Unit6 When was it invented ? Section A grammar focus-4c 五山二中 郭德志

pair work zipper Whitcomb Judson 1893 fridge Harrison 1851 keep the food fresh

Alexander Graham Bell 1876 talk with people an instrument similar to a telephone 一个类似于电话的器械 translate...into... 把...翻译成... at a low price 以一个低的价格 Alexander Graham Bell 1876 talk with people

Grammar Focus 火眼金睛 When was the zipper invented? It was invented in 1893. Who was it invented by? It was invented by Whitcomb Judson. When was tea brought to Korea? It was brought to Korea during the 6th and 7th centuries. What is the hot ice-cream scoop used for? It’s used for serving really cold ice-cream.

我发现 1.时态： 一般现在时态的被动语态： am / is / are + 动词的过去分词 一般过去时态的被动语态： was / were + 动词的过去分词 2.结构： 被动语态的肯定句： 主语 + be动词 + 过去分词 + (by …) + 其他 特殊疑问句 疑问词 + be动词 +主语 + 过去分词 + 其他？

牛刀小试 抢答时间 were invented 1.Cars (invent) in 1885. 2.Tom (tell)not to go out alone by (they) often. 3.那个蛋糕是谁吃的？ ** ？ 4. animals, killed，for, were, some , meat, their(连词成句） ** . is told them Who was the cake eaten by? Some animals were killed for their meat 抢答时间

Show Time 我的地盘我做主！ 活动规则： 1.小组抽签选题，一张卡片一人。 2.小组讨论，将卡片组成一句主动语态的句子，再变换成一句被动语态的句子。 3.上前展示，解释排列及变化的原因。 表现好的小组得分越高哦！ 我的地盘我做主！

pk时刻 1. We used them for seeing in the dark. They were used by us for seeing in the dark. 2.He changed the style of his shoes. The style of his shoes was changed by him. 3.When did he finish his homework? When was his homework finished by him? 4.She puts her keys in a box. pk时刻 Her keys are put in a box. 5.We planted many trees last year. Many trees were planted by us. 6.Bell invented the telephone in 1876. The telephone was invented by Bell in 1976.

主动句变为被动句所遵循的4个步骤： 1.把原句中的宾语变为被动句的主语。 2.把动词变为被动形式即be+过去分词，句子的时态保持不变。 3.原来的主语需要放在by后面以它的宾格形式出现，如不需要则可省略。 4.其它的成分（定语、状语）不变。

Practice 4a 1. They sold the fridge at a low price. Rewrite the sentences using the passive voice. 1. They sold the fridge at a low price. _______________________________ The fridge was sold （by them) at a low price. 2. Somebody stole my camera from my hotel room. _________________________________ My camera was stolen by somebody from my hotel room.

3. Where did you take these photos? __________________________________ Where were these photos taken (by you)? 4. Our parents advised us not to go out alone. ______________________________ _________________ We were advised not to go out alone by our parents. 5. Different writers translated the book into different languages. The book was translated into different languages by different writers.

主动语态？ or 被动语态？ 主语是谓语的执行者时用主动语态； 主语是谓语的承受者时用被动语态。 脑洞时间

4b Complete the sentences with correct forms of the verbs in the box. eat, like, invite, tell, lock, ring, break, bring 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 突然 were brought

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 were told broke were eaten liked

Decide whether active or passive forms should be used in these sentence. Write the correct forms in the blanks. 4c The telephone ______________ (invent) by Alexander Graham Bell. He __________ (born) in 1847. Mr. Bell ________ (work) on the invention of the telephone with Thomas Watson. was invented was born worked

音符 learned 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. was invented was said is used

Writing who be used for umbrella when be brought be made of 雨伞是我国一项古老的发明，请根据 表格内容，用被动语态写出一个小短文。 who be used for umbrella when be brought be made of

Writing 大显身手 who Lu Ban’s wife when Spring and Autumn Period(春秋时期） be made of wood and silk (丝绸) brought England 1747 be used for keep off the rain The umbrella is an old invention in China..... ……I think the invention is very useful./I think it’s a great invention.

Writing The umbrella is an old invention in China. It was invented by Lu Ban’s wife, and it was invented in Spring and Autumn Period, it was made of wood and silk ,it was brought to England in 1747. It is used for keeping off the rain . I think it’s a great invention.

summary 一般现在时 时态 一般过去时 肯定句 被动语态 结构 特殊疑问句 谓语执行者 辨别 谓语承受者

谁与争锋 一.改错 1) He cut the potatoes really,really thin. 　一.改错　 1) He cut the potatoes really,really thin. 　→The potatoes are cut really, really thin by he. 　 2) He often advises me not to play computer games. 　→Me was often advises not to play computer games by him. 　二.用所给词的适当形式填空。 1）I (not invite) to his party, but I still (buy) a gift for him yesterday. 三.把主动语态变为被动语态。 1）He cut down a tree yesterday. 谁与争锋 were, him I, am, advised wasn’t invited bought A tree was cut down by him yesterday.

Thank you!