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高二教案 875期(6版)
发布时间:2022-06-20

本期配套教案共2页:  1  2

2021-2022学年度第45期总第875期
Exploring space soil (P6)
邯郸市第一中学   张蕴
I. Lead-in


Soil plays an essential part in life on Earth. Discuss with your partner some vital functions of soil.

Soil can also provide vital evidence in the search for life outside of Earth. A new discovery may have brought us one step closer to discovering the truth.  
II. Read for information
READ AND ANSWER
1. What is the name of this probe? What did it discover?
2. Why are amino acids so important?
3. What’s the significance of the discovery?
4. Even though it is an unprecedented discovery, is it that big a deal? Why or why not?
5. Do other agencies have similar projects? What’s their purpose?

1. What is the name of this probe? What did it discover?
The probe is the Japan Aerospace Exploration Agency’s (JAXA) “Hayabusa 2”.
It discovered “amino acids” in sand samples brought back to Earth from the Ryugu asteroid, the first time that amino acids have been discovered outside Earth.

2. Why are amino acids so important?
Amino acids combine to form proteins, the building blocks for life.

3. What’s the significance of the discovery?
Experts previously said the samples“are the most primitive material in the solar system we have ever studied”.
The unprecedented discovery of multiple types of amino acids on an extraterrestrial body could hint at the existence of life outside of Earth.
The latest discovery will likely reinforce this theory that the amino acids came to ancient Earth by meteorite.
4. Even though it is an unprecedented discovery, is it that big a deal? Why or why not?
Simply having the basic ingredients for dough doesn’t mean it can lead to the creation of pizza. Similarly, discovering amino acids in space doesn’t necessarily prove the existence of life beyond our home planet.

5. Do other agencies have similar projects? What’s their purpose?
NASA has a similar mission to asteroid Bennu. Its OSIRIS-REx probe has already collected samples and is expected to return to Earth with them sometime next year.
By comparing the results of Ryugu’s sample material with samples collected from the asteroid Bennu, scientists will better understand the various chemical mixtures in the universe and how life began.

III. Read for structure

IV. Words and expressions


V. Sentence structure
1. The Japan Aerospace Exploration Agency’s (JAXA) probe “Hayabusa 2” discovered “amino acids” in sand samples brought back to Earth from the Ryugu asteroid (小行星), Japanese financial newspaper The Nikkei reported, marking the first time that amino acids have been discovered outside Earth.
2. As amino acids combine to form proteins, the building blocks for life, the discovery could hold the clues to understanding the origins of life.
3. It also means amino acids can likely be found on other planets and natural satellites, hinting that “life could have been born in more places in the universe than previously thought”.

过去分词作后置定语
动词-ing短语作状语
同位语
动词-ing短语作状语
省略


https://www.bilibili.com/video/BV1yU4y1H7PU/?spm_id_from=333.788.recommend_more_video.3

 

本期配套教案共2页:  1  2

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