1.学校分享会上，欣欣带来了“语音配对灯”。请你找出含有和down中的ow发音相同的单词，把它们和灯座连起来！

2. 淘淘打算用谜语的方式来让大家猜猜他喜欢的发明。请你听一听，圈一圈。

① I have wheels. People pull or push me to carry heavy things. You can see me in supermarkets. What am I?（A）
② I have sharp teeth. I help people cut wood. Lu Ban invented me long ago. What am I?（B）
③ I am a simple machine. I have a long arm. I help you lift heavy things. A seesaw is me. What am I?（C）
④ I help you open bottles. I am a kind of lever. What am I?（B）

3. 分享会上,四位同学展示了自己发明展板,但是展板的顺序被打乱了。请你听他们的介绍,先在圆圈内给展板用1—4编号,再为它们选择合适的标题。

A.Inventions for travel
B.Inventions for fun
C.Inventions for time
D.Inventions for study

(3—B 4—C 2—D 1—A)