选择性必修四外研版（2019）《Unit 6 Space and beyond》Section A Starting out & Understanding ideas优质课教学ppt课件

选择性必修四外研版（2019）《Unit 6 Space and beyond》Section A Starting out & Understanding ideas优质课教学ppt课件

素养导航

主题语境——人与自然　太空探索

China Launches 3 Satellites on 2 Rockets in 3 Days

China launched① three satellites into space during two missions from different space centres over three days,according to reports from the country’s space programme and state media.

The first launch soared into space from the Taiyuan Satellite Launch Centre in northern China’s Shanxi Province.Two satellites from the China Academy of Space Technology flew into orbit on a Long March 4B rocket at 11:10 am local time Friday,July 3.

One satellite,identified② as Gaofen by SpaceNews,was billed in Chinese media as a remote sensing satellite for civilian use.The satellite’s resolution is less than a metre and it will operate in an orbit to place the sun at a consistent angle on the surface,called a sun-synchronous orbit.This orbit makes it easier to compare pictures between satellite passes.

“The satellite can provide high-precision remote-sensing image data for several industries including surveying and mapping,natural resources,emergency management③,agriculture,ecological environment,residential construction④ and forestry,” CASC said in a statement.

“The rocket also carried a satellite to popularize space science for teenagers,”CCTV said,“through doing science experiments such as transmitting⑤ images and voice data.”The satellite is called Xibaipo,sharing a name with the region that once hosted the site of the Central Committee of the Community Party of China in the late 1940s.

“Two days after these satellites flew into space,China successfully performed another launch from the Jiuquan Satellite Launch Centre in northwest China,”CCTV and CASC said.

This launch occurred at 7:44 am Beijing time on Sunday,July 5.This satellite is the second of the Shiyan-6 series and will be used to study the environment of space and to do “related technology experiments”,whose nature was not disclosed.?

China had a busy late 2019 and early 2020,with launches frequently occurring days or hours apart—sometimes at the same space centre.While the pace slowed in the spring amid the novel coronavirus pandemic,China has carefully resumed its work while implementing⑥ physical distancing measures.

词海拾贝

①launch v.发射

②identify v.确认

③management n.管理

④construction n.建设

⑤transmit v.传送

⑥implement v.履行

典句欣赏

This satellite is the second of the Shiyan-6 series and will be used to study the environment of space and to do “related technology experiments”,whose nature was not disclosed.