It’s magic time！ Come on！ I will show you something interesting.

Jokes

A dog is barking（吠） at Mary. Mary is afraid.

Mary’s dad says， “Don’t be afraid， dear. Do you know the saying？ Barking dogs don’t bite.*”

“I know the saying，” says Mary. “But does the dog know it， too？”

Can you tell me anything about the great scientists of the 18th century（世紀(jì)）？*

Yes， sir， I can. They are all dead*.

Brain Teasers

What can you stop* with one hand？

What do you write with， your left hand or your right hand？

（answers on Page 39）

閱讀小助手

Barking dogs don’t bite. 會叫的狗不咬人。

Can you tell me anything about the great scientists of the 18th century？

你能告訴我任何與18世紀(jì)的偉大科學(xué)家有關(guān)的東西嗎？