1. The winners of the football championship ran off the field carrying the silver cup ______.
A. turbulently
B. tremendously
C. triumphantly
D. tentatively
2. ______for a long time, the fields are all dried up.
A. There has been no rain
B. Having no rain
C. There having been no rain
D. There being no rain
【考博英语补全句子】
1. No one has come up with a convincing explanation of why dinosaurs _________ _________(灭绝).
2. The astronauts ________ _________(成功)returning from the moon to the earth according to the plan.
1.C
【句意】足球锦标赛的获胜者洋洋得意地抱着银色奖杯跑出了足球场。
【解析】副词词义辨析。turbulently“汹涌澎湃地;动荡地，骚动地”;tremendously“非常地;极大地”;triumphantly“成功地;耀武扬威地;洋洋得意地”;tentatively“暂时地;试验性地”。由关键词“The winners of the football championship足球锦标赛的冠军”知“洋洋得意地”符合语境，由此知C项正确。
2.C
【句意】由于长时间不下雨，田野都干涸了。
【解析】语法结构——独立主格表原因。由句中关键词“for a long time长时间”的对应知空格处应该使用完成时态，故可以直接排除不是完成时态的B项“Having no rain”和D项“There being no rain”;再由这里两个句子之间存在因果关系知空格处只能使用独立主格来表示原因，由此知属于独立主格的C项“There having been no rain”正确。
【补全句子参考答案】
1. 句意：没有人能对恐龙灭绝的原因提出令人信服的解释。
答案：died out
2. 句意：宇航员们按计划成功地从月球返回到地球。
答案：succeeded in