我国原始农业可追溯到
A．神农氏传说时期
B．春秋时期
C．战国时期
D．秦朝
答案：A
题目分析：中国古史中“神农氏”，正是原始种植业发生时的人物。中国农业从其产生之始，就是以种植业为中心的。在长期的采集生活中，对各种野生植物的利用价值和栽培方法进行了广泛的试验，逐渐选育出适合人类需要的栽培植物来。从“尝百草”到“播五谷”和“种粟”，就是这一过程的生动反映；而所谓“神农尝百草，一日遇七十毒”，则反映了这个过程的艰难和充满风险。神农氏“因天之时，分地之利，制耒耜，教民农作”，成为农业的始祖。为了使农业经济得以确立，要有相应的工具的创造，反映在传说中就是神农氏创制斤斧耒耜，“以垦草莽”。所谓“神农氏”的传说，正是这一时代中国农业的反映。原始农业最先是简单模仿自然界植物生长过程，进行播种和收获。因此选A。
点评：中国是世界农业起源地之一，农业起源最早可追溯到距今一万年左右。中国是世界上最早培植水稻和粟的国家。距今七八千年时，中国原始农业已相当发达。
James sat outside the office waiting for the interview. He felt so ___36___ that he didn’t know what to do with ___37___.The person who had gone in ___38___ him had been there for nearly an hour. And she looked so confident when she went in. ___39__ James. He felt __40___ that she had already got the ___41___. The problem was that he wanted this job ___42__. It meant ___43___ to him. He had ___44___ it such a lot before the day of the interview. He had imagined himself ___45___ brilliantly at the interview and __46___ the job immediately. But now here he was feeling ___47___ .He couldn’t ___48___ all those things he had ___49___ to say. At that moment, he almost decided to get up and ___50___.But no — he had to do this. He had spent so much time considering it that he couldn’t ___51__ like that. His hands were hot and sticky and his mouth felt dry. At last the door of the office opened. The woman who had gone in an hour earlier came out looking very ___52___ with herself. She smiled sympathetically at James. At that moment James ___53___ her . The managing director then appeared at the office door. “Would you like to come in now, Mr. Davis? I’m sorry to have kept you waiting.” James suddenly ___54___ that he had gone home after all. He got up, legs ___55____ and forehead sweating and wondered whether he looked as terrified as he felt.
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