七年级英语上册第7单元第四课时

第四课时Section B(2a～2c)

名校讲坛

1．Come and buy your clothes at our great sale！我们在大甩卖，快来买衣服吧！

(1)clothes是名词，意为“衣服”。它不能直接与数词连用，但可以与some，these，those 等词连用。作主语时，谓语动词要用复数形式。

(2)sale是名词，意为“出售；特价销售”，其动词形式为sell。on sale意为“降价销售；大甩卖”。

2．buy的用法

buy作及物动词，意为“买；购买”，常与介词for连用，即buy sth.for sb.(＝buy sb.sth.)，意为“给某人买某物”。buy的反义词是sell，意为“卖；出售”。“把某物卖给某人”可用sell sb.sth.或sell sth.to sb.表达。例如：

My mother buys a nice bag for me.我的妈妈给我买了一个好看的包。

3．We sell all our clothes at very good prices.我们卖的所有服装价格都很优惠。

(1)all作形容词，意为“所有的；全部的”。all作代词，意为“全体；一切”。

(2)price作名词，意为“价格”，the price of…意为“……的价格”。形容价格“高低”时，用high或low修饰price，不能用expensive(贵的)或cheap(便宜的)。

4．For girls，we have skirts in purple for only $20.我们有女孩穿的紫色的裙子，仅售20美元。

(1)句中的两个for都是介词，第一个表示对象，意为“对于”，第二个表示“(以……价格)换取”。

(2)in后接表示颜色或衣服的名词时，意为“穿着(……颜色的)衣服”。

,一、单词、短语助记训练

Ⅰ.根据句意及所给汉语或首字母提示填写单词，注意使用适当的形式。

1．I can see two boys(男孩) in the classroom.

2．Those red clothes(衣服) are for my daughter.

3．His friend sells(卖) vegetables in the store.

4．The girl wants to know the price of the yellow skirt.

5．These trousers on sale are thirty dollars for two pairs.

Ⅱ.按要求写出下列单词(词组)的正确形式或相关单词。

6．woman(复数形式) women 7.twenty dollars(用符号表示) $20

8．sell(名词形式) sale 9.buy(第三人称单数形式) buys

10．short(反义词) long

Ⅲ.短语英汉互译。

11．服装店clothes__store 12.buy sth.for sb.给某人买某物

13．女士的服装women's__clothes 14.on sale 特价销售

15．……的价格the__price__of…

,二、重难点知识突破

(一)buy，sell和sale的区别运用

Ⅰ.单项填空。

(A)1.My daughter's skirt is short and small.I need to ________ a skirt for her.

A．buy B．want C．sell D．sale

(C)2.We can't buy any clothes in that clothes shop.It ________ only women's clothes.

A．buy B．sell C．sells D．sales

(D)ually the shop keepers(店主) can't ________ cigarettes(烟) or wine(酒) ________ children(孩子)．

A．buy；for B．buy；to C．sell；for D．sell；to

Ⅱ.根据句意，用括号中所给词的适当形式填空。

4．My mother always buys clothes in that big clothes store.(buy)

5．Come and have a look at our clothes！They are on sale today.(sell)

(二)in，on，at，for表示“以，用”等的区别运用

Ⅲ.单项填空。

(C)6.Today you can buy the clothes in our store ________ our great sale.

A．in B．on C．at D．for

(C)7.Where can I buy a schoolbag ________ the price of two dollars?

A．in B．on C．at D．for

(A)8.Now I can sing(唱) about ten songs(歌曲) ________ English.

A．in B．on C．at D．for

(B)9.We have hats ________ red ________ only ten yuan.

A．for；at B．in；for C．for；in D．on；in

(B)10.The black shorts ________ 15 yuan.

A．is on sale B．are on sale for

C．are on sale D．is on sale for

(B)11.The girl will call her mother ________ 651－3219.

A．in B．at C．on D．with

(C)12.Look！There are many shorts ________ sale in that store.Let's go and buy some.

A．in B．at C．on D．for

Ⅳ.将下列句子中汉语部分译成英语，注意使用适当的形式。

13．The woman wants to sell her radio at__the__price__of__ten__dollars．(以十美元的价格)

14To save money(为了省钱)，my parents usually(通常) only buy clothes__on__sale．(特价出售的衣服)

15．In our shop you can buy sweaters in red for only eight dollars/red sweaters for only eight dollars．(仅卖八美元的红色毛衣)

,三、基础知识运用

Ⅰ.单项填空。

(A)1.—What's the ________ of this T－shirt?

—It's 20 dollars.

A．price B．color

C．name D．number

(B)2.—Mom，this skirt is nice.Can you ________ it for me?

—OK.How much is it?

A．find B．buy C．want D．sell

(A)3.Aunt Mary has a clothes store.She ________ nice T－shirts.

A．sells B．buys C．needs D．gets