Listen up

Step into reading. Step 3. Listen Up! Alexander Graham Bell's Talking Machine by Monica Culling.

《步入阅读》系列 第3级 听好啦！莫妮卡·卡林著《亚历山大·格雷厄姆·贝尔的会说话的机器》

Come here boy! Alexander Graham Bell wanted to show his brothers a trick.

小家伙过来呀！ 亚历山大·格雷厄姆·贝尔想给兄弟们秀个小把戏。

He could stroke the dog's throat,

他可以摸狗狗的喉咙，

Alex's father had taught him all about sound. Sound moves through the air in waves, said Papa.

亚历克斯的爸爸教过他所有关于声音的知识。 爸爸说，声音是以波的形式在空气中传播的。

When the waves hit your ear, you hear the sound.

当声波碰到你的耳朵，你就听到声音啦。

Come on!

来吧！