数词的学案.doc

数词学案表示数目多少或顺序多少的词叫数词，数词分为基数词和序数词。表示数目多少的数词叫基数词；表示顺序的数词叫序数词。一、基数词1）基数词写法和读法：345three hundred and forty-five；2）基数词一般是单数形式，但下列情况，常用复数：a. 与of 短语连用，表示概数，不能与具体数目连 用，如scores of people 指许多人；b.在一些表示“一排”或“一组”的词组里。如：They arrived in twos and threes. 他们三三两两的到达了。c. 表示“几十岁”；d. 表示“年代”，用 in +the +数词复数；e. 在乘法运算的一种表示法里，如：3 x 5 = 15 Three fives is (are) fifteen.f 分数，百分数二、序数词序数词的缩写形式： first-1stsecond-2ndthirty-first-31st序数词前加a 表示“又一”序数词与不定冠词，与不定式，与最高级连用三、数词的用法1）倍数表示法a. 主语+谓语+倍数（或分数）+ as + adj. + asI have three times as many as you. 我有你三倍那么多。b. 主语+谓语+倍数（分数）+ the size (amount，length) ofThe earth is 49 times the size of the moon. 地球是月球的49倍。c. 主语+谓语+倍数（分数）+ 形容词（副词）比较级+ thanThe grain output is 8 percent higher this year than that of last year. 今年比去年粮食产量增加8%。d. 还可以用by+倍数，表示增加多少倍The production of grain has been increased by four times this year. 今年粮食产量增加了4倍。2）分数表示法构成：基数词代表分子，序数词代表分母。分子大于1时，分子的序数词用单数，分母序数词用复数：1/3 one-third3/37 three and three-sevenths数词与主谓一致 进行考查第一部分六年高考题荟萃2010年高考题1.（10湖南）Listeningtoloudmusicatrockconcertscausedhearinglossinsometeenagers.A.is B.are C.has D.have 答案：C考点：主谓一致解析：根据动名词短语作主语，句子的谓语动词用单数形式，由此排除B、D两项，根据主语与caused的主动关系，排除A项（10四川）SuchpoetsasShakespearewidelyread，ofwhoseworks，however，somedifficulttounderstandAare；areBis；isCare；isDis：are答案：A考点：考查主谓一致。解析：主句中的主语应为poets,谓语动词用复数，其后的非限制性定语从句的主语应为someofwhoseworks，谓语动词也应是复数。故选A。（10全国）.Barbaraiseasytorecognizeasshestheonlyoneofthewomenwho_eveningdress.A.wearB.wearsC.haswornD.haveworn答案：B解析：考查主谓一致和时态。首先theonlyoneof.为先行词时，定语从句修饰的是one，即one是主语，而非后面的复数women，根据主谓一致的原则，谓语动词应该用复数，排除A，D。另外，从“is”可以看出句子是要表示一种习惯，因此要用一般现在时，排除C，故选A1.(09山东25)ThenumberofforeignstudentsattendingChineseuniversities_risingsteadilysince1990.A.isB.areC.hasbeenD.havebeen答案C解析本题考查主谓一致和时态，主语是thenumber故谓语动词用单数，又因时间状语是since1997所以用完成时态。.(09陕西7)Dr.Smith,togetherwithhiswifeanddaughters,visitBeijingthissummer.A.isgoingtoB.aregoingtoC.wasgoingtoD.weregoingto答案A解析考查动词时态和主谓一致。主语中心词是Dr.Smith，表单数，谓语动词用单数形式；时间状语是thissummer，表计划性的将来，故时态用一般将来时，选A。.(09江西24)Accordingtostatistics,amanismorethantwiceaslikelytodieofskincancer_awoman.A.thanB.suchC.soD.as答案D解析本题考查比较级的结构，as.as,注意句中的morethan只是修饰twice。.(09四川17)Theteachertogetherwiththestudents_discussingReadingSkillsthat_newlypublishedinAmerica.A.are;were B.is;were C.are;was D.is;was答案D5.(09四川19)Myuncleshouseinthedowntownareaismuchsmallerthanours,butitistwice_expensive.A.as B.so C.too D.very答案A6.(09辽宁33)PetersjacketlookedjustthesameasJacks,butitcosthis.A.asmuchtwiceas B.twiceasmuchasC.muchastwiceas D.astwicemuchas答案B解析考查as-as同级比较前的修饰语位置。twice应该放在第一个as之前，选B符合。7(09湖南33)Eitheryouoroneofyourstudents_toattendthemeetingthatisduetomorrow.A.are B.is C.have D.be答案B8 .(08陕西15)Didyougototheshowlastnight?Yeah.Everyboyandgirlinthearea invited.A.were B.havebeen C.hasbeen D.was答案D解析主语是everyboyandgirl，表示单数概念，故谓语动词用单数，且询问昨晚的情况，有明确的过去时间，所以应选择was。9.(08陕西16)Tenyearsagothepopulationofourvillagewas thatoftheirs.A.astwicelargeas B.twiceaslargeas C.twiceasmuchas D.astwicemuchas答案B解析由句式结构看该题考查倍数句型的同级比较形式。其正确语序应为：倍数词+as+形容词/副词原级+as+其他。二 Choose the best answer.1 The selling price of that house and _ $25000.A many furniture are B some furniture isC the furniture is D many pieces of furniture are2 His car broke down when he was only _ home.A half way to B half way C a half way D half a way3 People throughout the world are eating _ meat per person as they did in 1945.A more than twice B twice as much C twice much as D twice more4 How many times have you seen her? -Oh, _times, I think.A a hundred of B hundred C hundreds of D hundreds5 September is _ month of the year.A nine B ninth C the ninth D the nineth6 _ of the apples in the fruit bowl are soft and sweet.A Two-third B Second-third C Two-thirds D Second-thirds7 There are _ children in the room. The _one from the left is my brother.A fourth, four B four, fourth C four, four D forth, four8 Two days are not enough for me to finish the work. I need _ day.A other B the other C the third D a third9 A UN report says that the world population will pass six billion by the end of _ century.A twentieth B twenty C the twentieth D twentyth10 _ other stars are much bigger and brighter than the sun.A Thousands of B Thousand of C The thousand of D Thousands11 _ martyrs have heroically laid down their lives for the people.A Thousands upon thousand of B Thousand and thousands ofC Thousands upon thousands of D Thousand and thousand of12 They received _ of letters about their TV programs.A dozen B dozen and dozen C score D dozens13 Who is that man, _ in the front row?A one B the people C first D the first14 We have produced _ this year as we did in 1993.A as much cotton twice B as twice much cottonC much as twice cotton D twice as much cotton15 The earth is about _ as the moon.A as fifty time big B fifty times as big C as big fifty time D fifty as times big16 The population of Alaskan cities has been _ in the past three years.A more than doubled B more doubled than C much than doubled D much doubled than17 The moon is about _ in diameter as the earth.A one three as large B one threes as large C one third as large D one thirds as large18 Five hundred yuan a month _ enough to live on.A is B are