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Part One 听辨练习 A. Listen, circle the corresponding number if you hear???????or ??????in the word . 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. B. Write down the word you hear on the tape, then fill in the b

发表于:2018-11-27 / 阅读(171) / 评论(0) 分类 4+1听力口语MP3

Lifelines of the Desert The Nasca desert in Southern Peru is a vast wasteland that stretches from the Andean 1)foothills to the Pacific Ocean. In 1926 came the first commercial flights over the area a

发表于:2018-11-28 / 阅读(128) / 评论(0) 分类 疯狂英语2004年

Amid the spectacular ruins of the new world, the story of Atlantis would now take a different turn, becoming the focus for one man's bold quest to discover the truth about his country and himself. 30

发表于:2018-12-07 / 阅读(40) / 评论(0) 分类 遗失的大陆

63 火星的神秘运动 DATE=6-27-01 TITLE=SCIENCE REPORT - The Motion of Mars BYLINE=Mario Ritter (Start at 59

发表于:2019-01-30 / 阅读(63) / 评论(0) 分类 科技之光

HARI SREENIVASAN: Returning now to the death of Nobel Prize-winning mathematician John Nash. I'm joined by Nash's colleague and friend Robbert Dijkgraaf, director of the Institute for Advanced Study in Princeton, New Jersey. So, first off, my condole

发表于:2019-02-17 / 阅读(39) / 评论(0) 分类 PBS访谈社会系列

The significant inscription found on an old key---If I rest, I rust---would be an excellent motto for those who are afflicted with the slightest bit of idleness. Even the most industrious person might adopt it with advantage to serve as a reminder th

发表于:2019-02-18 / 阅读(36) / 评论(0) 分类 阅读空间