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"The Movement of the Earth" Earth and Map PPT Courseware 2
learning target
1. Use a globe to correctly demonstrate the rotation and revolution of the Earth, and explain its basic motion laws.
2. Understand the earth’s day and night cycle.
3. Understand the jet lag phenomenon and be able to explain some jet lag phenomena in life.
4. Comparatively analyze the sun exposure on the two solstices and explain the changes in the four seasons.
5. Understand the boundaries of the five zones and give examples to illustrate the characteristics of each zone.
The occurrence of jet lag
Since the earth rotates from west to east, at the same latitude, a location that is relatively eastward will see the sunrise earlier than a location that is relatively westward, so the time will be sooner or later.
Why is there a time difference when Changchang and his aunt exchange greetings at the same moment?
Because the two places are too far apart, the sun has just risen in Beijing, China, where Changchang is, but it has already set in New York, the United States, where my aunt is.
Find China on the map and see which temperature zone most of our country belongs to?
Direction: from west to east
Period: 1 year (365 days)
Center around: Sun
Phenomena produced: changes in the four seasons, changes in the length of day and night, and the emergence of the five zones
The emergence of the division of five zones
The sun shines so slantly here that there are even periods of time when the sun is always below the horizon, and the climate is cold all year round. Which temperature zone is this?_____
For a long time, the noon sun always shines overhead, and the climate is hot all year round. Which temperature zone is this?_____
The ground here receives less sunlight and heat than in the tropics and more than in the frigid zone, and the four seasons change more obviously. Which temperature zone is this?_____
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