人教版九年级全册 Unit 6 When was it invented?Section A Grammar focus 4a-4c 课件 (共17张PPT)

(共17张PPT)
SectionA Grammar Focus---4c
1. ruler (动词) ___________
2. near (副词) ______________
3. nation (形容词) _____________
4. 偶然；意外地 ______________
5. 发生 ______________
6. 毫无疑问；的确 ____________
7. 跌落 ____________
一、按要求写出下列词汇或词组
take place
nearly
rule(统治）
national
by accident
without doubt
fall into
学习目标
1. 熟练使用重点词汇、短语和句型；
2．一般过去时的被动语态的构成及被动语态需要注意的地方；
3. 情感态度价值观目标：
通过教师的引导，培养学生合作创新的能力。
含义：1.主语是动作的______________；
2.动作______________________。
结构：
例子：
The telephone was invented in 1876.
承受者
已完成或发生在过去
was/ were + done
动作的承受者
谓语动词的形式
完成下列句子
1. 拉链是什么时候被发明的？
______ _____ the zipper ________
2. 它于1893年被发明。
It ______ _________ in 1893.
was invented
When was invented
3. 它是由谁发明的？
______ _____ it invented ______
4. 它是由惠特科姆 贾得森发明的。
It ____ ________ ___ Whitcomb Judson.
was invented by
Who was by
5. 贝尔于1876年发明了电话机。
Bell _________ the telephone in 1876.
6. 电话机在1876年被贝尔所发明。
The telephone _____ ________ _____
Bell in 1876.
invented
was invented by
4a
Rewrite the sentences using the passive voice.
点拨：原句为一般过去时态，原句的谓语动词为sold，宾语为the fridge；改为被动语态时，应将the fridge作主语，谓语动词用was sold的形式。
1. They sold the fridge at a low price.
_______________________________
The fridge was sold at a low price.
点拨：分析原句的句子结构可知，stole是谓语动 词，my camera是句子的宾语；改为被动语态句时，应将my camera作句子主语，谓语动词用was stolen的形式。
2. Somebody stole my camera
from my hotel room.
_________________________________
_________________________________
My camera was stolen from my hotel room.
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.
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.
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 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
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
课堂小结
一般过去时的被动语态结构：
Was或were+动词的过去分词
补全下列主动句变被动句。
1. Jenny put her clothes in the suitcase last night.
Her clothes____ ____ in the suitcase last night.
2. The twins sang an English song that day. An English song ____ _____ ___ by the twins that day.
3. Did they build a bridge here a year ago ____ a bridge ____ here by them a year ago
4. They sold out the light green dresses yesterday. The light green dresses ____ _____ _____ out.