2023年江西中考英语复习 专题四　数词课件(共32张PPT)

(共32张PPT)
专题四　数　词
知识导图
江西省中考八年命题规律及趋势
中考预测
分析江西近八年中考真题可知，在单项填空、完形填空中没有涉及对数词的考查，但在听力部分主要考查数词的基本用法和读法，如对时刻、数字计算和电话号码的考查。
基数词和序数词的相互转换
[考点剖析]
one—first ten—tenth nineteen—nineteenth
two—second eleven—eleventh twenty—twentieth
three—third twelve—twelfth thirty—thirtieth
four—fourth thirteen—thirteenth forty—fortieth
five—fifth fourteen—fourteenth fifty—fiftieth
six—sixth fifteen—fifteenth sixty—sixtieth
seven—seventh sixteen—sixteenth seventy—seventieth
eight—eighth seventeen—seventeenth eighty—eightieth
nine—ninth eighteen—eighteenth ninety—ninetieth
基数词词形变换口诀
基变序，有规律，末尾加上th；
一二三，特殊记，八减t，九去e，f要把ve替，
以y结尾变ie，后跟th莫忘记；
若想表示几十几，只变个位就可以。
基数词和序数词的用法
[考点剖析]
一、序数词前必须加the
The second is what I really need.
第二个是我真正需要的。
二、序数词前若有限定词，则不用加the
It is my third time to visit Beijing.
这是我第三次来北京参观。
三、序数词前面也可以加不定冠词a或an，表示“又一；再”，内含顺序性
We've tried it three times.Must we try it a fourth time？
我们已经试过三遍了。必须要再试一次吗？
[考点抢测]
1．(2021·乐山改编)—Our school is going to hold the Culture Festival.
—I see.And we can take part in the activity again.
A．five　　　　　　　　　 B．fifth
C．fifths D．fiveth
B
2．(2021·恩施改编)My aunt has only one child, and she wants
child.
A．the second B．a second
C．two D．two second
B
概数词的用法
[考点剖析]
一、和具体数字连用
hundred、thousand、million、billion、dozen和具体的数字one、two...或several、some、many等连用时，要用单数形式。
five hundred people 500个人
two thousand books两千本书
several million trees几百万棵树
二、与of连用
与of连用时，要用复数形式，但前面不能再加数字，如thousands of factories成千上万家工厂。
[考点抢测]
teenagers went to the university to listen to the speech.
A．Thousand of; 120 minutes
B．Thousands of; 120 minutes
C．Two thousands; 120 minutes
D．Two thousand; 120 minute
D
数词的其他常见表达
[考点剖析]
一、编号表示法
名词＋基数词＝the＋序数词＋名词。
Lesson One＝the first lesson　第一课
有时可以直接用数字来表示。
Room 206　206房间
二、世纪表示法
通常为“定冠词＋序数词＋世纪(century)”，也可为“定冠词＋百位进数＋s”。
the sixth (6th) century　公元6世纪
三、年代表示法
1．用“in＋the＋年代＋s”表示“在……世纪……年代”；若表示早期、中期、晚期时，可在定冠词前添加early、mid 、late，如in the 1960s在20世纪60年代。
2．用“in＋one's＋整十的复数”表示“在某人……多岁时”，如in her twenties在她20多岁时。
四、年、月、日表示法
通常英式英语表达顺序为“日、月、年”，而美式英语表达为“月、日、年”。一般“年份”用基数词(可简写)，“日期”用序数词，读时前面加定冠词the。
on May 5th,2015　在2015年5月5日
五、数词的其他重要表示法
1．表示在一定基础上增加一定的数量，用“another＋基数词＋名词复数＝基数词＋more＋名词复数”。
We need another two chairs.＝We need two more chairs.我们还需要两把椅子。
2．表示计量时，用“基数词＋度量单位＋形容词(long/wide/ deep/high...)”。
He is 1.91 meters tall.他的身高是1.91米。
3．“基数词＋连字符＋名词(＋形容词)”作定语，名词用单数形式。
a fifteen year old boy　一个15岁的男孩
a five year plan　一个五年计划
ten minute walk＝ten minutes' walk　步行十分钟的路程
六、分数的用法
分数由基数词和序数词构成：分子用基数词，分母用序数词；分子大于1时，分母加 s；分母和分子之间可以用连字符，也可以不用；分数常与of短语连用，在句中作主语或宾语。
[考点抢测]
1．(2021·达州)My mother will be years old next week.I'm planning to buy a gift for her birthday.
A．fourty; fourtieth B．forty; fortieth
C．fourty; fortieth D．forty; fourtieth
B
2．—Has Donnie finished reading the novel
—Not yet.There still of it left.
A．is; three fifths
B．are; three fifth
C．is; third fifths
D．are; three fifths
A
单项填空
1．(2021·铜仁)There are floors in this building.He lives on the floor.
A．thirty; nine　　　　　 B．thirtieth; nine
C．thirtieth; ninth D．thirty; ninth
D
2．(2021·北部湾经济区改编)China's National Day comes in October, the month of the year.
A．ten B．tenth
C．eleven D．eleventh
B
3．(2021·绥化改编)My aunt became a nurse in her and she still loves her job now.
A．twenty B．twelve
C．twenties D．twentieth
C
4．None can run faster than Luke.He is always the to get to the finishing line.
A．one B．first
C．second D．two
B
5．Every year， books are given away to the poor children in the countryside.
A．thousands of B．thousand
C．thousands D．thousand of
A
6．Now it is half past .There are thirty minutes for us to go to school as our class starts at eight o'clock.
A．eight B．eighth
C．seven D．seventh
C
7．There are two workers in the factory, who leave home to find jobs in this city.
A．hundreds of B．hundred of
C．hundreds D．hundred
D
8．The boy learned to play the violin at the age of ，and he had joined in different kinds of competitions.
A．five B．fifth
C．the fifth D．the five
A
9．My younger sister is fourteen years old now.Next year she is going to celebrate her birthday.
A．thirteen B．thirteenth
C．fifteen D．fifteenth
D
10．I'm writing my (six) poem now.I want to be a poet in the future.
11．To finish the task, we've tried three times, and after dinner we'll have a (four) try.
sixth
fourth