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In many high schools，there are strict rules about using mobile phones. If your phone rings in class，for example，the teacher will be very angry.

Every mobile phone has a ringtone (鈴聲). It tells you that someone is calling you. Now，there is a ringtone called “mosquitotone (蚊子鈴聲)”. Using it，students can receive calls and text messages (短信) in class but the teacher will not realize what is happening. How?

Mosquitotone has a special sound. Only children and teenagers can hear it. As we get older，we are unable to hear some sounds with high frequencies (頻率). As a result，a child or teenager can hear the mosquitotone ringtone, but it’s_inaudible_to someone 20 or older.

But sometimes，people over 20 can hear the ringtone. One British student’s phone uses mosquitotone. In class，the student’s phone rang. The 32­year­old teacher looked at the student and became unhappy. “I heard that. You know the rule：no mobile phone in class.”

Not all the students are interested in mosquitotone. Jerry Jones，a high school student of 17，says，“Using mosquitotone too often is bad for our hearing. I may use it for pleasure，but not in class. It’s unfair to the teachers！”

What do parents think of mosquitotone？“I think it is perfect for places like movie theaters，” says Connie Neeson,44.“Think about it. Yon’re watching a film and someone’s mobile phone rings. Mosquitotone is good because many people don’t hear it. However，it also has a bad influence on their study if students use it in class.”

1.Mosquitotone works because ________.

A. it is very loud                  B. it has no sound

C. it has a beautiful sound         D. it uses high frequencies

2.The under lined part “it’s_inaudible_to” means “________”．

A. it can’t be seen by             B. it can’t be heard by

C. it isn’t popular with           D. it isn’t healthy for

3.The 32­year­old teacher felt unhappy because the student ________.

A. was late for class  B. didn’t do his homework

C. couldn’t answer her question          D. was using a mobile phone in class

4.Connie Neeson thinks that mosquitotone ________.

A. has no bad influence             B. is unfair to the teachers

C. has its advantage and disadvantage  D. can’t be used in any public place

Monty was the son of a horse trainer. When he was in his ninth grade, he was asked to write a __31__ about what he wanted to be and do when he grew up.
That night he wrote a seven-page paper saying that someday he’d __32__ a horse ranch (牧場). He wrote about his dream in great detail and he __33__ drew a picture of a 200-acre ranch with all the buildings.
He put a great deal of his __34__ into the project and the next day he handed it in __35__ his teacher. Two days later he received his paper back. On the front page was a large red F with a __36__ that read, “See me after class.”
The boy with the dream went to see the teacher after class and asked, “__37__ did I receive an F?”
The teacher said, “This is an __38__ dream for a young boy like you. You come from a poor family. Owning a horse ranch requires a lot of __39__. You have to buy the land. You have to pay for other things. There is no__40__ you could ever do it.” Then the teacher added, “__41__ you rewrite this paper with a more realisticgoal, I will reconsider your grade.”
The boy went home and thought about __42__ long and hard. He asked his father what he should do. His father said, “Look, son, you have to make up your own mind on this. However, I think it is a very important __43__ for you.”
Finally, after sitting with it for a week, the boy turned in the __44__ paper, making no changes at all. He said to the teacher, “You can keep the F and I’ll keep my   45 .”