"Ocean - Hope of the 21st Century" PPT courseware 3

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"Ocean - Hope of the 21st Century" PPT courseware 3

awe, threat, lack

Generous Price Contains

Energy crisis, despair

Endless display of divine power

"Generosity" has two meanings. One means being full of righteousness and passionate; the other means being generous and not stingy. In this lesson, we should choose the second meaning, which means that the sea is generous and not stingy, providing humans with abundant seafood and salt.

"Lack" means lack or poverty.

"Awe" means to respect and fear at the same time.

"Looking at the ocean and sighing": This refers to lamenting one's own insignificance in the face of great things. Nowadays, it is often used as a metaphor for wanting to do something but not having enough strength, and feeling helpless.

There are roughly three ways to summarize the meaning of natural paragraphs:

1. Directly quote words and sentences from the text.

2. Excerpt the key words in the text and connect them in series.

3. Summarize in your own words.

1. Astronauts look back at the Earth.

2. The relationship between man and the ocean is very close.

3. People "look at the ocean and sigh".

4. Humanity is ushering in a new era of developing and utilizing the ocean.

5. Develop marine mineral resources.

What difficulties do we humans currently encounter on land? Faced with such a dilemma, what solutions have humans come up with?

Tidal energy and temperature difference energy in the ocean are inexhaustible energy. It is estimated that the tidal energy in the world's oceans is about 3 billion kilowatts, which is 1.6 times the current global power generation capacity, and can generate up to 260 billion kilowatt hours of electricity every year. People call tidal energy the "blue sea of ​​coal."

However, if humans want to develop and utilize the ocean, they must first protect the ocean and cherish marine resources. Only in this way will the ocean be happy to make its contribution.

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For more information about the "Hope of the Ocean in the 21st Century" PPT courseware, please click the "Hope of the Ocean in the 21st Century" ppt tag.

"Ocean - Hope of the 21st Century" PPT courseware 2:

"Hope of the Ocean in the 21st Century" PPT Courseware 2 The ocean is a blue treasure house. If the seawater on the entire earth is refined, 5.5 million tons of gold, 400 million tons of silver, 4 billion tons of copper, and 13.7 billion tons of iron can be obtained. It can be said that it is available on land and in the ocean, and the ocean...

"Ocean - Hope of the 21st Century" PPT courseware:

"Hope of the Ocean in the 21st Century" PPT courseware Do you know the ocean, have you seen the ocean, and understand the ocean? Why is the ocean the hope of mankind in the 21st century? The ocean is a blue treasure house. If all the seawater on the earth were refined, 5.5 million tons of gold, 4...

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Update Time: 2024-08-14

This template belongs to Chinese courseware Jiangsu Education Edition Chinese Language for Sixth Grade Volume 2 industry PPT template

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