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Unit 7 Being a Smart Shopper 单元知识点梳理
一、重点单词
1. shop / p/ v. 购物；n. 商店（短语：go shopping 去购物；a clothing shop 服装店）
2. supermarket / su p mɑ k t/ n. 超市
3. product / pr d kt/ n. 产品；商品
4. price /pra s/ n. 价格；v. 定价（短语：low price 低价；high price 高价）
5. cheap /t i p/ adj. 便宜的；廉价的（反义词：expensive；副词：cheaply）
6. expensive / k spens v/ adj. 昂贵的（反义词：cheap/inexpensive；副词：expensively）
7. discount / d ska nt/ n. 折扣；v. 打折（短语：at a discount 打折；give a discount 提供折扣）
8. save /se v/ v. 节省；储蓄；拯救（短语：save money 省钱；save time 省时间）
9. spend /spend/ v. 花费；度过（过去式/过去分词：spent；短语：spend money on sth 在某物上花钱；spend time doing sth 花费时间做某事）
10. cost /k st/ v. 花费；使付出代价（过去式/过去分词：cost；主语为物）
11. pay /pe / v. 支付；付费（过去式/过去分词：paid；短语：pay for 为……付费；pay money for sth 为某物付钱）
12. choose /t u z/ v. 选择；挑选（过去式：chose；过去分词：chosen；短语：choose from 从……中选择）
pare /k m pe (r)/ v. 比较；对比（短语：compare...with... 把……和……比较；compare...to... 把……比作……）
14. quality / kw l ti/ n. 质量；品质（短语：good quality 质量好；poor quality 质量差）
15. brand /br nd/ n. 品牌；牌子（短语：famous brand 名牌）
16. online / n la n/ adj. 在线的；adv. 在线地（短语：online shopping 网上购物）
17. customer / k st m (r)/ n. 顾客；消费者
18. prefer /pr f (r)/ v. 更喜欢；偏爱（短语：prefer sth to sth 比起某物更喜欢某物；prefer to do sth 更喜欢做某事）
19. worth /w θ/ adj. 值得的；有价值的（短语：be worth doing 值得做某事；be worth + 价格 值……钱）
20. wallet / w l t/ n. 钱包
21. receipt /r si t/ n. 收据；发票
22. return /r t n/ v. 退还；返回；n. 返回；退款（短语：return sth to sb 把某物退还给某人）
23. exchange / ks t e nd / v.&n. 交换；兑换（短语：exchange sth for sth 用某物交换某物）
24. need /ni d/ v. 需要；n. 需要；需求（短语：in need of 需要）
25. decision /d s n/ n. 决定；抉择（短语：make a decision 做决定）
二、重点短语
1. go shopping / do some shopping 去购物
2. on sale 促销；打折出售
3. at a discount 打折
4. save money 省钱
5. spend money on sth 在某物上花钱
6. spend time doing sth 花费时间做某事
7. cost sb some money 花某人多少钱
8. pay for 为……付费
9. compare prices 比较价格
10. good quality 质量好
11. famous brand 名牌
12. online shopping 网上购物
13. physical store 实体店
14. think twice 三思而后行
15. make a decision 做决定
16. return the product 退还商品
17. exchange for 交换
18. ask for advice 征求建议
19. give shopping suggestions 提购物建议
20. look for 寻找
21. pick out 挑选出
22. in need of 需要
23. be worth buying 值得购买
24. too expensive 太贵了
25. quite cheap 相当便宜
三、重点句型
1. —How much is this pair of shoes / What's the price of this pair of shoes
—It's 200 yuan.
（—这双鞋多少钱？—200元。）
2. —Which one do you prefer, the red dress or the blue one
—I prefer the red one because it's more suitable for me.
（—你更喜欢哪一条，红色连衣裙还是蓝色的？—我更喜欢红色的，因为它更适合我。）
3. This mobile phone costs me 3000 yuan.
（这部手机花了我3000元。）
4. I spent 2 hours shopping in the supermarket yesterday.
（我昨天在超市花了2小时购物。）
5. You should compare prices before you buy the product.
（你在买这个产品之前应该对比价格。）
6. You shouldn't buy things just because they are on sale if you don't need them.
（如果你不需要，你不应该仅仅因为促销就买东西。）
7. Can I return this Tshirt It's too small for me.
（我能退这件T恤吗？它对我来说太小了。）
8. Is it possible to exchange this pen for another one It doesn't work.
（能不能把这支笔换成另一支？它坏了。）
9. Why not try the online store The products there are much cheaper.
（为什么不试试网店呢？那里的产品便宜多了。）
10. It's important to think twice before making a shopping decision.
（做购物决定前三思而后行是很重要的。）
四、重点词汇辨析
1. spend, cost, pay, take
词汇 含义与用法 主语 常用搭配 例句
spend 表示“花费（时间/金钱）”，强调主动消费 人 spend + 时间/金钱 + on sth；spend + 时间/金钱 + (in) doing sth She spent 100 yuan on the book. / He spent 2 hours (in) playing games.
cost 表示“花费（金钱）”，侧重事物的价值 物/事 cost sb + 金钱；cost sb sth（如时间、健康） The book cost her 100 yuan. / Mistakes cost him the game.
pay 表示“支付（金钱）”，强调动作的完成 人 pay + 金钱 + for sth；pay sb 付钱给某人 She paid 100 yuan for the book.
take 表示“花费（时间）”，侧重过程的耗时 it（形式主语） It takes sb + 时间 + to do sth It takes her 2 hours to finish the homework.
2. cheap & inexpensive
词汇 含义与用法 例句
cheap 指价格低，暗含“质量差”的贬义倾向 The shoes are cheap but they broke in a week.（这双鞋很便宜，但一周就坏了。）
inexpensive 仅指价格低，中性词，无负面暗示 This inexpensive shirt is of good quality.（这件不贵的衬衫质量很好。）
3. choose & select
词汇 含义与用法 例句
choose 普通用词，侧重主观意愿的选择，范围较广 I choose this red hat because I like the color.（我选这顶红帽子因为我喜欢这个颜色。）
select 正式用词，强调“精选”，需经过仔细筛选 She selected a few good books for her little brother.（她给弟弟精选了几本好书。）
五、重点语法
1. 情态动词should/shouldn’t在购物建议中的用法
含义：should表“应该”，用于提出理性购物的合理建议；shouldn’t表“不应该”，用于提醒避免冲动消费或不当购物行为。
句式结构：
① 肯定句：主语 + should + 动词原形 + 其他
例：You should check the product quality before buying.（你买之前应该检查产品质量。）
② 否定句：主语 + shouldn’t + 动词原形 + 其他
例：You shouldn’t spend all your money on toys.（你不应该把所有钱都花在玩具上。）
③ 一般疑问句：Should + 主语 + 动词原形 + 其他？
例：—Should I buy this expensive bag （我应该买这个昂贵的包吗？）
—No, you shouldn’t. You don’t need it.（不，你不应该。你不需要它。）
2. 询问价格的特殊疑问句
常用疑问词：how much, what
典型句式：
① How much + be动词 + 主语？
例：How much is this jacket （这件夹克多少钱？）
② What’s the price of + 主语？
例：What’s the price of these apples （这些苹果多少钱？）
③ How much does/did + 主语 + cost？
例：How much does this watch cost （这块手表多少钱？）
3. 形容词的比较级与最高级在购物中的运用
含义：用于对比商品的价格、质量、大小等属性，辅助做出购物选择。
句式结构：
① 比较级：主语 + be动词 + 形容词比较级 + than + 比较对象
例：This shirt is cheaper than that one.（这件衬衫比那件便宜。）
② 最高级：主语 + be动词 + the + 形容词最高级 + 范围
例：This is the cheapest bag in the store.（这是店里最便宜的包。）
常用变形：cheap→cheaper→cheapest；expensive→more expensive→most expensive；good→better→best
4. 祈使句在购物场景中的用法
含义：用于店员提供服务或消费者、朋友间提出购物建议，语气直接或亲切。
句式结构：
① 肯定句：动词原形 + 其他
例：Try on this pair of shoes!（试试这双鞋！）
② 否定句：Don’t + 动词原形 + 其他
例：Don’t buy that product, its quality is poor.（别买那个产品，它质量很差。）
③ 委婉式：Let’s + 动词原形 + 其他
例：Let’s go to the supermarket to buy some food.（我们去超市买些食物吧。）
六、写作指导（如何成为明智的消费者/提购物建议）
1. 写作结构
部分 内容要点 常用表达
开头 点明明智购物的重要性，引出主题 Being a smart shopper is important because it helps us save money and buy reliable products. / Shopping is part of daily life, but we need to avoid unnecessary waste.
主体 分点阐述购物建议（对比价格、关注质量、理性消费、了解售后等） First, compare prices between online and physical stores. Second, focus on quality instead of just low prices. Third, don’t buy things on impulse—ask yourself if you really need them. Fourth, learn about return and exchange policies.
结尾 总结好处，呼吁理性消费 Following these tips can make us smart shoppers. Let’s make every shopping decision wisely!
2. 范文示例
How to Be a Smart Shopper
Shopping is a common activity in our daily life, but being a smart shopper is not easy. A smart shopper can buy good products without wasting money. Here are some useful tips to be a smart shopper.
First, compare prices carefully. Before you buy a product, check prices in both physical stores and online shops. Online products are often cheaper, but make sure you choose reliable stores to avoid fake goods.
Second, focus on quality, not just price. Some cheap products break easily, which will cost you more money in the long run. It’s better to choose products with good quality even if they are a little more expensive.
Third, don’t buy things on impulse. Many people buy products just because they are on sale, but they never use them later. Ask yourself: “Do I really need this ” before you pay for it.
Fourth, learn about the return and exchange policy. If the product is broken or doesn’t fit you, you need to know if you can return or exchange it. This protects your rights as a customer.
In short, being a smart shopper needs us to think twice before buying. Let’s follow these tips and make our shopping more meaningful!

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