1、2014-2015 学年高中英语同步作业题（1）及答案：Unit4（人教新课标必修 3）.完成句子1If you give up this chance, youll regret it in time (迟早 )2Laying eggs (下蛋) is the ant queens fulltime job.3Their son was prevented from going to college (被阻止上大学) because of their low income.4In business, success not only depends on (依靠) what you say
2、but also how you say it.5Then, in their turn (轮到他们), they raised a question which caused a heated discussion.单项填空1We usually take turns _ cleaning, and today it is my turn _ it.Ato do; doing Bdo; doCdone; doing Dto do; to do解析：选 D。take turns to do sth.“轮流干某事” ；It is ones turn to do sth.“轮到某人干某事” 。2P
3、eople try to avoid public transport delays by using their own cars, and this _ creates further problems.Ain case Bin returnCin turn Dby turns解析：选 C。句意：人们企图通过用私家车避免公共交通方式造成的延误，但是这反过来制造了更多麻烦。in turn “轮流；反过来” ，符合题意。 in case “以防万一” ；in return “作为回报” ；by turns “轮流；依次” 。3All these gifts must be mailed imm
4、ediately so as to be received _ Christmas.Aon time Bin timeCin time for Din no time解析：选 C。in time for sth.“赶上(做) 某事” 。句意：为了能在圣诞节及时收到，所有礼物必须马上寄出去。on time “准时” ；in no time “马上；立刻” ；in time “及时” ，都不接宾语。4We suggest that they provide an effective warning system to _ many of the disasters _.Akeep; happeningBprevent; from happeningCstop; from being happenedDprevent; from being happened解析：选 B。句意：我们建议他们提供有效的预警系统来阻止很多灾难的发生。prevent .from doing .“阻止做” ；keep .doing .“使 一直做” ；happen “发生” ，无被动语态。故 B 项正确。
