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 (铃声). It tells you that someone is calling you. Now，there is a ringtone called “mosquitotone (蚊子铃声)”. 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 (频率). 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.”
【小题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

【小题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

【小题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

【小题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

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 (铃声). It tells you that someone is calling you. Now，there is a ringtone called “mosquitotone (蚊子铃声)”. 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 (频率). 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.”
【小题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

【小题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

【小题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

【小题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

In China , more and more middle school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night, because they have much homework to do. Some homework is given by their teachers, and some by their parents. Also, some students don't know how to save(节省) time. They are not careful enough while they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing computer games. They stay up (熬夜) very late. Some students have to get up early every morning on weekdays to get to school on time by bus or by bike. It can be a long way from home to school.
　　Schools and parents should cut down some of the homework so that our children can enjoy more than nine hours of sleep every night for their health. For children, we should make best use of（很好地利用） our time. When we have enough time for sleeping, we will find it much better for both our study and health.
【小题1】What makes most students sleep less than nine hours every night?

A．Watching TV.	B．Playing computer games.
C．Doing their homework.	D．Doing housework.

【小题2】Who else gives children some homework to do except their teachers?

A．Their parents.	B．Other students.
C．The children themselves.	D．Nobody else.

【小题3】How many hours of sleep is good for students' health?

A．Less than 9 hours.	B．Over 9 hours.
C．Only 9 hours.	D．8 hours.

【小题4】What would happen to a student who often goes to bed late and gets up early?

A．He would fall asleep in class.

B．He would do well in study.

C．He would finish his homework fast.

D．He would have good health.

【小题5】Which of the following is NOT true?

A．Some students are so careless that they spend lots of time on their homework.

B．All the students stay up late for their homework.

C．Children should be given less homework.

D．Schools and parents should take care of children

In China , more and more middle school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night, because they have much homework to do. Some homework is given by their teachers, and some by their parents. Also, some students don't know how to save(节省) time. They are not careful enough while they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing computer games. They stay up (熬夜) very late. Some students have to get up early every morning on weekdays to get to school on time by bus or by bike. It can be a long way from home to school.

　　Schools and parents should cut down some of the homework so that our children can enjoy more than nine hours of sleep every night for their health. For children, we should make best use of（很好地利用） our time. When we have enough time for sleeping, we will find it much better for both our study and health.

1.What makes most students sleep less than nine hours every night?

A．Watching TV.　　　　                   B．Playing computer games.

C．Doing their homework.                   D．Doing housework.

2.Who else gives children some homework to do except their teachers?

A．Their parents.                          B．Other students.

C．The children themselves.                 D．Nobody else.

3.How many hours of sleep is good for students' health?

A．Less than 9 hours.                       B．Over 9 hours.

C．Only 9 hours.　                         D．8 hours.

4.What would happen to a student who often goes to bed late and gets up early?

A．He would fall asleep in class.

B．He would do well in study.

C．He would finish his homework fast.

D．He would have good health.

5.Which of the following is NOT true?

A．Some students are so careless that they spend lots of time on their homework.

B．All the students stay up late for their homework.

C．Children should be given less homework.

D．Schools and parents should take care of children

 

In China , more and more middle school students are getting shorter sleeping time than before. Most students sleep less than nine hours every night, because they have much homework to do. Some homework is given by their teachers, and some by their parents. Also, some students don't know how to save time. They are not careful enough while they do their homework, so it takes them a lot of time. Some students spend too much time watching TV or playing computer games. They stay up (熬夜) very late. Some students have to get up early every morning on weekdays to get to school n time by bus or by bike. It can be a long way from home to school.

　　Schools and parents should cut down some of the homework so that our children can enjoy more than nine hours of sleep every night for their health. For children, we should make best use of our time. When we have enough time for sleeping, we will find it much better for both our study and health.

1.What makes most students sleep less than nine hours every night?

A．Watching TV.	B．Playing computer games.
C．Doing their homework.	D．Doing housework.

2.Who else gives children some homework to do except their teachers?

A．Their parents.	B．Other students.
C．The children themselves.	D．Nobody else.

3.How many hours of sleep is good for students' health?

A．Less than 9 hours.	B．Over 9 hours.
C．Only 9 hours.	D．8 hours.

4.What would happen to a student who often goes to bed late and gets up early?

A．He would fall asleep in class.	B．He would do well in study.
C．He would finish his homework fast.	D．He would have good health.

5.Which of the following is NOT true?

A．Some students are so careless that they spend lots of time on their homework.

B．All the students stay up late for their homework.

C．Children should be given less homework.

D．Schools and parents should take care of children.