1. The history of life on earth has been a history of ______ between man and his surroundings.
A. interaction
B. interference
C. interpretation
D. integrity
2. He wore shorts and a T-shirt that revealed well-muscled legs and arms and a strong neck that ______the grizzled hair.
A. belied
B. denied
C. relied
D. believed
【考博英语补全句子】
1. _________ _________ _________ _________(在……的帮助下)robots, it will be unnecessary for humans to do some dangerous work.
2. _________ _________ _________(在某种程度上), he made a great contribution to our country.
1.A
【句意】地球上生命的历史一直是人类与周围环境相互影响的历史。
【解析】名词词义辨析。interaction“相互影响;互动”;interference“干涉;(无线电信号的)干扰”;interpretation“理解;解释;演绎;”;integrity“正直;诚实;完整”。由句中关键词“The history of life on earth地球上生命的历史”与“man and his surroundings人类与周围环境”的对应知“相互影响”符合语境，故A项正确。
2.A
【句意】他穿着短裤和短袖汗衫，露出肌肉发达的腿、胳膊和强壮的脖子，而这些掩饰了他灰白的头发。
【解析】动词词义辨析。belie“掩饰;证明……是虚假的”;deny(其动词过去式为denied)“否认;拒绝给予”;rely(其动词过去式为relied)“依赖;信任”;believe“认为;相信”。由句中关键词“well-muscled legs and arms and a strong neck肌肉发达的腿、胳膊和强壮的脖子”与“grizzled hair灰白的头发”的对应知“掩饰”符合，故A项正确。
【补全句子参考答案】
1. 句意：在机器人的帮助下，人类将没有必要去做一些危险的工作。
答案：With the help of
2. 句意：在某种程度上，他为我们国家做出了巨大的贡献。
答案：In a way