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八年级上M9Population学案

发布时间:2013-12-13 16:32:31  

M9U1 The population of China is about 1.37 billion.

【学习目标】

1.知识目标:

掌握本课时的词汇;

掌握冠词的用法和数词的读法。

2能力目标

能够听懂谈论关于人口问题的简单对话

掌握数字的读法和分数的表达法

3.情感目标

培养学生关注国家大事的情感,提高社会意识。

【重点难点】

掌握本课词汇和句型

掌握大额数字的读法

能够就人口问题展开讨论,提出解决办法。

【知识解析】

一. 数字的写法; 在英语中,三位数以内的数字直接写,超过三位数的每隔三位用逗号隔开,如;500 1,500 11,500 111,500 1,111,500 依此类推。

二.数字的读法 ●1.数字的单位:hundred 百thousand 千million百万 billion 十亿 trillion万亿

●2.一位数或两位数:直接按单词的读法读

●3.三位数:通常需要在百位后加上and(整百除外)如:120 one hundred and twenty

102 one hundred and two 200 two hundred

●4.三位以上:三位一节,从右往左,第一个逗号之后加上thousand,第二个逗号之后加上million,第三个逗号之后加上billion ,第四个逗号之后加上trillion,如 ●1,245 one thousand ,two hundred and twenty;

●12,345 twelve thousand,three hundred and forty- five .10,001 ten thousand and one

●100,941 one hundred thousand ,nine hundred and forty- one

●2 ,134,658 two million ,one hundred and thirty-four thousand ,six hundred and fifty- eight ●31,234,567,890 thirty-one billion ,two hundred and thirty-four million ,five hundred and sixty-seven thousand ,eight hundred and ninety.

注意:

●1,英语中没有“万”,十万,千万,亿等单位,要表示这些概念时应用英语中有的数字单位进行换算,如:万即十个千(ten thousand),十万即百个千(one hundred thousand),千万即十个百万(ten million),亿即百个百万(one hundred million)

●2, 表示具体数字时,数字单位(hundred,thousand ,million ,billion,trillion)之后不能加s表示复数,但泛指很多时,可以在单位后加s,形成短语hundreds of(数百的,成百上千的),thousands of(大量的,成千上万的) ,millions of(数百万的) ,billions of(数十亿的),这些短语前不能加数字,只是表示泛指。

三,prepare….for…为了…..准备好…,也可直接说prepare for….为….作准备

如:We prepared a big birthday cake for her birthday.我们为她的生日准备了一个很大的生日蛋糕。Now I’m going to prepare for the final exam.现在,我得开始准备期末考试了。

四,辨析so much 和so many。俩者均表示:如此多的….,但前者修饰不可数名名词,后者修饰可数名词。如:I’m sorry to hear that you have so much trouble.

.我很抱歉你有这麽多的麻烦事。

Oh,you have so many books.! 哦,你有那么多书。

1

五,make notes,做笔记, 如:You shoud make more notes in English lessons.你在英语课上应该多做笔记。 六,one fifth :五分之一

●1,分数的表达方式:基数词+序数词,其中基数词表示分子,序数词表示分母。当分子大于1时,分母用复数形式,如:Tow fifths of the students are from the city.五分之二的学生来自于这个城市。 ●2,需要注意的是:1/2不能说a(one ) second,而要说a(one )half.1/4和 3/4可以说a(one)fourth three fourths,但常用a quarter和three quarters表示。如: One harf of my friends went abroad.我有一半的朋友都出国了。

●3,分数修饰名词时作主语时,谓语动词与分数所修饰的名词一致,如:Only one fifth of air consists of

oxygen. 氧气只占空气的五分之一。 About two thirds of the students are boys.大约三分之二的学生是男孩。

●4,带分数也是常见的英语数词表达:整数部分要和分数部分要用and连接,当带分数修饰名词时,该名词通常是复数。如:You should finish the work within one and a fourth hours.

你应该在1.25小时之内完成这项工作。

【笔记详解】 1. The population of China is about 1.37billion.

?

●The population of sp is...表示sp有多少人

此外用

●sp has a population of...也可以表示sp有多少人

●形容人口(population)的多少用big/ large 或small 当population 作主语时,谓语动词用单数

●询问某地有多少人口有两种表达方法:

1.What’s the population of ...

2. How large is the population of ...

注意:询问某地有多少人口时不用how many 和how much

?

●hundred\thousand\million\billion等前有数字,用单数形式

three hundred

hundred\thousand\million\billion等后有of,用复数形式

thousands of

2.

●noise (n.) 噪音

noisy(adj.) 吵闹的

make noise 发出噪音

●voice指嗓音(人说话或唱歌)

●sound泛指一切声音

3. prepare 准备

●prepare for 为...做准备

●prepare to do sth 准备去做某事

. Eg:

2

They are preparing for the New Year.

We prepare to go fishing next weekend.

4. report 报告;报道

●make a report 做报告

●reporter 记者,通讯员

notes 名词复数形式―笔记/随笔‖

●make notes 记笔记

5.such as \for example 例如,比如

I like fruit, such as apples, bananas.

●too much+不可数名词

●much too+adj. 太......

●too many+可数名词

Eg:

I have too much homework to do today.

That dress is much too long for me.

There are too many people in the shop on Sunday.

6.

●increase by+倍数/百分数 ―增加了...”

●increase to+具体增长后的数字 ‖增加到...‖

Eg:

The number of teachers increased by twice. The population of the town increased to 50000.

7.

●be born in+年份\地点

I was born in 1985.

●be born of+家庭

He was born of a rich family.

8. one fifth五分之一

●分数的表达法:

分子在前,

用基数词;

分母在后,

用序数词。

当分子大于1时,分母需要用复数

3

如:

two thirds

9. hang on a minute. 稍等

10. quiet (adj.) 安静的;宁静的

quietly(adv.) 安静地

quite ( adv.)相当,十分

Eg:

Please keep quiet, my father is sleeping now.

She is quite beautiful in that red coat.

11. close to=next to 靠近,挨着

Eg:

His house is close to a supermarket.

12. move to移到

Eg:

More and more people move to the big cities these years.

13.

●It be +adj. to do sth

●one of +可数名词复数...之一(谓语动词用单数)

14.local 当地的

close down 关闭

Eg:

The local government should do something to solve the water pollution. This shop closed down last year.

15.

●It takes sb st to do sth

●sb spend(s) st\sm on sth

(in) doing sth

●sth cost(s) sb sm

●sb pay sth for sm

4

16. public services 公共服务

a public telephone 公用电话

in public 在公共场合

the public 公众

17.in fact 事实上

all over the world 全世界

18.face danger 面对危险

face to face 面对面地

make a face 做鬼脸

as a result 结果是;因此

19.die from 由于...而死(死于外因,如事故等)

die of 因...而死(死于内因,如疾病等)

Eg:

He died from an accident.

A lot of people died of cancers

20.leave 离开(某地)

①leave for+目的地 前往(目的地) 启程去某地

I’ll leave for Shanghai next week.

②leave 还有―忘了带,留下‖之意

I left my book at home .

21.辨析:job 与work

job (cn)指具体的职业或零工

work(un)指人们日常生活和工作中从事的体力或脑力劳动

【Grammer】:

冠词:是限定的一种词,不能单独使用,常用于修饰名词。

a/an

the

零冠词

●1.不定冠词的用法

不定冠词用来修饰可数名词单数,指人或物种的某一个或某一类,但不具体说明是何人何物。

不定冠词的常见用法有:

①表示―一个‖的概念。

Population is a big problem for cities .

②表示―每一―的概念,相当于every 。

5

I watch TV once a week .

③首次提到的某人或某物,不定冠词起介绍作用。

A student wants to ask you some questions

④某些固定短语中,要用不定冠词。

have a good time

have a look

have a rest

2.定冠词的用法

①指前文中提到过的人或物。

I have a dog . The dog is black .

②特指某人或某物。

The girl with long hair is my younger sister .

③指说话双方都知道的人或物

I had to write the same report last term .

④用于专有名词前。

the Great Wall

the Pacific Ocean

⑤用于世界上独一无二的事物前。

the sun

the moon

⑥用于姓氏复数形式之前,表示―一家人‖或―夫妇二人‖。

the Smiths

⑦用于形容词最高级前。

the biggest city

⑧用于序数词前。

the first boy

⑨用于西洋乐器名词前。

play the piano

⑩某些形容词前加定冠词the ,表示一类人或物。

the young

the old

⑾用于某些固定短语中: in the morning the day after tomorrow

3.零冠词的用法

①在球类活动,学科名词前以及节日,月份,星期前不用冠词。

Tom can play volleyball .

②名词前已有指示代词,物主代词,不定代词或数词等作定语时名词前不用冠词 There are many books in her schoolbag.

③在某些固定短语或习惯用语中不用冠词

by bus

have breakfast

at home

at night

6

『注意』:

在某些短语中,名词前用冠词和不用冠词的意义有所不同。

in hospital in the hospital

at table at the table

in class in the class

数字:分为基数词和序数词。

本模块中,我们重点学习数字的读法。在英语中,每三位数字为一个单位,按照百,十,个位向下读。而进位的读法则为

thousand, million , billion

向上递增。

数次的常见用法:

①分数表达法

在英语中,分子用基数词,分母用序数词。当分子是1时,分母用原形;当分子大于1时,分母用复数形式。

1/3 :one thirds

2/3: two thirds

②百分数的表达百分数用percent 表示,符号为%

如:5% 读作five present .

【当堂达标】

一、写出以下数字的英文表达方式。

3/4 ______________________ 2/5 _______________________

4/5_______________________ 1/6_______________________

1,245 ____________________________________________________________________

12,345 ____________________________________________________________________

100,941 ____________________________________________________________________ 2,134,658____________________________________________________________________

31,234,567,890

______________________________________________________________________________

二、用所给词的适当形式填空

1, So far ,the population of China_____________(be)over 1.3 billion..

2, Three quarters of the earth surface___________(be) covered with water.

3, The population of Chongqing is 36 __________(million).

4, In our school,two ______(three) of the teachers are women.

5, How long does take you________(walk )50 meters?

6, The poor children need somewhere_______(live)

三、单项选择

1,I have five ______ net friends.

A hundreds B hundreds of C tens D and hundred

2, 2500 should be read as_________.

A two hundreds and five hundreds B two hundred and five hundred

C two hundred five hundred D two hundreds five hundred

7

3, There are _______people in the theater.

A so many B so much C so few D so more

4, One seventh of the students___________play footable.

A is Bam C are Dwill

5, _________of the boooks are written in English.

A second thirds B Two third C two three D two thirds 6,----Mr Green has ______one –year—old son ,doesn’t he?

----Yes,,and he also has__________8-year-old daughter.

A a,a B an a Ca,an D an,an

7,---_______the population of Hongkong?

---Seven million.

A How is B How much is C What are D What is

8,---What’s the population of China ?

---More than____________.

A1.3 billion B 1.3 billions C 1.3 millions D 1.3 million

9,The number of the students in our school is about nine________,______of them are boys.

A hundred two thirds B hundred two third

C hundreds two thirds D hundreds two third

10,Because of the Project Hope ,___________children have better lives. A thousand Bthousands C thousands of D thousand of 『Homework』:

初中英语专项练习(数词)

1. Every year, _____ people go to visit their factory

A. a thousand of B thousands C. thousand of D. thousands of

2. Tom has just finished writing a _________ article.

A. nine-hundred-words B. nine-hundreds-word

C. nine-hundred-word D. nine-hundreds-words

3._______ people lost their homes in Japan’s earthquake.

A. Two thousands B. Thousand C. Thousands of D. Thousand of

4.Last year, I visited a chemical factory in Baise, there are about _____ workers in it.

A. six thousands B. six thousand C. six thousands of D. six thousand of

5. About_______of the students in our class were born in the_

A. two-thirds, 1990s B. two-thirds, 1990 C. two-third, 1990s 6. Nowdays of business letters are written in English.

A. two third B. two thirds C. two three C. second three

7. —If a=4, b=5, what’s the answer to the question ― a + 2ab +1 =?‖

 — .

A. Forty-fifth B. Forty-five C. Twenty-three D. One hundred and twenty-one 8

8. —How often do you exercise?

—___

A. Two B. Twice C. Second 9. The teacher said that__ of the boys would take part in the talent show.

A. three five B. three fives C. thirds fifths D. three fifths

10.Tomorrow is the boy’s ________ birthday.

A. seventh B. seven C. seventeen

11.—Which is the biggest number of the four?

A.One-third B.Two-thirds C.A half D.A quarter

12. —Excuse me, where can I buy a jacket?

—You can go to the Men's Wear Section on the_________ floor.

A. two B. twice C. second

A. Three fives B. Three fifths C. Three fifth

14. September is _____ month of the year.

A. ninth B. nine C. the nine D. the ninth

15—How was your day off yesterday?

—Perfect! It was my grandma’s ________ birthday. We had a big cake.

A. eighty B. eightieth C. the eightieth

16.Look at the table .Han Fang wants to buy two pieces of bread ,a bottle of orange juice and an ice cream .How much will she pay?

A. Five yuan and eighteen fen B. Six yuan and twenty fen

C. Seven yuan and twenty fen D. Eight yuan and twelve fen

A. Thousand B. Two thousands C. Thousands of D. Thousand of

18. —Excuse me, how can I get to the museum?

-- Sorry. It's my______ time to he here.

9

A. one B. first C. once

19.You can see _______ if you go out at night.

A.million stars B.thousand of stars C.hundreds stars D.million of stars

20.—Is this your ________ visit to my hometown,Zunyi?

—No.I’ve been here for many times.

A.one B.the first C.first

A. two B. second C. the second

22.More than nine students are doing sports now.

A .hundreds B. hundred of C. hundred D. hundreds of 23. Now, everybody, please turn to Page ________ and look at the ________picture.

A. Fifth; five B. Five; fifth C. Fifth; fifth D. Five; five

24. For breakfast, I usually have______ and two pieces of bread.

A. a cup of mild half B. half a cup of milk C. a half milk cup D. half a milk cup

25. The government of Chongqing is building_______ cheap and good houses for the people.

A. thousand B. thousands C. thousand of D. thousands of

26.______ trees were cut down. And many birds lost their home.

A. Two thousands B. Thousands of D. Thousand of

27.-How was your day off yesterday?

-Perfect! It was ____ birthday of my grandpa’s . We had a big family celebration.

A. seventy B. seventieth C. the seventieth

28. —Jackie Chan has donated_________ dollars to charity.

—He is an example to us all.

A. thousand B. thousands C.thousand of D. thousands of

29. July 1st of this year is ______ birthday of CPC (中国共产党).

A. ninety B. the ninety C. the ninetieth

30. —David, how old is your father this year?

—______. And we just had a special party for his _____ birthday last weekend.

A. Fortieth; forty B. Forty; forty C. Forty; fortieth D. Fortieth; fortieth

31.Kangkang is a school boy. He got a good gift on his birthday.

A. fourteenth B. fortieth C. the fortieth

32. My uncle bought me an iPhone for my _______birthday.

10

A. twelve B. twelfth C. the twelve D. the twelfth 33. 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

34. I don’t believe that this _____ boy can paint such a nice picture.

A. five years old B. five-years-old C. five-year-old

35. Football is so exciting that _____ people in the world play it.

A. million of B. millions of C. two millions of

36. There are over ______ students in their school.

A. hundreds B. nine hundreds C. hundreds of D. nine hundred

37. We are organizing a lot of activities to celebrate the _______ birthday of the Communist

Party of China these months.

A. nineteen B. ninety C. nineteenth D. ninetieth

38.—There are 60 students in my class and 44 of them use weibo very often.

—44? That means about_______of your classmates are weibo users, right?

A. half B. one third C. two thirds D. three quarters

39. More than _____children took part in activities last month. A. two thirds B. thirds second C. second three D. two third

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