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江苏省大丰市第七中学九年级英语《数词与名词》专题复习教案
1. 英语中的数词分为两种:基数词与序数词。基数词表示事物的多少,序数词表示事物的
顺序,往往与定冠词the连用。请熟记下面的表格:
one
first
1st
twelve
twelfth
12th
thirty
thirtieth
30th
two
second
2nd
thirteen
thirteenth
13th
forty
fortieth
40th
three
third
3rd
fourteen
fourteenth
14th
fifty
fiftieth
50th
four
fourth
4th
fifteen
fifteenth
15th
sixty
sixtieth
60th
five
fifth
5th
sixteen
sixteenth
16th
seventy
seventieth
70th
six
sixth
6th
seventeen
seventeenth
17th
eighty
eightieth
80th
seven
seventh
7th
eighteen
eighteenth
18th
ninety
ninetieth
90th
eight
eighth
8th
nineteen
nineteenth
19th
ninety-five
ninety-fifth
99th
nine
ninth
9th
twenty
twentieth
20th
one hundred
one hundredth
100th
ten
tenth
10th
twenty-one
twenty-first
21st
eleven
eleventh
11th
twenty-six
twenty-sixth
24th
2. 英语中有几个比较重要的数字单位,例:ten,dozen(一打,十个),score(二十个),
hundred,thousand,million,billion,这些单位前有数字时不加s。英文中数字从右向左三位一逗号,读数时千位与百位之间通常不加and,百位与十位间需要加and,例:500,five hundred,16800:sixteen thousand eight hundred,17823697:seventeen million eight hundred and twenty-three thousand six hundred and ninety-seven。注意在英语中没有“万”与“亿”,ten thousand表示一万,one hundred million表示一亿。
3. 表示一个不确定的数目时,以上数字单位可以用复数,后面接of短语,例:tens of, dozens
of , scores of, hundreds of, thousands of, millions of, billions of, tens of millions of。以上所有词组前不可加具体数字,但可以用many,several等不确定的数词来修饰。
4. 英语中年份虽然也用数字表示,但读法与数字不同,例:1830:eighteen thirty,1956:
nineteen fifty-six。大于2000的年份可用数字读法,2008:two thousand and eight。
5. 与9有关的所有数字,除第九(ninth)去e外,其余均不去e。
6. in one’s twenties(20s)表示在某人二十多岁时,其余年龄段以此类推;in the 1980s
(nineteen eighties)表示在20世纪80年代;in the seventeen century表示在17世纪,注意世纪前加入序数词;识记一些固定搭配,例:No. 10 Middle School,Class Three,Row Five,CCTV-9。
7.一半用half表示,四分之一用quarter表示;数字中的小数点读成point,例1.2m读成one point two meters(作为复数);两天半可以有两种表达:two days and a half或two and a half days;在分数中分子用基数词,分母用序数词,若分子大于1,则分母序数词用复数形式,例:1/3(one third),3/4(three fourths或quarters),9/10(nine tenths)。
8. 月份讲法涉及数字,写法可用基数词或序数词,但读时需要加上the,例:March 6(或
6th)读成March the sixth;July 1(或1st),1949读成July the first,nineteen forty-nine。
9. 加减乘除在英语中的运用:
8+4=? What’s eight plus(或and)four? 8-4=? What’s eight minus four?
8×4=? What’s eight multiplied by four? 8÷4=? What’s eight divided by four?
练习:I。请用英语说出以下数字及表达:
in her 50s; on November 12th, 2003; 3.75 m; 1/4; 5/7; 7/11; in 1987; in 1564; ZJTV-5; on his 14th birthday; in 1970s; Class 4; 548; 9788; 34215; 385692。
II。用适当的数词填空(In English):
1.-What’s 11 plus 20? -It’s __________.
2.China has the largest population. But which country has the __________ largest population?
3.September is the __________ month of the year.
4.-What class are you in? -I’m in Class __________( 8 ).
5.There are ___________ minutes in an hour.
6.The PRC was founded on October 1, 1949. How will you say this year in English?
7.His hair turned white when he was only in his __________ ( 40s ).
8.The train will leave at 9:00. It’s 7:30 now. We have still _____ _____ _____ ____ _____left.
9.______ ______ ( 3/4 ) of the land is covered by forests in Holland, the country of flowers.
10.Dinosaurs disappeared about ________ ________ ( 65000000 ) years ago.
名词
1. 名词可分为专有名词与普通名词,专有名词是个别的人、事物、地点等专有的名称,首
字母要大写,例:Lucy,China,Luqiao。普通名词按性质可分为可数与不可数名词,前者有复数形式,后者一般无复数形式,在句中看作单数形式使用。
2. 一般可数名词直接加s;以s, ss, sh, ch, x结尾的词加es,例:box-boxes, class-classes;
以辅音加y结尾的词变y为i加es(读音参看专题一4),例baby-babies;以f或fe结尾的词变f(fe)为v再加es,例:half-halves,knife-knives(reef例外);以o结尾的可加s或es,例:radio-radios, photo-photos, tomato-tomatoes。
3. 注意一些特殊名词复数形式:child-children, woman-women, man-men, foot-feet。
4. 有些名词单复数同形,例:sheep-sheep,deer-deer,Chinese-Chinese,people-people。
5. 有些名词如family,class为集体名词,即可表达单数又可表达复数意义,侧重点有所不
同,根据上下文而定,例:My family is an interesting one. -His family are going on a trip soon.
6.某些名词只有复数形式,例:noodles,trousers,glasses,scissors。某些词即可作可数名词又可作不可数名词,但意义不同,例:room,orange,time。
7. man,woman修饰名词时两个都用复数,例:two women teachers;与材料有关的名词大
多不可数,例:water, metal, paper。不可数名词可以用a piece of,a box of,a cup of,a pair of,a bottle of等来修饰,当前面所用数字为复数时单位加s,例:a bag of rice,two bags of rice。
8.名词所有格表示某物归属于某人,通常在单数名词后加’s表示,例:Lucy’s hat, my father’s friend;不以s结尾的复数名词后加’s,例:men’s shoes, children’s books;以s结尾的复数名词的后加s’,例:Teachers’ Day, the twins’ room。用of构成的短语主要用于表示无生命的名词的所有关系,例:the door of the classroom。名词所有格可用来表示某人的家,例Peter’s。
练习:I。请指出以下名词是否可数,用A表示可数,B表示不可数:
rice ( ), cake ( ), bread ( ), time ( ), day ( ), information ( ), thank ( ), work ( ), housework ( ), air ( ), wool ( ),news ( ), newspaper ( ), beef ( ), fruit ( ),vegetable ( ), butter ( ), salt ( ), room ( ), tea ( ), sheep ( ), policeman ( ), milk ( ), meter ( ), yuan ( ), dollar ( ), mistake ( ), money ( ), health ( )
II.用所给名词的适当形式填空:
1.Hello, class! I have _______ ______ ______ ( 两则 )good news for you.
2.What was the ___________ ( 世界 ) population in 1990?
3.Look! There are some cheap ________ ________ ( 女服 ) on sale in this shop. Let’s go in.
4.Please send ________ ________ ________ ________( 两箱牛奶 )to my office right now.
5.Excuse me? Can you make _________ ________ ________( 一点空间 ) for this old man?
6. The last bus has just gone. I am afraid we have to go home on ________ ( 步行 ).
7. ______ ________ ________ ( 多少时间 ) do you spend on your English every day?
答案:
数词II:1. thirty-one 2. second 3. ninth 4. Eight 5. sixty
6. nineteen forty-nine 7. forties 8. one hour and a half
9. Three fourth 或three quarters 10. Sixty-five million
名词II:1. two pieces of 2. world’s 3. women dresses 4. two boxes of milk
5. a little room 6. foot 7. How much time
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