2026年中考复习专题四数词课件

专题四数词目录CONTENTS02课堂精讲03备考精练01思维导图思维导图01

课堂精讲02一、基数词的表达和用法1.基数词的表达(1)表示数目多少的数词叫基数词，基数词后面通常接可数名词。基数词(几)one，two，three，four，five，six，seven，eight，nine基数词(十几)eleven，twelve，thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen基数词(几十)ten，twenty，thirty，forty，fifty，sixty，seventy，eighty，ninety

(2)13—19的基数词以teen结尾，20—90的整十位均以ty结尾。十位数与个位数之间要加连字符“-”，如：thirty-one31；百位和十位之间加and，如：onehundredandfifty150。2.基数词的用法(1)“基数词＋单数名词＋形容词”构成合成形容词，如：afive-year-oldboy一个五岁的男孩，an800-metre-longbridge一座800米长的桥atwo-hourride=twohours’ride两小时的车程(2)当hundred，thousand，million这些词前面有具体的基数词(如one，two，three...或several，afew等)时，需用单数形式，直接修饰名词，不与of连用，强调“确切的数目”，如：twothousandpeople两千人，threehundredmetres三百米。当表示“成百上千、成千上万、数百万”

等不确切的“大量、许多”

时，需用复数形式(hundreds，thousands，millions)，且必须与of连用，修饰可数名词复数，如：hundredsofpeople数百人，thousandsofbirds成千上万的鸟。二、序数词的表达和用法1.序数词的构成和表达(1)表示顺序的数词叫序数词，序数词的构成：①序数词一般是以与之相应的基数词词尾加-th构成，如：fourth，tenth。但以下这些基数词变为序数词时，有特别之处。如：one—first，two—second，three—third，five—fifth，nine—ninth，twelve—twelfth。②以ty结尾的单词，要先变y为i，再加-eth。如：thirty—thirtieth，fifty—fiftieth。③以one，two，three等结尾的多位数词，只将个位数变成序数词。如：twenty-one—twenty-first。(2)基数词与序数词对应的变化：基数词序数词基数词序数词onefirstthirtythirtiethtwosecondfortyfortieththreethirdfiftyfiftiethfivefifthsixtysixtietheighteighthseventyseventiethninenintheightyeightiethtwelvetwelfthninetyninetiethtwentytwentiethninety-oneninety-first

2.序数词的用法(1)序数词前面一般加定冠词the或物主代词等限定词。如：thefirsttime第一次，hissecondson他的第二个儿子。(2)如果序数词前加不定冠词a/an，则表示“又一，再一”。如：I’vetriedtwice.AndIwantathirdtry.我已经试过两次了，还想再试一次。(3)“the＋序数词＋最高级＋名词＋in/of＋比较范围”的表达。如：TheYangtzeRiveristhefirstlongestriverinChina.长江是中国的第一长河。三、分数、小数、百分数的表达1.分数的表达：分子用基数词，分母用序数词，分子是1，分母用单数，分子大于1，分母用复数。当分母是2时，可用half；当分母是4时，可用quarter。如：onethird1/3，twothirds2/3，ahalf1/2，onefourth或aquarter1/4，threefourths或threequarters3/4。2.分数作主语时，谓语动词要根据分数后的名词来确定，如果是不可数名词或是可数名词单数则谓语动词用单数，如果是可数名词复数则谓语动词用复数。如：ThreequartersoftheinformationcomesfromtheInternet.四分之三的信息来自互联网。Halfoftheapplehasbeeneaten.这个苹果的一半已被吃掉了。Onethirdofthestudentsherearefromruralareas.这里的学生有三分之一来自农村地区。3.小数和百分数的表达法(1)小数点读作point，小数点前后的数用基数词表示。如：zeropointzerofour0.04。(2)百分数用percent表示。如：threepercent3%。四、时间的表达1.时刻的表达：小时、点钟、分钟、秒钟要用基数词。表达方式时间读法示例顺读法整点基数词(＋o’clock)9：00

nine(o’clock)几点零几分钟点数(＋o)＋分钟数9：05

nine(o)

five几点几十分钟点数＋分钟数9：40

nine

forty逆读法＜30分钟分钟数＋past＋钟点数9：10

ten

past

nine＞30分钟到下一个钟点所差的分钟数＋to＋下一个钟点数9：50

ten

to

ten30分钟half

past＋钟点数9：30

half

past

nine说明15分、45分可以用a

quarter表示，如：9：45

a

quarter

to

ten

2.年份、年代的表达(1)“年份”用基数词。nineteenninety-nine1999年，nineteenhundred1900年，(theyear)twothousand2000年，nineteenzerofive1905年(2)“年”用基数词，“日”用序数词。1998年6月8日写作：June8，1998；读作：Junetheeighth，nineteenninety-eight或theeighthofJune，nineteenninety-eight(3)世纪、年代的表达inthenineties在90年代，inthenineteenthcentury在19世纪，inthe1730s或1730’s在18世纪30年代五、编号的表达1.用基数词来表示编号时，应放在名词之后，基数词和名词首字母大写，且不需任何冠词。如：PageOne第一页；Room301301房间；CarriageNo.5第五号车厢。2.用序数词来表示编号时，应放在名词之前，且前面需加定冠词the。如：thefirstpage第一页；thetenthweek第十周。六、倍数的表达英语中，表示倍数时，“一倍”用once表示；“两倍”用twice表示；三倍或三倍以上用“基数词＋times”表示。表达倍数常用以下几种结构。1.倍数＋形容词或副词的比较级＋than…Herbedroomistwicebiggerthanyours.她的卧室比你的大两倍。2.倍数＋as＋形容词或副词原级＋as…Theballisthreetimesasheavyasthatone.这个球的重量是那个球的三倍。3.倍数＋the＋n.(size/weight/height/length…)＋of…Theriverisfourtimesthelengthofthestreamnearby.这条河的长度是附近小溪的四倍。备考精练03一、用括号内所给词的适当形式填空。1.Shewonthe____________(one)prizeintheschoolEnglishcompetition.

2.Afterfailingthetest，theteachergavehima____________(two)chancetoprovehimself.

3.Thisisthe____________(three)timeI’veremindedyoutobringyourtextbook.

4.Ourclassroomisonthe____________(five)floorofthebuilding.

firstsecondthirdfifth5.The____________(eight)questioninthemathstestisthehardestofall.

6.Sheisreadingthe____________(nine)bookintheseriesthismonth.

7.Decemberisthe____________(twelve)monthoftheyear.

8.Thefinalexamwillbeheldonthe____________(thirty)ofJune.

9.AIhasbecomeanimportantpartofdailylifeinthe______________(twenty-one)century.

eighthninthtwelfththirtiethtwenty-first10.Aboutthree____________(four)oftheEarth’ssurfaceiscoveredbywater.

11.____________(thousand)ofpeoplewatchedthefireworksonNewYear’sEve.

12.Shecheckedheranswers____________(two)beforehandingin.

13.Hecelebratedhis____________(twenty-five)birthdaywithabigparty.

14.TomwenttoChinainhis____________(thirty).

15.Inher____________(forty)，shestartedherownbusinessandbecamesuccessful.

fourthsThousandstwicetwenty-fifththirtiesforties二、六选五。(2025·成都)A.Beintouchwithyourself.B.Startfromtheinsideandmoveout.C.Sitdownandfindoutwhatcomesfirst.D.Writedownthethingsthatneedtogetdone.E.Dealingwithsuchfeelingsdoesn’tcomeeasy.F.Itisquitenaturalwhenhumansarefacingstress.Fromtimetotime，youmaysufferfrombeingoverwhelmed(难以承受的).Youmayfeeldisappointed，sad，hurtorevenhelpless.1.________Hereissomeadvicetohelpyou.

EKnowyourfeelings.Itcanbehardsometimestofindtherightwordstoexpresswhatyou’refeeling.TheFeelingsWheelcanhelp.2.____________Recogniseyourprimaryfeelinginthemiddleofthewheel，andthenseewhatotherfeelingsthisconnectswithasyoulookoutwardsfromthecenter.Thiscanhelpyougetclearaboutwhatyou’refeeling.

Acceptwhatyoufeel.Itisokaytofeellonely；itisokaytofeelnervous；anditisokaytofeelasiftheworldisgoingtoend.3.____________There’snothingwrongwithyoufeelingthisway.Manyofusdotoo，atdifferentpointsinourlives.

BFMakealist.Sometimesyoumayfeeloverwhelmedwhenyouhavetoomanythingstodo.Perhapsthereistoomuchtostudy，oryoumayhavealongto-dolistwhenorganisingabirthdayparty.4.____________Then，listthetasksinorderofimportanceorurgency(紧迫性).Youwillfeelcalmerwhenyoufinishthelist—youwouldhavecontroloverthetasksandyourself!

Learningtomanageoverwhelmingfeelingstakestimeandpractice.5.____________Learnwhatworksbestforyou.YouonlyhaveoneYOU!

DA

三、语法填空。(2025·湖北改编)Haveyoueverusedyourfingerprinttoopenadoor?Haveyouevertakenaself-drivingtaxiontheroad?1.____________(technology)havebroughtgreatchangestoourlife.Actually，changescanalso2.____________(find)inyourschool.

“Now，wedon’thavetorushtothecanteen(食堂)assoonasthebellrings，”saysHuLiang，astudentfromJiangxi.3.____________(he)schoolintroducedasmartcanteensystem(系统)thisyear.Studentschoosemealsonlinefirst.WhenTechnologiesbe

foundHisit’stimefortheirorders，theypickupmeals4