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行业类别 | 格式 | 大小 |
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冀教版八年级下册英语 | pptx | 6 MB |
描述
《The World Is a Big Place》Know Our World PPT教学课件
第一部分内容:Learning Targets
Key words & phrases:
planet, billion, total, increase, surface, Indian, Atlantic, Arctic, in total, one third, be covered with…, two thirds
Key sentences:
1. Can you point them out?
2. The earth is a very special planet, and it faces a big problem.
3. In the year 2010, the world’s population was over 7 billion in total.
4. It is increasing very quickly.
5. And by 2050, the world’s population may reach 9 billion.
6. We can’t live in water, and only about one third of our planet is land.
7. Antarctica is covered with snow and ice all year round.
8. The earth is our home now,and it will be our home in the future.
9. It has the highest point on the earth in the Himalayas.
Grammar: passive voice
... ... ...
The World Is a Big PlacePPT,第二部分内容:Warming up
What problems the earth faces?
Population problems
Environmental pollution
Poverty
Exhausted resource
Words and expressions
planet n. 行星
billion n. 十亿;千兆
total n. 总计;总数
adj. 总的;总计的
increase v. 增加;增大
surface n. 表面;表层
Indian adj. 印度的 n. 印度人
... ... ...
The World Is a Big PlacePPT,第三部分内容:Presentation
Listen and read
The earth is a very special planet, and it faces a big problem. In the year 2010, the world’s population was over 7 billion in total. It is increasing very quickly. By 2025, the world may have about 8 billion people. And by 2050, the world’s population may reach 9 billion.
There is another problem. People can’t live everywhere on the earth. We can’t live in water, and only about one third of our planet is land. But parts of this land are very dry. These dry places are called deserts. Some areas have very high mountains. Others have a lot of snow and ice. It is not easy to live in those places.
There are seven continents: Asia, Africa, Australia, Antarctica, Europe, North America and South America. Antarctica is covered with snow and ice all year round. Luckily, people can live on the other six continents. On these continents, there are green forests, fresh water and rich lands.
... ... ...
The World Is a Big PlacePPT,第四部分内容:Let’s Do It!
1.Read the lesson and match each paragraph with its main idea.
Paragraph 1 a. Six of the seven continents are
Paragraph 2 b. We should treat the earth well.
Paragraph 3 c. An increasing population is a big
Paragraph 4 d. Two thirds of the earth is covered
Paragraph 5 e. People cannot live everywhere on
2.Fill in the blanks with the correct forms of the words in the box.
increasedrysurfacebilliontotal
1. The number of swimmers here is __________ quickly because it’s very hot these days.
2. The school has a __________ of 900 students.
3. I think it may be the __________ season of the year.
4. The __________ of our body is skin. It protects us.
5. How many __________ of people are there in the world now?
... ... ...
The World Is a Big PlacePPT,第五部分内容:Language points
1. Can you point them out?
point v.指,指向。
常用短语:point at指着;point out指出,说明。
例:He pointed out the dangers of driving alone.
他指出了单独开车的危险性。
Can you point out the mistakes in this picture?
你能指出这张图片中的错误吗?
2. The earth is a very special planet, and it faces a big problem.
face v. 面临;面对。
它在此作及物动词,后面可接人或表示困难、形势、问题等的抽象名词或动名词作宾语。
例: You should face the challenge bravely.
你应该勇敢地面对挑战。
3. In the year 2010, the world’s population was over 7 billion in total.
(1) billion n.十亿。其复数形式为billions。当其前有具体的数词时,用单数形式,表示确数;当其前没有数词或由some, several, many等词修饰时,用复数形式,且其后要接介词of,表示概数。类似用法的词还有hundred(百), thousand(千), million(百万)等。
例: This company earns two billion dollars a year.
这家公司一年要赚20亿美元。
Billions of stars twinkled in the sky.
无数的星星在天空中闪烁。
(2) in total意为“总计,合计,总共”, 相当于in all。
a total of … 总数为……
例: His sister has three hundred stamps in total.
他的姐姐总共有三百张邮票。
Our class has a total of 60 students.我们班总共有60人。
... ... ...
The World Is a Big PlacePPT,第六部分内容:Grammar
被动语态
被动语态表示主语是谓语动作的承受
者,一般说来,当强调动作承受者,不必说出执行者或执行者含糊不清时,多用被动语态。
1. These dry places are called deserts.
2. Antarctica is covered with snow and ice all year round.
3. It must be treated well for our children and for our children’s children, too!
4. It’s pronounced like the letter “A”.
被动语态——构成
be + 过去分词( be随着主语人称和数以及时态的不同而变化)
can / must / may / should … + be + 过去分词(含有情态动词的被动语态)
主动语态变为被动语态
一般现在时:
主:We believe him.
被:He is believed by us.
一般过去时:
主:He bought his children some pens.
被:Some pens were bought for his children by him.
一般将来时:
主:Everyone will know the truth soon .
被:The truth will be known by everyone.
... ... ...
The World Is a Big PlacePPT,第七部分内容:Exercises
一、单项选择
1. We have a lovely room. It’s one of ____ in the hotel.
A. nice B. nicer
C. nicest D. the nicest
2. ____ of the students are from the countryside.
A. Third quarter B. Three quarters
C. Three quarter D. Third quarters
3. —Who has ____ marks in English, Wang Lin, Zhang Fang or Li Hong? —Li Hong.
A. good B. better C. best D. the best
4. Hong Kong _____ to be a good place for eating today.
A. knows B. knew
C. is knownD. was known
... ... ...
The World Is a Big PlacePPT,第八部分内容:Summary
1. Learn some new words and expressions.
2. Review the present perfect tense
3. Master the passive voice.
... ... ...
The World Is a Big PlacePPT,第九部分内容:Homework
1. Recite the words and phrases in this lesson.
2. Complete the related exercises.
3. Preview next lesson
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文件信息
更新时间: 2024-08-20
所属频道:冀教版八年级下册英语
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