十二、Lele 和爸爸去商店采购全家人旅行所需的服饰。根据上下文与促销广告,仿写正确的句子补全对话。(6分)
Lele: It's hot in Shanghai. Everyone needs a T-shirt.
Dad: OK. Let's buy three T-shirts. What else?
Lele: It's sunny too. We all need sunglasses.
Dad: OK. 1.
Lele is looking at the ad.
Dad: How much are three T-shirts?
Lele: 2. They are so cheap. We can buy them.
Dad: OK. How about three pairs of sunglasses?
Lele: They are 834 yuan. 3. Let's find some cheap sunglasses.
Dad: OK. Let's go!

1. Let's buy three pairs of sunglasses.
2. They are 80/eighty yuan.
3. They are (so) expensive.

【分析】
通读对话，梳理购物场景的逻辑：1处前Lele提出全家需要太阳镜，爸爸同意后需补全购买太阳镜的提议；2处询问T恤价格，结合后句“so cheap”需填低价；3处太阳镜834元，后文要找便宜的，需表达价格贵的含义，需结合上下文语境和购物常用语补全。
【解析】
1. 前文Lele提到全家需要太阳镜，爸爸回应“OK”后，应提出购买三副太阳镜的提议，故填“Let's buy three pairs of sunglasses.”；
2. 询问三件T恤的价格，结合后句“so cheap”可知价格为80元，故填“They are 80/eighty yuan.”；
3. 太阳镜价格为834元，后文说要找便宜的，说明价格贵，故填“They are (so) expensive.”。
【答案】
1. Let's buy three pairs of sunglasses.
2. They are 80/eighty yuan.
3. They are (so) expensive.
【知识点】
情景交际；购物用语
【点评】
本题结合日常购物场景考查英语补全对话，需结合上下文逻辑和常用购物用语作答，贴近生活，难度适中。
【难度系数】
0.4