[TOEFL-Listening] 1주차 - Chapter 6

 

p156 ~ p161

 

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< p156 ~ p157>

 

[LC summary Ch.6 18-22]

In this conversation, Professor had meeting with student for encouraging the student to participate more in class discussions. She answered with detail and did assignment well in this seminar. But she was not good at participating in discussion with other students. She thought that she doesn't have background in a subject and her major is mathematics, so she only have one correct answer. But, professor said that the main objective of the seminar is learning with other opinions from each other. Also, he encouraged her to share her thoughts on the topic from last week's lecture and let her know that she had her own point.

 

	p156	Chapter6 Test [18-22] Vocab List
1	reluctant	꺼리는, 마지못한, 주저하는
2	perspective	관점, 시각
3	subjective	주관적인
4	objective	객관적인, 목적
5	objectively	객관적으로
6	valid	타당한
7	emerge	나오다, 나타나다
8	Naturalism	자연주의
9	Realism	사실주의
10	Romanticist	낙만주의 작가
11	sympathetic	동정적인, 동정어린
12	idealizing	이상화하다

 

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< p158 ~ p159>

 

Chapter 6. 23~28 Summary

 

In the part of a lectur on biology, professor exlained bacteria communication. It was the first to be founded by a student Ken Nealson. He were studying these bacteria called Vibrio fischeri, the bioluminescent bacteria don't make any light until they have detected a large enough number of other bacteria through quorum sensing. As anotehr perspective, bacteria can attack to us by releasing toxins. Although a small amount of bacteria can't threaten our immune system, they can detect enough autoinducers through quorum sensing and decide to release their toxins at once. So, medical research departments are concentrating on learning how to hack the bacteria communication system to prevent lots of medical conditions.

 

	p158	Chapter6 Test [23-28] Vocab List
1	primate	영장류 (동물)
2	luminescence	(빛의) 발광
3	bioluminescent bacteria	발광 미생물 bio(생물) + lummin(빛) + escent(작용)
4	Vibrio fischeri	바다속 발광 박테리아 중 한 종류
5	quorum	the number of people you need at a meeting to take a vote
6	quorum sensing	bacteria light up What happens is something called 'quorum sensing'
7	molecule	분자
8	autoinducer	bacteria sends out a signal 자가 유도 물질
9	to trigger	(장치를) 작동시키다 (= set off), 일으키다
10	toxin	독소
11	credibility	신뢰성
12	immune system	면역 체계
13	infection	감염
14	microscopic	미세한

 

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< p160 ~ p161>

 

Chapter 6. 29~34 Summary

 

 In this lecture on geography, professor is discussing lakes of the Rub' al- khali. There is almost completely barren now, but that wasn't always the case. There is a lot of geological evidence showing how it was different long ago.

 Scientists speculates that monsoon rains poured over the Arabian desert. As a result, geological records said taht threre were two distnct sets of lakes in the area : the order lake and the newer lake. To be specific, some sort of climate change would have transformed sand dune characteristic, which form lakebveds. Another evidence that the area was not always barren is the fossils found near each set of lakes. Specifically, the various types of fossils show the relation of the size of the lakes in desert long ago. 

 

 

	p160	Chapter6 Test [29-34] Vocab List
1	ongoing	진행 중인
2	peninsula	반도
3	apt	적절한
4	barren	척박한, 황량한
5	geological	지질학의
6	grassland	초원
7	teem with	~로 풍부하다
8	silt	토사 sand, soil, mud etc., that is carried by flowing water and that sinks to the bottom of a river, pond, etc.
9	distinct	뚜렷한, 분명한
10	evaporate	증발하다
11	patch	구역, 지역, 부분
12	quarter of	~ 4분의 1
13	speculate	추측[짐작]하다
14	monsoon	우기[장마]
15	empty quarter	공백의 지역(=RUB' AL KHALI)
16	gap	틈[구멍/간격]
17	lackebed	호수바닥
18	livable	살기에 적합한[좋은]
19	migrate	이주[이동]하다
20	apparently	듣자[보아]하니