中考基數(shù)詞和序數(shù)詞易錯(cuò)點(diǎn)學(xué)案設(shè)計(jì)

1、基數(shù)詞一、考點(diǎn)分析：知識(shí)點(diǎn)：基數(shù)詞考查內(nèi)容：1) 讀法分組(從右往左，三個(gè)為一組，逗號(hào))單位(thousand ， million ， billion) 一逗千，二逗百萬，三逗十億讀 (從左往右，每組讀出來+單位)注意:百位后一定有and,各組之間不用加and,十位和個(gè)位之間要加連字符題目：讀電話號(hào)碼e.g. 15,996,273,844fifteen billion, nine hundred and ninety-six million, two hundred and seventy- three thousand, eight hundred and forty-foure.g. 25

2、0,025two hundred and fifty million and twenty-five2) 成百上千，成千上萬表達(dá)法有數(shù)無s,有of要加sthree hundred students 300 個(gè)學(xué)生three hundred of the students 學(xué)生中的 300 個(gè)hundreds of students 成百上千的學(xué)生3) 年齡表達(dá)“在某人幾十多歲的時(shí)候”in one s +整十的復(fù)數(shù)形式in my thirties 在我三十幾歲的時(shí)候in my teens 在我十幾歲4) 年代in the 1980s (1980 s )在 20 世紀(jì) 80 年代5) 頁碼房間號(hào)的

3、表達(dá)Page 20； Class One； Room 3056) 幾個(gè)半one and a half kilos= one kilo and a half、典型例題:例題 1 There are more than students in Grade 9 in my school. 2018-2019 南京一中 3 月 月考A. hundredsB. two hundredsC. hundred ofD. two hundred【答案】D【解析】這道題其實(shí)考察點(diǎn)很簡單，根據(jù)句意：在我的學(xué)校里，九年級(jí)的學(xué)生超過兩百個(gè)。這個(gè)時(shí)候直接利用口訣就能判斷出正確選項(xiàng)，“有數(shù)無s,有of要加s”，故選D。例

4、題 2 How do we read the number 40,392?2018-2019 南京一中 3 月月考A. four thousand three hundreds and ninety twoB. forty thousand three hundred and ninety-twoC. four and thousand three hundred and ninety twoD. forty thousand and three hundred and ninety-two【答案】B【解析】百位后一定有and,各組之間不用加and,十位和個(gè)位之間要加連字符，故選擇B。三、練習(xí)

5、鞏固：1. At night we can see stars in the sky.A. thousands and thousands ofB. thousand and thousands ofC. a thousand and thousandsD. thousand and thousand2. the citizens blocked the street, fighting against testing medicines on animals.A. Two thousandB. Two thousands C. Two thousands of D. Thousands of

6、3. 【原 文】 The “ Green " movement tries to get governments to protect the environment during 1970 to 1979.【表格句 The “ Green " movement tries to get governments to protect the 0nlmient in.4. Where are our teachers? Are they in?A. the room 809B. Room 809C. the 809 room D. 809 room5. Karl Max be

7、gan to study Russian It took him about six months to master it.A. at his fiftiesB. in the fiftyC. in his fiftiethD. in his fifties6. There are students in our school.A. four-hundred and forty-fiveB. four hundred and forty-fiveC. four hundreds and forty-fiveD. four hundred and forty five7.- Excuse me

8、, how many students are there in your art club?-There are.A. twelveB. twelfthC. the twelfthD. fifth8. The work is too hard for Mr. Zhou to finish in a week. He needs days.A. more twoB. two moreC. two anotherD. another more9. There are birds living on this island.A. billionB. billionsC. billion ofD.

9、billions of10.people attended the famous directorc orscerte wellA. HundredB. Hundred ofC. Hundreds of D. Five hundreds初一英語易錯(cuò)點(diǎn)：基數(shù)詞答案與解析1. A【解析】 成百上千、成千上萬表達(dá)法：有數(shù)無 s,有of要加s,故選A。2. D【解析】有數(shù)無s,有of要加s,成千上萬的公民，故選 D。3. 1970s( 1970 s )【解析】年代表達(dá)法：in the 1970s ( 1970 ') s在20世紀(jì)70年代。4.B【解析】這道題就是考察房間號(hào)的寫法， Room 房

10、間號(hào)，故選 B 。5. D【解析】在某人幾十歲的時(shí)候in one '整+復(fù)數(shù)，所以選 D。6. B【解析】百位后一定有and,各組之間不用加and,十位和個(gè)位之間要加連字符，故選擇B。7. A【解析】根據(jù)句意可以判斷出這里回答的是“有12 個(gè)”，所以用基數(shù)詞。故選 A 。8. B【解析】two more +名詞=another two+名詞，故選 B。9. D【解析】有數(shù)無s,有of要加s,故選D。10. C【解析】有數(shù)無s,有of要加s,故選Co序數(shù)詞一、考點(diǎn)分析：知識(shí)點(diǎn)：序數(shù)詞考查內(nèi)容：1）特殊序數(shù)詞的寫法第一first第二second第三third第四fourth釬四fourte

11、enth第四十fortieth第五fifth第八eighth釬二twelfth第九ninthnineteenth第九十ninetieth二十以上的非整十?dāng)?shù)：左邊基數(shù)，最后一位序數(shù)第 23 the twenty-third (the 23rd)2)分?jǐn)?shù)表達(dá)分子基數(shù)詞1分母序數(shù)詞+s1/2a half1/4a quarter3/4 three quarters; three fourths1%1 percente.g.2/5 two fifths3)the second time & a second timea +序數(shù)詞表示又，再”e.g. a second time=another t

12、ime二、典型例題：【例題 1 Jim, Mr. Greens(three) child, often works as a volunteer in the museum.2018-2019鼓樓區(qū)期中測試卷【答案】thirdthird ?！窘馕觥扛鶕?jù)句意：Jim是格林先生的第三個(gè)孩子，所以答案是【例題 2】Tomorrow is my father ，s(forty) birthday. I want to buy a cake for him. 2018-2019雨花臺(tái)中學(xué)期中測試卷【答案】fortieth【解析】根據(jù)句意：明天是我父親的第四十個(gè)生日，所以用序數(shù)詞fortieth o三、練

13、習(xí)鞏固：1. There are seasons in a year. Winter is season.A. fourth; the fourth B. four; the fourth C. fourth; fourD. four; the four2. About(五分之四)of the books in our school library(be) written in English.3. The number of the teachers in their school is about 200 and (四分之一)of them(be) women teachers.4. No

14、w let me have(第三次嘗試 ).5. (2/3) of his work(be) finished in his(50).6. This is time that I have visited Shanghai. I think Shanghai is wonderful. I will visitShanghai time in the future.A. the first; the second1. a first; a second7. Tuesday is day in a week.A. the secondB.second8. the first; a secondD

15、. a first; the secondC. thirdD. the third8. The Yellow River is river in China.A. the longerB. the longestC. the second longest D. longestA. twelve9. On my birthday, I got a guitar as a birthday present from my father.B. twelvethC. twelfthD. the twelfth10. Although I failed four times, my father enc

16、ouraged me to have a try.A. secondB. fifthC. thirdD. fourth序數(shù)詞答案與解析1.B【解析】句意：一年有四季，冬天是第四個(gè)季節(jié)。故選 B 。2. four fifths; are【解析】分子 基數(shù)詞1;分母 序數(shù)詞+s,所以五分之四是four fifths。the books是可數(shù)名詞復(fù)數(shù)，所以謂語動(dòng)詞用are。3. one fourth; are【解析】分子 基數(shù)詞1;分母 序數(shù)詞+s,所以四分之一是one fourth o them是可數(shù)名詞復(fù)數(shù)，所以謂語動(dòng)詞用are。4. the third try【解析】第三次嘗試是序數(shù)詞，“三”的序數(shù)詞third ，所以答案是the third try 。5. Two-thirds; was; fifties【解析】根據(jù)句意：他的三分之二的工作在他五十多歲的時(shí)候被完成了，可知整個(gè)句式是一般過去時(shí)，且 work不可數(shù)所以用 was。三分之二的表達(dá)方法：分子 基數(shù)詞1 ;分母序 數(shù)t+s,所以三分之二是 two-thirds。在某人幾十歲的時(shí)候in one&#