Continental drift(speech)

2022-12-14  本文已影响0人  River本大魁

My name is Alfred Wegner.Today,I’ll give you guys about a interesting theory:The Continental drift.

Does anybody have seen the world map before?Then have you ever mentioned that the edge of South America and Africa could be skillfully knit together? Yeah,definitely.So why? What makes them like this? To prove it,I have searched for some evidence.

I thought every continent should be together at the first time,And it was called “Pangaea”.This word came from Ancient Greek language.

First is what I say at the first beginning:The apparent fit of the continent.Continents were just like puzzle,broke from one another and never Syntaxes.The borders of America and Africa can be skillfully combined.

Second I found evidence of similar organism on both sides of the Atlantic.From worms to ferns to large animals.Also Fossils showed that a rare ancient reptile.Mesosaurus existed only in South America and in southern Africa.

Third was there were some geological similarities too.For example certain mountain ranges in North America and European seemed Like an extension of one another.They must have been the integrated mountains connected together.

Fourth was the paleoclimate data.There is many coals existing in the frigid zone.This means there used to be animals here.Today the continent had drift away from equator,But it left the evidence.

So Obviously,I have at least four evidence to prove every continent today was broken from one supercontinent.

I publicized my theory to the scientific world,But they all disagreed with me!I can’t understand why!Maybe because I have no conclusion about How continents move.I did not gave up.I want to found more evidence to show them.But unluckily, I was dead when I was searching evidence around the Arctic Ocean.Other scientists in that time was not convinced by my theory totally.What pity!

After I died for some years,My soul told me that In 1960 the scientific world proved that the power made Continental move was the lava underneath the states.Yes,they has developed the theory of plate tectonics which revolutionized people’s understanding of movement in earth’s crust.The states includes land and seabed, It was floating on the lave which is molten rock.They called it asthenosphere.

I was appreciated!At last my theory became dredible.

So what can we learn from Wegner?I think is his spirit of inquiry as a scientist.He left few pities but Though He used his action showing his creative and perseverance.He was curious on the thing about nature and dare to proposed his idea.After he get detail from library,He had never stopped founding evidence.This showed his persistent.He stick to his position cause the confidence in his heart.I think it's worth learning for all of us.

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