高一數(shù)理化課外輔導(dǎo)

　　If you have a signal you can see it on the phone’s screen. Sometimes, if the signal is weak, i___8___ can be difficult to make a phone call. When the phone is finding a signal, it also sends a m___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 telecommunication offices where you are. The office will find out who you’re calling then put you t___10___ to your friend!

　　grow up成長;長大 every day每天 be sure about對……有把握 make sure確信;務(wù)必 want to do sth.想要做某事

　　send…to…把……送到…… be able to能 the meaning of……的意思

　　different kinds of不同種類的 agree to do sth.同意做某事