[音频]Ten years after his paper on the special theory of relativity, Albert Einsteinfinished work on another theory. It described what he called his “GeneralTheory of Relativity.” It 1. _______his special theory to include themotion of objects that are gaining speed. This theory offered new ideas aboutgravity and the close 2. ______between matter and energy. It builton the ideas about mass he had 3. ______in 1905.Einsteinsaid that an object loses 4. ______when it gives off light, which is a kindof energy. He believed that matter and energy were different forms of the samething. That was the basis of his famous 5. _______statement E=MC2(Energy equals mass times the speed of light squared). This 6. ______orformula explained that a great amount of energy could come from a small pieceof matter. It explained how the sun could give off heat and light for millionsof years. This formula also led to the 7. _______of atomic energy.Inhis general theory of relativity, Einstein said that gravity, like time, is notalways the same. Gravity changes as 8. _______speed up or slow down. Healso said that gravity from very large objects, such as stars, could turn thepath of light waves that passed nearby. This seemed 9. ________. But in1919, British scientists confirmed his theory when the sun was completely 10. ________during a solar eclipse. Albert Einstein 11. ________ became famous around theworld.