新概念优美背诵短文50篇 Unit14:A Rare Fossil Record14 A Rare Fossil RecordThe preservation of embryos and juveniles is a rate occurrence in the fossil record. The tiny, delicate skeletons are usually scattered by scavengers or destroyed by weathering before they can be fossilized. Ichthyosaurs had a higher cha

新东方优美背诵短文50篇 Unit25: Movie Music25. Movie MusicAccustomed though we are to speaking of the films made before 1927 as “silent”, the film has never been, in the full sense of the word, silent. From the very beginning, music was regarded as an indispensable accompaniment when the Lumiere films were sho

Diogenes was a famous Greek philosopher of the fourth century B.C., who established the philosophy of cynicism.He often walked about in the daytime holding a lighted lantern, peering around as if he were looking for something.When questioned about his odd behavior, he would reply, "I am searching fo

新东方优美背诵短文50篇 Unit40:Cohesion-tension Theory40 Cohesion-tension TheoryAtmospheric pressure can support a column of water up to 10 meters high. But plants can move water much higher the sequoia tree can pump water to its very top more than 100 meters above the ground. Until the end of the nineteenth c

Good morning. This week, I appeared before Congress to report on the state of our union. I asked members of the House and Senate from both sides of the aisle to join me in confronting the great challenges before us, so we can build a future of hope and opportunity for all Americans.Two key challenge

Good morning. One of my most solemn experiences as President is visiting men and women recovering from wounds they suffered in defense of our country. Spending time with these wounded warriors is also inspiring, because so many of them bring the same courage they showed on the battlefield to their b

THE PRESIDENT: Good morning. For many Americans, the new year began with a resolution to live a better and healthier life. Whatever goals you have set for yourself this year, one goal we can all share is reforming our Nation's health care system.Americans are fortunate to have the best health care s

Good morning. This Monday, our Nation will mark the 5th anniversary of the attacks of September the 11th, 2001. On this solemn occasion, Americans will observe a day of prayer and remembrance, and Laura and I will travel to New York City, Pennsylvania, and the Pentagon to take part in memorial cerem