2021版高考英语大一轮复习第2部分第2板块专题3情态动词练习新人教版

专题三　情态动词————————————◄ 对 点 训 练 ►———————————Ⅰ.单句语法填空(高考真题改编)1. (2018年天津卷)I can't find my purse. I ________ have left it in the supermarket yesterday, but I'm not sure.解析：句意：我找不到我的钱包了我可能昨天把它落在超市了，但我不确定空处表示对过去事情的推测，且根据题干中的I'm not sure可推知，此处表示不确定的推测，故用could/might/may，意为“可能”答案：could/might/may2. (2018年北京卷)In today's information age, the loss of data ________ cause serious problems for a company.解析：句意：在当今这个信息时代，对于一个公司来说，数据的丢失可能会造成严重的后果根据句意可知，语境要体现的是一种客观的可能性，且cause为动词原形，因此can符合语境答案：can3. (2017年天津卷)Sure, I ________ (ask) her, but something prevented me from doing so.解析：could have done意为“过去本来能够做某事但事实上并没有做”。

答案：could have asked4. (2017年北京卷)Samuel, the tallest boy in our class, ________ easily reach the books on the top shelf.解析：句意：Samuel，我们班最高的男生，能很轻松地够到书架顶上的书表示能力，用can答案：can5. (2017年天津卷)My room is a mess, but I ________ clean it before I go out tonight. I can do it in the morning.解析：句意：我的房间很乱，但是在今晚我出去之前不需要打扫，我可以明天早晨再打扫needn't意为“不需要，不必”答案：needn't6. (2016年浙江卷)George ________ (go) too far. His coffee is still warm.解析：句意：乔治不可能走太远，他的咖啡仍是温的can't have gone意为“不可能走(远)”，是对过去情况的否定推测，符合语境答案：can't have gone7. (2016年北京卷)I love the weekend, because I ________ get up early on Saturdays and Sundays.解析：句意：我喜欢周末，因为周六周日我不用早起。

根据句意可知，应填needn't答案：needn't8. (2016年天津卷)It was really annoying; I ________ get access to the data bank you had recommended.解析：句意：真烦人，我无权使用你推荐的资料库couldn't意为“不能”，符合语境答案：couldn't9. (2015年天津卷)I needn't________ (worry) before I came to the new school, for my classmates here are very friendly to me. 解析：句意：我来新学校之前本没有必要担心的，因为在这里我的同学对我非常友好needn't have done意为“本没有必要做某事而实际上已经做了” 答案：have worried10. (2015年重庆卷)You________ be Carol. You haven't changed a bit after all these years.解析：句意：你肯定是卡罗尔你这么多年一点儿都没变 must表示对现在的肯定推测。

答案：mustⅡ.单句改错1. (2018年全国卷Ⅱ)...but no matter how many times I asked to watch them, my parents would not to let me._________________________________________________________________解析：would是情态动词，后跟动词原形，故去掉let前的to答案：去掉let前的to2. (2016年浙江卷)Then he and my mother would have had a drink while she prepared dinner and they would talk about his day and hers._________________________________________________________________解析：would表示过去常常，后跟动词原形，故去掉had答案：去掉had3. (2015年全国卷Ⅰ)We must found ways to protect our environment._________________________________________________________________解析：must为情态动词，后跟动词原形，故把found改为find。

答案：found→find4．You had better not to smoke here. Smoking is forbidden in this room._________________________________________________________________解析：had better意为“最好”，后跟动词原形，故去掉to答案：去掉to5．Judging from what you said, he ought succeed._________________________________________________________________解析：ought to 意为“应该，应当”，故在ought后加to答案：ought后加to。