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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 32173。year173。old teacher looked at the student and became unhappy. “I heard that. You know the rules: 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. You’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 soundC. it has a beautiful sound D. it use high frequencies( )2. The underlined part “ it’s inaudible to” means “ ________”.A. it can’t be seen by B. it can’t be heard byC. it isn’t popular with D. it isn’t healthy for( )3. The 32173。year173。old teacher felt unhappy because the student ________.A. was late for classB. didn’t do his homeworkC. couldn’t answer her questionD. was using a mobile phone in class( )4. Connie Neeson thinks that mosquitotone ________.A. has no bad influenceB. is unfair to the teachersC. has its advantage and disadvantageD. can’t be used in any public place語(yǔ)篇解讀:文章介紹了一種特殊的手機(jī)鈴聲“蚊子鈴聲”,對(duì)此老師、學(xué)生和家長(zhǎng)有不同的看法。1. D。 推理判斷題。由第二段“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).”“蚊子鈴音有特殊的聲音。只有兒童和青少年能聽到。由于年齡大了,我們不能聽到這么高頻率的聲音”可知。2. B。 推理判斷題。由第二段可知兒童和青少年能聽到蚊子鈴音,對(duì)于20歲以上的人群一般聽不到。3. D。 細(xì)節(jié)理解題。由第四段可知學(xué)生在課堂上,學(xué)生的手機(jī)響了。學(xué)校規(guī)定不允許用手機(jī),因此老師不高興了。4. C。 細(xì)節(jié)理解題。由文章最后一段可知Connie Neeson認(rèn)為在公共場(chǎng)合使用蚊子鈴音有好處,別人不被打擾;然而在課堂上學(xué)生用它則對(duì)學(xué)習(xí)有不好的影響。