"Only One Earth" PPT Courseware 5

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"Only One Earth" PPT Courseware 5

Earth

The Earth is the third planet from the inside to the outside of the solar system. It is also the terrestrial planet with the largest diameter, mass and density in the solar system. The earth is 4.4 to 4.6 billion years old. There is a natural satellite, the moon, that rotates around the earth in a 30-day period, while the earth rotates in a nearly 24-hour period and orbits the sun in a one-year period. 365 days, 5 hours, 48 ​​minutes and 46 seconds

What do you know about the earth through previewing the text?

I learned about the loveliness of the earth, because the earth is a crystal clear sphere wrapped in aqua blue "gauze". The earth is the cradle of human life, both beautiful and spectacular as well as amiable. I understand the fragility of the earth, because it is like a "small boat" in the sea in the vast universe. We also learned that the earth’s resources are limited. Uncontrolled exploitation and random destruction will not only damage the earth, but also pose serious threats to human survival.

Fill in the blanks according to the text:

Because the scope of human activities is ( ), and ( ) on the earth, humans cannot count on ( ), so we have to ( ).

According to astronauts who are lucky enough to fly into space, when they look at the earth while flying in the sky, what they see is a crystal clear sphere with blue and white patterns intertwined on it, surrounded by a thin layer of aqua blue. Color "shayi".

It is a planet with a radius of only more than 6,300 kilometers. In the universe of bright stars, it is like a small boat.

What explanation methods are used in the text?

1. The earth, the mother of mankind, the cradle of life, is so beautiful, spectacular, and amiable.

1. This sentence is the author’s praise for ________, highlighting the ________ of the earth and reflecting the author’s _________ for the earth.

2. What explanation method is used in this sentence?

The sentence compares ________ to ________.

3. The use of metaphor makes the sentence __________ in expression.

2. However, compared with the vast universe, the earth is small. It is a planet with a radius of only more than 6,300 kilometers. In the universe with bright stars, it is like a small boat. It is only so big, it will not Grow up again.

1. This passage uses ______, ______, ______. and other explanation methods.

2. What is the author’s purpose in writing this way?

The earth is small, which means that the earth's resources are limited. We should cherish and protect the earth.

Cultivated land: 40 hectares are lost every minute, approximately 21 million hectares are lost every year.

Forest: 21 hectares disappear every minute, about 11 million hectares disappear every year.

Desertification: 11 hectares of land become desertified every minute, and about 6 million hectares of land become desertified every year.

Sewage: 850,000 tons of sewage are discharged into rivers and seas every minute, and the annual sewage discharge is about 450 billion tons.

People: 28 people die from environmental pollution every minute, and about 15 million people die from environmental pollution every year.

What are the environmental anniversaries?

International Wetlands Day - February 2nd World Water Day - January 18th, 1993

World Meteorological Day - March 23 Earth Day - April 22

World No Tobacco Day - May 31st World Environment Day - June 5th

World Day to Combat Desertification and Drought - June 17

World Population Day--July 11

International Day for the Protection of the Ozone Layer - September 16th World Animal Day - October 4th

World Food Day - October 16th International Biodiversity Day - December 29th

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"Only One Earth" PPT teaching courseware:

"Only One Earth" PPT teaching courseware Part One: Objectives of this lesson: 1. Be able to recognize 6 new words in this lesson, be able to write 11 new words, and understand the words composed of the new words. (Key points) 2. Understand the content of the text and understand why the author said there is only one earth. (Key point) 3. Increase...

"Only One Earth" PPT download:

"Only One Earth" PPT download Part 1: Reading aids Students, do you know what natural resources the earth has? There are six major categories of resources on the earth, namely land resources, water resources, mineral resources, climate resources, marine resources and biological...

"Only One Earth" PPT:

"Only One Earth" PPT Part One Content: Pre-class Introduction Students, do you know why we say we only have one Earth? Humanity has only one earth, and protecting the earth is the common voice of people all over the world. This article expresses love in intuitive and clear language...

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Update Time: 2024-07-22

This template belongs to Chinese courseware Hunan Education Edition Fourth Grade Chinese Volume 2 industry PPT template

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