Unit 2 Numbers 初中英語(yǔ)必背材料

8AUnit2Numbers必備材料一、短語(yǔ)1.alongtimeago很久以前2.challengesbtodosth向某人發(fā)出挑戰(zhàn)3.andsoon等等4.copydown抄下來(lái)5.giveinstructionsabout…關(guān)于…給予指示6.playchess下象棋7.growrice種大米8.playcards玩牌9.awiseoldman一位睿智的老人10.winthegame贏得比賽11.onegrainofrice一粒米12.therestof…剩余的…13.ordersbtodosth命令某人做某事14.askforhelp尋求幫助15.promisesbsth承諾某人某物/某事16.get/winaprize獲獎(jiǎng)17.forsure確實(shí)，毫無(wú)疑問(wèn)地18.makemoney掙錢19.promisetodosth承諾做某事20.followone’sadvice聽(tīng)從某人的建議21.nothingbut只不過(guò)22.fromthenon從那時(shí)起23.anymore再也不24.allyeararound一年上頭，一整年25.takeplace發(fā)生26.trafficaccident交通事故27.countingmethods計(jì)數(shù)法則28.apieceofstring一條帶子29.peoplearoundtheworld世界上的人30.developinto發(fā)展成為31.leadto導(dǎo)致，通向，引起二、同義詞或釋義1.instructions=order2.takeplace=happen3.accept=agree4.follow=obey5.prize=award6.wise=smart/clever7.correct=right8.therest=theothers9.realize=know10.alongtimeago=inthepast11.insteadof=inplaceof12.alargeamountof=alargequantityof13.not…anymore=not…anylonger三、詞形1．instructionn.指示instructv.指示2.Indian.印度Indianadj.印度的,n.印度人3.wiseadj.智慧的wisdomn.智慧4.goldn.金子goldenadj.金子做的，金的5.correctadj.正確的correctlyadv.正確地6.realizev.意識(shí)到realizationn.意識(shí)四、重點(diǎn)句子1.Alongtimeago,therewasakinginIndia.2.Oneday,awiseoldmancametothepalaceandthekingchallengedhimtoagame.3.Youcanhaveanyprizeifyouwinthegame.4.Wouldn’tyoulikegoldorsilverinstead?5.Thekingorderedhismentocollectabagofrice.6.Thekingquicklyrealizedtheproblem–evenwithallthericeinthecountry,hewouldstillnothaveenoughricetoputonallthesqures!7.Icanteachyouhowtomakemoneyifyoupromisetofollowmyadvice.8.Icanseenothingbutanemptyfield.9.Fromthenonhewasnotlazyanymore.Heworkedhardallyearround.五、語(yǔ)法（一）基數(shù)詞1one11eleven21twenty-one40forty2two12telve22twenty-two50fifty3three13thirteen23twenty-three60sixty4four14fourteen24twenty-four70seventy5five15fifteen25twenty-five80eighty6six16sixteen26twenty-six90ninety7seven17seventeen27twenty-seven100onehundred8eight18eighteen28twenty-eight1019nine19nineteen29twenty-nine12310ten20twenty30thirty用法：

(1)表示人的不確切歲數(shù)時(shí)，用幾十的復(fù)數(shù)形式表達(dá)。如：Heinventedalotofusefulthingsinhisthirties.(2)表示年代，用“inthe+年的復(fù)數(shù)”表達(dá)。如：

TheTVplaytellsastoryinthe1970s.(3)hundred,thousand,million,billion在表示確切的數(shù)目時(shí)，不能加復(fù)數(shù)詞尾-s。但當(dāng)這些詞作名詞用時(shí)，常與of連用，這時(shí)可以用其復(fù)數(shù)形式。Therecordwassoldtwomillioncopies.TherearemillionsoflivingthingsonEarth.(4)表示順序或編號(hào)時(shí)，基數(shù)詞要放在名詞之后，且名詞首字母要大寫(xiě)。如：

MrSmithlivesinRoomSix.（二）序數(shù)詞1stfirst7thseventh13ththirteenth19thnineteenth2ndsecond8theighth14thfourteenth20thtwentieth3rdthird9thninth15thfifteenth21sttwenty-first4thfourth10thtenth16thsixteenth33rdthirty-third5thfifth11theleventh17thseventeenth40thfortieth6thsixth12thtwelfth18theighteenth100thhundred(1)序數(shù)詞表示順序，前面一般要有定冠詞the。但是，當(dāng)序數(shù)詞前面已有物主代詞同時(shí)修飾名詞時(shí)，則不再用定冠詞the。如：

Jimmylivesonthesecondflooroftheapartment.吉米住在公寓的第二層。

Todayisherfifthbirthday,sosheisveryhappy.(2)若序數(shù)詞前面有不定冠詞a或an時(shí)，表示“又一；再一”。如：

IthinkImustdoitasecondtime.(3)表示編號(hào)時(shí)，“名詞+基數(shù)詞”相當(dāng)于“the+序數(shù)詞+名詞”。在“the+序數(shù)詞+名詞”結(jié)構(gòu)中，名詞首字母不大寫(xiě)WewillhaveLes