"Strange Amber" PPT courseware 7

Description

"Strange Amber" PPT courseware 7

Eliminate roadblocks

amber rosin dusted with spiders noon

Oozing, leaning forward and backward, struggling, surging, sticky

fly hot one even

Inside that piece of transparent amber, the two little things were still lying on their backs. We can see every vellus hair on their bodies, and we can imagine how they were struggling in the sticky rosin, because there are several black rings around their legs. From that piece of amber, we can infer the story that happened ten thousand years ago, and we can know that in ancient times, there were already such flies and spiders in the world.

Word analysis:

From that piece of amber, we can deduce the story that happened ten thousand years ago.

From that piece of amber, we can guess the story that happened ten thousand years ago.

Read the text silently, analyze the conditions required for the formation of rosin balls, and explain the reasons.

①The first condition must be summer, only summer days are hot.

②There are also cloudy and rainy days in summer, so the sun must be bright and strong.

③ If the sunlight is not strong, the rosin may seep out, but it is unlikely to fall off in large drops!

Ask the students to look for several places in the article that describe the sun, how they are written, and which words are reflected in the changes in temperature.

There are three places

①The sun shines warmly,

②The sun is shining brightly,

③The midday sun shines brightly on the entire forest.

Changes in temperature can be seen through "warm", "fiery" and "hot".

There are four conditions for turning rosin balls into fossils:

1. Long time

2. Changes in the earth’s crust

3. The water flooded the forest and the trees rotted.

4. The rosin balls were submerged.

In the formation process and conditions of amber, what reasonable speculations did the author make based on the shape of amber?

(Speculation based on the location and shape of the amber found)

Speculation 1: According to the fact that amber is formed from pine resin - the place where amber was found was once land and there was a large pine forest.

Speculation 2: Based on the two small things (flies and spiders) lying in the transparent amber - there were flies and spiders 10,000 years ago.

Speculation 3: Based on the two bugs staying together - the process of wrapping the bugs in rosin.

Speculation 4: According to the black rings surrounding the legs of the fly and the spider, these two insects struggled before being suffocated.

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"Strange Amber" PPT courseware 8:

"Strange Amber" PPT Courseware 8 Introduction to Amber Amber is the fossil of ancient pine resin and can be used as decoration. Plant debris and various ancient small animals are often wrapped in the plant fat of fossils such as amber. In the honey-like color, a fly can often be found...

"Strange Amber" PPT courseware 6:

"Strange Amber" PPT Courseware 6 Learning Objectives: 1. How was this piece of amber formed? 2. Why is this piece of amber strange? What is the value of this piece of amber? Think about it: What is the content of the text? (Read the text freely and use your own words to summarize...

"Strange Amber" PPT courseware 5:

"Strange Amber" PPT Courseware 5 Introduction to Amber Amber is the fossil of ancient pine resin and can be used as decoration. Plant debris and various ancient small animals are often wrapped in the plant fat of fossils such as amber. In the honey-like color, a fly can often be found...

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Update Time: 2024-09-06

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