新目标九年级英语Unit9_Section_A(3a-4)课件.ppt

3a. Pairwork Helpful inventions: vacuum cleaner, soundproof door and window, car, computer, fax machine Annoying inventions: air-conditioner, truck, telephone, junk food, ice cream Sentence pattern: What is this in the picture? What is it used for? Do you think it is helpful / annoying? 3b.Pairwork Dialogue 1: A: What do you think is the most helpful invention? B: I think the most helpful invention is the light bulb. A: Why is that? B: Well, it gives people more time to work and play every day. A: What is this? 4. Groupwork Imagine that you are alone on a tiny island. Choose five inventions you would like to have on the island with you. A: I’d like to have some matches because I could light a fire to keep warm. B: Yes, but that’s not going to help you leave the island. I think it would be better to have a cell phone. A: I’d like to have a telescope because I could look far. B: Yes, but that’s not going to help you leave the island. I think it would be better to have a signal lamp. 1. annoying adj. 讨厌的, 恼人的 (往往指事物) e.g. How annoying it is! 真讨厌。 annoyed adj. 生气的, 恼怒的 (往往指人) e.g. My father is annoyed with me. 爸爸在生我气。 3.Imagine that you are alone on tiny island. alone adj. 意为“单独的”, 不带感情色彩。 e.g. When his wife died, he lived alone. lonely adj. 意为“孤独的, 寂寞的” e.g. He feels lonely when he is alone. lonely 指地方时表示“荒凉的, 偏僻的” e.g. The old man lives in a lonely small village. 变被动语态时需要注意的事项 一变 二套 三注意 各种时态的被动语态的构成： 1.一般现在时态 am, is, are +过去分词 2.一般过去时态 was, were +过去分词 3.一般将来时态 will/am.is.are going to + be +过去分词 4.过去将来时态 would/was.were going to + be + 过去分词 5.现在完成时态 have, has + been +过去分词 6.过去完成时态 had + been +过去分词 7.现在进行时态 am, is, are + being +过去分词 8.过去进行时态 was, were + being +过去分词 9.含情态动词的 情态动词 + be +过去分词 所有时态的被动语态否定就是在 最前面的助动词后加 not 疑问就是把最前面的助动词提前。 变被动语态的特殊情况 一、双宾语 二、无to不定式 一感