2022年中考英语二轮专题复习：专题4 数词 课件(共40张PPT)

(共40张PPT)
第一模块　语法专题突破
专题四　数词
考点聚焦
1．概念
基数词：表示数目或数量多少的词叫基数词。
考点
基数词
2．基数词的构成
1000以下的基数词 构成 举例
1－12 没有规律，单独记忆 one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve
13－19 以-teen结尾 thirteen，fourteen，fifteen，sixteen，seventeen，eighteen，nineteen
1000以下的基数词 构成 举例
20－90 第十位数的整数 以-ty结尾 twenty, thirty, forty, fifty, sixty, seventy, eighty, ninety
21－99 十位和个位之间加“-” twenty-one, thirty-two, ninety-nine
101－999 百位后加and，十位和个位之间加“-” nine hundred and twenty-five(925)
3．基数词的特殊表达
(1)注意thirteen，fifteen，twenty，thirty，forty，fifty的拼写；
(2)大于1000的表达：从右往左数，每三位数加个逗号，第一个逗号加thousand，第二个逗号加million，第三个逗号加billion。如：two hundred and forty-six billion (246,000,000,000)。
4．基数词的语法功能
5．基数词的用法
(1)基数词的时间表达法
时间 顺读法 逆读法
7:00 seven (o’clock) /
8:10 eight ten ten past eight
9:15 nine fifteen fifteen/a quarter past nine
10:30 ten thirty thirty/half past ten
时间 顺读法 逆读法
11:40 eleven forty twenty to twelve
说明 ①顺读法：小时＋分钟，整点后可加o’clock。 ②逆读法：分钟(少于30分钟)＋past＋小时；差的分钟(多于30分钟)＋to＋(多加一)小时；一刻钟可用a quarter，半小时可用half表示。 (2)基数词的其他用法
(　　)1． It’s never too old to learn.Karl Marx began to learn English in his __________.
A．the fiftieth　 B．fiftieth　　　　
C．fifty　　　　　 D．fifties
备考演练
D　
(　　)2．After the Asian Games, __________ people came to Guangzhou for a visit during holidays.
A．thousand B．thousands of
C．five thousands D．five thousands of
(　　)3．A war took place in __________.
A．the 1720s B．1720s
C．1720’s D．the 1720
B　
A　
1．概念
序数词：表示数目顺序的词叫序数词。
考点
序数词
2．序数词的构成
序数词 构成规则 举例
1－3 没有规律，单独记忆 first, second, third
4－19 在原基数词后加-th fourth, fifth, sixth, seventh, eighth, ninth, tenth, eleventh, twelfth, thirteenth, fifteenth, eighteenth, nineteenth
序数词 构成规则 举例
20－90 把原基数词末尾的-y 变ie加-th twentieth, thirtieth, fortieth, fiftieth, sixtieth, seventieth, eightieth, ninetieth
百，千，百万…… 直接在原基数词后加-th hundredth, thousandth, millionth, billionth
多位数 只需把个位数变为序数词 twenty-first
3．基数词变序数词歌诀
基变序，有规律，词尾加上-th (如fourth, sixth)；一、二、三，特殊例，结尾字母t, d, d (如first, second, third)；八去t，九去e (如eighth, ninth)，ve要用f替 (fifth, twelfth)；-ty将y改成i，-th前面有个e，如：thirty(三十)→thirtieth (第三十)；若是碰到几十几，前用基来后用序，如：twenty-first。
4．序数词的用法
(　　)4．—How was your weekend
—Great! It was my grandfather’s __________ birthday. We enjoyed ourselves.
A．seventy B．seventieth
C．the seventieth D．seventeenth
备考演练
B　
(　　)5．This is Mr.White’s __________ visit to Beijing. He has been there twice before.
A．two B．second
C．three D．third
D　
1．基数词和序数词一览表
考点
基数词和序数词
基数词 序数词及缩写 基数词 序数词及缩写
one first/1st eleven eleventh/11th
two second/2nd twelve twelfth/12th
three third/3rd thirteen thirteenth/13th
four fourth/4th fourteen fourteenth/14th
基数词 序数词及缩写 基数词 序数词及缩写
five fifth/5th fifteen fifteenth/15th
six sixth/6th sixteen sixteenth/16th
seven seventh/7th seventeen seventeenth/17th
eight eighth/8th eighteen eighteenth/18th
nine ninth/9th nineteen nineteenth/19th
ten tenth/10th twenty twentieth/20th
2．基数词和序数词的混合用法
(　　)6．—Excuse me, sir. Here’s a package for Lin Tao. Which room does he live in
—__________.
A．308 Room B．Room 308
C．The Room 308 D．The 308 Room
备考演练
B　
(　　)7．There are __________ months in a year. October is the __________ month.
A．twelve; ten B．twelfth; tenth
C．twelve; tenth D．twelfth; ten
(　　)8．Today is my little brother’s __________ birthday, so I put __________ candles in the cake.
A．eight; eighth B．eighth; eight
C．eight; eight D．eighth; eighth
C　
B　
(　　)9．There are fifty students in this class, ________ of them are boys, so the number of the boys is 30．
A．three fifth　 B．three fifths
C．three five D．third fifths
B　
※易混淆考点分析
Ⅰ.概数词误用
注意hundred, thousand, million 等与具体数字和非具体数字连用时的使用规则。
(　　)1．It is reported that there are more than 300 __________ smokers in China, nearly a third of all the smokers in the world.
A．million B．millions
C．million of D．millions of
A　
(　　)2．__________ foreigners visit the Great Wall of China every year.
A．Thousand B．Thousands
C．A thousand of D．Thousands of
D　
Ⅱ.分数误用
注意分子、分母的表达方式以及分数作主语时谓语动词的单复数。
(　　)3．About __________ of the students __________ keeping diaries in English in our class.
A．two fifth；like B．two fifths；like
C．second five；likes D．two five；like
B　
(　　)4．—Jack, __________ of the oranges __________ gone bad.
—We’d better eat up the rest as soon as possible.
A．one fifth；have B．one fifth；has
C．one fifths；have D．first five；has
A　
真题再现
他山之石
(　　)1．(2020苏州)Tony’s mum looks young and beautiful. It’s hard to imagine she is already in her ________.
A．fifties B．fifty
C．fiftieths D．fiftieth
A　
(　　)2．(2020四川)—Plenty of people went to America in __________.
—So they did.My grandfather was one of them.He went there in his __________.
A．1990s; thirties　　 B．1990s; thirty
C．the 1990s; thirtieth　　 D．the 1990s; thirties
D　
(　　)3．(2020重庆B卷)Teachers’ Day is in September, the __________ month of the year.
A．nine B．ninth
C．ten D．tenth
(　　)4．(2021甘肃)—What’s twenty and fifty
—It’s __________.
A．fifty B．seventy
C．eighty D．ninety
B　
B　
模拟提升
A．语法选择基础练
(　　)1．(原创)My father is forty years old.Today is his __________ birthday.
A．fourteen B．forties
C．fourteenth D．fortieth
D　
(　　)2．(原创)Give me __________ candles, please.I am fifteen not thirteen.
A．two more B．second
C．another three D．two another
(　　)3．(原创)Nowadays, a number of people like HUAWEI phones better, and about __________ of them are adults.
A．four fifths B．a four-fifth
C．four fifth D．four five
A　
A　
(　　)4．(原创)Among all these books, __________ of them are for children to read.
A three fifth B．three fifths
C．one fifths D．two fifth
(　　)5．(原创)I think Hangzhou is the most beautiful city.I have ever been there once and I’ll come for ______ time.
A．a fourth B．a two
C．the two D．a second
B　
D　
B．语法选择专练
(原创)It is our motherland’s 70th birthday. __1__ people come to Tian’anmen Square and sing the song My Country And I．When I see a __2__ girl singing the song with a national flag waving in her hand on TV, I am moved.
I went to Beijing __3__ years ago.That was my __4__ time to go there.I still remember eating __5__ Qingfeng burgers after trying one. In Beijing, I also visited Beijing Hutong.It was about __6__ walk. It was so special. I enjoyed the beautiful scenery and historical places by subway.I also enjoyed Beijing Duck and Beijing Opera.
Before I returned home, I spent __7__ of my money buying some souvenirs for my friends.When I arrived at Guangzhou Baiyun Airport at __8__， my friends picked me up by car. It took us less than half an hour to get home.When I got back home, it had been 2:30 a.m.
Today, I am enjoying the celebration ceremony on TV.I can’t help thinking of my unforgettable trip. When I hear the song, I want to go to Beijing __9__ time.I want to join in the happiness ocean. Happy our motherland’s __10__birthday! I love you forever!
(　　)1．A．Thousands　　 B．Several thousands　　
C．Thousands of D．two thousands
(　　)2．A．two years old B．two-year-old
C．two-years-old D．two-year-olds
C　
B　
(　　)3．A．ten B．tenth
C．tens D．ten-year
(　　)4．A．one B．once
C．first D．the first
(　　)5．A．more two B．another twice
C．two more D．two another
(　　)6．A．twenty minutes B．twenty minute
C．twenty-minutes D．twenty minutes’
A　
C　
C　
D　
(　　)7．A．three fourths B．three fourth
C．three quarter D．third fourth
(　　)8．A．two to two B．fifty-eight past two
C．fifty-eight two D．two fifty
(　　)9．A．two B．a second
C．the second D．twice
(　　)10．A．seventy B．seventieth
C．the seventieth D．seventies
A　
A　
B　
B