"Underwater World" PPT courseware free download

Description

"Underwater World" PPT courseware is free to download, with a total of 36 pages.

Pre-class reading

Hello kids! The underwater world is wonderful, with strange scenery and rich products. Have you seen it? Read the text and take a look. Is it the same as what you see?

Sea cucumber is a class of echinoderms in the ocean. The body is slightly cylindrical, the body wall is multi-muscular, and there are tentacles around the mouth. There are many types of sea cucumbers, which live on the seabed and eat various small animals. Nowadays, sea cucumber is a precious food for mankind.

Squid is a marine animal, commonly known as "cuttlefish" or "cuttlefish". The squid is a mollusk with an oval and flat body, pale color, with uneven ink spots, a pair of big eyes on the head, and ten arms on the edge of the mouth. There are suckers on the inside of the arms and the shell has degenerated. The sac near the anus can secrete ink-colored liquid, which is released when in danger, turning the nearby seawater black to cover its escape.

word reveal

whisper alarm muscle octopus

cells algae up to reserves metal

overall perception

Lectures in detail

Animals in the sea each have their own methods of activity. Sea cucumbers crawl by stretching and contracting their muscles and can only move forward four meters per hour. There is a fish with a body like a shuttle that can swim dozens of kilometers per hour. When it attacks other animals, it is faster than an ordinary train. Squids and octopuses can suddenly spray water forward and use the reverse thrust of the water to quickly retreat. There are some shellfish that don't move on their own, but they can travel long distances for free under the ship.

By introducing the strange sights and rich resources of the underwater world, the text explains that the seabed is a world with strange scenery and rich products, stimulating our interest in loving nature and exploring the mysteries of nature.

Class summary

This text introduces us to several small animals, several plants and mineral resources in the underwater world. In fact, there are many types of creatures in the underwater world. Some resources have been discovered, but they cannot be used reasonably because technology cannot keep up. What is even more regrettable is that there are still more resources that have not been discovered.

Class exercises

Keywords: Free download of underwater world PPT courseware, download of underwater world PPT, .PPT format;

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"Underwater World" PPT quality courseware:

"Underwater World" PPT quality courseware Part 1: First reading of the text Listen to the text read aloud, clear up new words, and talk about it: Which sentence in the text summarizes the characteristics of the underwater world? The bottom of the sea is really a ________, ________ world. Word Learning Serenity Tool..

"Underwater World" PPT (second lesson):

"Underwater World" PPT (Second Lesson) Part One: Lesson Objectives 1. Read the text emotionally and understand the content of the text. (Key points) 2. Understand what kind of place the underwater world is, stimulate interest in loving nature and exploring the mysteries of nature. (difficulty)..

"Underwater World" PPT (first lesson):

"Underwater World" PPT (first lesson) Part 1: Teaching objectives 1. Be able to recognize 10 new words and write 11 new words. (Key points) 2. Read the text correctly, fluently and emotionally. (Key points) 3. Understand what kind of place the underwater world is and stimulate enthusiasm...

File Info

Update Time: 2024-10-05

This template belongs to Chinese courseware The second volume of third-grade Chinese compiled by the People's Education Publishing House industry PPT template

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