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高一教案 第844期(6版)
发布时间:2021-10-09

本期配套教案共2页:  1  2

2021-22学年度第7期总第844期(6版) 
Smart with starch (Page 6)
吉林毓文中学 赵传彦
I. Lead-in 
Carbon dioxide (CO2) : the vast majority of greenhouse gas emissions
Starch (淀粉) :the main component of flour, rice and corn among others
Can we create starch using carbon dioxide? wild? possible? crazy? creative?

II. Read for main idea
Go through the text, answer the question and read for the main idea.
1.    Although it sounds wild, the day is coming. (It is achievable.)
2.    Main idea: Chinese scientists have created starch using carbon dioxide, hydrogen (氢) and electricity, according to a study published in the journal Science on Sept 24.

III.    Read for structure (scientific exposition)
  

IV. Read for details 
Read the text carefully and answer the following questions.
1. What have Chinese scientists recently accomplished?
Chinese scientists have created starch using carbon dioxide, hydrogen (氢) and electricity, according to a study published in the journal Science on Sept 24.

2. What are the differences between the natural and synthetic processes of creating starch?
 

3. How do scientists simplify this conversion process in the laboratory?
  
4. What are the significances of the breakthrough?
① process is achievable in a lab and beneficial
② made it possible to shift to industrial manufacturing 
③ satisfies our carbohydrate needs without farming
④ benefits space exploration

V. Post-reading 
Are there concerns about this technology?
High cost

VI. Language study
1. make up                          组成
2. the vast majority of                 绝大多数
3. demonstrate                       证明
4. benefit from                       得益于
5. the first authors of the study          这项研究的第一作者
6. made it possible                   使之成为可能
7. provide for                       供养

 

After reading, how do you understand the title? •sing (high) praise for: praise highly (literal meaning) •They sing in nature to show their admiration and love for nature and life. •“歌”颂自然 
VI. Language study Carrying a guitar, maraca (沙槌), camera and drone (无人机) while spending almost three hours climbing a wild mountain road, Liu Liyuan and her husband, Yu Hanyi, finally reached the top of Shenzhen Astronomical Observatory. Finding a comfortable corner amid (在......之中) the beautiful scenery, the couple sat down and began to play the instruments and sing quietly, with the camera recording. They chose Light Years Away, the Chinese theme song of the space movie Passengers (2016). 
Note: 这两句中的carrying…和finding…是现在分词短语作伴随状语;句2中的with…是独立主格结构;the Chinese theme song…是同位语。 
VII. Discussion What would you like to do to show your love for nature and life? 
 

本期配套教案共2页:  1  2

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