初一英语上册Unit7知识点归纳与同步练习.doc

Unit 7 How much are these pants?
Section A
【视野聚焦】
重点短语
1. how much （价钱）多少
2. seven dollars 七美元
3. a red sweater 一件红色的毛衣
4. want a sweater 想要一件毛衣
经典句型
1. How much is this T-shirt? 这件毛衣多少钱？It’s seven dollars. 七美元。
2. How much are these socks? 这些袜子多少钱？They are two dollars. 两美元。
3. Can I help you? 要我帮忙吗？ / 您要买什么？
4. I want a sweater. 我想要一件毛衣。
5. What color do you want? 您想要什么颜色的？
6. Here you are. 给你。
7. I’ll take it. 我买了。/ 我要了。
学海拾贝】
◆1. How much are these pants?
（1）how much在这里用来询问物体的价格，回答时用 “It’s + 价钱” 或 “They’re + 价钱”。
●例如：这块手表多少钱？ 100美元。
How much is this watch? It’s 100 dollars.
●这些土豆多少钱？ 两美元。
How much are these potatoes? They are two dollars.
询问价钱时我们还可以用到以下的句子：
What’s the price of….?
How much do/ does ... cost?
●例如：这件红色的毛衣多少钱？
What’s the price of this red sweater?
=How much is this red sweater?
●你的手表多少钱？
How much does your watch cost?
=How much is your watch?
思维拓展
How much 还可以与不可数名词连用，用来提问量的多少。
※ How much water is there in the bottle? 瓶子里有多少水？
※ How much milk do you need? 你需要多少牛奶？
询问数量的多少还可以用how many，how many用来提问可数名词的量，回答时可以用完整的句子，也可以用简单的数字。
※ How many apples do you have? 你有多少个苹果？
I have two apples. 我有两个苹果。
※ How many brothers do you have? 你有几个兄弟？
Only one. 只有一个。
（2）pants的意思是“裤子”，是美式用法，英国人一般说“trousers”。成双成对的东西一般用复数形式，be动词也相应地用are，而不用is。类似的单词还有socks（袜子），shoes（鞋子），shorts（短裤），scissors（剪子）等。
●例如：我的鞋子在床底下。
My shoes are under the bed.
●我可以用你的剪子吗？
May I use your scissors?
这些成双成对的东西我们也可以用量词pair（一双，一对，一副…）来表达。
●例如：我喜欢这条裤子。
I like this pair of pants.
●我想要一双新袜子。
I want a pair of new socks.
◆2. It’s seven dollars.
dollar的意思是“美元”，是美国、加拿大等国的货币单位，符号为$，dollar有复数形式dollars。
链接：中国的人民币单位是yuan，符号为￥，yuan无复数形式。
●例如：这顶帽子5美元。
This hat is 5 dollars.
●我的裙子100元。
My skirt is 100 yuan.
其他的还有：英镑￡ 　　pound
法郎FRF French Franc
马克 DM Mark
◆3. Can I help you?
（1）这是询问别人是否需要服务时的常用语，在不同的场合有不同的翻译。
在商店里：您想买什么？
在饭店里：您想吃点什么？
在图书馆：您要借什么书？
在公共场合看见别人有麻烦时：我可以帮你吗？/ 要我帮忙吗？
另外提供帮助的句子还有：May I help you? What can I do for you?
不能说“What do you want?”，这样显得很没礼貌。
回答时可以用以下的句子：Thank you. I want… 谢谢，我想要…
Yes, please. I’d like… 是的，我想…
No, thanks. I’m just looking around. 不，多谢。我只想到处看看。
●例如：您要买什么？ 我想买些香蕉。
Can I help you?
Yes, please. I’d like some bananas.
●您买东西吗？ 我想买件毛衣。
What can I do for you?
Thank you. I want a sweater.
思维拓展
当服务员问“Can I help you?”或 “What can I do for you?”时，顾客可以说：
※ I am looking for a coat. 我想买一件上衣。
※ I’d like to have a pair of shoes.我要买双鞋子。
※ Could I look at that blue bag? 我可以看看那个蓝色的包吗？
※ Could you show me that hat? 可以把那顶帽子拿给我看一下吗？
※ No, thanks. I’m just looking around.
I’m just having a look. 不用了，谢谢。我只是到处看看。/ 随便逛逛。
（2）help在这里是动词“帮助，援助”的意思。常用短语有help sb (to) do sth.帮助某人做某事，help sb. with sth帮助某人某事。
●例如：我经常帮妈妈做家务。
I often help my mum (to) do the housework.
●杰克常帮我学英语。
Jack often helps me with my English.
特别提示
help还可以当作名词“帮助；援助”，是不可数名词。
※ We must give them some help. 我们必须给他们一些帮助。
※ With teacher’s help, we solve the problem. 在老师的帮助下，我们解决了这个难题。
◆4. I want a sweater.
want 动词， 是“想要；需要；希望”的意思。不用进行时态，后跟名词、代词或动词不定式等。主语是第三人称单数时，动词要用第三人称单数形式wants。
想要某物 want sth. 想要做某事 want to do sth. 想让某人做某事 want sb. to do sth.
●例如：我想要件T恤衫。
I want a T-shirt.
●我想要回家。
I want to go home.
●妈妈想让我多喝牛奶。
My mother wants me to drink more milk.
◆5. What color do you want?
在讲英语的国家的商店里购物，服务员询问顾客想买的商品的特征时可以说：
What…do you want? 或 What …, please?
●例如：您要多大尺寸的？
What size do you want? / What size, please?
●您要哪一种？
What kind do you want? / What kind, please?
◆6. Here you are.
这是一个习惯句型，用以向对方展示所需要的东西，意思是“给你”。它是句型You are here.的倒装句，但两句的意思有很大差别。后者的意思是“你在这里”。类似的表达结构还有：Here it is. Here they are.
●例如：这是你的书吗？
Is this your book?
●是的。
Yes, it is.
●给你。
Here you are.
●谢谢。
Thank you very much.
◆7. I’ll take it.
这句话的意思是“我买下了/我要了。”这是购物时的一句常用语。当顾客选好商品时，常常说：I’ll take it.或I’ll have it. 而不经常说：I’ll buy it.

【牛刀小试】
单项选择
( )1. How much the salad?
A. is B. are C. do D. does
( )2. --- these socks?
---They’re ten dollars.
A. How many are B. How many is C. How much are D. How much is
( )3. The T-shirt is seven and the pants are seventy .
A. dollars; yuans B. dollar; yuan C. dollars ; yuans D. dollars; yuan
( )4. ---Can I help you?
---Yes, please. I want .
A. a skirt B. a skirts C. skirts D. skirt
( )5. Here some orange for you.
A. is B. are C. be D. have
( )6. She wants shopping.
A. to goes B. to go C. going D. goes
( )7. How much do you want?
A. French fries B. tomatoes C. hamburgers D. chicken
( )8. The sock are very cheap（便宜）. I’ll them.
A. bring B. like C. take D. buys
( )9. ---How much are these black shorts?
--- .
A. It’s ten yuan B. It’s 10 yuans C. They’re 10 yuan D. They’re 10 yuans
( )10. ---Can I help you?
--- .
A. You’re welcome B. Yes, please.
C. I’m sorry D. Here you are.
用所给词的正确形式填空
1. This green shirt is five (dollar).
2. The old man (want) some bananas.
3. How much (be) those pants?
4. I want (buy) a yellow ruler.
5. This hat is six dollars. I’ll (take) it .
6. (this ) shorts are 10 dollars.
7. Lucy (have) a book in her hand.
8. How many pairs of (shoe) do you want?
9. I like these black pants. Do you like (they)?
10. Please help me (buy) some vegetables.
逻辑排列
将下列句子按正确顺序排列成语句通顺的会话。
A. Here you are.
B. Can I help you?
C. The green one.
D. What color do you like?
E. Twenty dollars.
F. OK. I’ll take it. Thank you.
G. How much is it?
H. Yes, I’d like a sweater.
I. You’re welcome.
1. 2. 3. 4. 5.
6. 7. 8. 9.
根据汉语意思完成句子
1. ---红色的毛衣多少钱？ ---二十美元。
the red sweater?
It’s .
2. 黑色的裤子十美元。
The ten dollars.
3. 你想要什么颜色的？
do you ?
4. 我要买了。 I it.
【超越自我】
（ ）1. ---How much are these apples? （2004 哈尔滨）
--- .
A. Five yuan a kilo B. They are dear
C. They are red D. They are big
（ ）2. --- . （2004 四川）
--- I want a pair of sports shoes.
A. May I help you, sir? B. What do you want to buy, sir?
C. What do you do, sir?
3. 按词汇分类写出单词。 （2005 山西）
服装：
4. 根据下面的情景内容，从所给的选项中选出最佳答案。 （2005 青海）
A: Good morning. 1 .
B: Yes, please. I’d like to buy a tie for my father.
A: 2 .
B: Blue. My father likes blue best.
A: How about this one?
B: Oh, it’s very nice. 3 .
A: 50 yuan.
B: That’s too expensive. I can’t afford it. 4 .
A: Yes. This light blue one only 30 yuan.
B: Well, this one looks very good. And the price is OK. 5 .
A. How much is it?
B. I’ll take it.
C. What color do you want?
D. Do you have a cheaper one?
E. What about the yellow one?
F. Can I help you?

1. 2. 3. 4. 5.
【创新全解】
牛刀小试版块答案：
单项选择
1---5 A C D A A 6---10 B D C C B
用所给词的正确形式填空
1. dollars 2. wants 3. are 4. to buy 5. take
6. These 7. has 8. shoes 9. them 10. buy / to buy
逻辑排列
1. B 2. H 3. D 4. C 5. A 6. G 7. E 8. F 9. I
根据汉语意思完成句子
1. How much is; twenty dollars 2. black pants are 3. What color, want 4. will take
超越自我答案
1.A（How much是用来询问价格或数量，只有A是回答了价格，而B是说“太贵”，C是“红色”，D是“大小”，都不符合题意，故答案为A。）
2. A （根据回答可判断对话发生在商店里，上文是服务员询问对方买什么，在英语中服务员问顾客需要什么时，用较委婉的问法“Can I help you? / May I help you? 或What can I do for you?”，而很少说：What do you want to buy?。而C答案是问“你是做什么的”，显然不符合题意，故确切答案为A。）
3. 表示服装的词有很多：上衣coat, 裙子skirt, 裤子pants/ trousers, 毛衣sweater等等。
4. 1. F 2. C 3. A 4. D 5. B
1）根据B的回答我们可以判断出A是服务员，B是顾客。B说“Yes, please”，我们可判断A在问“Can I help you?您想要点什么”。故1选F。
2）根据blue我们可以知道上一句问颜色，故2选C。
3）根据A的回答50yuan，可以判断B在问价钱，故选A。
4）B前一句说“I can’t afford it.我买不起”可知他想要一个更便宜的，故4选D。
5）最后B说对这一件很满意，价格也合适，故选B选项：I’ll take it我买了。
Section B
【视野聚焦】
重点短语
1. clothes store 服装店
2. at Huaxing’s great sale 华兴服装大减价
3. at a very good price 以合理的价格
4. bags for sports 运动包
5. see for yourself 亲自看一看
经典句型
1. Come and buy your clothes at Huaxing’s great sale! 快来买衣服，华兴服装大减价了！
2. We have sweaters at a very good price—only ￥25! 我们有价格合理的毛衣，每件只卖25元。
3. Do you need bags for sports?您需要运动包吗？
4. For girls, we have T-shirts in red, green, and white for only ￥18! 我们有女孩子穿的红色、绿色和白色的T恤衫，每件只售18元。
5. For boys, you can buy socks for only ￥5 each! 男孩子们，你们只需花5元钱就能买一双袜子。
6. Anybody can afford our prices! 任何人都能接受我们的价格。
7. Come and see for yourself at Huaxing Clothes Store! 快亲自到华兴服装店来看看吧！
【学海拾贝】
◆1. Come and buy your clothes at Huaxing’s great sale!
（1）clothes 名词，意思是“衣服；服装”，是衣服的总称，包括上衣、内衣、裤子等。它只有复数形式，没有单数形式，所以不能用this, that来修饰，也不可以用a和具体的数词修饰，但可以用these, those, the , some, many, lots of等词来修饰。 clothes 作主语时，谓语动词也要用复数形式。
●例如：在我的商店里有很多漂亮衣服。
There are many beautiful clothes in my store.
●库尔服装店里的衣服都是红色的。
The clothes in Mr. Cool’s Clothes Store are all red.
（2）at Huaxing’s great sale意思是“华兴服装大减价”。at a great sale= on sale。
●例如：我经常在大减价时买衣服。
I often buy some clothes at the great sale.
= I often buy some clothes on sale.
思维拓展
sale是名词，意思是“出售；廉售”。其动词形式是sell，意思是“出售；卖”。
※ We sell many children clothes. 我们出售多种小孩衣服。
※ We sell pants for only ￥30. 我们的裤子每条仅售30元。
◆2. We have sweaters at a very good price—only ￥25!.
（1）at a very good price意思是“以一个非常合理的价格”。at the price of…表示“以…价格出售”。
price的意思是“价格”，常与介词of连用，表示“…的价格”。
●例如：这只表多少钱？
What’s the price of this watch?
=How much is this watch?
●这家商店出售的运动包每个售价10美元。
This stores sells the bags for sports at the price of $10 each.
（2）25是数词，读作twenty-five。 数词有两种：表示数目多少的数词叫做“基数词”，如：one, two, ten等；表示顺序先后的数词叫做“序数词”，如：first第一，second第二等。我们这个单元主要先学习基数词：⑥⑦
① 1---12的拼写与读音各不相同，无规律可循，要逐一记忆。
② 13---19表示“十几”，一般在个位数后加词缀teen，读作[ti:n], 需注意几个特殊的数字的变化：
one---eleven two---twelve three---thirteen four---fourteen
five---fifteen six---sixteen seven---seventeen eight---eighteen
nine---nineteen
③20---90表示“几十”，它们的拼写一般在个位数后加词缀ty，读作[ti]，其变化为：
two---twenty three---thirty four---forty five---fifty
six---sixty seven---seventy eight---eighty nine---ninety
④有关“几十几”的表达：用整十位数加个位数，中间用连字符“-”连接。
如：21 twenty-one 48 forty-eight
⑤ “百”用hundred, 表示“几百”就用具体数字加hundred。
如：100 one hundred 500 five hundred
特别提示
若在“百、千”这些单位前有具体数字既表示确切数量时，hundred, thousand等不需要用复数形式。如：三百 three hundred 六百 six hundred
若在hundred, thousand等单位前没有具体数字时，既没有具体说是“几百、几千”时，要用其复数形式，后面还要加of，这时的hundred, thousand等并非表示具体数字，而是强调数量之多。
如：hundreds of students 大量的学生，数以百计的学生
◆3. Do you need bags for sports?
bags for sports“运动包”，for是介词，表示“限制”，意思是“给…；为…；适合于…；供”。
●例如：我们专卖儿童服装。
We only sell clothes for children.
●给你的明信片。
Here’s the postcard for you.
◆4. For girls , we have T-shirt in red, green, and white for only ￥18!
（1）介词in+ 颜色，表示“什么颜色的”，作定语修饰名词，放在名词后面。
●例如：穿红毛衣的女孩是我的妹妹。
The girl in red is my sister.
●我想买一件绿色的T恤衫。
I want a T-shirt in green.
=I want a green T-shirt.
（2）for only ￥18 意思是“只需18元”，相当于at the price of ￥18。
●例如：你可以只花50元就能买一双鞋子。
You can get a pair of shoes for only ￥50.
=You can get a pair of shoes at the price of ￥50.
◆5. For boys, you can buy socks for only ￥5 each!
（1）buy动词，意思是“买”，其反义词是sell“卖，出售”。常用搭配：
buy sth from…从…买来某物 sell sth to…把某物卖给…
●例如：你可以从水果店买一些苹果。
You can buy some apples from the fruit store.
●布莱克先生将电脑卖给各个国家的人们。
Mr. Black sells the computers to the people in different countries.
（2）each的意思是“每一；各”，用来加以强调。它在句中的位置比较灵活。
●例如：他们每人都有一本词典。
They have a dictionary each.
=They each have a dictionary.
=Each of them has a dictionary.
●例如：这些书中的每一本都很有趣。
Each of these books is interesting.
◆6. Anybody can afford our prices!
afford动词，意思是“负担得起；付得起，买得起”，常与can, can’t, could, couldn’t连用，后直接跟名词；也可跟动词，跟动词时用动词的不定式形式：afford to do。
●例如：我们能买得起一辆小汽车。
We can afford a car.
●我们买不起那样的房子。
We can’t afford to buy that house.
◆7. Come and see for yourself at Huaxing Clothes Store!
see for yourself意思是“（你自己）亲自看一看”。
●例如：---《神话》这部电影怎么样？
What about the movie the myth?
你最好自己去看一看。
You’d better see for yourself.
for oneself 亲自, oneself叫做“反身代词”，反身代词常与以下动词及动词短语连用：dress oneself 自己穿衣, help oneself to …随便吃…, look after/ take care of照顾自己等，还有by oneself独立，自己。 其他反身代词还有：
我自己
你自己
他自己
她自己
它自己
我们自己
你们自己
他们自己
myself
yourself
himself
herself
itself
ourselves
yourselves
themselves
●例如：这个孩子太小了不能自己穿衣服。
The baby is too young to dress himself.
●孩子们，随便吃些鱼吧。
Help yourselves to some fish, children.
●我们不在时你要照顾好自己
Please look after yourself when we are away.
【牛刀小试】
单项选择
( )1. The car isn’t . I can’t buy it.
A. difficult B. interesting C. cheap D. boring
( )2. We only have clothes old people.
A. at B. of C. for D. on
( )3. has ￥100. What do you want to buy?
A. Each them B. They each C. Them of each D. Each of them
( )4. The green shoes are sale $30.
A. on’ on B. for; for C. on; for D. for; on
( )5. We have shirts all colors $20 each.
A. for; on B. in; for C. for; in D. at; for
( )6. Come down to the shop and see for .
A. you B. your C. yours D. yourself
( )7. The boy the blue shorts is my brother.
A. on B. in C. of D. over
( )8. There are trees on each side of the road.
A. two hundreds B. two hundred of C. hundreds of D. hundred of
( )9. --- are those socks?
---They are ￥10.
A. How many B. What color C. How much D. How
( )10. Helen’s are blue.
A. skirt B. pants C. sweater D. shoe
句型转换
1. The shirts are only ten dollars. （对划线部分提问）
the shirts?
2. My shoes are black. （对划线部分提问）
your shoes?
3. How much is this soccer? （同义句改写）
of this soccer?
4. --- the