Unit 1? Science and Technology 一? 科學與技術 Lesson One Humans and Chimps - Whatis the Difference? - Rice Genes Mapped (1) Lesson Two Cloning Trees? (5) Lesson Three Fuel Cell Cars? (9) Lesson Four Stem Cell Research? (13) Lesson Five Hubbles New Camera? (17) Lesson Six Testing the Wright Brothers Flying Machine? (20) Unit 2? Health and Medicine 二? 健康與醫(yī)學 Lesson One Medical Education? (23) Lesson Two Medical Transplants? (25) Lesson Three Babies and Intelligence? (28) Lesson Four Diseases Spread by Mosquitoes? (31) Lesson Five Heat and Health? (33) Lesson Six Stress and Illness? (37) Lesson Seven Multiple Sclerosis? (39) Lesson Eight Mad Cow Disease? (42) Lesson Nine Diabetes? (45) Lesson Ten Headaches? (48) Lesson Eleven Malaria? (51) Lesson Twelve Tuberculosis? (54) Lesson Thirteen Arthritis? (55) Lesson Fourteen Aspirin? (58) Lesson Fifteen Cancer? (60) Lesson Sixteen Heart Devices? (63) Unit 3? Environment and Nature 三? 自然與環(huán)境 Lesson One The Mississippi River? (67) Lesson Two The Hudson River? (70) Lesson Three Finding Atlantis? (74) Lesson Four National Geographic Explorers? (78) Lesson Five Shadow Wolves? (82) Lesson Six Sharks? (85) Lesson Seven Rio Grande? (88) Lesson Eight Population and the Environment? (91) Unit 4? Astronomy and Meteorology 四? 天文與氣象 Lesson One Project Mercury Ⅰ? (96) Lesson Two Project Mercury Ⅱ? (99) Lesson Three Space in 2001? (101) Lesson Four Spacesuit History? (104) Lesson Five Space Digest? (106) Lesson Six Mars? (109) Lesson Seven Bessie Coleman? (112) Lesson Eight Edwin Hubble? (116) Lesson Nine Tuskegee Airmen? (119) Lesson Ten Percival Lowell? (121) Lesson Eleven Life on the International Space Station? (124) Lesson Twelve Increasing Hubbles Power? (127) Lesson Thirteen Air and Space Museum Birthday? (129) Unit 5 City and Architecture 五? 城市與建筑 Lesson One Rethinking Skyscrapers? (133) Lesson Two Walt Disney? (135) Lesson Three Chicago? (138) Lesson Four Grand Canyon? (140) Lesson Five Indiana Dunes? (143) Lesson Six Washington Monument? (145) Lesson Seven Visiting Washington? (148) Lesson Eight Carolina Lighthouses? (151) Lesson Nine Memphis, Tennessee? (154) Lesson Ten National Highway System? (158) Lesson Eleven Preservation Hall Jazz? (160) Lesson Twelve Tenement Museum? (163) Lesson Thirteen B&O Railroad Museum? (166) Lesson Fourteen National Museum of the American Indian? (169) Unit 6? History 六? 歷史 Lesson One New Era1920s? Ⅰ? (172) Lesson Two New Era1920s? Ⅱ? (176) Lesson Three 1920sBlack History? (180) Lesson Four National Museum of American History? (184) Lesson Five 1920sConservatism? (188) Lesson Six Synopsis1920-1940? (191) Lesson Seven The Lost Colony? (194) Lesson Eight Silk Road Folklife Festival? (198) Lesson Nine Jamestown? (201) Lesson Ten Calvin Coolidge? (203) Lesson Eleven Cochise? (206) Unit 7? Sports 七? 體育 Lesson One Winter Olympic Games? (210) Lesson Two US.World Cup Team? (213) Lesson Three Women in Sports? (215) Lesson Four Soaring? (219) Lesson Five Babe Ruth? (221) Unit 8? War 八? 戰(zhàn)爭 Lesson One Pearl Harbor to Europe? (225) Lesson Two Road to Pearl Harbor? (230) Lesson Three The War in the Pacific? (234) Lesson Four The War in Europe? Ⅰ? (239) Lesson Five The War in Europe? Ⅱ? (244) Lesson Six World War Two - Home Front? (249) Part Two? Listening Material 第二部分? 聽力全文 Unit 1? Science and Technology 一? 科學與技術 (255) Unit 2? Health and Medicine 二? 健康與醫(yī)學 (282) Unit 3? Environment and Nature 三? 自然與環(huán)境 (351) Unit 4? Astronomy and Meteorology 四? 天文與氣象 (387) Unit 5 City and Architecture 五? 城市與建筑 (445) Unit 6? History 六? 歷史 (505) Unit 7? Sports 七? 體育 (556) Unit 8? War 八? 戰(zhàn)爭 (578)
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