Unit 6 Section A Grammar Focus - 4c课件 2023-2024学年人教版英语九年级全册

Unit 6 When was it invented? Unit 6 When was it invented? Section A Grammar focus – 4c 1. To learn to understand and use the passive voice in simple past tense. 2. To learn to rewrite sentences using the passive voice. 3. To know something about how the telephone was invented. Let’s play a guessing game. Checking your textbook is not allowed. When was the computer invented? It was invented in 1971. A.1876 B.1885 C.1927 D.1971 E.1893 When was the car invented? It was invented in 1885. A.1876 B.1885 C.1927 D.1971 E.1893 When was the telephone invented? It was invented in 1876. A.1876 B.1885 C.1927 D.1971 E.1893 When was the zipper invented? It was invented in 1893. A.1876 B.1885 C.1927 D.1971 E.1893 When was the TV invented? It was invented in 1927. A.1876 B.1885 C.1927 D.1971 E.1893 一般过去时的被动语态的结构： be + v-ed was / were + v-ed eg. The letter was brought to their son by Tom yesterday. The cookies were eaten by kids last night. Complete the following sentences. 1. 拉链是什么时候被发明的？ ______ ______ the zipper ________? 它于1893年被发明。 It ______ _________ in 1893. 2. 它是由谁发明的？ ______ _____ it invented ______? 是由Whitcomb Judson发明的。 It ______ _________ _______ Whitcomb Judson. was invented When was invented Who was by was invented by 3. 茶叶什么时候被带到朝鲜的？ ______ ______ tea _________ to Korea? 是在六到七世纪之间被带到朝鲜的。 It ______ ________ to Korea ________the 6th and 7th centuries. 4. 热冰淇淋勺用来做什么？ What _____ the hot ice-cream scoop ______ ______? 它用来盛很凉的冰淇淋。 It’s ______ ______ ________ really cold ice-cream. When was brought was brought during is used for used for serving Alexander Graham Bell _________ the telephone in 1876. invented The telephone _____ _______ (by Alexander Graham Bell) in 1876. Active Voice Passive Voice was invented 1.主语与宾语交换位置，主动语态里的主语前加by。 2.谓语动词改成被