Miss Gorgers taught physics in a New York school. Last month she explained to on

Miss Gorgers taught physics in a New York school. Lastmonth she explained to one of her classes about sound, and she decided to testthem to see how successful she had been in her explanation. She said to them,“Now I have a brother in Los Angeles. If I was calling him on the phone and atthe same time you were 75 feet away, listening to me from the street, which ofyou would hear what I said earlier, my brother or you and for what reason?”

Tom at once answered, “Your brother. Becauseelectricity travels faster than sound waves.” “That’s very good.” Miss Gorgersanswered, but then one of the girls raised her hand, and Miss Gorgers said,“Yes? Kate.”

“I disagree. Your brother would hear youearlier because when it’s 11 o’clock here and it’s only 8 o’clock in LosAngeles.” Kate said.

1.

 Miss Gorgers was teaching her class         .

A. how to telephone     B.about electricity   C. about time zone   D. about sound

2.

Miss Gorgers raised this question because she wanted toknow whether         .

A. it was easy to phone to Los Angeles

B. her student could hear her from 75 feetaway

C. her students had understood her lesson 

D. sound waves were slower than electricity

3.

Kate thought Tom was wrong because         .

A. clocks in Los Angeles showed a differenttime from those in New York

B. electricity was slower than sound waves

C. Tom was not good at physics at all

D. Tom’s answer had nothing to do with soundwaves

4.

Whose answer do you think is correct according to thelaws of physics?

A. Tom’s.   　 　 B. Kate’s.       C. Both A and B. 　  　D.Neither A nor B.

试题答案

【答案】

1.D

2.C

3.A

4.A

【解析】 略