4．
One day after school Mr．Tillman found Philo Farnsworth making drawings on the blackboard in the school-room．
"What are you doing？"Mr．Tillman asked with interest．"What are these drawings？"
"I want to invent things，"Philo answered，"and these are drawings of my first inventions．"
Mr．Tillman smiled to himself，"What is your invention？"
"I have an idea for a way of sending pictures through the air，"The boy answered．"Please just let me tell you about it．You are the only person who can understand what I have done．"
In 1922，even radio was new．The United States had fewer than 30radio stations．But in 1922，a boy of 16showed his teacher drawings for television!
In 1926，Philo worked as an office boy in Salt Lake City．Many important businessmen came into the office where he worked．One of these，George Everson，was from San Francisco．Like Mr．Tillman，Everson soon became interested in Philo．The shy，hard-working boy was like other office boys who Everson had known．
One evening Everson asked Philo to have dinner with him．After the meal，Philo began talking about his idea for Television．At first，Everson was not much interested in the invention．He listened only to be polite．
Many years later，Everson wrote a book telling about that evening with Philo．"As Farnsworth talked，he seemed to change，"Everson wrote，"His eyes lighted up，and he was no longer shy．"Talking freely about his invention，Philo Farnsworth was no longer an office boy--he was a scientist．
At the end of the evening，Everson was more interested than ever in Philo．And he was also interested in Philo's idea for television．
After talking with Philo，Everson returned to San Francisco．There he brought together a number of important businessmen．Philo told them about his invention．The men became so interested in the young inventor that they gave $25，000to help him work on his idea．Philo was only 20years old，but here was his chance．
81．What kind of drawings was Philo making on the blackboard one day？B
A．Drawings of his school-room．
B．Drawings of his invention．
C．Drawings of his interest．
D．Drawings for Mr．Tillman．
82．Philo's new idea was toC．
A．tell his teacher all about his invention
B．show Mr．Tillman about his idea by drawings
C．send pictures through air
D．make other people see things by pictures
83．George Everson first became interested in Philo because heA．
A．did his work well as an office boy
B．was quite different from other office boys
C．was shy and did not work hard
D．was also interested in Philo's drawings
84．When talking about his invention，PhiloD．
A．listened to Mr．Everson politely
B．became more interested in the businessman
C．seemed to change his idea
D．looked like a scientist
85．Which of the following is true？C
A．Philo made his television only four years later．
B．Mr．Everson helped Philo to invent the television with his own money．
C．Mr．Everson himself was an important businessman．
D．The businessmen in Salt Lake City gave Philo the money for his invention．
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