Unit 7 How much are these socks?Grammar：基数词1.询问价格1）How much is +单数商品？How much are + 复数商品？It’s + 钱They’re + 钱2）What’s the price of + 商品？It’s + 钱price表示价格高低时，用high，low不用expensive，cheap。
The price of the shoes is high.这双鞋的价格很高。
①这件红色的裙子多少钱？100元。
How much is the red skirt? It is 88 yuan.What is the price of the skirt? It is eighty-eight yuan.②这条蓝裤子多少钱？30美元。
How much are these trousers? It is 100 yuan.What is the price of these trousers? It is one hundred yuan. 3）英美等西方国家的货币单位像dollar（美元）、cent（美分）、pound（英镑）、penny（便士）、shilling（先令）等有单复数变化。
我国的货币单位元（yuan）、角（jiao）、分（fen）单复数一样。
△表示货币等度量衡单位的词在句中作主语时，谓语动词用单数形式。
100 dollars is quite a lot of money for him. 100美元对他来说是相当多的钱。
4）how many/how much询问数量how many + 可数名词，how much + 不可数名词你有多少苹果？How many apples do you have?你想要多少水？How much water do you want?2. socks短袜, shoes鞋, shorts短裤,trousers裤子,glasses眼镜,scissors剪刀等都是成双成对的物品，一般以复数形式出现，作主语时谓语动词用复数形式。
但它们和a pair of （一双、一副或一对）连用作主语时，谓语动词要与pair在数上一致。
The shorts are Tom’s. 这条短裤是汤姆的。
The pair of shorts is Tom’s. 这条短裤是汤姆的。
5. Can I help you? 我能帮助你吗？此句是主动提供帮助时的服务用语。
它的翻译随着场所的不同而不同。
在饭店：你想吃点什么？在商店：你想买点什么？在其它公共场合：需要帮忙吗/May I help you? What can I do for you? Is there anything I can dofor you? 不用What do you want？显得没有礼貌肯定回答：Yes, please.I'd like …Thank you，I want ...否定回答：No, thanks. (…)与Can I help you?同义的常用表达还有：May I help you?/What can I do for you?/ Is there anything I can do for you?6.I need a sweater for school.need 可作实义动词，“需要”后可以接名词，代词，动词不定式等作宾语。
I need a hat.Where's his pen?He needs it .We need to eat healthy food.need也可作情态动词，后接动词原形“需要”一般用于疑问句或否定句中。
---Need we go so soon?我们需要走这么早吗？---No,we needn't.不，不必。
for 介词，表示目的，“为...”need...for... “需要...去做...”We need some color pencils for the art class. 我们需要带一些彩色粉笔上美术课。
6. want sth 想要某物我想要个苹果。
want to do sth. 想要做某事他想打篮球want sb. to do sth. 想要某人做某事我想要他帮助我want to be sth. 想要成为他想成为一名歌手7.Here you are.给你。
---May I use your ruler? ---Of course,here you are.寻物时若是自己发现常说“Here it is”或“Here they are”意为“终于找到了”。
当你乘车到站时，司机或售票员通常会说“Here you are”意为“你到站了”。
8. It looks nice.它看起来很漂亮。
Look“看起来；看上去”，连系动词，后接形容词作表语。
9.I’ll take it.I’ll take them. 我买了。
take动词，“买下”相当于buy get have I’ll take\buy\ get\ have them.take动词“拿，取”Please take some books to the classroom.请拿些书到教室去。
10.Two dollars for one pair and three dollars for two pairs.两美元一双，3美元两双。
For介词此处用来帮助表示物品的价格。
用法：价格+for+具体物品How much is it for three?买三个多少钱？7.Here you are.给你。
---May I use your ruler? ---Of course,here you are.寻物时若是自己发现常说“Here it is”或“Here they are”意为“终于找到了”。
当你乘车到站时，司机或售票员通常会说“Here you are”意为“你到站了”。
10.表感谢的用语：Thank you / Thank you very much / Thanks / Thanks a lot / Many thanks.回答感谢的用语：That’s all right / That’s OK. Not at all. You’re welcome.e and buy your clothes at our great sale! 我们在大甩卖，快来买衣服！1）come and do sth 来做某事，and连接的两个动作一先一后。
Come and see us. 来拜访/ 看看我们吧。
Please come and have dinner with us. 请来跟我们吃顿饭吧。
2）on sale 出售；廉价出售相当于at a /one's great sale“大甩卖，大促销，大降价”for sale待售big sale大降价房子在待售毛衣在出售3）buy sb. sth. = buy sth. for sb.给某人买某物buy my mother a sweater = buy a sweater for my mother给我妈妈买了件毛衣△sth若是代词，只能用buy sth. for sb. buy it for him12.We sell all our clothes at very good prices.我们卖的所有服装价格都很优惠。
1）sell及物动词出售，销售，卖反义词买buysell sb. sth.=sell sth. to sb. 卖某物给某人△sth若是代词，只能用sell sth. to sb. sell it to himThey sell me the books.=They sell the books to me.他们把书卖给我。
2）at very good prices 以合理/优惠的价格at high prices 以很高的价格the price of... ...的价格12.For girls，为have skirts in purple for only ＄20.对于女孩子，我们有紫色的裙子，仅售20美元。
skirts in purple相当于purple skirts 紫色的裙子in 介词+颜色...颜色的，穿...颜色的... +衣服穿着...We have bags in all colors.我们有各种颜色的包。
The woman is in a yellow coat.那位女士穿着一件黄色的外套。
13.for的用法1）供……用，给……的Is this apple for me?这个苹果是给我的吗？Here is a letter for your mother. 这儿有你妈妈的一封信。
2）作……用（表用途）Do you need bags for sports?你需要运动包吗？I need a cup for milk. 我需要一个装牛奶的杯子。
3）就……而言，对于……来说For lunch, I like hamburgers and salad. 午饭我喜欢汉堡和沙拉。
For girls, we have T-shirts in all colors.女孩子们可以买到各种颜色的T恤衫。
4）以……的价格（表交换、价格）You can buy socks for only 5 dollars each. 你可以买到每双只卖5美元的袜子。
5）for oneself 亲自Come and see for yourself.你亲自来看看吧。
15. have a look at = look at看一看。
