9.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 tosomeone who is 20or older.
But sometimes,people over 20can hear the ringtone.One British student's phone uses mosquitotone.In class,the student's phone rang.The 32-year-old 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.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."
66.Mosquitotone works becauseD.
A.it is very loud
B.it has no sound
C.it has a beautiful sound
D.it uses high frequencies
67.The underlined part"it's inaudible to"in Paragraph 3means"B".
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
68.The 32-year-old teacher felt unhappy because the studentD.
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
69.The underlined word"It"in Paragraph 5refers toA.
A.Using mosquitotone in class
B.Using mosquitotone for pleasure
C.Using mosquitotone in public places
D.Using mosquitotone too often
70.Connie Neeson thinks that mosquitontoneC.
A.has no bad influence
B.is unfair to the teacher
C.has its advantage and disadvantage
D.can't be used in any public place.
分析 本文屬于教育類的短文閱讀.主要描述的是在課堂上禁止學生使用手機.學生在課堂上使用手機是對老師的不尊重,同時又針對蚊子手機鈴聲進行了評價.
解答 66-70 DBDAC
66:D.細節(jié)理解題.本文第二段倒數(shù)第二句為As we get older,we are unable to hear some sounds with high frequencies (頻率).,所表示的含義為隨著歲數(shù)的變大,我們不能夠聽到高頻率的聲音,故本題選D.
67:B.詞意猜測題.本文第二段最后一句為As a result,a child or teenager can hear the mosquitotone ringtone,but it's_inaudible_to someone 20 or older.所表示的含義為兒童能聽到蚊子鈴聲,但是20歲以上就難以聽見,故本題選B.
68:D.細節(jié)理解題.本文第三段第二行有兩句為the student's phone rang.The 32yearold teacher looked at the student and became unhappy.所表示的含義為學生在課堂上使用手機,老師感到不開心,故本題選D.
69:A.代詞指代題.根據(jù)本段中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!"可知,it指的是Using mosquitotone too often,在課堂上使用手機頻繁這一問題;故選A.
70:C.推理判斷題.根據(jù)文中內(nèi)容的描述可知,本文最后一句話的含義為蚊子鈴聲有它的好處和不好處,故本題選C.
點評 做本題時,首先要快速瀏覽全文,把握文章的主旨大意,理清作者的寫作思路;然后結(jié)合上下文,逐句分析,并正確理解每一句話的意思;最后結(jié)合選項意思,找到符合文意的選項.