小學(xué)英語(yǔ)數(shù)詞及專項(xiàng)訓(xùn)練

小學(xué)英語(yǔ)數(shù)詞及專項(xiàng)訓(xùn)

練一、數(shù)詞的分類：基數(shù)詞和序數(shù)詞?；鶖?shù)用于表示數(shù)量多少，而基數(shù)詞用于表示次序，常在日期中出現(xiàn)區(qū)別：基數(shù)詞前面沒(méi)有“the”；序數(shù)詞前一定要有“the”。1、超過(guò)二十以上的兩位數(shù)需要在個(gè)位和十位之間加上“-”。如：21twenty-one2、用基數(shù)詞來(lái)修飾可數(shù)名詞時(shí)，一定別忘了它的復(fù)數(shù)形式。如：十八個(gè)男孩eighteenboys3、用基數(shù)詞修飾不可數(shù)名詞時(shí)，如是復(fù)數(shù)，變它的量詞為復(fù)數(shù)。如：兩碗米飯twobowlsofrice4、序數(shù)詞一般加“th",特殊的有：first,second,third,fifth,eighth,ninth,twelfth；二十及二十以外的整十：twentieth,thirtieth,fortieth…“第幾十幾”：前面整十不變，后面“幾”改為序數(shù)詞。如：88eighty-eighth巧記基數(shù)詞和序數(shù)詞：1,2,3,特殊記，加th從4起；8少t,9去e,逢5逢12ve變f;20~90,y要變ie;若是幾十幾，前基后序別倒位.二、數(shù)詞的表示方法：基數(shù)詞序數(shù)詞對(duì)照表1onefirst1th2twosecond2nd3threethird3rd4fourfourth4th5fivefifth5th6sixsixth6th7sevenseventh7th8eighteighth8th9nineninth9th10tententh10th11eleveneleventh11th12twelvetwelfth12th13thirteenthirteenth13th14fourteenfourteenth14th15fifteenfifteenth15th16sixteensixteenth16th17seventeenseventeenth17th18eighteeneighteenth18th19nineteennineteenth19th20twentytwentieth20th21twenty-onetwenty-first21st22twenty-twotwenty-second22nd23twenty-threetwenty-third23rd24twenty-fourtwenty-fourth24th25twenty-fivetwenty-fifth25th26twenty-sixtwenty-sixth26th27twenty-seventwenty-seventh27th28twenty-eighttwenty-eighth28th29twenty-ninetwenty-ninth29th30thirtythirtieth30th40fortyfortieth40th50fiftyfiftieth50th60sixtysixtieth60th70seventyseventieth70th80eightyeightieth80th90ninetyninetieth90th100onehundredonehundredth100th章節(jié)、頁(yè)數(shù)的讀法第一章：thefirstchapter;ChapterOne第二節(jié)：thesecondsection;SectionTwo第三課：thethirdlesson;LessonThree第463頁(yè)：pagefoursixthree第2564頁(yè)：pagetwofivesixfour或twenty-fivesixty-four注意：如果頁(yè)碼的數(shù)字較長(zhǎng)，通常用基數(shù)詞。房間、門牌、電話號(hào)碼的讀法第305房間:Roomthreeo(零)five長(zhǎng)安街76號(hào)：seventy-sixChang'anStreet電話號(hào)碼：204-2244:telephonenumbertwoo(零)fourtwotwo(doubletwo)fourfour十一路公共汽車：Bus(No.)eleven年代、日期、時(shí)刻的讀法(1)年份是四位數(shù)字時(shí)，各分成二位來(lái)讀，eg.公元1995年：1995(=nineteenninety-five)(2)日期使用一般的序數(shù)詞來(lái)讀取eg.5月10日：May10th(=Maytenth)(3)時(shí)刻通常用基數(shù)詞來(lái)讀eg.8點(diǎn)45分：8:45(=eightforty-five)(4)年代表示法：eg.二十世紀(jì)九十年代：1990'snineteenninetieshundred,thousand,million用法：hundred,thousand,million前面有具體數(shù)字，要用單數(shù)形式，但如果它們后面有of,那它們要用復(fù)數(shù)形式，同時(shí),前面不能再加具體的數(shù)目eg.twothousand兩千thousandsof成千上萬(wàn)hundredsof成百上千millionsof數(shù)以百萬(wàn)計(jì)Thousandsandthousandsofpeoplehavevisitedthecity.成千上萬(wàn)的人參觀了這座城市。四、倍數(shù)、分?jǐn)?shù)、小數(shù)、百分?jǐn)?shù)的表示方法：倍數(shù)：time(s)Thisroomisthreetimesaslargeasthatone.這個(gè)房間有那個(gè)房間三個(gè)大。Threethreesarenine.orThreetimesthreeisnine.三三得九。分?jǐn)?shù)：分子用基數(shù)詞表示，分母用序數(shù)詞表示，分子為2以上時(shí)，分母(序數(shù)詞)應(yīng)變?yōu)閺?fù)數(shù)。三分之一,onethird,athird；五分之三，threefifths數(shù)短語(yǔ)作主語(yǔ)時(shí)，謂語(yǔ)的數(shù)由of后面的名詞來(lái)決定，名詞為可數(shù)名詞復(fù)數(shù)，則謂語(yǔ)用復(fù)數(shù)；名詞為不可數(shù)名詞,謂語(yǔ)用單數(shù)。Athirdofthelandiscoveredbyforests.Twothirdsoftheworkersareworkinghard.小數(shù)：小數(shù)點(diǎn)前的基數(shù)詞與前面所講的基數(shù)詞讀法完全相同，小數(shù)點(diǎn)后面則須將數(shù)字一一讀出。讀作onepointtwofive讀作naughtpointfivesix或zeropointfivesix百分?jǐn)?shù)：百分號(hào)%讀作percenteg.5%讀作fivepercent五、算式表達(dá)法：加法A+B=CtAplusBisC.orAandBisC.減法A－B=CtAminusBisC.orBfromAisC.乘法AxB=CtAtimesBisC.orAmultipliedbyBisC.除法A-B=CtadividedbyBisC.六、需注意的問(wèn)題：數(shù)詞＋名詞用"－"連在一起作定語(yǔ)，后面名詞不用復(fù)數(shù)。eg.afour-year-oldboy有些結(jié)構(gòu)既有基數(shù)詞又有序數(shù)詞。eg.thefirstthreequestionsthelastfiveminutes英語(yǔ)中有一些短語(yǔ)包含數(shù)詞，不能從表面上理解它們的意義eg.oneandtheonly唯一beatonewith與…一致beonallfours匍匐；趴Two'scompany,threeisacrowd二人成伴，三人不歡oneandthesame同一個(gè)；完全一樣forone舉個(gè)例子說(shuō)tentoone十之八九athousandtoone十之八九talknineteentothedozen滔滔不絕bytwosandthrees三三兩兩inonesandtwos三三兩兩firstandlast總共firstofall首先f(wàn)romthefirst從一開始練習(xí)：一、漢譯英I、十二個(gè)家庭2、在上午九點(diǎn)3、在下午4:304、在七月5、第三個(gè)孩子6、第一課7、六月一日8、三點(diǎn)零五9、十二個(gè)月10、三十九美元II、四分之一12、五分之二二、單項(xiàng)選擇treeis_tall.fourteenfootsB.fourteenfeetC.fourteenfootD.fortyfootplus_.A.fourtyisninetyB.fortyisninetyC.thirtyisninetyD.fiftyisninetyare_studentsinthisschool.fourhundredfifty-twofourhundredsfiftytwofourhundredandfifty-twofourhundredsandfifty-twohomeisabout_awayfromtheschool.A.threehundredmetreB.threehundredsmetresC.threehundredmetresD.threehundredmetreis_andlastmonthinayear.twelvethtwelfth_oftheteachersintheschoolarefromcolleges.quartersfifthweretwoworldwarsduring_century.twentiestwentieththeforties,hisfatherservedintheNew_Army（新四軍），whilehismotherworkedinthe_RouteArmy（八路軍）.A.Fourth;Eighth;Eighth;eight;eightharelearning_now.twenty-firstlessonTwenty-first21thlesson21stwillstayherefor_.andhalfmonthandahalfmonthmonthsandahalfandahalfmonths一What'sthedatetoday一It's_.5:00一Wouldyouliketoeat_apples一No,thankyou.twomoreanotherelsesaidhewouldcomebackin_.ortwodaysortwodaysandtwodaysdayandtwo—Howoftendoyouwritetoyourparentsabroadamonthtimesamonthsecondtimeamonthatimeamonth_peoplediedinthetrafficaccidentsintheworld.ofofthousandsofthousandofthe1850s,about_wascoveredbyforestintheUSA.thirdthirdthirdsisher_birthday,Ithink.twentiethtwenty's_isTeachers'Day.tententhten'sare_childreninthecountryschool.thousandfivehundreda