"Interesting Life Clock" PPT courseware

Description

"Interesting Life Clock" PPT courseware

learning target

1. Learn new words on your own and understand the meanings of words such as "energetic", "theft", "big pincer" and "flower".

2. Read the text correctly and fluently, and recite the first paragraph of the text.

3． Understand several biological rhythm phenomena and characteristics introduced in the text and the relationship between biological rhythm and daily life.

It's another scene on the beach. Whenever the tide goes out, fiddler crabs crawl out of their burrows and run up and down the beach out of the water in search of food.

Fiddler crabs not only feed as the tide rises and falls, but also change the color of their bodies as the tide rises and falls.

The cycle of fiddler crabs foraging for food and changing body color coincides with the tide time, so it is called tidal rhythm.

Biological clock science is a science whose task is to study the time-related periodic phenomena in living organisms. Biological rhythms are summarized based on experience, but they have their basis in physiology and molecular biology. Circadian clockology has nothing to do with so-called circadian rhythms. According to the length of the cycle, biological rhythms are divided into four types:

(1) Supercircadian rhythm, that is, a rhythm with a period longer than one day.

(2) Near-tidal rhythm, which follows the 12.5-hour tidal rhythm.

(3) Sub-circadian rhythm, which means it occurs more than twice a day.

(4) Near circadian rhythm, a rhythm close to 24 hours.

Operation

The text introduces interesting biological rhythms with examples. Interested students can collect more relevant examples outside class and share them with everyone. You can also read another book by the author of this article, "Interesting Biology".

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For more information about the "Interesting Life Clock" PPT courseware, please click the "Interesting Life Clock ppt" tag.

"Interesting Life Clock" PPT Courseware 2:

"Interesting Life Clock" PPT Courseware 2 Learning Objectives 1. Learn new words on your own, and understand the meaning of words such as "energized, stealing flowers with large claws", etc. 2. Read the text correctly and fluently, and recite the first paragraph of the text. 3． Understand several biological rhythm phenomena and characteristics introduced in the text..

File Info

Update Time: 2024-10-04

This template belongs to Chinese courseware Western Normal University Edition Fifth Grade Chinese Volume 2 industry PPT template

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