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1、綿陽專版 PART TWO第二篇 語法突破篇語法專題（四）數(shù)詞 【中考考點】(1)數(shù)詞的構(gòu)成。(2)數(shù)詞的表達(dá)方式及用法。 1.基數(shù)詞的構(gòu)成1.基數(shù)詞的構(gòu)成(1)012單獨記。如: zero, one, two, three等。(2)1319是在個位數(shù)后加-teen。如:fourteen, seventeen等,但13thirteen,15fifteen,18eighteen需要特殊記。(3)20以上的整十的基數(shù)詞均以-ty結(jié)尾。如:20twenty,30thirty,40forty,50fifty,80eighty等。(4)“幾十幾”要加連字符號“-”。如:48forty-eight, 97

2、ninety-seven等?？键c一數(shù)詞的構(gòu)成 (5)“幾百幾十”或者“幾百幾十幾”在“百”后加and。如:156one hundred and fifty-six, 509five hundred and nine等。(6)四位數(shù)或者四位數(shù)以上的基數(shù)詞的拼寫規(guī)律:從右往左每三位加一個逗號,第一個逗號讀作thousand(千),第二個逗號讀作million(百萬),第三個逗號讀作billion(十億),hundred后莫忘“and”。如:3,610three thousand six hundred and ten; 94,295ninety-four thousand two hundred

3、and ninety-five;274,350two hundred and seventy-four thousand three hundred and fifty等。 2.序數(shù)詞的構(gòu)成(1)“第一”、“第二”、“第三”分別是 first, second, third。(2)“第四”到“第十九”除fifth, eighth, ninth, twelfth外,其余的都在相應(yīng)基數(shù)詞后面加“-th”構(gòu)成。如:fourth。(3)20以上的整十的序數(shù)詞由相應(yīng)的基數(shù)詞變y為i,再加“-eth”。如:thirtythirtieth; fiftyfiftieth。(4)第一百hundredth; 第一千

4、thousandth; 第一百萬millionth。(5)20以上的非整十的基數(shù)詞變序數(shù)詞時,只變化個位數(shù)。如:twenty-onetwenty-first; one hundred and oneone hundred and first。 【巧學(xué)妙記】 基變序,有規(guī)律,一、二、三特殊記 (first, second, third),八加h,九去e,ve要用f替,整十變y為ie,末尾-th莫忘記, 若想表示第幾十幾,只變個位就可以。 考點二數(shù)詞的表達(dá)方式 March 12（th）, 20172017年3月12日one third 三分之一two thirds 三分之二five (oclock

5、) 5點鐘 five past seven 7點5分twenty to eight 7點40分Page 62/the sixty-second page 第62頁in the 1970s 在20世紀(jì)70年代 in his forties 在他四十多歲時 1.hundred, thousand, million前有基數(shù)詞修飾時,表示確數(shù),其后不加“-s”,也不與of連用;但若用于表示“數(shù)百、數(shù)千、數(shù)百萬、數(shù)十億”這樣的概數(shù)時,后面則加“-s”,并與of連用。There are two hundred people in the meeting.會上有200人。Thousands of peopl

6、e go to the beach every year.每年成千上萬的人到海濱去。Millions of people in the world are sending and receiving e-mails every day.每天,世界上有數(shù)百萬人在收發(fā)郵件。2.序數(shù)詞前加不定冠詞a,表示“再一,又一”。Ill have to do it a second time.我必須再做一次。(已經(jīng)做過一次)考點三數(shù)詞的注意事項 3.其他重要表達(dá)方式:(1)half an hour 半個小時(2)one and a half years=one year and a half 一年半(3)in

7、 ones thirties在某人三十多歲時(區(qū)別:in the thirties在30年代)(4)two more hours =another two hours 再多兩個小時 考點過關(guān)訓(xùn)練.用括號中所給單詞的適當(dāng)形式填空1.My (one) name is Linda. What about yours? 2.Today is the boys (twelve) birthday. He is 12 years old. 3.On my sisters (nine) birthday, I gave her a useful book. 4. (hundred) of people co

8、me here to relax every day. 5.Three (four) of the students in our class like basketball. 6.Linda won the (two) prize in the singing competition. 7.Linlin is (five) years old;today is her (five) birthday. 8.In the (eight) picture, you can see many young trees. 9.My grandparents live in an old apartme

9、nt with (four) floors and they are on the (three) floor. 10.The lady became very famous in her (forty). Hundreds twelfthninthfirst fifthsecondfivefourths forties four third eighth 考點過關(guān)訓(xùn)練.根據(jù)句意及漢語提示完成句子11.Amy will be an elder sister.Her parents are going to have the (第二) child. 12. (五分之二) of the land in that town is covered with trees and grass. 13.Children usually attend primary school at the age of (六) in China. 14.I hear youve got a “l(fā)ibrary” at home.Yes.Ive already had (數(shù)以百計的) books. 15.Today is Marys (二十一歲) birthday. secondTwo fifths sixhundreds oftwenty-first