语法专题之基数词 （ppt课件） -2022新人教新目标版七年级上册《英语》.pptx

1、语法专题之基数词目录01课堂导入02知识梳理03课堂练习04课堂小结05课后作业01课堂导入课堂课堂导入导入知识梳理课堂练习课堂小结课后作业课堂导入英语国家都很忌讳数字13和黑色星期五，同学们，你们知道为什么？课堂导入thirteen传说耶稣受害前和弟子们共进了一次晚餐。参加晚餐的第13个人是耶稣的弟子犹大。就是这个犹大为了30块银元，把耶稣出卖给犹太教当局，致使耶稣受尽折磨。参加最后晚餐的是13个人，晚餐的日期恰逢13日，“13”给耶纸带来苦难和不幸。从此，“13”被认为是不幸的象征。“13”是背叛和出卖的同义词。课堂导入thirteen因为忌讳，西方人千方百计避免和“13”接触。在荷兰，人

2、们很难找到13号楼和13号的门牌。他们用“12A”取代了13号。在英国的剧场，你找不到13排和13座。法国人聪明，剧场的12排和14排之间通常是人行通道。此外，人们还忌讳13日出游，更忌讳13人同席就餐，13道菜更是不能接受了。课堂导入Friday很多西方人也忌讳“星期五”。圣经说，上帝创造了第一个男人-亚当后，从他身上取下一根肋骨又造了一个女人-夏娃。据说，亚当是在星期五被造出来的，他和夏娃吃禁果也在星期五，他俩死的日子也是星期五，亚当和夏娃的儿子该隐也是在“黑色星期五”杀死了他的弟弟亚伯。学习目标 结合书本上的知识点，初步了解数次的概念 结合生活实际，掌握数词的基本运用 熟练掌握中英文在数

3、字表达上的差异性，学会用英文表达数字 学习阅读方法，掌握阅读技巧，提高阅读速度02知识梳理课堂课堂导入导入知识梳理课堂练习课堂小结课后作业知识梳理Have you counted the stars in the sky when you were a child?One two three知识梳理Have you counted the stairs when you go upstairs?The first,the second,the third知识梳理one two three the first,the second,the third它们也有一个洋气的名字，你知道是什么吗？知识梳

4、理数词的概念 表示数目多少或顺序先后的词基数词序数词知识梳理基数词序数词 表示数目多少的数词 表示顺序先后的数词同学们，你们能举出些例子吗？知识梳理(一)基数词的表示方法1基数词112是独立的词，1319都是以teen结尾的词。(1)112要逐个记：1-one 2-two 3-three 4-four 5-five 6-six 7-seven 8-eight 9-nine 10-ten 11-eleven 12-twelve知识梳理(一)基数词的表示方法(2)1319都以teen结尾，都是双重音：13-thirteen 14-fourteen 15-fifteen 16-sixteen 17-

5、seventeen 18-eighteen 19-nineteen 知识梳理2基数词2090整十位数都是以ty结尾。20-twenty 30-thirty 40-forty 50-fifty 60-sixty 70-seventy 80-eighty 90-ninety知识梳理3.大数的表达100-a hundred(一百）1000-a thousand（一千）1,000,000-a million（一百万）1,000,000,000-a billion（十亿）注：1319的teen都是重读音，而2090的ty 都是非重读音节；/tin/为长音，而/tI/为短音。知识梳理4基数词2199都是由

6、“几十”和“几”合起来构成，词中间加连字符(几十-几)，并分别重读。21-twenty-one 34-thirty-four 45-forty-five 56-fifty-six 78-seventy-eight 99-ninety-nine学生举例：74 82 91知识梳理74 82 91Have a try用英语表达下列数字Keys:seventy-four/eighty-two/ninety-one知识梳理5基数词101999，先说“几百”，再加“and”，再加末两位数 (几百 and 几十-几)365-Three hundred and sixty-five.234-two hundr

7、ed and thirty-four502-five hundred and two学生举例：214 607 953知识梳理Have a try用英语表达下列数字Keys:two hundred and fourteen/six hundred and seven/nine hundred and fifty-three214 607 953知识梳理61,000以上的数，先从后向前数，每三位加“，”，第一个“，”前为thousand（千）第二个“，”前为million（百万）第三个“，”前为billion（十亿）知识梳理 4，007：four thousand and seven 85,626

8、：eighty-five thousand，six hundred and twenty-six 402，407：four hundred and two thousand，four hundred and seven 14，002，102：fourteen million，two thousand，one hundred and two例题展示要记得从后往前数喔知识梳理Have a try用英语表达下列数字5012 32534 557623 17594246 8946724631知识梳理7百(hundred)，千(thousand)，百万(million)等词与具体数字或a(n)连用时，词尾

9、不可加“s”。（双无:无s无of）The computer was cheap.I spent only two thousand yuan on it.那台电脑很便宜，我只花了两千元。知识梳理Have a try选择正确的答案There are two _ students in our school.A.thousandsB.thousands ofC.thousand ofD.thousand知识梳理8百(hundred)，千(thousand)，百万(million)等词与介词of连用时，须用复数形式，表示不确定数目，其前不可与数字连用。（双有：有s有of）hundreds of bo

10、oks（数百本书）Thousands of trees（数千棵树）millions of children（数百万的孩子）知识梳理9表示“几十”的数词的复数形式可用来表示人的岁数，在表示“几十年代”时，可以用基数词的复数形式，也可用阿拉伯数字加“s”或“s”。知识梳理She is in her fifties but she looks young.她五十多岁，但她看上去很年轻。From the 1950s(1950s)to the 1970s(1970s)，picture-story cartoons were very popular.从20世纪50年代到20世纪70年代，图画故事的卡通片

11、是很受欢迎的。例题展示知识梳理10基数词可与其他词构成合成形容词。Kate is an eighteen-year-old girl.凯特是个18岁的女孩。eighteen的读音以元音开头，故其前要用不定冠词an。注：这种合成形容词的结构为：“数词单数名词形容词”。复合形容词中，词与词之间要加连字符。知识梳理11基数词可用作主语、宾语、表语或同位语。Give him three.(宾语)给他三个。Two-thirds of the teachers in our school are women teachers.(主语)我们学校三分之二的老师是女老师。知识梳理12电话号码的读法为顺次读出一个

12、个数字，“0”读作“o”或 “zero”。数字连续重现时可用“double(双)”。62884405读作six two eight eight four four o(或zero)five six two double eight double four o(或zero)five学生举例：4761329知识梳理12电话号码的读法为顺次读出一个个数字，“0”读作“o”或“zero”。数字连续重现时可用“double(双)”。62884405读作six two eight eight four four o(或zero)five six two double eight double four o

13、(或zero)five听力的时候要注意double这个单词喔知识梳理 基数词，不难记，找出规律很容易；一至十二形各异，一个一个单独记；后加-teen为“十几”，thirteen，fifteen看仔细，Eighteen也要提一提，它后只有一个t。记忆口诀知识梳理表示“几十”要加-ty，twenty，thirty是特例Forty、fifty更厉害，和eighty一起搞特殊。表示数字“几十几”，连字符号千万别忘记。要表“几百几”，and常把百、十系；还有一点须注意，“几百”之后-s去。记忆口诀知识梳理一、请选择正确的答案填空。1.There are _ people in the cinema.A.

14、two hundred B.two hundreds C.two hundred of D.two hundreds of【解析】：选A。表示具体数目时，hundred和thousand等用单数形式，且不用of，故选A。练习题知识梳理2.He bought _roses yesterday.A.two dozens B.two dozens of C.two dozen D two dozen of【解析】：选C。表示具体数目时，dozen用单数形式，且不用of，故选C。练习题知识梳理3.This book is _ years old.A.several thousand B.several

15、 thousands C.several thousand of D.severals thousands of【解析】：选A。hundred和thousand等与many,several,a few等连用修饰名词复数时，用单数形式，且常不用of，故选A。练习题知识梳理4._people came to the party.A.Hundred B.Hundred of C.Hundreds D.Hundreds of【解析】：选D。表示确定数目时，用“基数词+hundred+名词”，如two hundred people两百人；表示数百和数千等笼统概念时，用“hundreds+of+名词”，h

16、undreds of people数百人。只有D选项符合用法，故选D。练习题知识梳理5.We are now living in_century.A.21st B.the 21st C.the 21 D.21【解析】：选B。表示第几世纪，用序数词，并在序数词前加the，故选B。练习题知识梳理6.Elena was a singer in_.A 1870 B 1870s C 1870s D the 1870s【解析】：选D。表示年代时，数字后要加s或s,且数字前要加冠词the，如the 1820s/the 1820s 19世纪二十年代；故选D。练习题知识梳理7.My _son is Tom.A.

17、six years old B six year old C six-year-old D six-years-old【解析】：选C。数词与连字符和度量单位可作定语，且此时不用复数形式，故选C。练习题知识梳理8.Joey went to England when he was _.A.fifties B in fifty C in his fifty D in his fifties【解析】：选D。表示大概年龄，应当用in his fifties表示在他五十多岁的时候，故选D。练习题游戏时间Game TimeJuneFebruaryJanuaryMayMarchApril游戏时间JulyDec

18、emberNovemberSeptemberAugustOctober游戏时间yearweekdaymonthwhen游戏时间03课堂练习课堂课堂导入导入知识梳理课堂练习课堂小结课后作业课堂练习阅读训练一 Rick is a good man.He makes birthday cakes in a store.His cakes are great and have very good prices,so many people buy his cakes.He makes friends with lots of his customers(顾客).They all like him ve

19、ry much.One evening,he wants to go home,but many of his old customers come in.Rick smiles(笑)to them,“I am sorry.It is late today.If you need cakes,please come tomorrow.”One of them takes out a nice cake and says to him,“You make so many great cakes for us.This birthday cake is for you.Happy birthday

20、,Rick.”课堂练习根据短文内容，选择最佳答案。()1.Where does Rick work?A.At school.B.In the classroom.C.In a store.D.At a party.()2.When the customers come,Rick _ A.is making cake B.is at home C.wants to go home D.is playing basketball课堂练习()3.His customers give(给)him _ A.many cakes B.a birthday cake C.some vegetables D.

21、some fruit()4.Ricks customers like him because _.A.he is a good man B.his cakes are big C.his cakes are at a very good price D.A and C()5.The customers come to Ricks store because _.A.they want to buy cakes B.today is Ricks birthday C.Rick asks them to come D.they come for a party课堂练习【主旨大意】瑞克在蛋糕店里工作

22、。他与人为善，与很多顾客成为朋友。生日这天，朋友们为他送上了一个生日蛋糕。1.C 由He makes birthday cakes in a store.可知。2.C 由he wants to go home,but many of his old customers come in.可知。3.B由This birthday cake is for you.可知。4.D由第一、二行可知。5.B由倒数两行可知。课堂练习阅读训练二Li Gangs my classmate.There are four people in his family.They are his grandfather,hi

23、s s and himself.His grandfather is sixty years old,but he looks healthy.Why?He eats healthy food every day.In the morning he has cereal(谷类食品)for breakfast.For lunch and supper,he has rice and vegetables.He seldom has sweet snacks.He has some fruit after each meal.He exercises for about half an hour

24、every morning,.He always swims and runs in the afternoon.Sometimes he plays badminton with Li Gang.Li Gangs grandfather says,”I always feel Young.Because I have healthy food and exercise every day.”课堂练习()1.Li Gangs grandfather can keep healthy because he _.A.has healthy foods B.goes to bed early C.d

25、oes some exercise D.Both A and C()2.Li Gangs grandfather doesnt often have _.A.rice B.vegetables C.fruit D.sweet snacks()3.Li Gangs grandfather _after each meal.A.runs B.plays computer games C.eats some fruit D.plays badminton with Li Gang 课堂练习()4.Its not good for you to _every day.A.have a healthy

26、breakfast B.have a healthy lifestyle C.have lots of meat D.swim or run or play badminton for about 30 minutes()5.Which is the best title for this article?A.Breakfast,lunch and supper B.You should exercise every day C.How to keep healthy D.Sweet snacks arent healthy 课堂练习【主旨大意】李刚的爷爷今年六十了，却非常的健康。为什么呢？一

27、是因为他每天都吃健康的食品，二是因为他每天上午都会锻炼半个小时。D 最后一句可知。D由He seldom has sweet snacks.可知。在此句中应理解seldom的词意几乎不。C 由He has some fruit after each meal.可知。C 由生活常识知。C 通读全文知。课堂练习 Big Ben is not the name of a man.It is the name of a huge clock in London.London is the capital of the UK.This clock has four faces,so no matter(

28、无论)where you stand,you can read the time on the face of Big Ben.Each face is the size of a double decker(双层的)bus.The hands are about four metres long.It is about the size of two people standing on top of each other.阅读训练三课堂练习 If you go to London,you may want to visit the House of Parliament(国会大厦).Tha

29、t is where you will find Big Ben sitting at the top of the clock tower(塔)in the House of Parliament.You will hear it as well as see it.The big clock makes such a loud sound,“Ding Dong,Ding Dong,”when it goes every quarter(四分之一)of an hour.The clock was named after a big man.He was Sir Benjamin Hill.H

30、e did much building work in London many years ago.课堂练习()1.Big Ben is _.A.a double-decker bus B.a huge clock C.the name of Ben D.a building()2.The clock strikes(敲响)every _of an hour.A.ten minutes B.fifteen minutes C.thirty minutes D.forty-five minutes()3.Which of the two words mean the same as“large“

31、?A.Double B.loud C.huge D.Small 课堂练习()4.You can read the time of Big Ben _.A.at the top of the tower B.in the House of Parliament C.on the hands of the huge clock D.on the four faces of the clock()5.The title(标题)of the passage may be _.A.Big Ben B.A clock C.Sir Benjamin Hill D.The Capital of the UK

32、课堂练习【主旨大意】大本钟是伦敦的一个巨大的钟的名字。它有四个面，因此，无论你站在哪边，都可以看到钟面上的时间。钟的每个面有如双层公交车那么大，指针大约四米长。当你去伦敦时，可能会想去看国会大厦。在国会大厦的钟塔顶端，就是大本钟。你不仅可以看到它，也可以听到它。每隔十五分钟，它就会发出响亮的“铛铛”声。课堂练习B 由短文第二句可知。B 由when it goes every quarter(四分之一)of an hour.可知。C 词意猜测题。文中多次描述了大本钟之大。细读文章可知。D 读短文第二、三行可知。A 通读全文可知。04课堂小结课堂课堂导入导入知识梳理课堂练习课堂小结课后作业课后小结05课后作业课堂课堂导入导入知识梳理课堂练习课堂小结课后作业课后作业 整理课堂笔记，温习课上复习的知识点 词汇句型篇要求背记，下节课默写课后作业介绍一位你的好朋友，不少于50-60词。