河北省2019年中考英語(yǔ)二輪復(fù)習(xí) 第二篇 語(yǔ)法突破篇 語(yǔ)法專題04 數(shù)詞課件.ppt
語(yǔ)法專題(四)數(shù)詞,PARTTWO,第二篇語(yǔ)法突破篇,【中考考點(diǎn)】(1)基數(shù)詞和序數(shù)詞的構(gòu)成與基本用法。(2)分?jǐn)?shù)、百分?jǐn)?shù)及時(shí)間的表達(dá)方式。(3)hundred,thousand,million等詞的用法。,考點(diǎn)一基數(shù)詞的構(gòu)成,1.012單獨(dú)記。如:zero,one,two,three等。2.1319是個(gè)位數(shù)加-teen。如:14fourteen,17seventeen等,但13thirteen,15fifteen,18eighteen需要特殊記。3.20及20以上的整十的基數(shù)詞均以ty結(jié)尾。如:20twenty,30thirty,40forty,50fifty,80eighty等。4.“幾十幾”要加連字符號(hào)“-”。如:48forty-eight,97ninety-seven等。,5.“幾百幾”或者“幾百幾十幾”在“百”后加and。如:156onehundredandfifty-six,509fivehundredandnine等。6.四位數(shù)或者四位數(shù)以上的基數(shù)詞的拼寫規(guī)律:用逗號(hào)從右往左每三位加一個(gè)逗號(hào)。第一個(gè)逗號(hào)讀作thousand(千),第二個(gè)逗號(hào)讀作million(百萬),第三個(gè)逗號(hào)讀作billion(十億),hundred后莫忘“and”。如:3,610threethousandsixhundredandten;94,295ninety-fourthousandtwohundredandninety-five;274,350twohundredandseventy-fourthousandthreehundredandfifty等。,2.序數(shù)詞的構(gòu)成(1)“第一”、“第二”、“第三”分別是first,second,third。(2)“第四”到“第十九”除了fifth,eighth,ninth,twelfth是特殊的拼寫外,其余的都在相應(yīng)基數(shù)詞后面加“th”構(gòu)成。如:fourth。(3)20以上的整十的序數(shù)詞由相應(yīng)的基數(shù)詞變y為i,再加“-eth”。如:thirtythirtieth;fiftyfiftieth。(4)第一百hundredth;第一千thousandth;第一百萬millionth。(5)20以上的非整十的基數(shù)詞變序數(shù)詞時(shí),只變化個(gè)位數(shù)。如:twenty-onetwenty-first;onehundredandoneonehundredandfirst。,考點(diǎn)二序數(shù)詞的構(gòu)成,【巧學(xué)妙記】基變序,有規(guī)律,一、二、三特殊記,first,second,third,從四開始加-th,八去t,九去e,五和十二變ve為f,再加-th,整十變y為ie,再加-th,若想表示第幾十幾,只變個(gè)位就可以。,考點(diǎn)三數(shù)詞的表達(dá)方式,July22nd,20192019年7月22日onethird三分之一twothirds三分之二five(oclock)5點(diǎn)鐘fivepastseven7點(diǎn)5分twentytoeight7點(diǎn)40分thesixty-secondpage/PageSixty-two第六十二頁(yè)inthe1970s在20世紀(jì)70年代inhisforties在他四十多歲時(shí)sixty-fivepercent65%,考點(diǎn)四數(shù)詞的注意事項(xiàng),1.hundred,thousand,million前有基數(shù)詞修飾時(shí),表示確數(shù),其后不加“-s”,也不與of連用;表示“數(shù)百、數(shù)千、數(shù)百萬”這樣的泛指概念時(shí),后面則加“-s”,并與of連用。Therearetwohundredpeopleinthehall.大廳里有200人。Thousandsofpeoplegotothebeacheveryyear.每年,成千上萬的人到海濱去。Millionsofpeopleintheworldaresendingandreceivinge-mailseveryday.每天,世界上有數(shù)百萬人在收發(fā)郵件。2.序數(shù)詞前加不定冠詞a,表示“再一;又一”。Illhavetodoitasecondtime.我得再做一次。(已經(jīng)做過一次),用所給單詞的適當(dāng)形式填空1.2018萊蕪ThisisMarys(three)timetovisitthebeautifulcity.2.2018龍東Iwanttoinvitesomeofmyfriendstomy(twenty)birthdayparty.3.2018蘭州Asweallknow,TeachersDayisinthe(nine)monthoftheyear.Itisthebesttimeforustoshowourloveandrespecttothem.4.2018武威Ihavealreadyaskedhim(two)buthehasntgivenmeanyreply.5.2018揚(yáng)州Tomisthinkingaboutgoingasacowboyforthe(five)yearatHalloween.,third,twentieth,ninth,twice,fifth,6.2018上海Look!The(six)ladyfromtheleftinthephotoismyfavoriteteacher.7.2018安順Decemberisthe(twelve)monthofayear.8.2018泰州Allthefamilymembersarebusygettingreadyformyfathers(forty)birthdayparty.9.2018云南FootballWorldCupisbeingheldinRussianow.Itisthe(twenty-one)FootballWorldCup.10.2019原創(chuàng)In2019,wellcelebratethe(seventy)birthdayofPRC.,sixth,twelfth,fortieth,twenty-first,seventieth,