Unit 7 How much are the pants?
知识讲解与练习
A
一．询问价格: how much
1. ______ ______ is +　_______？ ______ _______ are + _________？
_______ + 钱 _________ + 钱
【习题】1. 这件红色的裙子多少钱？100元。
___________________________________ _________________________
2. 这条蓝裤子多少钱？30美元.
______________________________________ _______________________
2. What’s the price of + 商品？
It’s + 钱
【习题】1. 这件红色的裙子多少钱？100元。
________________________________ _________________________
2. 这条蓝裤子多少钱？30美元.
___________________________________ ______________________
【习题】写出同义句
How much is the sweater？＝_______ _____ _________ _____ the sweater？
How much are the socks？＝_______ _____ _________ _____ the socks？
3. how much “多少”，对不可数名词的数量进行提问。
How much milk do you want? 你想要多少牛奶？
4. 比较：
how
much
(1)用于提问不可数名词的数量。how much + 不可数名词
(2)用于提问价格。

how many
用于提问可数名词的数量。how many + 可数名词
How many pears do you have? 你有多少梨？

【习题】5. 选择：
（1）—______ is your watch? —It's eighty yuan.
A．How much　　B．What C．How D．What color
（2）How much______
do you have?
A．sock B．water C．pear D．shirt
（3）______ socks does he want?
A．How much B．What C．How D．How many.
(4)—How much are the black socks? —__________________.
A. It's 10 yuan. B. It's 10 yuans.
C. Th
ey're 10 yuan. D. They're 10 yuans.
【习题】6. 用 be 的适当形式填空；
How much_______ that pen? How much salad____ there in the bowl?
How much _______ these tomatoes? How much _______the shorts?
— How much _____the red skirt? — It _____ 6 $.
— How much ____these black pants? —They___10 $.
二. 基数词的用法：
基数词只能修饰可数名词，要注意数词和名词在数上要保持一致。如：
一名学生_____________________ 二十个苹果 ______________________
三十三个鸡蛋___________________ 两名男孩 _______________________
【习题】 —How much are these Tshirts? —______.
A．It's 20 yuan
B．It's 20 yuans
C．They are 20 yuan D．They are 20 dollar
【习题】 Twelve plus(加) twentyeight is ______.
A．forty B．four C．fourteen D．fourty
【习题】The road is over ______ metres long.
A．six hundred and fiftytwo B．six hundreds and fiftytwo
C．six hundred，fiftytwo D．six hundredfifty and two
【习题】 —How old is he?
—He is ______.
A．thirty nine B．thirtynine C．threetynine D．threety nine
三. 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___quite a lot of money for him. 100美元对他来说是相当多的钱。
四. socks袜子, shoes鞋, pants裤子,trousers裤子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。
例如：　Are those trousers Jim’s? The shorts are 58 dollars.
【相关链接】
如果这类词前面有“…pair (s) of (……条/双)”修饰时, 谓语动词就要根据pair的单复数形式发生相应的变化。
The pair of trousers is 98 yuan.这条裤子98元。
Two pairs of blue shoes are 200 dollars.两双蓝色的鞋200美元。
【习题】 用 be 的适当形式填空；
1. The pants _____Tom’s. 这条裤子是汤姆
的。
2. The pair of pants_____Tom’s. 这条裤子是汤姆的。
3. I don't like this pair of socks.I want to buy a new ______.
A．one B．skates C．skate D．pair
五. 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？ 肯定回答：Yes, please. … 否定回答：No, thanks. (…)
　与Can I help you?同义的常用表达还有：What can I do for you?/ May I help you?/Is there anything I can do for you?
【习题】 —______ —Yes，please. I want a bag.
A．How are you? B．Can I help you?
C．Excuse me. D．What's your name?
六. need v. “需要”，是实义动词。三单 ___________
1. need sth.“需要……”。need 的主语是“人”。
I _______ _______ ________ 我需要两支铅笔。
2. need to do sth.需要做某事need 的主语是“人”。
I need to call him. 我需要给他打个电话。
3. 变否定句和一般疑问句时要加助动词。
_______ you need any help? 你需要帮助吗？
【习题】1．He needs to play sports.(变为否定句)
He ______ ______to play sports.
2．He is ill(病了)and he needs ______(see)a doctor(看医生)．(用词的适当形式填空)
七. It looks nice. 它看起来很漂亮。
look v．看；看上去
1. 作动词“看”讲时，是不及物动词，即后面不能直接跟宾语的动词。look可单独使用。如果表达“看某人或某物”，look后接介词at，相当于have a look at。
Look at the pen.What color is it?
2. 作动词“看上去”讲时，后接形容词作表语。
He looks fine. 他看上去气色很好。
【习题】1. Look ______ the jacket，please.
A．to B．at C．in D．/
2. 翻译句子，每空一词。
看！你爸爸看上去身体很好。______！Your father ______ ______.
3. I ______ the tree，but can't ______ a bird.
A．look；see B．watch；see C．look at；see D．see；look
八. I'll take it.我买了。
1. 此句是选好商品并决定购买时的常用语。在西方国家，顾客在商场购物并决定买某种商品时，常说“I'll take it/them.”或“I'll have it/them.”而一般不说“I'll buy it/them.”。
2. I'll，是I will的缩写，will是助动词，表示“将要”，用于表示将来(要)发生的事。
I'll go to Nanjing.我将要去南京。
3. take 在句中的意思是“买”，相当于buy/get/have。
The skirt is nice.I'll take it. 这裙子不错，我买了。
4. take v．“拿走，带到”，常用于以下结构：
take sb.sth.(相当于take sth.to sb.)把某物带给某人。
“Please take your father the hat.”相当于
“Please take the hat to your father.”(请把这顶帽子带给你的爸爸)。其反义词是bring“带来；拿来”。
5. take sb./sth.to＋某地　把某人或某物带到某地
Take the boy to the park. 带这个男孩到公园。
【习题】—How ab
out the red shorts? —Very nice.I'll ______.
A．get it
B．take them C．buy it D．have it
【习题】Your mother needs her notebook.Please ______.
A．bring her it　　 B．bring it to her
C．take it to her D．take her it
九. You're welcome.不用谢。You are welcome.
= _______________________ = _______________________
= ________________________ = ___________________________
十．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 __________________________.
十一. . Here you are.给你。=______________________
十二. ]woman n．女子 其复数形式为women。
Some women are in the room. 一些女人在房间里。
其对应词为man，复数形式为men。
当woman，man作定语修饰名词复数时，woman，man也要用复数形式。
I like women doctors. 我喜欢女医生。
【习题】 Some ______ teachers and ______ teachers are in our school.
A．woman；man B．women；man
C．women
；men D．woman；men
B
一. come v. “来，来到”，反义词是go。come是不及物动词，其后不能直接接宾语，接宾语时要接相应的介词。但是当其后接here，there，home等副词时，不用介词。
Please______ _____ my house. 请来我家。Come_________！ 到这儿来！
The boy ______ to this school to learn Chinese every day.
A．come　　　　 B．coming C．comes D．to come
二. sale n. 出售；降价销售
It's a sale of winter clothes. 那是一次冬装大廉售。
1. on sale 促销中; 出售；廉价出售
The shirts are on sale. They're very cheap. 这些衬衫在大甩卖，它们很便宜。
2. for sale (尤指个人所有物) 待售
The computer is for sale. 这台电脑待售。
1）房子在待售The house __________
2）毛衣在出售 _____________________
3. sell v. “卖，销售”，sale的动词形式，buy的反
义词。
(1)sell sb.sth.＝sell sth.to sb.把某物卖给某人
They want to sell us the car.
＝They want to sell the car to us.他们想把汽车卖给我们。
【习题】Please help me ______ the erasers to students.
A．sells B．to sell
C．buys D．to buy
三. We sell all our clothes at very good prices.我们卖的所有服装价格都很优惠。
at very good pri
ces 以合理/优惠的价格
四. 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. or oneself =by oneself 亲自
Come and see for yourself.你亲自来看看吧。
五. buy v
．购买；买
1. buy sth. I want ______ ______ a computer. 我想买台电脑。
2. buy sb.sth.＝buy sth.for sb.给某人买某物 buy it for him
His parents want to buy him a sweater.
＝His parents want to buy a sweater for him.
他父母想给他买一件毛衣。
3. buy sth.from sb./somewhere从某人/某处买某物
Can you buy a book from my brother? 你从我弟弟那儿买本书可以吗？
Mary wants to ______ a white jacket from Huaxing Clothes Store.
A．buy B．help C．see D．come
【习题】同义句转换。
Can you buy me a ball? Can you ______ a ball ______ ______？
六． clothes n．“(pl.) 衣服，服装”。
1. 作主语时，谓语动词用复数形式。“一套衣服”用a suit of clothes表示。
I
like beautiful clothes. 我喜欢漂亮的衣服。
2. clothes不能用数词直接修饰，但可用these，those，many，few等词修饰。
Don't buy too many clothes for her! 不要给她买太多衣服！
【习题】I like nice ______.
A．clothes B．sweater C．jacket D．pant
七. price n. “价格”，
1. 询问价格用 “What's the price of...？”句式，相当于 “How much is/are...？”结构。
What's the price of the computer？
＝How much is the computer？这台电脑多少钱？
2. at a/an/the＋adj.＋price 表示“以……的价格”，表示价格的高低用high和low，不能用expensive/dear(贵的)/cheap(便宜的)等来修饰。
The price of the watch is low.＝The watch is too cheap.这块表很便宜。
【习题】The ______ of that ruler is very high.
A．price B．price C．a price D．an price
八. 物品＋in＋颜色＝颜色＋物品
She has a sweater in red.＝ She has a red sweater.
她有一件红色的毛衣。
【习题】—Do you know that boy ______ black?
—Yes，I do.He is Tony.
A．on B．in C．at D．behind