新概念第二册lesson19教学文案.pptVIP

2.can 的用法 过去式 could (2)表示-请求,询问 ※ Can I help you? ※ Can I come in?(英) (3)表示-推测,可能性 多用于否定句和疑问句 ※The news can’t be true. 3.may 的用法 过去式 might (1)表示-请求,询问,说明一件事 ※ May I come in? (比can更委婉) (2)表示-祝福,祝愿. ※May you success. ※May that day come soon. (3)表示-推测,可能性 （也许） Tom may come to see us tonight, but he isn’t very sure yet. 情态动词can,may,must,might,can’t 表示推测的可能性大小的排序: must can may might can’t 注意:一般情况下could 是can 的过去式, 但是 1.could 也可以代替can表示更加委婉客气的提出问题或提出要求,不是can 的过去式. ※Could I see your photo? ※Could you lend me your pen? 2.might 也可以代替may表示更加委婉客气的提出问题或提出要求,不是may 的过去式. ※You might as well speak your mind. 推测 对过去的猜测 肯定 must must have done 可能 can could have done 可能 could could have done 也许 may may have done 也许 might might have done 1. How do you feel? 2. What will you do if someone return a ticket then? Lesson 19 Sold out 票已售完 Listen and answer How many tickets did the writer ask for? What happened then? Did the writer get the tickets? 【New words and expressions】 hurry v. 匆忙 ticket office 售票处 pity n. 遗憾 exclaim v. 大声说 return v. 退回 sadly adv. 悲哀地， 丧气地， ★hurry v. 匆忙 ① vi. 赶紧，赶快，匆忙 hurry up v. 快点 hurry to +地点 匆匆忙忙地去某地 He hurries to school.= He goes to school quickly. ② n. 急忙，匆忙，仓促 in a hurry n.匆忙 in no hurry n. 不着急 I am in no hurry. 我不急 ★pity n. 遗憾，令人遗憾的事 What a pity! n. 真遗憾! It is a pity to hear the bad news (it做形式主语) To hear the bad news is a pity . ★exclaim v. 大声说 v（由于痛苦、愤怒、惊异、欣喜等）大声叫喊 When she saw the gift, she exclaimed in delight. ★ exclaim =shout out=cry =call out 大声喊 ★return v. 退回 ① vi. 返回=come back return to + sp 返回某地 return to China/Beijing 回到中国/北京 ② vt. 把…送回,归还,退回=give back He returned the books to the library. return money ＝pay back 还钱 1、The play may begin at any moment, I said. at any moment 在任何时候, 随时 Policeman may arrive at any moment. 天随时可能下雨. It may/might rain at any mom