一、校园科技节开幕了。在展览大厅里，同学们正在展示自己的小发明。听句子，选出你所听到的单词。
（）1. A. invention B. inventor C. insect
（）2. A. photo B. phone C. prepare
（）3. A. feel B. freely C. feeder
（）4. A. exhibitions B. instruments C. inventions
（）5. A. autumn B. all C. always

1. A
2. B
3. C
4. B
5. A

二、“创意工坊”里，王老师正在演示如何制作简易的自动浇水装置。听短文，判断下列句子的正误，正确的写“T”，错误的写“F”。
()1. First, you need to find a plastic bottle and wash it clean.
()2. Next, you should make a hole at the bottom of the bottle.
()3. When making holes, you can ask your parents for help.
()4. When putting water in the bottle, you should make it full.
()5. The water will slowly run out and go into the earth.

1. T
2. F
3. T
4. F
5. T

三、环保展位的同学们正在讨论如何进行废物利用。听对话，补全表格。
Step | How to Do | What You Need
1 | 1. the milk box | milk box
2 | cut out 2. on the milk box | scissors(剪刀)
3 | make a 3. hole at the top and put a string through it | 4.
4 | put bird food in it and 5. it up | bird food

1. clean
2. windows
3. small
4. strings
5. put

四、讲解员正为大家答疑解惑。一起来看看同学们都有哪些疑惑吧。听句子，选择正确的答语。
()1. A. Stone and wood. B. Cai Lun. C. It's very helpful.
()2. A. Yes, they are. B. Yes, they did. C. Yes, he is.
()3. A. He made the new paper. B. He is clever. C. It was light and cheap.
()4. A. It changes our lives greatly. B. Paper is better than silk. C. Let's make it together.
()5. A. They have bright ideas and clever hands. B. We often read books every day. C. We can make waste into treasure.

1. B
2. B
3. C
4. A
5. A