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

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, 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：twenty­eight35：thirty­five 44：forty­four56：fifty­six 67：sixty­seven72：seventy­two 83：eighty­three99：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?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 ________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．thirty­oneC．twenty­three D．twenty­one( )2.—How much________ the sweater?—________ fifty yuan.A．is; It's B．are; They'reC．is; They're D．are; It's( )3.There are ________ students here.A．fourty­four B．four­fourtyC．forty­four D．four­forty( )4.These shirts________ only 5 dollars. Do you want________？A．are; it B．is; oneC．are; one D．is; it( )5.—________ is the TV?—It's 2，000 yuan.A．How many B．How muchC．How about D．How big( )6.These trousers ________ very beautiful. How much ________ they?A．are; are B．are; isC．is; are D．is; is( )7.—________ water do you need?—Just one glass.A．How many B．How farC．How much D．How long( )8.—How much ________ these hamburgers?—________ ten dollars.A．are; It's B．are; They'reC．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.A．twenty three B．fifty­thirdC．forteen D．fortyⅤ.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?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.thirteen5．fourteen 6.fifteen 7.nineteen8．twenty 9.thirty 10.forty11．eighty 12.ninety 13.forty­four14.ninety­nine15.thirty­seven16．two hundred and sixteenⅡ.1.two pencils 2.thirty students3．three pairs of trousers4．nineteen tomatoes 5.twenty dollars6．forty yuanⅢ.1.twelve 2.fifteen 3.twenty4．thirty 5.fifty­six 6.sixty­four7．forty­seven 8.forty 9.thirty­six10．ninety­fiveⅣ.1.C 2.A 3.C4．C 主语shirts为复数，故be动词用are；泛指其中的一件用one指代。