2018版高考英语（人教通用）大一轮复习第二部分语法专题 词形变化类 第五课时　情态动词和虚拟语气 （共44张PPT）

第五课时　情态动词和虚拟语气 单句语法填空/单句改错 1.Why didn’t you tell me about your trouble last week? If you ________ (tell) me，I could have helped.(2016·北京，34) 2.I was wearing a seatbelt.If I hadn’t been wearing one，I ________ (injure).(2016·天津，15) 3.We can chose between staying at home and taking a trip. (2016·全国Ⅱ，短文改错) [感 悟 高 考] 4.Some classmates suggest we can go to places of interest nearby.(2016·全国Ⅱ，短文改错) 5.We must found ways to protect the environment.If we fail to do so，we’ll live to regret it. (2015·全国Ⅰ，短文改错) 答案　1.had told　2.would have been injured　3.chose→choose　 4.去掉can或can→should　5.found→find 情态动词 考点一　can，could与be able to的用法 规则❶ 表示能力，意为“能，会”。 The man can/could speak two foreign languages. 那个人能说两门外语。 Yesterday I was able to get home before the heavy rain. 昨天我在下大雨前赶到了家里。 [考 点 清 单] 规则❷ can/could表示惊讶，常用在否定句和疑问句中。 How can you be so careless while driving? 你开车时怎么这么粗心呢？ 规则❸ can/could表示礼貌地请求别人做某事，意为“能，可以”。 —Could I use your bike tomorrow morning? —Yes，of course you can. ——明天早晨我用一下你的自行车，行吗？ ——当