"The Forest of Long Fairy Tales" PPT Courseware 2

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"The Forest of Long Fairy Tales" PPT Courseware 2

However, in the near future, we may no longer be able to read fairy tales in the new forest.

At that time, if you listen quietly, what kind of beautiful fairy tale will you hear?

Thinking: Compare what these two sentences mean and tell why. When is "that time"? What do you hope it will be like then?

A long time ago - about 10,000 years ago - there were 6.2 billion hectares of forests on the earth, which is nearly half of the earth's land area.

Can you imagine what a green world it is?

Word accumulation:

lush, verdant

Green mountains and green waters, red flowers and green trees

Green and lush, luxuriant branches

Green trees and lush greenery

Column numbers

1. However, in 2000, there were less than 3.9 billion hectares left, which was less than one-third of the earth's land area.

2. Tropical rainforests play a decisive role in global ecological balance. But it is declining at a rate of tens of millions of hectares every year - which is roughly equivalent to a dense rainforest the size of a football field disappearing from our eyes every minute.

3. In China, through years of sustained efforts, the forest coverage rate is gradually increasing. However, China's forest coverage rate in 2000 was only 16.55%, which was only more than half of the world average.

Pandora's box

How do you understand "Once the land is without the protection of the forest, it is like opening Pandora's box, and disasters will follow one after another?" What does "Pandora's box" refer to?

Continuously: The toes of the people behind follow the heels of the people in front, describing a large number of people, one after another.

It comes from Greek mythology and refers to a mechanism that contains disasters.

If forests disappear from the earth, the consequences will be:

① 99% of terrestrial life will become extinct, and about 4.5 million biological species will cease to exist.

② 90% of the world’s fresh water will flow into the sea in vain, causing serious water shortages for mankind.

③ Biological nitrogen fixation will be reduced by 90%, carbon dioxide on the earth will increase, biological oxygen release will decrease, and the earth will heat up.

④Wind speed increases in many areas, and hundreds of millions of people will be destroyed by wind disasters.

⑤ Floods are frequent, and a large number of farmland, cities, and roads will be washed away by water.

⑥Human beings cannot obtain wood and forest by-products, making production and life difficult.

⑦ As air pollution, noise pollution, and solar radiation increase, humans will not be able to survive.

Keywords: Forest teaching courseware with a long fairy tale, Chinese courseware for the second volume of Chinese version A for fourth grade, Chinese slide courseware download for the fourth grade, PPT courseware download with a forest with a long fairy tale, .ppt format

For more information about the PPT courseware "The Forest of Long Fairy Tales", please click the "Forest of Long Fairy Tales" ppt tag.

"The Forest of Long Fairy Tales" PPT courseware 3:

"The Forest of Long Fairy Tales" PPT Courseware 3 Learning Objectives 1. Master the 11 new words in the text and independently accumulate good words and sentences. 2. Understand the content of the text, realize the important impact of a series of vicious cycles caused by the rapid disappearance of forests on human survival, and establish conservation and environmental protection...

"The Forest of Long Fairy Tales" PPT courseware:

"The Forest of Long Fairy Tales" PPT courseware teaching objectives 1. Read the text thoroughly, read the pronunciation of the characters accurately, understand and master 10 new words in context, be able to write 6 characters, and be able to complete literacy tasks independently. 2. Read the text aloud and accumulate good words and sentences independently. 3. Through learning, understand the nature of the forest..

File Info

Update Time: 2024-10-06

This template belongs to Chinese courseware Version A, Chinese for Grade 4, Volume 2 industry PPT template

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