美国英语听力80篇3 Lesson46
[00:08.05]Igor Sikorsky left Russia at the start of the revolution in 1917. [00:15.54]He stayed for a while in Britain and France. [00:19.54]Then he went to the United States. [00:22.62]He arrived with little money and no real chances for work. [00:2
美国英语听力80篇3 Lesson47
[00:08.39]A North American Major League baseball record was established in 1939. [00:15.46]The man who set it played in 2,130 games without missing one. [00:22.83]In 1995, the record was broken by Cal Ripken of the Baltimore Orioles. [00:30.35]But th
美国英语听力80篇3 Lesson48
[00:10.06]Gehrig continued to improve as a player. [00:14.05]By 1924, pitchers for opposing teams were having bad dreams about Lou Gchrig and Babe Ruth. [00:23.04]Ruth hit sixty home runs that year. [00:26.36]Gchrig hit forty seven and won the Americ
美国英语听力80篇3 Lesson49
[00:06.45]Her name at birth was Norma Jean Baker. [00:10.92]Her life as a child was like a bad dream. [00:14.68]She lived with a number of different people, and often was mistreated. [00:19.88]At age sixteen Norma Jean married a sailor. [00:24.69]But
美国英语听力80篇3 Lesson50
[00:04.96]Marilyn did not stop struggling. [00:09.01]She next won a small part in a movie calledLove Happy. [00:13.58]It was a comedy starring the famous Marx brothers. [00:17.58]Critics said it was not one of their better efforts. [00:21.97]Marilyn,
美国英语听力80篇3 Lesson51
[00:05.20]Nikola Tesla developed the alternating current power system that provides electricity in the United States. [00:14.42]Many of his other discoveries led to electronic inventions for which other scientists were honored. [00:22.75]Mister Tesla
美国英语听力80篇3 Lesson52
[00:07.94]The girl who became known as Phillis Wheatley was born about 1753 in Senegal, Africa. [00:22.86]She was kidnapped and brought to the New England colonies in North America on a ship that carried slaves. [00:31.40]The ship's name was Phillis.
美国英语听力80篇3 Lesson53
[00:05.96]Philtis Wheattey's first major work was An Elegiac Poem on the Death of the Celebrated Divine. [00:14.52]It waspublished in 1770. [00:17.53]Phillis wrote the long poem to honor a famous clergyman who had died. [00:22.96]Phillis wrote mostly
美国英语听力80篇3 Lesson54
[00:04.91]54) Anti-sense Technology [00:10.55]Research scientists have reported success in using an experimental method [00:17.97]called anti-sense technology to treat people with cancer. [00:23.41]For years, researchers have tested anti-sense techno
美国英语听力80篇3 Lesson55
[00:07.05]The World Health Organization says about 600,000-- 300 babies got H-I-V, [00:15.39]the virus that causes AIDS, from their mothers in 1998. [00:20.48]It says 90% of those babies were in African countries south of the Sahara Desert. [00:28.71
美国英语听力80篇3 Lesson56
[00:05.75]Last month, scientists announced that they recorded the first detailed maps [00:13.06]of the development of a child's brain between the ages of three and fifteen. [00:19.98]Scientists at the University of California at Los Angeles School of
美国英语听力80篇3 Lesson57
[00:05.12]American researchers say a new, low-fat substitute for butter could reduce the risk of heart attack and stroke for millions of people. [00:17.76]The new food product is made from vegetable oil with added substances called sterol esters. [00
美国英语听力80篇3 Lesson58
[00:06.37]The United States has a new official clock. [00:10.95]The clock began operating late last year in the American city of Boulder,Colorado. [00:18.39]Experts say the new clock is so exact that it will neither gain nor lose so much as one secon
美国英语听力80篇3 Lesson59
[00:05.49]Physical changes, such as gray hair and small lines on the face, appear as we grow older. [00:15.78]Now, American scientists say such changes may result partly from changes in our genetic material. [00:24.24]They say these genetic mutations
美国英语听力80篇3 Lesson60
[00:05.77]A private American company says it has identified all the chemical pieces in the genetic material that shapes human life. [00:17.82]Celera Genomics Group says it has identified and named all the genetic parts of the material inside the nucl
