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1、初中英语知识要点汇总（四）41.all/each/both/none/either/neither不定代词或形容词的用法：Allboys/AlloftheboysarefromChina.（all若接可数复数，谓语也用复数。）Allofthewaterispolluted.（若接不可数，谓语用单数。）Eachboy/Eachoftheboyshasadifferentbag.each接名词单数或接of+限定词+复数，其后谓语都用单数。Bothofthetwinsareclever.后面谓语用复数。Noneoft
2、hestudentshas/havebeentherebefore.none+of+限定词+复数,谓语用单、复数都可。另见88.-Whenshallwemeet,SaturdayorSunday?-EitherdayisOK./EitherofthedaysisOK.谓语用单数。-Whenshallwemeet,SaturdayorSunday?-Sorry,Ihavetolookaftermymotherthesetwodays.Thatis,neithertimeisOK./neitherofthedays
3、isOK.谓语用单数。【all/each/none分别指三者或更多中的“都”/“每一个”/“没有一个”。both/either/neither分别指两者中“都”/“任何一个”/“没有一个”】42.计量表达法：数量+单位+形容词。Thestreetistwokilometerslong.Thatboycanjumpfourmetersaway.（此处不用far,见49）Thefishisfivekilosheavy.Thestreetisfortymeterswide.Thisbabyisonlysixmonth
4、sold.若计量表达的后面跟有名词，则要用连字符，单位不用复数。Theyduganeight-meter-deephole./.Iboughta10-kilo-heavyfish.It’sapieceof2-meter-thickice./Theybuilta50-meter-widestreet.It’satwo-monthholiday.Sheisathree-childmother.(最后两句计量中省略了形容词)43.MustI/MayI/NeedI…?用法：MustI…?“我必须…吗？”A:MustIf
5、inishthework?B:Yes,youmust./No,youneedn’t.NeedI…?“我有必要…吗？”或“我需要…吗？”A:NeedIcleanthehouse?B:Yes,youmust./No,youneedn’t.MayI…?“我可以…吗？”表示请求。A:MayIgooutforawalknow?B:Yes,youcan./No,youmustn’t/can’t.第-18-页共18页44.hundred/thousand/million/billion:前有具体数字，这些词不加s及of.如：
6、ninehundredpeople,tenthousandstudents等。这些词前若无具体数字，后加s和of.如：thousandsoftrees;manymillionsofpeople;hundredsofcars;billionsofstars但前若有several,后常不加s和of：severalmillionpounds45.反意疑问句(此处用QT表示反意疑问句后一部分内容)的部分用法:something,nothing,anything,everything作主语，QT主语用it.Somethi
7、ngiswrong,isn’tit?/Nothingisdifficult,isit?当主句中think的主语是第一人称时，QT要结合think后的从句而定：IthinkLucycandowellintheexam,can’tshe?Idon’tthinkhewillcomehereontime,willhe?祈使句的QT一般用willyou?（包括letus…..）,而Let’s…用shallwe?Getupnow,willyou?Don’tbenoisy,willyou?Bequiet,willyou?Pl
8、easedon’ttalk,willyou?Letusdoitnow,willyou?Don’ttalkinclass,willyou?Let’sdoitnow,shallwe?Let’ssingasong,shallwe?Therebe句型，QT主语用there.Thereisamanworkinginthefield,isn’tthere?Thereusedtobeameeting
