一、 新语篇 垃圾换礼品活动 阅读短文，判断句子正(T)误(F)。
Have you heard of the three Rs: Reduce, Reuse, Recycle? They help us make less trash (垃圾). In Dunhuang, China, a scenic spot is doing something special: “Exchange trash for gifts.”
How does it work? Visitors get a bag, pick up trash, and then trade(交换) it for small free gifts like key chains. Cleaner Wang Keshou is happy to see so many visitors help. Mrs Yang, a visitor from Tianjin, thinks it's a great and meaningful activity. Her child enjoys picking up trash, and it teaches him not to litter.
The activity starts at 8:30 a. m. each day, and visitors can exchange trash for gifts an hour later. It will last until mid-October. This is a fun way to protect our environment together.
()1. 跨学科 地理知识 The “Exchange trash for gifts” activity happens in Gansu Province.
()2. Visitors can get gifts like key chains without picking up trash.
()3. Mrs Yang's child thinks picking up trash is boring.
()4. The activity starts at 8:30 a. m. and ends at 9:30 a. m. each day.

二、阅读短文，完成下列各题。
From old shells to new treasure
In a city by the sea, people love to eat seafood. After meals, many shrimp and crab shells are thrown away. They become rubbish.
Now, clever scientists have found a way to turn this old thing into treasure. They make a new material from old shells. It is very helpful for farmers. When it is put on fruits like lychees, it keeps the fruit fresh for a long time. It also stops bad germs and keeps the fruit sweet.
This material comes from nature, so it is safe. It is better than chemical things.
This material can also help fish and shrimp on farms. When it is put in water, it can clean the water and kill germs. Baby shrimp can grow better.
This smart idea turns waste into something helpful—for nature, for farmers, and for everyone!
词汇积累
trash /træʃ/ 垃圾 lychee /'laɪtʃi:/ 荔枝
（一）根据短文内容，补全对话。
1. —What do people do with the shells? —They them .
2. —What do scientists make from old shells? —A new .
3. —What can the material do for fruits? —Keep fruits .
4. —Is the new material safe? —Yes, it comes from .
（二）根据短文内容，回答问题。
Can the new material clean water?