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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

– Andy, could I borrow your       for a few hours? I have to go to the airport to pick up my aunt.

 – Sure, here is the key. Be careful on the road.

A. car                         B. computer                     C. phone

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.”
【小題1】Mosquitotone works because ________.

People are often killed while c___73______ the road. Most of them are old people and c____74____. Old people are often killed because they are careless. People should look and listen b____75____ they cross the road. A car, a truck or a bus can’t stop very q___76_____ if it is going very fast. It will travel many meters before it s____77_____. Pedestrian(行人)don’t know this. They think that a car can stop right away. It is h___78_____ for a pedestrian to know how fast a car is traveling. The only s____79____way to cross the road is to look at b___80____ ways, right and left. The correct way to cross the road is t___81____ walk quickly when the traffic l__82____ turn green.

A young man was getting ready for graduation. He always wanted a beautiful sports car, and he told his father this. On the morning of his graduation, his father called him into his study. His father told him how proud he was to have such a fine son, and told him how much he loved him. He handed his son a beautiful box. The young man was disappointed when he opened the box and found a book. He shouted angrily,“With all your money you give me a book?”and rushed out of the house.
Many years passed and the young man was very successful in business. He had a beautiful home and a wonderful family, but he realized his father was very old and thought he should go to see him. Before he made a visit, he got a call telling him his father had passed away(去世).He was also told his father had given all his possessions to him. When he arrived at his father’s house, sadness filled his heart.
He began to see his father’s important papers and saw the still new book. With tears, he opened the book and began to turn the pages. As he read the words, a car key dropped from an envelope in the book. It was the key to a sports car.
【小題1】The young man wanted his father to buy him a       .