2020-2021学年高中英语(北师大版)必修5随堂演练：15-1-Grammar.docx

随堂演练即时体验巩固提升单项填空1Maybe if I _ science, and not literature then, I would be able to give you more help.A. studied B. would studyC. had studied D. was studying答案与解析C考查虚拟语气的用法。句意：或许当时我要是学了理科而不是文科，现在就能给你更多的挂念。then表示过去的时间， if引导的从句是对过去的虚拟，因此使用过去完成时。选C项。2If it _ for the snow, we _ the mountain yesterday.A. were not; could have climbedB. were not; could climbC. had not been; could have climbedD. had not been; could climb答案与解析C依据yesterday这一信息词，可推断是与过去事实相反的虚拟语气。3 He was receiving more and more attention in the company. So he was. But for his good education, he _ the job.A. will never get B. shouldnt have gotC. would not have got D. mustnt have got答案与解析C考查虚拟语气。答语句意：他的确在公司里受到越来越多的关注。要不是他受过良好的训练，他就不会得到这份工作。“受训练”和“得到工作”都是过去的事实，说明此处表示与过去事实相反， but for his good education是介词短语表示虚拟条件，因此主句的谓语动词用would not have got，表示对过去事实的虚拟。4I wouldnt have succeeded _ for his help then.A. hadnt it been B. were it notC. had it been not D. had it not been答案与解析D此题考查对虚拟语气倒装的把握。if it werent for .和if it hadnt been for .表示“多亏，要不是的状况下”，也可用but for短语来表示。这两个句型倒装时仅需记住一句话： not总在主语“之后”。如： We wouldnt have finished the work had it not been for his help.要不是他的挂念，我们就不能完成这项工作。5 We could have gone there by bus. Yes, otherwise we _ late.A. werent B. hadnt beenC. couldnt be D. couldnt have been答案与解析DWe could have gone there by bus.意为“我们原来是能够坐汽车去那里”，但实际上并没有坐汽车去那里，相当于We didnt go there by bus.若将这一真实状况变成一个与事实相反的假设，则为If we had gone there by bus, we couldnt have been late.