【金版新学案】2015届高考英语（新课标，安徽专供）大一轮复习讲义课时作业：必修5　Unit 1　Great scientists（含答案解析）

课时作业(二十一)　必修5　Unit 1　Great scientists Ⅰ.单项填空 1．(2014·龙岩四校联考)—Would you like to join us in the game? —________，for I have something important to attend to.[来源:学|科|网Z|X|X|K] A．I will　　　　　　　　 B．I’d love to C．I won’t　 D．I’m afraid not 2．(2014·沈阳六校联合诊断)As far as I know，Mark is a(n)________shopper who always does some careful research on the market before he buys something valuable. A．fortunate　 B．generous C．enthusiastic　 D．cautious 3．(2014·武汉名校调研)Finding information in today’s world is easy.The ________is how you can tell if the information you get is useful or not. A．knowledge 　 B．ability C．competition　 D．challenge 4．(2014·云南毕业班质检)After further studying those fossils，Dubois，a Swiss scientist，announced with________that the so­called “Java Man” was merely an extinct monkey. A．courage　 B．certainty C．anxiety　 D．relief 5．(2014·厦门毕业班适应性考试)Graduation，in________opinion of many students，is________time to thank those who helped them through. A．the；a　 B．the；/ C．a；a　 D．/；the 6．(2014·福建省普通高中质量检查)It