Who knows: The Arctic expedition is unfortunate-Wei Gena was buried in the snowfield.

-Buried in snowy Wei Gena.

1930 In April, indomitable Wei Gena bid farewell to his wife and led an expedition to board a ship bound for Greenland. He came here to re-measure the longitude of Greenland in order to get strong evidence of continental drift theory from geodesy. They got off to a smooth start and met with numerous difficulties after arriving at the Greenland coastal base. At Esmit base in central Greenland, two explorers were going to spend the night here for meteorological investigation and demonstration, but snowstorm and snow blocked the transportation of materials. On September 2 1, Wei Gena decided to deliver supplies from the west coast base to Esme base in person. A group 15 people trudged by dog sledding in the snowstorm 100 kilometers. At this time, because the temperature is as low as -65℃, most people have lost their courage and are unwilling to move on. But Wei Gena made up his mind, so he and his two followers walked 100 kilometers and finally arrived at Esme base. At this point, a companion's foot has been severely frostbitten. If he stays at the base, providing food will be more difficult and may even be interrupted. In this case, Wei Gena decided to risk his life to return to the west coast base. 1 65438+1October1day, Wei Gena hurried to celebrate his 50th birthday at Esme base and set off on his way. He and a companion took two dogs to pull sledges and headed for the west coast base. 165438+1On October 2nd, there was heavy snow in Greenland and the temperature was as low as -40℃. They are struggling in such a harsh environment, and every step has to pay a huge price.

Finally, due to months of extreme fatigue, Wei Gena suffered from heart failure, fell in the ice and snow, and never got up again. ...

However, truth will not be buried by dust forever. Wei Gena's theory of continental drift has been developed, supplemented and perfected through the study of paleomagnetism by British Blair and others in 1950s, the theory of submarine expansion put forward by American Hesditz in 1962, and the theory of plate tectonics put forward by American Morgan and British Mackenzie and Parker in 1967, which proved to be "a fascinating and gripping description of our earth history".

Although ice and snow can kill Wei Gena in his prime of life, it also caused another great tragedy in the history of science, leaving eternal regret for geological research, but it also left Wei Gena's spirit of constantly exploring for science and truth without fear of sacrifice.

1. Divide this article into two layers with "//"and explain the basis of division.

A: The first two paragraphs are one floor, and the last two paragraphs are one floor. Basis: Syria-discussion (or before sacrifice-after sacrifice)

2. Talking about the difficulties encountered in Wei Gena's Arctic scientific research.

A: The weather was cold, and I was caught in a snowstorm. Because of feeding difficulties, I had to run back and forth, and I was extremely tired.

3. Understand the different meanings of the two "eternity" in the last paragraph.

A: The first "eternity" means that Wei Gena's sacrifice makes the study of continental drift a pity; The second "eternity" means that Wei Gena's spirit of constant exploration and fear of sacrifice will last forever.

4. Delete part of the text in the last paragraph and form the most concise sentence to summarize the full text (no more than 35 words).

A: The ice and snow killed Wei Gena, leaving him with the spirit of constantly exploring science and truth and not being afraid of sacrifice.