阅读下面短文，根据所读内容在文章后图表中的空格里填入最恰当的单词，每空只填一个单词。

Third-generation mobile phones, known as 3G, are the next big step for the telecom industry. Data speed in 3G networks is much quicker than that in present technology. This means users can have high-speed Internet access and enjoy video and CD-quality music on their phones.
　 “Mobile data is not a dream; it’s not an option but a requirement,” said Len Lauer, head of a US communications company, Sprint PCS, at a 3G conference in Bangkok earlier this month.
　 With 3G, you can forget about text messages telling you yesterday’s news; a 3G phone can receive video news programs, updated four times a day. Internet access will also be much quicker, making it easier to surf the Web on your phone than on your computer at home.
　 Face-to-face video calls
　 Don’t worry about getting lost. 3G phones offer map services so you can find a new restaurant just by pressing a few keys on your handset.
　 However, the most impressive part of 3G technology is video calling. With live two-way video communication, you can have face-to-face talks with friends and family on your mobile phone.
Many European countries have already launched the service. In May 2000 the US Government issued five license to run 3G wireless services, while the first 3G phones arrived in Italy in March this year.
International telecom companies can’t wait to sell 3G in China, the world’s largest mobile telecommunications market. But they will have to be patient. At the moment, China is busy testing its 3G-based technologies, networks and services. This will be followed by a trial period before the phones can finally hit the shops.
“We need to create a pool of 3G customers before the large-scale commercial launch of the service,” said Fan Yunjun, marketing manager for Beijing Mobile. “We expect that the 3G licenses will be issued late next year.”

To be a good teacher, you need some of the gifts of a good actor; you must be able to hold the attention and interest of your students, you must be ?　36　?—speaking, with a good, strong,?　37　? voice which is fully under your control; and you must be able to ?　38　? what you are teaching, in order to make its meaning clear.

?　39　? a good teacher, and you will see that he does not sit still before his class; he ?　40　? the whole time he is teaching; he walks about, using his ?　41　?,hands and fingers to help him in his explanations, and his face to express his ?　42　?.Listen to him, and you will ?　43　? the loudness, the quality and the musical note of his voice always ?　44　? according to what he is talking about. The fact that a good teacher has some of the gifts of a good actor doesn't ?　45　 that he will indeed be able to act well on the stage, for there are very important ?　46　? between the teacher's work and the actor's. The ?　47　? has to speak words which he has learnt by heart; he has to repeat exactly the ?　48　? words each time he plays a certain part, even his movements and the ways in which he uses his voice are usually ?　49　? beforehand. What he has to do is to make all these carefully learnt words and actions seem ?　50　? on the stage.?

A good teacher ?　51　? in quite a different way. His students take an active part in his ?　52　?:they ask and answer questions, they obey orders, and if they don't ?　53　? something, they will say no. The teacher therefore has to suit his act to the needs of his students, which is in his class. He cannot learn his part by heart, but must ?　54　? it as he goes along.

I have known many teachers who were fine ?　55　? in class but unable to take part in a stage play because their brains wouldn't keep discipline: they could not keep strictly to what another had written.

36. A. clear    B. slow C. small D. low ?

37. A. frightening B. fearing C. exciting D. pleasing ?

38. A. act out B. talk C. say D. repeat ?

39. A. Listen B. Look C. Watch D. Learn ?

40. A. stands B. sits C. lies D. talks ?

41  A. tongue B. words C. legs D. arms?

42. A. attention B. thanks C. feelings D. sentences ?

43. A. hear B. see C. think D. guess ?

44. A. making B. changing C. expressing D. giving ?

45. A. tell B. express C. show D. mean ?

46. A. things B. differences C. points D. jobs

47. A. actor B. teacher C. boy D. student ?

48. A. different B. same C. above D. following ?

49. A. read B. known C. fixed D. written ?

50. A. natural B. bad C. false D. clear ?

51. A. is B. works C. has D. teaches ?

52. A. group B. party C. class D. play ?

53. A. give B. place C. obey D. hear ?

54. A. invent B. discover C. teach D. continue ?

55. A. learners B. watchers C. actors D. listeners