急需一篇关于手机或者旅游或者世界最伟大的发明的大学英语演讲稿

急需一篇关于手机或者旅游或者世界最伟大的发明的大学英语演讲稿
急需一篇关于手机或者旅游或者世界最伟大的发明的大学英语演讲稿

急需一篇关于手机或者旅游或者世界最伟大的发明的大学英语演讲稿
关于旅游的:
The Tour began with a prologue in Strasbourg,on the French-German border,and ended Sunday July 23 in Paris.The distance of the course (run counterclockwise around France) was 3657 km (2272 miles).The race was the third fastest in average speed.Along the way,the cyclists passed through six different countries including France,The Netherlands (a stop at Valkenburg in Stage 3),Belgium (at Huy,Stages 3 and 4),Luxembourg (at Esch-sur-Alzette,Stages 2 and 3),Germany (though not stopping there,Stage 1) and Spain (Pla-de-Beret,Stage 11).The presentation of the course was made by the new director of Le Tour,Christian Prudhomme.For the first time since the 1999 edition,there was no team time trial.
The event,as with some of the Tours of the late 1990s,was marred by doping scandals.Prior to the tour,numerous riders - including the two favourites Jan Ullrich and Ivan Basso - were expelled from the tour due to their link with the Operación Puerto doping case.After the tour,the winner Floyd Landis was found to have failed a drugs test after stage 17; runner up Óscar Pereiro Sio currently also claims the title.As of October 2006,Landis is still officially considered the winner,whilst he appeals against the failed test.

Ben Franklin:
Ben Franklin was most famous for the invention of the Franklin stove and also famous for his discoveries about lightning and electricity.
Ben conducted an experiment with electr...

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Ben Franklin:
Ben Franklin was most famous for the invention of the Franklin stove and also famous for his discoveries about lightning and electricity.
Ben conducted an experiment with electricity and proved that lightning is electricity. The experiment used a key, a kite, a wire, and jar full of water. The electricity hit the kite and it traveled to the key that was touching the wire which was in the jars.
Ben experimented with the electricity and sent a letter to a friend in London telling him about the night with the jars. The letter didn't get there and was picked up by a man and the word spread that Ben had found out how to catch electricity. Countries all over the world were using Ben's experiment.
Ben was very cold one morning and asked his wife, "Why is it so cold in here? Isn't our fireplace on?" She answered, "Yes it is on but it's just not powerful enough to make the whole room warm." Ben had an idea to make the whole house warm. It would be called the Franklin stove. It gave more heat and used less fuel than any other stove. As he built it with helpers and workers, one of them said, "You know Ben you can make a lot of money off of this invention." In return Ben said that he did not want the money. He just wanted to help citizens. Later a man changed the stove and improved it, making him very rich.
Marie Curie:
Marie Curie had a radiant life in her discovery of radium. She brought forth an important discovery.
Manya Sklodowska was born in 1867 in Poland. She, being the youngest of six, had a hard childhood when her mother died of tuberculosis. Manya and her sister Bronya grew up together. With a little help, Bronya and Manya finished their education.
She married a French scientist named Pierre Curie and changed her name to Marie Curie. Together the two scientists made a great discovery before tragedy happened.
Marie and Pierre, in their little wooden shed in France, isolated something called pitch blend. They found one element that would be the key to their success. This element is called radium. Now they wanted to try to take a bit of radium out of the pitch blend to study on its own. To complete the task of isolation, Marie stirred pitch blend in a large pot while Pierre analyzed the element.
In 1902 Marie and Pierre decided to go to the shed, not to work but just to check to see if the isolation was going okay. They reached the shed at the perfect time. On arrival they saw a beautiful blue light shining through the door...
RADIUM!
Radium was used some years ago and now. It was used for a variety of purposes; treating cancer, an ingredient for fluorescent paint used for dials on things like watches, now radium has been replaced for better, safer medical uses.
That goes to show you that two people, such as yourself and a friend, could work for a few years, and discover something amazing. Try your luck!

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