人教版中考英語(yǔ)復(fù)習(xí)數(shù)詞的用法 學(xué)案

1、課題： 數(shù)詞課時(shí)：2學(xué)生： 授課老師：教學(xué)目標(biāo)數(shù)詞的用法重點(diǎn)難點(diǎn)序數(shù)詞數(shù)詞基數(shù)詞191119整十幾十幾o(hù)neelevententwotwelvetwentytwenty-onethreethirteenthirtythirty-threefourfourteenfortyforty-fourfivefifteenfiftyfifty-fivesixsixteensixtysixty-sixsevenseventeenseventyseventy-seveneighteighteeneightyeighty-eightninenineteenninetyninety-nine基數(shù)詞的讀法（1）在

2、讀三位數(shù)或三位數(shù)以上的基數(shù)詞時(shí)，需在十位數(shù)之前（若十位數(shù)是“0”，在個(gè)位前）加連詞and。304-three hundred and four1,342-one thousand three hundred and forty-two（2）阿拉伯?dāng)?shù)字每三位數(shù)就需用一個(gè)逗號(hào)隔開(kāi)，從后往前數(shù)；所用的英語(yǔ)單詞為：thousand, million, billion，英語(yǔ)中沒(méi)有“萬(wàn)”和“億”，在表示“萬(wàn)”和“億”時(shí)要按十進(jìn)位法來(lái)推算。1萬(wàn)可用10千來(lái)表示，即10,000100,000,000可寫成a hundred million序數(shù)詞（1）第一至第十第十一至第二十第二十一至第三十第整十至第一百fir

3、steleventhtwenty-firstsecondtwelfthtwenty-secondthirdthirteenthtwenty-thirdfourthfourteenthtwenty-fourthfortiethfifthfifteentwenty-fifthfiftiethsixthsixteenthtwenty-sixthsixtiethseventhseventeenthtwenty-seventhseventietheightheighteenthtwenty-eightheightiethninthnineteenthtwenty-ninthninetiethtentht

4、wentieththirtiethhundredth助記歌基變序，有規(guī)律，末尾加上th；一二三特殊記，詞尾分別t，d，d；八加h，九去e，ve要用f替；以y結(jié)尾變ie，后跟th莫忘記；若想表示幾十幾，只變個(gè)位就可以（2）序數(shù)詞的基本用法基本概念基本用法例子序數(shù)詞（表示數(shù)目的順序或事物的位置）表示編號(hào)Mary sits in the second row.表示日期It happened on October the third, 1985.主要用作定語(yǔ)、標(biāo)語(yǔ)，前面要加定冠詞theThe fifth lesson s very easy to learn.數(shù)詞常見(jiàn)的表達(dá)法年代的表達(dá)法in the

5、1930s/1930s日期表達(dá)法（年份用基數(shù)詞，日期用序數(shù)詞）1988年5月1日：寫作：May 1st, 1988，讀作：May the first, nineteenth eighty-eight或1st May, 1988，讀作：the first of May, nineteenth eighty-eight分?jǐn)?shù)的表達(dá)法分?jǐn)?shù)在英語(yǔ)中通常是借助基數(shù)詞和序數(shù)詞來(lái)共同表達(dá)的，其中基數(shù)詞表示分子，序數(shù)詞表示墳?zāi)?。?dāng)分子大于1時(shí)，墳?zāi)挂脧?fù)數(shù)形式。one third三分之一two thirds三分之二a/ one quarter四分之一three and one fourth三又四分之一小數(shù)的表達(dá)

6、法小數(shù)用基數(shù)詞來(lái)表示，以小數(shù)點(diǎn)為界，小數(shù)點(diǎn)左邊的數(shù)字為一個(gè)單位，表示整數(shù)，數(shù)字合起來(lái)讀；小數(shù)點(diǎn)右邊的數(shù)字為一個(gè)單位，表示小數(shù)，數(shù)字分開(kāi)來(lái)讀；小數(shù)點(diǎn)讀作point，0讀作zero或o；整數(shù)部分為零時(shí)，可以省略不讀。0.4-zero point four/point four10.23-ten point two three百分?jǐn)?shù)的表達(dá)法百分?jǐn)?shù)用基數(shù)詞+percent表示0.68%-zero point six eight percent6%- six percent倍數(shù)的表達(dá)法表示兩倍的用twice，表示三或三以上的倍數(shù)用基數(shù)詞+times。The room is twice as large

7、as that one.This tree is three times as tall as that one.易混易錯(cuò)1. 數(shù)詞和冠詞的關(guān)系序數(shù)詞前要加定冠詞the；但基數(shù)詞前不加冠詞a/an+序數(shù)詞，表示“又一，再一”of the+基數(shù)詞，表示范圍序數(shù)詞前已有指示代詞、物主代詞或every時(shí)，不用定冠詞。在一些由序數(shù)詞構(gòu)成的固定詞組中不用定冠詞2. 數(shù)詞的讀法從后往前數(shù)，每三位加一個(gè)逗號(hào)；第一個(gè)逗號(hào)前讀hundred，第二個(gè)逗號(hào)前讀million，第三個(gè)逗號(hào)前讀billion。年份的讀法是兩位兩位地讀。3. 基數(shù)詞與單數(shù)名詞用連字符鏈接構(gòu)成符合形容詞，作名詞的定語(yǔ)。4.幾個(gè)半的讀法基數(shù)詞

8、+and+ a half+名詞復(fù)數(shù)=基數(shù)詞+名詞（單數(shù)/復(fù)數(shù)）+and+ a halftwo and a half hours = two hours and a half5. 與another, more 連用時(shí)，表示在已有的基礎(chǔ)上再增加一定的數(shù)量，其結(jié)構(gòu)為“another+基數(shù)詞”或“基數(shù)詞+more”My father will stay in Beijing for another two weeks.I need two more chairs.6. 表示編號(hào)時(shí)的易混之處用基數(shù)詞來(lái)表示編號(hào)時(shí)，應(yīng)放在名詞之后，且不需要任何冠詞（但通常名詞第一個(gè)字母要大寫）用序數(shù)詞來(lái)表示編號(hào)時(shí)，應(yīng)放在名

9、詞之前，且前面需要加定冠詞the習(xí)題（一）Yesterday _ people came to the town to watch the car race.A. hundreds B. hundred C. hundreds of D. hundred of2. Tree Planting Day is in March, the _ month of the year.A. three B. third C. five D. fifth3. Mum, the beautiful card I made last night is just for your _ birthday.-Oh,

10、thank you, my dear!A. forty B. the fortieth C. fortieth D, fourth4. May is the _ month of a year.A. fifty B. fifteen C. fifth D. five5. I heard your friend is visiting Sanya again. Is it the second time for him?-Yes, and he will come for _ time next spring.A. a third B. a second C. a third6. A _ gir

11、l looked after her disabled father.A. three-year-old B. three-years-old C. three year old7. Mothers Day is on the _ Sunday in May every year.A. two B. second C. six D. sixth8. Excuse me, sir. Heres a package for Lin Tao. Which room does he lives in?-_.A. 308 Room B. Room 308 C. The Room 308 D. The 308 Room9. How far away is the small village from Moscow?-its about _ kilometer.A. seven hundred and twenty twoB. seven hundred and twenty-twoC. seven hundreds and twenty-twoD. seven hundreds and twenty-two10. There are sixty students in our class. And _ of us are