Unit 3 The world of science Period 1 Starting out and understanding ideas 练习-2020-2021学年下学期高一英语同步精品课堂(外研版新教材必修第三册)

Unit 3 The world of science Period 1 Starting out and understanding ideas 练习-2020-2021学年下学期高一英语同步精品课堂(外研版新教材必修第三册) 解析版 一、单项选择题 As a famous public figure, you have a duty to ________ yourself responsibly, especially in public places. carry B. conduct C. guide D. operate 【答案】B 【解析】句意：作为一个著名的公众人物，你有责任对自己负责，尤其是在公共场所。carry携带；conduct管理，表现；guide指南，向导；operate手术。conduct oneself表现，为人处事，故选B项。 It is said that the temperature is unusual mainly _______ global warming caused by human activities. in spite of B. by means of C. in case of D. on account of 【答案】D 【解析】句意：据说温度升高主要是由于人类活动导致的全球变暖引起的。A. in spite of 不管；尽管；B.by means of 通过，借助于；C.in case of 以防；D.on account of 由于；故选D项。 The hurricane（台风）damaged many houses and business buildings; ______， it caused 20 deaths. or else B. therefore C. however D. in addition 【答案】D 【解析】考查衔接词。句意：飓风摧毁了许多房屋和商业建筑；此外，它造成20人死亡。A.or else否则，要不然；B.therefore因此，所以；C.however然而；D.in addition另外。结合句意，此处上下文之间是并列关系，故选D项。 Quite a few tall buildings ______ in the last two years. were put up B. have been put up C. had been put up D. put up 【答案】B 【解析】考查现在完成时的被动语态。句意：在过去的两年里建了不少高楼。主语a few tall buildings和谓语put up之间是被动关系，根据时间状语可知，本句应用现在完成时，主语是复数，谓语用复数，故选B项。 Up to now, a great number of high-rise buildings ______ in our town. were built B. was built C. has been built D. have been built 【答案】D 【解析】考查时态语态。句意：截至目前，许多高楼在我们镇上被修建起来。根据句意，此处应该使用被动语态，根据时间状语“up to now”可知应该使用现在完成时态，且主语为buildings复数，故选D项。 Good morning! I want to know whether my computer I left here three days ago ______ yet. repairs B. has been repaired C. was repaired D. repaired 【答案】B 【解析】考查现在完成时的被动语态。句意：早上好！我想知道我三天前留在这里的电脑是否修好了。句中whether意为“是否”，引导宾语从句，yet用于疑问句和否定句，用来询问说话人期望发生的事情是否已经发生，常与完成时连用，根据want的形式，可知主句是一般现在时，故从句用现在完成时，computer与repair之间的关系是被动，故B项正确，故选B项。 He couldn't ________ the fact that he told a lie to his boss last week. answer for B. leave for C. account for D. care for 【答案】C 【解析】句意：他不能对上周向老板撒谎这一事实做出解释。A.answer for对……负责；B.leave for动身去某地；C.account for对……做出解释；D.care for在意，关心。根据句意，故选C项。 Drug use is now though