,,Sept.12th,,在9月12日。,（4）,表示年代和年齡：,①“in,,the+整十的年份的復(fù)數(shù)（年份的數(shù)字后加-s）”表示“在幾世紀(jì)幾十年代”。如：in,,the,,1870s,,在19世紀(jì)70年代,②表示年齡的句式。如：,He,,is,,a,,boy,,of,,10,,years,,old.,,=He,,is,,a,,10-year-old,,boy.,,他是一個(gè)10歲的男孩子。,③“at,,the,,age,,of+基數(shù)詞”表示“在……歲時(shí)”。如：,At,,the,,age,,of,,ten,,,he,,was,,

5、good,,at,,playing,,the,,piano.,,他10歲時(shí)就擅長(zhǎng)彈鋼琴了。,④“in+one,’,s+整十的基數(shù)詞復(fù)數(shù)”表示“在某人幾十多歲時(shí)”。如：,When,,he,,was,,in,,his,,fifties,,,the,,man,,became,,a,,famous,,writer.這位男士在他50多歲時(shí)成為一名著名作家。,考向2,,序數(shù)詞,（1）,序數(shù)詞前加the，,,其后接名詞單數(shù)。,如：,Father,’,s,,Day,,is,,on,,the,,third,,Sunday,,of,,June,,and,,it,’,s,,popular,,in,,the,,USA

6、.,,父親節(jié)在六月的第三個(gè)星期天，該節(jié)日在美國(guó)很流行。,（2）,序數(shù)詞前若有形容詞性物主代詞、名詞所有格等限定詞時(shí)，則不用加the。,如：,It,,is,,my,,third,,time,,to,,visit,,Beijing.,,這是我第三次參觀北京。,（3）,序數(shù)詞前面也可以加不定冠詞a或an，,,表示“又一，再”，,,內(nèi)含順序性。,如：,We,’,ve,,tried,,it,,three,,times.,,Must,,we,,try,,it,,a,,fourth,,time？,,我們已經(jīng)試過(guò)三遍了。還需再試一次（第四次）嗎？,考向三,,概數(shù)詞,（1）,表示確切的數(shù)字：,具體數(shù)字+概數(shù)詞+

7、可數(shù)名詞復(fù)數(shù)。hundred，,,thousand,,,million,,,billion等詞與具體的數(shù)字one,,,two…或several，,,some,,,many等詞連用時(shí)，要用單數(shù)形式。如：,five,,hundred,,people五百人,two,,thousand,,books兩千本書(shū),many,,million,,trees幾百萬(wàn)棵樹(shù),（2）,表示不確切的數(shù)字:,概數(shù)詞加-s+of+可數(shù)名詞復(fù)數(shù)，且前面不再加具體數(shù)字。如：thousands,,of,,factories成千上萬(wàn)家工廠,考向四,,分?jǐn)?shù),,用英文單詞表示分?jǐn)?shù)時(shí)，一般情況下，分子用基數(shù)詞，分母用序數(shù)詞，當(dāng)分子大于一時(shí)

8、，分母須用序數(shù)詞的復(fù)數(shù)形式。,●1/2:,,one,,half,,,a,,half,,（不讀作one,,second）,●1/3:,,one,,third或a,,third,●2/3:,,two,,thirds,●3/4:,,three,,quarters或three,,fourths,●2/5:,,two,,fifths,提升訓(xùn)練,1.The,,girl,,living,,on,,the,,___,,floor,,often,,helps,,old,,people,,clean,,their,,rooms,,and,,hears,,them,,tell,,old,,stories.,A.fi

9、ve,,B.fifth,,C.fifths,,D.fifteen,2.There,,are,,___,,people,,planting,,trees,,in,,the,,park,,,because,,spring,,is,,the,,time,,to,,plant,,trees.,A.three,,hundreds,,B.three,,hundred,,of,C.hundred,,of,,D.hundreds,,of,√,√,3.Ben,,is,,a,,hard-working,,writer.,,He,,wrote,,his,,fifth,,novel,,when,,he,,was,___,,years,,old.,A.fifties,,B.fifty,,C.fiftieth,,D.the,,fiftieth,4.According,,to,,the,,survey,,,nearly,,___,,of,,the,,students,,in,,our,,class,,come,,to,,school,,without,,having,,healthy,,breakfast.,A.two,,fifth,,B.two,,fifths,,C.second,,fifth,,D.second,,fifths,√,√,