If a farmer wishes to succeed, he must try to keep a wide gap between his consumption and his production. He must store a large quantity of grain【B1】consuming all his grain immediately. He can continue to support himself and his family【B2】he produces a surplus. He must use this surplus in three ways: as seed for sowing, as an insurance【B3】the unpredictable effects of bad weather and as a commodity which he must sell in order to【B4】old agricultural implements and obtain chemical fertilizers to【B5】the soil. He may also need money to construct irrigation【B6】and improve his farm in other ways. If no surplus is available, a farmer cannot be【B7】. He must either sell some of his property or【B8】extra funds in the form of loans. Naturally he will try to borrow money at a low【B9】of interest, but loans of this kind are not【B10】obtainable.
单选题
【B1】
【正确答案】
C
【答案解析】解析：instead of是"代替，而不是"。
单选题
【B2】
【正确答案】
A
【答案解析】解析：only if是"只有"，引导条件状语从句。
单选题
【B3】
【正确答案】
B
【答案解析】解析：against与an insurance搭配，是"对…的保险"。
单选题
【B4】
【正确答案】
A
【答案解析】解析：replace是"代替；取代"。
单选题
【B5】
【正确答案】
C
【答案解析】解析：feed是"喂养：使变肥"，这儿指给土地增加肥力。
单选题
【B6】
【正确答案】
D
【答案解析】解析：channels是"水路；水道"。
单选题
【B7】
【正确答案】
B
【答案解析】解析：self-sufficient是"自给自足的"。
单选题
【B8】
【正确答案】
D
【答案解析】解析：seek是"寻找；寻求"。
单选题
【B9】
【正确答案】
C
【答案解析】解析：rate of interest是"利率"，interest不与其他三个词搭配。
单选题
【B10】
【正确答案】
D
【答案解析】解析：frequently是"经常地"。are not frequently obtainable是"不是经常可以得到的"。