When the musical sound rings out，you immediately reach for your pocket ready to have a chat．But although you probably use it all the time，have you ever stopped to think about the manners related to talking on the phone?If you haven't，here are some tips to guide you．
●Always give the person you are calling plenty of time to get to the phone before you hang up．If the person who answers is not the one you want，give your name and ask if you may speak to the person you want．
●Think about the time you call people．Try not to call too early in the morning(before about 9：00)or too late at night(after about 9：30)．Also try not to call at mealtimes．
●If you go by plane to visit your relatives at Christmas，remember to follow airline instructions．Cell phones must be turned off as soon as the plane doors are closed and remain so until the doors open again on arrival．
●When face to face with someone，do not talk on the phone．It is rude to be on the phone when a waiter is trying to take your order in a restaurant，or when you are returning the shoes you have just been trying on in a shop．Finish any face-to-face business before taking a call．Continuing to use the phone while nodding to the person in front of you is quite impolite．
●When in a restaurant with your friends，keep phone conversations short．Make a call only if it is important，Practise speaking in a low voice．If no one looks your way，you’ve got it．
●If you go to a theatre，a concert or a cinema，consider the other people around you．Check that your phone is“off”before you enter．If you are expecting a very important call，put your phone on“vibrate”(振动)and run for the exit as soon as you feel it．If you forget both“off”and“vibrate”and your phone rings，don’t answer it，turn it off straight away．
(1)
Which is true according to the passage above?
[ ]
A．
You may call people anytime as you like．
B．
You may talk loudly on the phone at dinner in the restaurant．
C．
You may keep on talking on the phone while greeting somebody．
D．
You may call people as soon as you get on the plane，but not after the doors are closed．
(2)
We may infer from these tips that________．
[ ]
A．
some people don’t pay much attention to manners while making cell phone calls
B．
you may ask to leave a message unless the person you are calling is in
C．
calling people too early or too late in the morning is not polite
D．
almost everyone has got a cell phone
(3)
What does the underlined sentence“…you've got it”mean in the passage?
[ ]
A．
You have succeeded in making a call without disturbing others．
B．
You have made the phone call brief and interesting．
C．
You’ve got the message you are waiting for．
D．
You have made a phone call secretly．
(4)
From the tips given above，we can decide the writer is sure to share the opinion that ________．
[ ]
A．
like the saying“clothes make a man”，nowadays cell phones make a man
B．
as the old saying goes，money talks；nowadays cell phones talk
C．
the way we use the cell phones tells what we are like
She took up skating at age 85, made her first movie appearance at age 114, and held a concert in the neighborhood on her 121st birthday．
Whe n it comes to long life, Jeanne Calment is the world’s recordholder．She lived to the ripe old age of 122．So is 122 the upper limit to the human life span(寿命)?If scientists come up with some sort of pill or diet that would slow aging, could we possibly make it to 150－or beyond?
Researchers don’t entirely agree on the answers．“Calment lived to 122, so it wouldn’t surprise me if someone alive today reaches 130 or 135,”says Jerry Shay at the University of Texas．
Steve Austad at the University of Texas agrees．“People can live much longer than we think,”he says．“Experts used to say that humans couldn’t live past 110．When Calment blew past that age, they raised the number to 120．So why can’t we go higher?”
The trouble with guessing how old people can live to be is that it’s all just guessing．“Anyone can make up a number,”says Rich Miller at the University of Michigan．“Usually the scientist who picks the highest number gets his name in Time magazine．”
Won’t new anti-aging techniques keep us alive for centuries?Any cure, says Miller, for aging would probably keep most of us kicking until about 120．Researchers are working on treatments that lengthen the life span of mice by 50 percent at most．So, if the average human life span is about 80 years, says Miller,“adding another 50 percent would get you to 120．”
So what can we conclude from this little disagreement among the researchers?That life span is flexible(有弹性的)，but there is a limit, says George Martin of the University of Washington．“We can get flies to live 50 percent longer,”he says．“But a fly’s never going to live 150 years．”
“Of course, if you became a new species(物种)，one that ages at a slower speed, that would be a different story,”he adds．
Does Martin really believe that humans could evolve(进化)their way to longer life?“It’s pretty cool to think about it,”he says with a smile．
(1)
What does the story of Jeanne Calment prove to us?
[ ]
A．
People can live to 122．
B．
Old people are creative．
C．
Women are sporty at 85．
D．
Women live longer than men．
(2)
According to Steve Austad at the University of Texas, ________．
[ ]
A．
the average human life span could be 110
B．
scientists cannot find ways to slow aging
C．
few people can expect to live to over 150
D．
researchers are not sure how long people can live
(3)
Who would agree that a scientist will become famous if he makes the wildest guess at longevity?
[ ]
A．
Jerry Shay．
B．
Steve Austad
C．
Rich Miller
D．
George Martin
(4)
What can we infer from the last three paragraphs?
[ ]
A．
Most of us could be good at sports even at 120．
B．
The average human life span cannot be doubled．
C．
Scientists believe mice are aging at a slower speed than before．
D．
New techniques could be used to change flies into a new species．
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