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八年级下册第七单元语法之被动语态

Destiny_W0xZx 发表在 Grammar2017-4-21 14:38 [复制链接]
教学过程
一、创设情境--Warming up
Help students review the Reading by asking some questions:
1) Where do ORBIS doctors do operations?
2) What is needed by ORBIS to help blind people?
  More money is needed by ORBIS to help blind people.
二、自主合作
探究活动一Talk about Passive voice
1) Many people speak English.    (Active voice)
English is spoken by many people.  (Passive voice)
2) They built a new bridge over the river.  (Active voice)
A new bridge was built over the river.   (Passive voice)
We use the active voice when it is important to know who performs the action.
We can also use the passive voice when
1. It is obvious who performs the action.
Word processing skills are taught in our computer lessons.
2. We do not know or do not want to know who performed the action.
The printer was sold already.
3.We think the action is more important than the person who performs the action.
Educational CD-ROM are sold in many countries.
We can also introduce the person who performs an action with the passive voice using ‘by’. We put ‘by’ and the name(s) of the person(s) at the end of a passive sentence.
(活动方式:独立思考—小组讨论—小组展示—小组总结)
探究活动二Passive voice with ‘by
1.Explain that we can also use the passive voice when we want to mention the doer( 实行者) or agent who does something. Introduce the concept of bywhich enables us to say the name of the doer. We can use byto say who or what does the action.
2.        Read through the sample sentences on page 49 and make them understand how to use ‘by’.
3.        Tell the students to complete ‘Work out the rule!’ on their own.
(活动方式:小组讨论—小组汇报)
探究活动三Do the exercises
1 Complete the sentences in Part A on page 99, then check the answers in groups
2 Complete the conversation in Part B using the passive voice.
3 Change the active voice into the passive voice.
1). We clean the classroom every day.
_______________________________________
2). He waters flowers twice a week.
_______________________________________
4 Draw the conclusion
We use ‘am’, ‘is’, ‘are’ + past participle to form the passive voice in the simple present tense.
We use ‘was’, ‘were’ + past participle to form the passive voice in the simple past tense.
(活动方式:独立思考—小组讨论—小组展示)
三、归纳总结
What have you learned in this class? Do you have any questions to ask?
___________________________________________________
四、检测反馈
一. 词汇
1 Many trees __________(plant) in my hometown every year.
2 Rice __________(grow) two thousand years ago by Chinese people.
3 Information __________(keep) in the computer just now.
4 The young trees __________(not water) yesterday.
5 The car __________(design) by Andy Lu.
二 单选
(    ) 1 ________ a new library __________ in our school last year?
      A. Is, built   B. Was, built   C. Does, build    D. Did, build
(    ) 2. An accident ______ on this road last week.
     A. has happened  B. was happened  C. is happened D. happened
(    )3. The Great Wall _______ all over the world.
     A. knows     B. knew     C. is known      D. was known
(    )4. Who ______ this book _____? ------ By Mo Yan in 2010
A. did, written by  B. was, written by
C. did, written     D. was, written
(    )5. A story ______ by granny yesterday.
A. was told us     B. was told to us      
C. is told us       D. told us
(    )6. The monkey was seen _______ off the tree.
A. jump   B. jumps         C. jumped         D. to jump
三 缺词填空。
A professor told his students to go into the city slums(贫民窟)to study the life of 200 boys. He asked them to w______ reports about each boy's life in the f______.Every one of the students wrote, "He doesn't have any hope."
Twenty-five years l______, another professor read about the earlier study.He told his students to find out what had happened to these boys.Of the 200 boys, 20 had moved away or died. Nobody knew what had happened to them.They t______ very hard and found the other 180 people.Among them, 176 had become successful people, s______ as doctors, teachers and scientists.
The professor was very s______ and decided to study it f_______.Luckily, all of them were living near the place and he was a______ to ask each one, "What made you successful?" Each one answered with feeling, "There was a teacher".The teacher was still living there, so the professor found her and asked the old woman what she had used to pull those boys out of the slums, and c_______ them into successful people.
The teacher's eyes began to shine and she said with a sweet smile, "It's really very e______. I loved those boys."
五、评价提升
布 置作 业
板 书
设 计
教 学反 思
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