四级练习2012.11.09 first, phone, listening, teacher, calling

Rebecca949

Professor Wang is a physics teacher in Beijing. Once she was explaining to one of her classes about sound. (1)_________________________. "I have an uncle in Xinjiang," she said, "Suppose I was calling him on the phone from here and at the same time you were 25 metres away, listening to me. Who would hear me first, my uncle or you - and for what reason?" Ma Hua at once answered, "Your uncle, professor,(2)_____________________." "Good," said the professor, but then another boy raised his hand. "Yes, Li Ming?" said Professor Wang. "Of course your uncle would hear you first," Limin said, "but that's because of the time difference. (3)___________________________."

本帖隐藏的内容需要回复才可以浏览

y-why

回复 1# Rebecca949

zhant220

1. she decided to text the students to see how well they had understood her
2. because sound wave drive slower than electricity
3. when its 9 o'clock here, its 7 o'clock in Xinjiang

忽然想你

支持一下