【正文】
l context. (PPT7) Cars are the leading ( ) causes of air pollution in the world today. Realizing ( ) how serious the problem has bee, the government has been encouraging people to walk, cycle or make better use of the underground system. Answers:定語(yǔ) adj. 狀語(yǔ) adv. show the picture of Harry Porter and ask students to fill in the blanks with suitable words. Have you read the book _________ to him? (relate) It is a book ________ by . Rowling. It’ s an_________book most teenagers like. (write, interest) Will you feel ________ if Harry Porter is your teacher? (excite) Answers: related, written, interesting, excited Part two a ved or a ving like an adverb 1. Ask students to read the following sentences and to analyze when ved or ving can be as adverb. In this activity, students are supposed to discuss in pairs. (PPT811) Sentences Situations 1) Realizing he would have to take two different trains, he decided to take a taxi instead. 2) Encouraged by the success of the Metropolitan Railway Company, Metropolitan District Railway opened another line in 1868. 3) Traveling through the tunnel, the man felt unfortable because of the noise. 4) When asked how old the underground system was, she made no reply. 5) The train headed for London, puffing and rattling. 6) He walked down the hill, singing softly to himself. 7) Turning to the left at the crossroads, you will see the railway station on your right. 8) Given another