（新课标人教版）高考英语一轮复习单元冲刺精编课件精品必修五　unit 3　life in the future.ppt

3.speed up　加速 (朗文P1976)Speed up—we’re going to be late. 赶快——我们要迟到了。 ①Plenty of fresh air and exercise will speed up his recovery. 充足的新鲜空气和体育锻炼将加速他的康复。 ②(朗文P1915)Once outside the station,the train began to pick up speed.一出车站,火车就开始加速。 ③Even in the wake of the global financial crisis,Ford is manufacturing at full speed. 即使是在全球金融危机爆发后,福特依然在全速生产。 [跟踪训练] Ⅰ.选词填空 be back on one’s foot；speed up；sweep up；take up；lose sight of 1．The old man volunteers to ____________ the fallen leaves in the street every autumn. 2．I felt very frightened,for I ____________ my mother in the crowd. 3．The operation was so successful that the injured boy ____________________ two weeks later. 4．We should ________ a bit or we’ll never finish the work. 5．Tom thought carefully for several days and decided to ________________ the job offer. sweep up lost sight of was back on his feet speed up take up Ⅱ.单项填空 1．(2011·高考山东卷)They are broadening the bridge to __________ the flow of traffic. A．put off B．speed up C．turn on D．work out 解析：选B。考查动词词组辨析。句意：他们在加宽桥面,用以加快车流速度。put off推迟,暂缓;speed up加快速度;turn on打开,呈现;work out解决,锻炼,设计出。 2．(2011·高考陕西卷)Some insects __________ the colour of their surroundings to protect themselves. A．take in B．take off C．take on D．take out 解析：选C。考查动词短语辨析。句意：有些昆虫可以变成它们周围环境的颜色以保护自己。take in吸收,收留(某人),欺骗,包括,理解;take off脱下(衣服等),(飞机等)起飞,(观念、产品等)突然大受欢迎;take on呈现;take out拿出。根据句意选择C项。 3．(2012·河北衡水第二次调研)He didn’t________what he read because his mind was on something else. A．take on B．take in C．take over D．take for 解析：选B。句意：他没明白他所读的东西,因为他的心思在别的事情上。take in吸收,理解;take on 雇用,呈现,承担;take over接管;take A for B 把A误认为B。 4．The couple watched the Kongming light go higher and higher until they lost________of it. A．view B．scene C．vision D．sight 解析：选D。句意：那对夫妇看着孔明灯越飞越高,直到看不见了。lose sight of意思是“看不见”。 5．At the railway station, the mother waved goodbye to her daughter until the train was ________. A．out of sight B．out of reach C．out of order D．out of place 解析：选A。句意：在火车站,这位母亲挥手向她的女儿告 别,直到火车看不见为止