【填空题】

One of the teacher s rewards is that he is using his mind on valuable subjects . all over the world people are spending their lives either on doing jobs where the mind must be inactive all day , or else on highly rewarded activities which are boring . one can get accustomed to operating an adding machine for five and a half days a week , or to writing advertisements to persuade the public that one brand of cigarettes is better than another . yet no one would do either of these things for its own sake . only the money makes them tolerable but if you really understand an important and interesting subject , like the structure of the human body or the history of the two world wars , it is a real happiness to explain them to others , to welcome every new book on them , and to leam as you teach.

with this another reward of teaching is very closely linked . that is the happiness of making something . when the pupils come to you , their minds are only half formed , full of black spaces and vague notions and oversimplification .
You do not merely insert a lot of facts , if you teach them properly . it is not like injecting 500cc. of serum(血浆) or giving a year' s dose剂量) of vitamins. You take the living mind , and mould it . itresists sometimes it may lie passive and apparently refuse to accept anything you print on it . sometimes it takes the mould too easily , and then seems to melt again and become featureless . but often it comes into firmer shape as you work and gives you the incomparable happiness ofhelping to create a human being to teach a boy the difference between truth and lie in print , to start him thinking about the meaning of poetry or patriotism(爱国主义) to hear him hammering back at you with the facts nd arguments you have helped him to find , gives the sort of satisfaction that an artist has when he makes a picture out of blank canvas ( t ) and chemical colorings , or a doctor has when he hears a sick pulse pick up and carry the energies of new life under his hands
 what makes people tolerant of tedious jobs si_
a . the job it self
b the money
c the significance if the job
d the numb mind