Unit 6 When was it invented？ Section A 课件-2023-2024学年人教版九年级英语全册

Unit 6　 When was it invented？ Section A(课前) ——自主预习，扫清障碍 Section A 重点短语及目标句型预习。 1.When was the telephone invented? 【释义】 电话是什么时候被发明的？ 【精讲】 invent v．发明 　 invention n．发明 　inventor n．发明家 【运用】 (1)爱迪生是最伟大的发明家之一，他发明了很多东西。 Edison is one of the greatest ___________ who ____________ many things. (2)手机是一个有用的发明。A smart phone is a useful _____________. inventors invented invention 第 ‹#› 页 【拓展】 辨析invent 与discover invent v．发明，指通过科学的方法创造新的事物。 discover v．发现，指发现本来存在但不为人知的事物。 【运用】 (1)他发明了电话。He ___________ the telephone. (2)他们在海里发现了一种特殊的鱼。They ________________ a special fish in the sea. invented discovered 第 ‹#› 页 ( )1)The telephone __________ by Alexander Graham Bell in 1876. A．was invented 　　 B．is invented 　　 C．invented　　 D．was inventing ( )2)Artemisinin (青蒿素) ________ by Tu Youyou, a great Chinese scientist. A．was invented B．invented C．has invented D．is invented A A 第 ‹#› 页 2.With pleasure! 【释义】 非常乐意！ 【精讲】 pleasure 表示“高兴，快乐，娱乐”时，为不可数名词；表示“乐趣，高兴的事”时，为可数名词。 【运用】 “你愿意帮我学英语吗？” “非常乐意。” —Would you like to help me with my English？　　 —___________________. With pleasure 第 ‹#› 页 ( )1)—Would you like to come and have lunch on Sunday? —__________！ I'd love to come. A．With pleasure　　 B．All right　　 C．Never mind　　 D．That's right ( )2)—Could you pass the salt, please? —________Here you are. A．I'm afraid not B．You're kidding C．It's a shame D．With pleasure A D 第 ‹#› 页 3.They're used for seeing in the dark. 【释义】 它们被用来晚上照明。 【精讲】 be used for doing...＝be used to do...被用来做……，是被动 语态。 be used as...被当作某物使用 【运用】 (1)纸是用来写字的。Paper is _______ ____ writing.＝Paper is ______ ___ write. (2)这根棍子被当作尺子。The stick ___ ________ ____ a ruler. used for used to is used as 第 ‹#› 页 ( )1)The National flag is used __________ a symbol of the country. A．to　　　　　　 B．for　　　　　　 C．as　　　　　 D．with ( )2)English is used __________ talking with others __________ a second language by travellers and business people all over the world. A．as; for B．for; as C．as; as D．for; for C B 第