2018年秋七年级英语上册 Unit 7 How much are these socks单元语法聚焦七 (新版)人教新目标版

2018

1 Unit 7 How much are these

socks

[基数词和how much 的用法

]

1．—How much is the hat ？这顶帽子多少钱？

—It's five dollars.5美元。

2．—How much are these socks ？这些短袜多少钱？

—They're two dollars.2美元。

3．Two dollars for one pair and three dollars for two pairs.

两美元一双，三美元两双。

4．I'll take two pairs.

我买两双。

1．基数词

数词分为__________和__________。表示数量多少的词叫基数词，如one, two, three,

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four等。表示顺序的词叫序数词，如first, second, third等。

100以内基数词的表达法：

(1)one—twelve：拼写和读音各不同，无规律可循，应逐一记忆。

(2)thirteen—nineteen：表示“十几”，构成特点是词尾都是“________”，单词有两个重音。 thirteen，fifteen和eighteen需特殊记忆。

(3)twenty—ninety：表示“几十”，构成特点是词尾都是“________”。

(4)“几十几”的表达方法：整十位数＋连字符＋个位数。如：

21：twenty­one28：twenty­eight

35：thirty­five 44：forty­four

56：fifty­six 67：sixty­seven

72：seventy­two 83：eighty­three

99：ninety­nine

(5)“一百”可以用a hundred或one hundred来表示。需要注意的是，hundred之前有具体数字修饰时，hundred用单数形式。但当hundred之后有of时，hundred一定要用复数形式，且前面不再有数词，即hundreds of。

(6)基数词的用法：

①表示人或物的数量，放在名词之前。如：

I have five basketballs. 我有五个篮球。

②表示编号时，用“名词＋基数词”。如：Class Nine 九班， Room 301 301房间

③表示年龄，基数词放在year(s) old (可省略)的前面。如：

My brother is twenty (years old). 我哥哥20岁了。

④表示时间。如：

It's ten o'clock. 十点钟了。

⑤用于数学计算。

Two and three is five.二加三等于五。

—What's forty­six and twenty­two?

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46加22等于多少？

—It's sixty­eight.等于68。

注意：基数词作主语时，谓语动词用第三人称单数形式。如：

Two and six is eight. 2加6等于8。

2．how much的用法

提问价格可用句型：How much＋is/are＋n.？(be与n.的单复数一致)/What's the price of＋n.？其回答常用：It's/They are＋基数词＋价格单位．如：

—How much are these trousers?

这些裤子多少钱？

—They are 12 dollars. 12美元。

—How much is this T­shirt?

这件T恤衫多少钱？

—It's 20 yuan. 20元。

注意：使用“What's the price of＋n.？”这一句型时，无论被询问的商品表示单数还是复数，be动词都用is，不能用are。其答语也只能是“It's…”

Ⅰ.写出下列数字的英文形式

1．0 ________ 2.3 ________

3．12 ________ 4.13 ________

5．14 ________ 6.15 ________

7．19 ________ 8.20 ________

9．30 ________ 10.40 ________

11．80 ________ 12.90 ________

13．44 ________ 14.99 ________

15．37 ________ 16.216 ________

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Ⅱ.汉译英

1．两支铅笔________________

2．三十名学生________________

3．三条裤子________________

4．十九个西红柿________________

5．二十美元________________

6．四十元________________

Ⅲ.用适当的基数词完成下面的等式(数字用英语写出)

1．four＋eight＝________

2．seven＋eight＝________

3．thirteen＋seven＝________

4．fourteen＋sixteen＝________

5．seventy－fourteen＝________

6．eighty－sixteen＝________

7．sixty－thirteen＝________

8．eighty－forty＝________

9．forty­eight－twelve＝________

10．ninety＋five＝________

Ⅳ.单项填空

( )1.Eleven and twelve is ________．

A．eleven B．thirty­one

C．twenty­three D．twenty­one

( )2.—How much________ the sweater?

—________ fifty yuan.

A．is; It's B．are; They're

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C．is; They're D．are; It's

( )3.There are ________ students here.

A．fourty­four B．four­fourty

C．forty­four D．four­forty

( )4.These shirts________ only 5 dollars. Do you want________？

A．are; it B．is; one

C．are; one D．is; it

( )5.—________ is the TV?

—It's 2，000 yuan.

A．How many B．How much

C．How about D．How big

( )6.These trousers ________ very beautiful. How much ________ they? A．are; are B．are; is

C．is; are D．is; is

( )7.—________ water do you need?

—Just one glass.

A．How many B．How far

C．How much D．How long

( )8.—How much ________ these hamburgers?

—________ ten dollars.

A．are; It's B．are; They're

C．is; It's D．is; They're

( )9.How much ________ the skirt and the sweater?

A．is B．are C．has D．have

( )10.Mike has ________ volleyballs.

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A．twenty three B．fifty­third

C．forteen D．forty

Ⅴ.根据句意及首字母提示补全单词

1．—How much are the pen and the dictionary?

—T________ yuan. The pen is 8 yuan and the dictionary is 22 yuan.

2．I'm fourteen years old. My brother is one year older (比……大) than me. So my brother is f________ years old.

3．They have nine baseballs, five basketballs and four volleyballs. They have e________ balls in all.

4．There are sixty­five teachers in our school, twenty men teachers and f________ women teachers.

5．T________ is after eleven and before thirteen.

Ⅵ.按要求完成下列各题，每空一词

1．How much are the shoes? (写出答语)

________ ________ 20 dollars.

2．How much is the green sweater? (改为同义句)

________ ________ ________ ________ the green sweater?

3．The shirt is 30__dollars．(对画线部分提问)

________ ________ is the shirt?

4．What's seven and five? (写出答语)

________ ________.

5．The jacket and the shirt are 80__yuan. (对画线部分提问)

________ ________ ________ the jacket and the shirt?

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详解详析

【语法探究】

1．基数词；序数词(2)­teen(3)­ty

【实战演练】

Ⅰ.1.zero 2.three 3.twelve 4.thirteen

5．fourteen 6.fifteen 7.nineteen

8．twenty 9.thirty 10.forty

11．eighty 12.ninety 13.forty­fo ur 14.ninety­nine15.thirty­seven

16．two hundred and sixteen

Ⅱ.1.two pencils 2.thirty students

3．three pairs of trousers

4．nineteen tomatoes 5.twenty dollars

6．forty yuan

Ⅲ.1.twelve 2.fifteen 3.twenty

4．thirty 5.fifty­six 6.sixty­four

7．forty­seven 8.forty 9.thirty­six

10．ninety­five

Ⅳ.1.C 2.A 3.C

4．C 主语shirts为复数，故be动词用are；泛指其中的一件用one指代。

5．B

6．A trousers是复数，谓语动词应用are；第二空的主语是they，所以谓语动词用are。

7．C how many意为“多少”，用于提问可数名词的数量；how far意为“多远”，用于对距离提问；how much意为“多少”，用于提问不可数名词的数量；how long意为“多长；多久”，用于对物体的长度或一段时间提问。water是不可数名词，应用how much来

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提问。故选C。

8．B

9．B 主语是the skirt and the sweater，故谓语动词用are。

10．D

Ⅴ.1.Thirty 2.fifteen 3.eighteen

4．forty­five 5.Twelve

Ⅵ.1.They are

2．What's the price of

3．How much 4.It's twelve

5．How much are

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