英語語法數(shù)詞專項(xiàng)訓(xùn)練題庫數(shù)詞是英語語法體系中用以表示數(shù)量、順序、比例等概念的重要詞匯類別。準(zhǔn)確理解和運(yùn)用數(shù)詞，不僅是日常交流的基礎(chǔ)，也是各類英語考試的?？贾R點(diǎn)。本專項(xiàng)訓(xùn)練題庫旨在幫助學(xué)習(xí)者系統(tǒng)梳理數(shù)詞的核心用法，通過針對性練習(xí)鞏固記憶，提升在語境中靈活運(yùn)用數(shù)詞的能力。一、基數(shù)詞(CardinalNumbers)基數(shù)詞是表示數(shù)量多少的數(shù)詞，是數(shù)詞體系的基礎(chǔ)。（一）基數(shù)詞的構(gòu)成與基本用法1.1-12：這是英語基數(shù)詞中最基礎(chǔ)的部分，需單獨(dú)記憶，如one,two,three,...,twelve。2.13-19：多以-teen結(jié)尾，注意thirteen,fifteen,eighteen的拼寫特殊性。3.20-90整十?dāng)?shù)：多以-ty結(jié)尾，注意twenty,thirty,forty,fifty,eighty的拼寫特殊性。4.21-99非整十?dāng)?shù)：由“整十?dāng)?shù)+連字符+個(gè)位數(shù)”構(gòu)成，如twenty-one,forty-five。5.____：由“百位數(shù)+hundred+(and+兩位數(shù)或個(gè)位數(shù))”構(gòu)成。其中，and在英式英語中較為常用，美式英語中有時(shí)可省略。如onehundred(and)fifty-three,twohundred(and)seven。6.1000以上：thousand(千),million(百萬),billion(十億)等單位構(gòu)成。注意這些單位詞前有具體數(shù)字時(shí)，本身不用復(fù)數(shù)形式。例如：twothousandpeople,fivemilliondollars。若表示不確定的泛指數(shù)量，則常用復(fù)數(shù)形式并接of，如thousandsofbooks,millionsofstars。（二）基數(shù)詞的專項(xiàng)練習(xí)Exercise1:單項(xiàng)選擇1.Thereare______daysinaweek.A.sevenB.seventhC.thesevenD.theseventh2.Mybrotherbought______newbooksyesterday.A.threeB.thirdC.thethreeD.thethird3.About______studentsattendedthelecture.A.twohundredB.twohundredsC.twohundredofD.twohundredsofExercise2:填空2.Thisbuildinghas______(15)floors.3.Thepopulationofthattownisover______(10,000).(請用正確的英文數(shù)詞表達(dá))二、序數(shù)詞(OrdinalNumbers)序數(shù)詞表示人或事物的順序，通常與定冠詞the連用。（一）序數(shù)詞的構(gòu)成與基本用法1.1-19：除first,second,third,fifth,eighth,ninth,twelfth為特殊形式外，其余多由相應(yīng)基數(shù)詞加-th構(gòu)成。如fourth,sixth,seventh,tenth,eleventh,thirteenth。2.20-90整十?dāng)?shù)：將基數(shù)詞詞尾的-y改為-ieth。如twentieth,thirtieth,fortieth。3.21及以上的非整十序數(shù)詞：由“整十序數(shù)詞+連字符+個(gè)位序數(shù)詞”構(gòu)成。如twenty-first,thirty-fifth,forty-second。4.用法：序數(shù)詞主要用作定語，前面通常加定冠詞the；也可作表語、主語或賓語。例如：*ThisisthefirsttimeI'vebeenhere.(定語)*Thesecondisbetterthanthefirst.(主語)（二）序數(shù)詞的專項(xiàng)練習(xí)Exercise3:單項(xiàng)選擇1.Thisismy______visittoBeijing.A.oneB.firstC.theoneD.thefirst2.Februaryisthe______monthoftheyear.A.twoB.secondC.twothD.2th3.Hefinished______intherace.A.threeB.thirdlyC.thethirdD.athirdExercise4:用括號內(nèi)基數(shù)詞的適當(dāng)序數(shù)詞形式填空1.Todayismy(12)______birthday.2.Shelivesonthe(5)______floor.3.(3)______time'sthecharm,theysay.三、分?jǐn)?shù)與小數(shù)(FractionsandDecimals)分?jǐn)?shù)和小數(shù)在英語中有著特定的表達(dá)方式。（一）分?jǐn)?shù)的表達(dá)1.一般分?jǐn)?shù)：由“基數(shù)詞(分子)+ordinalnumber(分母)”構(gòu)成。分子大于1時(shí)，分母用復(fù)數(shù)。*1/3:onethird*2/5:twofifths*1/2:a(one)half(較為常用)*1/4:a(one)quarter(較為常用)2.帶整數(shù)的分?jǐn)?shù)（帶分?jǐn)?shù)）：由“整數(shù)+and+分?jǐn)?shù)”構(gòu)成。*21/3:twoandonethird*53/4:fiveandthreequarters（二）小數(shù)的表達(dá)小數(shù)的表達(dá)相對直接，小數(shù)點(diǎn)讀作"point"，小數(shù)點(diǎn)后的數(shù)字逐個(gè)讀出。*0.5:zeropointfive/pointfive*1.23:onepointtwothree*3.1415:threepointonefouronefive（三）分?jǐn)?shù)與小數(shù)專項(xiàng)練習(xí)Exercise5:將下列分?jǐn)?shù)或小數(shù)用英語表達(dá)出來1.3/42.5/83.1.754.0.03Exercise6:根據(jù)英文提示寫出相應(yīng)的分?jǐn)?shù)或小數(shù)1.threeeighths:______2.fourandahalf:______3.zeropointsixeight:______四、倍數(shù)表達(dá)(ExpressingMultiples)英語中倍數(shù)的表達(dá)有多種常用結(jié)構(gòu)。（一）常見倍數(shù)表達(dá)法1.A+be+倍數(shù)+as+形容詞/副詞原級+as+B(A是B的多少倍)*Thisroomistwiceaslargeasthatone.2.A+be+倍數(shù)+形容詞/副詞比較級+than+B(A比B大/長/高等多少倍)*Thisropeisthreetimeslongerthanthatone.(注意：此結(jié)構(gòu)在不同語境下可能有歧義，建議優(yōu)先使用第一種結(jié)構(gòu)表達(dá)明確倍數(shù))3.A+be+倍數(shù)+the+名詞(size/length/width/height等)+of+B(A的大小/長度/寬度/高度等是B的多少倍)*Thenewbuildingisfourtimestheheightoftheoldone.（二）倍數(shù)表達(dá)專項(xiàng)練習(xí)Exercise7:用括號內(nèi)所給數(shù)字的適當(dāng)倍數(shù)形式填空1.Thepopulationofthiscityisnow______(two)whatitwastenyearsago.(這座城市的人口現(xiàn)在是十年前的兩倍。)2.Thisbridgeis______(three)aslongastheonewebuiltlastyear.Exercise8:選擇最佳答案填空1.About______oftheearth'ssurfaceiscoveredwithwater.A.twothirdB.twothirdsC.secondthirdsD.twothree2.Mysalaryisnow______itwasfiveyearsago.A.threetimesasmuchasB.threetimesmuchasC.asthreetimesmuchasD.threetimesmorethan(注：此處考察常用結(jié)構(gòu))A.thethirdB.threeC.thirdlyD.thethreeExercise9:改錯(下列句子中數(shù)詞用法有錯誤，請找出并改正)1.Ihavetwodozenseggs.2.Sheismythesecondsister.3.Theboxweighspointsevenfivekilograms.---參考答案與解析(AnswerKeywithExplanations)Exercise1:單項(xiàng)選擇1.A(基數(shù)詞seven表示數(shù)量)2.A(基數(shù)詞three修飾可數(shù)名詞復(fù)數(shù)books)3.A(hundred前有具體數(shù)字two，用單數(shù)形式，且不接of)Exercise2:填空1.threehundredandsixty-five(注意百位數(shù)與十位數(shù)之間加and，美式可省略)2.fifteen3.tenthousand(thousand前有具體數(shù)字ten，用單數(shù))Exercise3:單項(xiàng)選擇1.B(序數(shù)詞first表示順序，前面有形容詞性物主代詞my，故不加the)2.B(February是一年中的第二個(gè)月，用序數(shù)詞second)3.C(序數(shù)詞third表示“第三名”，前面通常加the)Exercise4:用括號內(nèi)基數(shù)詞的適當(dāng)序數(shù)詞形式填空1.twelfth2.fifth3.ThirdExercise5:將下列分?jǐn)?shù)或小數(shù)用英語表達(dá)出來1.threequarters/threefourths2.fiveeighths3.onepointsevenfive4.zeropointzerothree/pointzerothreeExercise6:根據(jù)英文提示寫出相應(yīng)的分?jǐn)?shù)或小數(shù)1.3/82.4.53.0.68Exercise7:用括號內(nèi)所給數(shù)字的適當(dāng)倍數(shù)形式填空1.twice(倍數(shù)+what從句，表示“是……的多少倍”)2.threetimes3.fivetimes(increasebyfivetimes表示“增加了五倍”，即變?yōu)樵瓉淼牧?；此處題目括號內(nèi)提示為“五”，按題目要求填寫)Exercise8:選擇最佳答案填空1.B(分子three大于一，分母third用復(fù)數(shù)fifths)2.A(倍數(shù)表達(dá)的標(biāo)準(zhǔn)結(jié)構(gòu)"倍數(shù)+as+原級+as")3.A(序數(shù)詞前加the，表示“第三名”)Exercise9:改錯1.Ihavetwodozeneggs.(dozen前有具體數(shù)字two，用單數(shù)形式)2.Sheismysecondsister.(物主代詞my與定冠詞the不可同時(shí)修飾名詞)3.Theboxweighszeropointsevenfivekilograms/pointsevenfivekilograms.(小數(shù)表達(dá)，zero可省略，但加上更清晰)學(xué)習(xí)建議(Study