Cost as a Factor in Supply
In a purely competitive market, the supplier of goods and services has no control over the market price, because he produces too little to influence market conditions. With no difference between his products and the products________ his competitors, he will sell nothing if he charges above the market price and he will sell all if he charges at or __________ the market price. However, in considering the price, he must take the ____________of production into consideration. There are times when he may be willing to sell below his cost. This might happen when prices tumble for__________ he believes will be a short time. However, no business person can __________to lose money for a prolonged period. He must be constantly __________of his costs in relation to the market price if he is to competes successfully and earn a profit.
Many people have the impression that as production increases, costs per unit decrease._________mass production has made this true in certain industries and at certain levels of production,________ logic and practical experiences have shown that costs per unit begin to rise beyond a certain level of production. Some economists_________to this principle as the law of increasing costs.
The reason costs rise as production goes up is __________. However, it is easy to recognize that as production goes up, the need for additional factors of production will also grow,__________competitive bidding in the marketplace for the factors of production. If a producer needs___________ skilled labor to produce more, and none of this labor is unemployed, the producer will have to get __________from other sources. This can be done by ___________higher wages. Higher bidding would also apply to the other factors of production. We must also recognize that not all labor is equally productive, ___________not all land is equally fertile and not all oreis equally rich in the mineral wanted.
51 A to B at C of D on
52 A below B beneath C over D above
53 A price B cost C worth D profit
54 A that B why C what D if
55 A afford B pretend C offer D try
56 A sure B afraid C aware D suspicious
57 A Because B Since C When D While
58 A both B neither C none D any
59 A resort B refer C turn D attend
60 A clear B simple C difficult D complex
61 A bringing B resulting in C including D carrying out
62 A less B numerous C more D many
63 A them B these C it D those
64 A offering B cutting C reducing D having
65 A as if B just as C because D while
答案：
51C 52A 53B 54C 55A 56C 57D 58A 59B 60D 61B
62C 63C 64A 65B