Lesson 130（课件）新概念英语第一册

Lesson130 He can't have been... He must have been... Grammar He must be a boss. He can’t be a doctor. 一般现在时表推测 Grammar must be can’t be may be 一般现在时表推测 必须是 不可能是 也许是 Grammar 情态动词表推测 +现在进行时 must be doing 此刻肯定正在 can’t be doing 此刻不可能正在 may be doing 此刻可能正在 She must be running. She can’t be running. She may be running. 现在进行时表推测 Grammar 一般过去时表推测 主语+was/were+非动词 must was can’t was may was 那时肯定是 那时不可能是 那时可能是 must have been can’t have been may have been Grammar He must have been tall，when he was young. 他以前肯定很富有。 He must have been rich before. 一般过去时表推测 Grammar 主语+动词过去式 must have been can’t have been may have been must have done can’t have done may have done done 实义动词 Grammar 他小时候篮球一定打得挺好 He must have played basketball when he was young. He can’t have played basketball when he was young. He may have played basketball when he was young. 过去进行时表推测 主语+was/were+动词ing must have been doing 那时肯定正在 can’t have been doing 那时不可能正在 may have been doing 那时可能正在 Practice He can’t have been ill. He must have been tired. It can’t have been my new hat. It must have been my old one. Practice She can’t have been Danish. She must have been Swedish. He can’t have been a dentist. He must have been a doctor. Practice He can’t have been reading. He must have been sleeping. Practice He can’t have been working. He must have been playing games. Practice must have been must have played must have been had to had to must have been Practice Practice I.句型转换 1He can’t have been a teacher.(对现在的推测) He a teacher. 2.Tom must have been fifty. (对现在的推测) Tom fifty. 3.He can’t have been a teacher.(变为肯定句) He a teacher. 4.Tom must have been fifty. (变为否定句) Tom fifty. 5.I must sweep the floor.(同义句) I sweep the floor. Practice I think she was Japanese. (Chinese) eg. I don’t think she was. She can’t have been Japanese. She must have been Chinese. $