歌曲 | The Saint Louis University weather balloon launch team |
歌手 | 英语听力 |
专辑 | VOA慢速英语:教育报道 |
下载 | Image LRC TXT |
[00:00.10] | From VOA Learning English, |
[00:02.16] | this is the Education Report. |
[00:05.34] | Students at Saint Louis University |
[00:07.58] | are launching weather balloons |
[00:09.52] | into the sky above St. Louis, Missouri. |
[00:12.91] | The United States space agency NASA |
[00:16.14] | is paying for this activity. |
[00:18.48] | It's a part of a study to improve |
[00:20.92] | our understanding of air pollution and climate. |
[00:24.80][VOICE] | |
[00:47.05] | A group of students surround a laptop computer |
[00:52.67] | and a radio receiver outside the Saint Louis Science Center. |
[00:57.85] | They're getting ready to take part |
[01:00.14] | in a NASA project to measure ozone. |
[01:03.42] | The students hear the sound of information. |
[01:07.06] | Inside container made of Styrofoam material |
[01:10.89] | are small instruments, they measure direction, |
[01:14.48] | temperature, humidity, air pressure and ozone. |
[01:19.86] | The students tested all the instruments. |
[01:22.89] | When they are certain everything is operating correctly, |
[01:26.58] | they attach the container to a weather ballon. |
[01:30.06] | The ballon will carry it into the atmosphere |
[01:33.59] | three times higher than jets airplane. |
[01:36.69] | But first, the students need to fill the ballon |
[01:40.37] | with helium gas, so it can rise. |
[01:43.51] | They need a lot of helium. |
[01:46.83] | Fully blown up, |
[01:48.41] | the ballon will be 2 to 3 meters in diameter. |
[01:52.84] | A voice announces the launch time. |
[01:55.73] | "This is Gary Morris with the Saint Louis University |
[01:58.61] | weather balloon launch team at the St. Louis planetarium. |
[02:01.50] | We're five minutes from a weather balloon launch." |
[02:03.49] | Gary Morris is a professor at Valparaiso University in Indiana. |
[02:09.32] | He is the lead trainer for the nationwide study. |
[02:13.16] | The professor says NASA wants more information on ozone |
[02:18.29] | because * affects our atmosphere ― both good and bad. |
[02:23.08] | High up in what is called the stratosphere, |
[02:26.47] | the ozone layer keeps harmful ultraviolet radiation |
[02:30.80] | from reaching the earth. |
[02:32.35] | But near the ground, emissions from cars and petrochemical plants |
[02:37.78] | form ozone pollution and smog, |
[02:40.82] | the unhealthy air condition that affects breathing. |
[02:44.50] | Jack Fishman leds the ozone study at Saint Louis University. |
[02:50.18] | He says new requirements that decrease pollution |
[02:53.91] | have lowered ozone levels in American cities, |
[02:57.80] | but he notes that pollution in remote areas continues to increase. |
[03:03.17] | He blames industrial activity in eastern Asia for that pollution. |
[03:08.75] | Mr Fishman says polluted air is being blown across |
[03:12.94] | the Pacific by currents in the upper atmosphere. |
[03:17.08] | He says ozone pollution has slown |
[03:20.12] | the growth of farm crops and forests. |
[03:23.42] | And now, at the Saint Louis Science Center, |
[03:27.30] | is time for the balloon launch. |
[03:29.24] | OK, comes a voice, ready... |
[03:31.78] | "Five, four, three, two, one, lift-off! Alright!" |
[03:41.29][VOICE] | |
[03:50.05] | And that's the VOA Education Report. |
[03:54.39] | I'm Jerilyn Watson. |
[00:00.10] | From VOA Learning English, |
[00:02.16] | this is the Education Report. |
[00:05.34] | Students at Saint Louis University |
[00:07.58] | are launching weather balloons |
[00:09.52] | into the sky above St. Louis, Missouri. |
[00:12.91] | The United States space agency NASA |
[00:16.14] | is paying for this activity. |
[00:18.48] | It' s a part of a study to improve |
[00:20.92] | our understanding of air pollution and climate. |
[00:24.80][VOICE] | |
[00:47.05] | A group of students surround a laptop computer |
[00:52.67] | and a radio receiver outside the Saint Louis Science Center. |
[00:57.85] | They' re getting ready to take part |
[01:00.14] | in a NASA project to measure ozone. |
[01:03.42] | The students hear the sound of information. |
[01:07.06] | Inside container made of Styrofoam material |
[01:10.89] | are small instruments, they measure direction, |
[01:14.48] | temperature, humidity, air pressure and ozone. |
[01:19.86] | The students tested all the instruments. |
[01:22.89] | When they are certain everything is operating correctly, |
[01:26.58] | they attach the container to a weather ballon. |
[01:30.06] | The ballon will carry it into the atmosphere |
[01:33.59] | three times higher than jets airplane. |
[01:36.69] | But first, the students need to fill the ballon |
[01:40.37] | with helium gas, so it can rise. |
[01:43.51] | They need a lot of helium. |
[01:46.83] | Fully blown up, |
[01:48.41] | the ballon will be 2 to 3 meters in diameter. |
[01:52.84] | A voice announces the launch time. |
[01:55.73] | " This is Gary Morris with the Saint Louis University |
[01:58.61] | weather balloon launch team at the St. Louis planetarium. |
[02:01.50] | We' re five minutes from a weather balloon launch." |
[02:03.49] | Gary Morris is a professor at Valparaiso University in Indiana. |
[02:09.32] | He is the lead trainer for the nationwide study. |
[02:13.16] | The professor says NASA wants more information on ozone |
[02:18.29] | because affects our atmosphere both good and bad. |
[02:23.08] | High up in what is called the stratosphere, |
[02:26.47] | the ozone layer keeps harmful ultraviolet radiation |
[02:30.80] | from reaching the earth. |
[02:32.35] | But near the ground, emissions from cars and petrochemical plants |
[02:37.78] | form ozone pollution and smog, |
[02:40.82] | the unhealthy air condition that affects breathing. |
[02:44.50] | Jack Fishman leds the ozone study at Saint Louis University. |
[02:50.18] | He says new requirements that decrease pollution |
[02:53.91] | have lowered ozone levels in American cities, |
[02:57.80] | but he notes that pollution in remote areas continues to increase. |
[03:03.17] | He blames industrial activity in eastern Asia for that pollution. |
[03:08.75] | Mr Fishman says polluted air is being blown across |
[03:12.94] | the Pacific by currents in the upper atmosphere. |
[03:17.08] | He says ozone pollution has slown |
[03:20.12] | the growth of farm crops and forests. |
[03:23.42] | And now, at the Saint Louis Science Center, |
[03:27.30] | is time for the balloon launch. |
[03:29.24] | OK, comes a voice, ready... |
[03:31.78] | " Five, four, three, two, one, liftoff! Alright!" |
[03:41.29][VOICE] | |
[03:50.05] | And that' s the VOA Education Report. |
[03:54.39] | I' m Jerilyn Watson. |
[00:00.10] | From VOA Learning English, |
[00:02.16] | this is the Education Report. |
[00:05.34] | Students at Saint Louis University |
[00:07.58] | are launching weather balloons |
[00:09.52] | into the sky above St. Louis, Missouri. |
[00:12.91] | The United States space agency NASA |
[00:16.14] | is paying for this activity. |
[00:18.48] | It' s a part of a study to improve |
[00:20.92] | our understanding of air pollution and climate. |
[00:24.80][VOICE] | |
[00:47.05] | A group of students surround a laptop computer |
[00:52.67] | and a radio receiver outside the Saint Louis Science Center. |
[00:57.85] | They' re getting ready to take part |
[01:00.14] | in a NASA project to measure ozone. |
[01:03.42] | The students hear the sound of information. |
[01:07.06] | Inside container made of Styrofoam material |
[01:10.89] | are small instruments, they measure direction, |
[01:14.48] | temperature, humidity, air pressure and ozone. |
[01:19.86] | The students tested all the instruments. |
[01:22.89] | When they are certain everything is operating correctly, |
[01:26.58] | they attach the container to a weather ballon. |
[01:30.06] | The ballon will carry it into the atmosphere |
[01:33.59] | three times higher than jets airplane. |
[01:36.69] | But first, the students need to fill the ballon |
[01:40.37] | with helium gas, so it can rise. |
[01:43.51] | They need a lot of helium. |
[01:46.83] | Fully blown up, |
[01:48.41] | the ballon will be 2 to 3 meters in diameter. |
[01:52.84] | A voice announces the launch time. |
[01:55.73] | " This is Gary Morris with the Saint Louis University |
[01:58.61] | weather balloon launch team at the St. Louis planetarium. |
[02:01.50] | We' re five minutes from a weather balloon launch." |
[02:03.49] | Gary Morris is a professor at Valparaiso University in Indiana. |
[02:09.32] | He is the lead trainer for the nationwide study. |
[02:13.16] | The professor says NASA wants more information on ozone |
[02:18.29] | because affects our atmosphere both good and bad. |
[02:23.08] | High up in what is called the stratosphere, |
[02:26.47] | the ozone layer keeps harmful ultraviolet radiation |
[02:30.80] | from reaching the earth. |
[02:32.35] | But near the ground, emissions from cars and petrochemical plants |
[02:37.78] | form ozone pollution and smog, |
[02:40.82] | the unhealthy air condition that affects breathing. |
[02:44.50] | Jack Fishman leds the ozone study at Saint Louis University. |
[02:50.18] | He says new requirements that decrease pollution |
[02:53.91] | have lowered ozone levels in American cities, |
[02:57.80] | but he notes that pollution in remote areas continues to increase. |
[03:03.17] | He blames industrial activity in eastern Asia for that pollution. |
[03:08.75] | Mr Fishman says polluted air is being blown across |
[03:12.94] | the Pacific by currents in the upper atmosphere. |
[03:17.08] | He says ozone pollution has slown |
[03:20.12] | the growth of farm crops and forests. |
[03:23.42] | And now, at the Saint Louis Science Center, |
[03:27.30] | is time for the balloon launch. |
[03:29.24] | OK, comes a voice, ready... |
[03:31.78] | " Five, four, three, two, one, liftoff! Alright!" |
[03:41.29][VOICE] | |
[03:50.05] | And that' s the VOA Education Report. |
[03:54.39] | I' m Jerilyn Watson. |