"The Mystery of Life in the Universe" PPT free courseware

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"The Mystery of Life in the Universe" PPT free courseware

Part 1 content: Lesson 1

Teacher, there are several circles here. Fill in the corresponding circles with the Milky Way, the Solar System, the Earth, and the Universe. Give it a try!

First reading text

Please read the text freely, paying attention to the pronunciation of the characters and reading the sentences thoroughly.

Thinking while reading: What aspects does this article write about the "mystery of life in the universe"?

Read it, recognize it

Developed Theory Similar Speculation Origin Appropriate

Oxygen provides energy, day and night, mysterious observation

photography spots blight dryness desert resistance

Factors Investigation Cultivate Test Detection Magnetic Field

Read the text aloud freely, pay attention to the correct pronunciation of the words, read the sentences thoroughly, and think while reading: What aspects does this article write about the "mystery of life in the universe"?

Whether there is life in space beyond Earth remains a fascinating question.

And whether there is life on Mars.

Summary: By finding the general sentences of each natural paragraph and integrating them, we sorted out the main content of the article: focusing on the mystery of life in the universe, the author analyzed which celestial bodies in the universe may have life, what conditions must be met for the existence of life, Whether there is life on Mars leads to the conclusion that "whether there is life in the universe remains to be explored."

The Mystery of Life in the Universe PPT, Part 2: Lesson 2

Text explanation

In the last class, we read "The Mystery of Life in the Universe" for the first time. Do you still remember what the text mainly talked about?

Focusing on the mystery of life in the universe, the author analyzed which celestial bodies in the universe may have life, what conditions must be met for the existence of life, and whether life exists on Mars, and thus concluded: Whether there is life in the universe remains to be explored.

Read the text aloud and find out what are the prerequisites for the existence of life?

The temperature suitable for biological survival is generally between -50℃ and 150℃.

necessary moisture.

An atmosphere of appropriate composition.

There is enough light and heat.

guided exploration

Is there life on Mars? Is it possible for humans to colonize Mars? Look for evidence in the text to prove your point.

Point 1: There is life.

1. Theoretically, the universe is infinite and the earth is not the only one.

2. Mars is similar to Earth.

(1) The rotation times are similar.

(2) There are days and nights, the lengths of days and nights are similar, and there are four seasons.

3. Two guesses from scientists.

(1) The black lines on the surface of Mars are canals dug by Martians.

(2) The color of the surface of Mars changes with the seasons. It is the plants on the surface of Mars that change color.

Point 2: No life exists.

1. The two guesses of scientists are not valid.

(1) Photos of Mars taken confirm that there are no canals on Mars.

(2) Close observation confirms that the seasonal changes in the color of the surface of Mars are not caused by the color change of plants.

2. Mars has little water, thin atmosphere, low temperature, and no magnetic field. “It is difficult for life to exist on Mars.”

3. The probe lands on Mars, two important results:

(1) No organic molecules have been detected in the soil of Mars. Without organic molecules, plants would not be able to grow.

(2) No microorganisms have been found on the surface of Mars.

Point 3: Not confirmed.

Living materials may exist in the rock formations of Mars, which needs further study.

1. The two guesses of scientists are not valid.

(1) Photos taken confirm that there are no canals on Mars.

(2) Close observation.

It is confirmed that the seasonal changes in the color of the surface of Mars are not caused by the color change of plants.

The Mystery of Life in the Universe PPT, Part Three: Summary of the Full Text

Do you know in what order the article is written?

Ask questions - analyze and explore - draw current conclusions.

Keywords: Free download of Chinese PPT courseware for the sixth grade of the People's Education Press, Volume 1, PPT download of the Mystery of Life in the Universe, .PPT format;

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Update Time: 2024-11-20

This template belongs to Chinese courseware The first volume of Chinese language for sixth grade compiled by the People's Education Publishing House industry PPT template

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