Unit6 When was it invented SectionA Grammar Focus-3c课件2024-2025学年人教版英语九年级全册

Section A GF-4C Unit6 When was it invented? Oral practice-主动句改被动句 Oral practice--1. Change each sentence into passive voice: A car knocked him down yesterday. Two doctors and ten nurses make up the medical team． When I got there, they were cutting up a fallen tree． He was knocked down by a car yesterday． The medical team is made up of by two…． A fallen tree was being cut up, when I got there. 4)We’ll put on the play next Sunday． 5)Workers are building a new teaching building in our school． 6)They had completed the railway by the end of last year． The play will be put on next Sunday． A new teaching building is being built by workers in our school． The railway had been completed by the end of last year． 7)We should protect the earth． 8)You need to paint the wall． The earth should be protected． The wall needs to be painted． 4a Rewrite the sentences using the passive voice. 1. They sold the fridge at a low price. _______________________________ The fridge was sold at a low price. n. 冰箱 adj. 低的;矮的 2. Somebody stole my camera from my hotel room. _________________________________ _________________________________ My camera was stolen from my hotel room. pron. 某人 n. 重要人物 3. Where did you take these photos? __________________________________ 4. Our parents advised us not to go out alone. __________________________________ __________________________________ 5. Different writers translated the book into different languages. __________________________________ __________________________________ Where were these photos taken? We were advised by our parents not to go out alone. The book was translated into different languages by different writers. v. 翻译 1. You ____________ to the party last night, weren’t you? Why didn’t you go? 2. The earthquake happened all of a sudden, but luckily the villagers _____________ to a safe place. were invited eat, like, invite, tell, lock, ring, break, bring were brought 4b Complete the sentences with correct forms of the verbs in the box. 句子主语you与invite之间存在被动关系。 villagers与bring之间存在被动关系 n.地震 adj. 突然（的） be brought to sp. luck-lucky-luckily 3. The door ___________ when we arrived, so we ______ the bell. 4. The students ___________ not to eat or drink in class, but Ruby ______ the rule when she started eating a biscuit in science class. 5. The cookies __________ by the hungry kids in less than 20 minutes, and they really _____ them. was locked rang broke were told were eaten liked the door与lock之间为被动关系；而we与ring之间则为主动关系；其他各题相同。 n. 饼干 n.曲奇饼 v.锁上，锁住；n.锁； The telephone ______________ (invent) by Alexander Graham Bell. He __________ (born) in 1847. Mr. Bell ________ (work) on the invention of the telephone with Thomas Watson. was born was invented worked Decide whether active or passive forms should be used in these sentence. Write the correct forms in the blanks. 4c the telephone与invent之间存在被动关系；Mr. Bell与work之间是主动关系。 In 1875, Mr. Bell _________ (learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone _____________ (invent) in 1876. The first sentence that _________ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone ________ (use) around the world. learned was invented was said is used Mr. Bell与learn之间为主动关系。 adj.音乐的 n.器械；工具 构成 助动词 be + 及物动词的过去分词助动词 be + 及物动词的过去分词 be + vt. p. p. Many people English speak English. is spoken by many people. 当我们不知道谁是动作的执行者，或者没有必要指出谁是动作的执行者时，或者只需强调动作的承受者时，要用被动语态。 何时使用被动语态？何时使用被动语态？ 被动语态：主语是动作的承受者. 一般现在时： am／is／are + vt. p.p. 构成： be + vt. p.p. 一般过去时： was／were + vt. p.p. 情态动词： must (can/could/may)+be + vt. p.p. 构成： be + vt. p.p. shall /will be be going to be 一般将来时： + vt.p.p. 现在进行时： be (am/is/are) +being + vt.p.p. must plant The tree The ground be covered with must be planted on the ground. will be covered with in a few years’ time. trees Exercise Ⅰ. 单项选择 1. --- Today Chinese is becoming more and more popular. --- It _______ in many schools around the world. A. teaches B. is teaching C. has taught D. is taught D 2. We _______ to close the windows before we left the lab. A. tell B. told C. are told D. were told 3. --- Did you hear that water in Tai Lake smelt terrible? --- Yes. In fact, it _______.That's all because of the people and the factories around. A. polluted B. was polluted C. has polluted D. will pollute D B Ⅱ. 将下列句子变为被动语态 1. My parents bought me a computer last week. 2. We often hear the girl sing happily in her room. The girl is often heard to sing happily (by us) in her room. A computer was bought for me by my parents last week. 将下列句子变为被动语态。 1. He chose six story books the other day. Six story books _____ _______ by him the other day. 2. Uncle Lee gave Jack a large cake for he painted the wall wonderfully. Jack _____ _____ a large cake for he painted the wall wonderfully. 练一练 was given were chosen 3. A mouse ate half of the cake last night. Half of the cake _____ _____ by a mouse last night. was eaten 20 将下列句子变为主动语态。 4. Were these machines invented by Edison? _____ Edison _______ these machines? Did invent 5. The post card was sent to Linda by Paul. Paul _____ the post card ___ Linda. 6. America was discovered by Columbus. Columbus __________ America. sent to discovered 21 $$