新编英语教程1-Unit4课件.ppt

Unit 4 of Book 1 2005-10 Unit 4 of Book 1 A New English Course Unit Four A New English Course Book One Language Structures 1. Modal auxiliaries “can/could” and “be able to” used to express ability Was she able to / Could she sing so well a year ago? But pay attention to the difference: She could/was able to swim when she was five years old. She was able to swim the English Channel in spite of the wind. Language Structures 2. Modal auxiliaries “have to” expressing obligation Do you have to live on the campus? Yes, I do = Yes. I have to. 3. Modal auxiliaries “can/may”used to express permission or request for permission Can/May I be excused from the lecture this week? 4. Modal auxiliaries “had better” expressing advice or suggestion You had better consult an encyclopaedia. Language Structures New words : hesitantly ad. fluently ad. unsatisfactorily ad. extensively ad. rehearsal n. promote v. encyclopaedia n. atomic a. librarian n. to excuse sb. from … Language Points to excuse sb. from: to set (sb) free from a duty, requirement, punishment, etc. The dean excused me from attendance at the meeting. They may be excused from complying with this regulation. Can I be excused from football practice today? Language Points A few terms in Cue IV: Xerox machine: a kind of photocopier (‘Xerox’ is a trade mark) magic eye: name used for various electronic devices which control or indicate sth.(电眼) fax (facsimile): a method of sending copies of printed or written matter by a telephone line Kublai Khan (忽必烈1215-1294): the first emperor of the Yuan Dynasty in China King Bruce (Robert Bruce) (1274-1329): King of Scotland the Cape of Good Hope (好望角): a cape in South Africa Bermuda (百慕大群岛):A group of islands in the Atlantic the Industrial Revolution began in England in the late 18th century the atomic age began in 1945 Practice Complete the dialogues in your textbooks I. Asking for and giving information about somebody’s ability to do something at pre