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高二教案 869期(6版)
发布时间:2022-05-09

本期配套教案共2页:  1  2

2021-2022学年度高二第39期总第869期
Protecting from above (P6)
北京市和平街第一中学  甘露
Warming Up
Do you know the movie Asteroid vs Earth? 
    
A deadly asteroid (小行星) heading toward the Earth is a common plot in sci-fi movies, but is this a risk we should be worried about in real life?
Read and explore
Read the article quickly and find the main idea.
What is it mainly about?
A. China will start to build Earth and space-based monitoring and warning systems to  detect near-Earth asteroids.  
B. NASA has its own technology to deflect incoming asteroids.
C. A growing number of space agencies are now taking steps to defend against near-Earth asteroids.
Key: C

Read the article and draw a thinking map to show how space agencies are taking steps to defend against NEAs.
 
Critical thinking
What do you think of “ Seeking to communicate with space agencies around the world is due to the global character of the dangers we all face due to asteroids”?
  As we all know, the Earth is home to all of humanity. If a deadly asteroid heads toward the Earth, it would be a disaster for all people over the world. Therefore, communication and cooperation around the world is crucial and necessary. Global space agencies are conducting research and improving technology to promote the well-being of all humanity. Every country needs to play their parts to safeguard Earth and all humanity. 
Language study
1. The systems will categorize incoming NEAs depending on the risks they pose, with software used to simulate the potential damage.
译文:这个系统要对接近的行星进行风险分类,用软件来模拟潜在的破坏。
(1) depending on为现在分词作方式状语,意为“凭借、依靠”
eg. We had no difficulty in finding his house, depending on the map.  
依靠地图,我们不费劲儿就找到他的住所了。     
(2) with software used to simulate the potential damage 
此处with sth done复合结构中sth与动作之间是被动关系
eg. With his homework finished, he began to play the piano.    
作业做完了,他开始弹钢琴。                 

2. DART will slam into Dimorphos, with the impact estimated to change the speed at which it orbits its space neighbor, according to NASA’s website.  
译文:根据美国宇航局网站报道,DART将猛烈撞击Dimporphos,预计将改变Dimorphos围绕它的太空邻居旋转的速度。
the speed at which it orbits its space neighbor...
本句为定语从句,先行词为speed, 从句为it orbits its space neighbor,at the speed是固定搭配,故用at which引导。          
eg. The speed at which cities are growing in developing countries is that alarming.
一些发展中国家城市发展的速度是十分惊人的。

本期配套教案共2页:  1  2

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