七上英语《Unit7 How much are these socks》语法练习下载31
七上英语《Unit7 How much are these socks》语法练习下载31第1页

How much are these socks

单元语法小专题

一、如何询问价格

  询问价格的句型为:How much is/are ...?

  1."How much is ...?"常用来询问单数名词或不可数名词的价格,对此问句进行回答时常用句型为:"It's+价格"。eg:

  -How much is the T-shirt?这件T-恤衫多少钱?

  -It's 68 yuan.68元。

  -How much is the milk?牛奶多少钱?

  -It's 109 yuan.109元。

  2."How much are ...?"常用来询问复数名词的价格,对此问句进行回答时常用句型为:"They're+价格"。eg:

  -How much are these shoes?这双鞋子多少钱?

  -They are 18 dollars.18美元。

  -How much are those dresses?那些连衣裙多少钱?

  -They're 80 yuan.80元。

【拓展】

  询问物品的价格还可以用句型"What's the price of ...?"。使用这一句型时,不管所询问的物品是单数还是复数,be动词都用is,其答语都用"It's ..."。eg:

  -What's the price of that book?那本书多少钱?

  -It's fifteen yuan.15元。

  -What's the price of the books?那些书多少钱?

  -It's fifty yuan.50元。

二、基数词的记忆规则及用法

  1.基数词的记忆规则

  (1)0-12这13个数字独立成词,要单独记忆。它们分别是:zero, one, two, three, four, five, six, seven, eight, nine, ten, eleven, twelve。

  (2)13-19都是以"个位数+teen"构成,fourteen, sixteen, seventeen, nineteen为个位数直接加-teen构成;thirteen, fifteen, eighteen的拼写需特殊记忆。

  (3)20-90整十位数的基数词由相应的个位数字后加-ty构成。sixty, seventy, ninety为个位数直接加-ty构成;twenty, thirty, forty, fifty, eighty的拼写需特殊记忆。

  (4)21-99的两位数的表达是整十位数加个位数,中间加上连字符"-"。eg:

  twenty-one,forty-two, seventy-eight

  (5)100可以写成a hundred或one hundred。一般hundred都不用复数形式。eg:

two hundred, three hundred

  2.基数词的用法

  (1)表示年龄,基数词放在years old之前。eg:

  He is twelve years old.他十二岁。

  (2)用来表示人或物的数量,放在名词之前。eg:

  I have three balls.我有三个球。

  (3)表示顺序、编号等,放在名词之后。eg:

  I'm in Class Four.我在四班。

  (4)用来计算。eg:

  Two and six is eight.二加六等于八。

  -What's forty and twenty?40加20等于多少?

  -It's sixty.等于60。

  (5)基数词作主语时,谓语动词用单数形式。eg:

Six and ninety is ninety-six.6加90等于96。

单元语法强化训练

Ⅰ.用be动词的适当形式填空。

1.How much_________ (be)this white bag?

2.How much _________(be)those blue shorts?

3.How much__________ (be)the bread?

4.Eighteen and twelve __________(be)thirty.

5.Nine hundred __________(be)enough(足够的).

Ⅱ.句型转换,每空一词。

1.These socks are two dollars.(对画线部分提问)

______ _______ _______these socks?

2.How much is the rice?(改为同义句)

_______ _______ ______ ______the rice?

3.Sixty-two and thirty-eight is one hundred.(对画线部分提问)

_______ _______sixty-two and thirty-eight?

4.John's sister is eight years old.(对画线部分提问)

______ ______ ______John's sister?