What do you usually use mobile phones for?Sending text messa

What do you usually use mobile phones for?Sending text messages for fun?Playing games?Well mobile phones can do (1) _______ more than that.(2) _______ this year’s Asian tsunami(海啸),mobile phones saved many (3) _______.More than 10,000 international phones were (4) _______ when the tsunami hit.Police sent text messages to them and found more than 2,000.But how?People (5) _______ the signal and found out (6) _______ the tourists were.So,how can (7) ______ so small be so smart?Well here’s how!When you turn the phone on,it tries to find a signal.This signal comes from the telephone network.If you have a signal you can see it on the phone’s screen.Sometimes,if the signal is weak,(8) _______ can be difficult to make a phone call.When the phone is finding a signal,it also sends a (9) _______ to the telephone network.This message tells the station where the phone is.When you start to make a phone call,the telephone network tells telecommunications offices where you are.The office will find out who you’re calling then put you (10) _______ to your friend!1.A.very B.so C.far D.little 2.A.While B.During C.At D.When 3.A.lives B.animals C.houses D.troubles 4.A.doing B.working C.mending D.using 5.A.heard B.listened C.followed D.examined 6.A.how B.where C.what D.why 7.A.something B.nothing C.everything D.nothing 8.A.he B.it C.they D.you 9.A.information B.word C.message D.note 10.A.off B.up C.on D.through (3)
完形填空.

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文章本身有些表达不地道,估计是中国人写的或者中国把外国文章改写的.
甚至有明显错误,比如when the phone is FINDING a signal...find显然是不能用于进行时的.
这种中式英语文章看多了有害语感.
第五题感觉没有好答案.最准的应该用Trace,是追踪手机信号的最准确表达.