B. 阅读短文，完成下列购物清单。
My Mother’s Shopping List
Hello, my name is Li Ming. I am a Grade 7 student. My mother is busy every day. This weekend, she asks me to go shopping with her because we need many things to prepare for my sister’s birthday. She makes a shopping list.
We need many things for our family. First, we need some fruit. My father likes apples. My mother likes oranges. I like bananas very much. So we need apples, oranges and bananas. They are healthy fruit.
Second, we need some vegetables. We need carrots, potatoes and tomatoes. My mother says vegetables are good for our health. I like carrots, but my father doesn’t like them.
We also need some food and drinks. We need two bottles of milk, some bread, eggs and rice. Milk and bread are my breakfast.
My mother wants to buy a small birthday cake and some candies for my sister. She will be very happy.
We will go to the big supermarket near our home this Saturday afternoon. I think it will be fun to go shopping with my mother.

1. This Saturday afternoon
2. Some fruit: apples, oranges and bananas
3. Some vegetables: carrots, potatoes and tomatoes
4. Some food and drinks: two bottles of milk, some bread, eggs and rice
5. A small birthday cake and some candies for my sister
6. we need many things to prepare for my sister's birthday, and the food we buy is good for our health

我们可以从短文中定位对应信息完成填空：
1. 从短文最后一段第一句"We will go to the big supermarket near our home this Saturday afternoon." 可直接提取购物的日期信息。
2-5. 按照短文介绍的购物物品顺序，依次梳理出四类需要购买的物品，分别是水果、蔬菜、食品饮品、给妹妹准备的生日相关物品。
6. 结合第一段说明的购物初衷，以及文中提到的食物对健康有益的内容，整理出购物的原因。