以下内容是2020年12月英语六级第一套听力Lecture 2解析（沈阳新东方）供各位考生参考！新东方网四六级频道第一时间更新公布英语四六级真题答案。同时广大考生还可随时@新东方网四六级微博及公众号，与线上老师以及考生随时互动答疑，敬请广大考生密切关注新东方网四六级频道以及2020年12月英语四六级真题解析专题。

　　四级成绩算分、六级成绩算分功能→_→猛戳

　　想知道新东方老师如何点评12月考试→_→猛戳

　　【试题】

　　In 1984 the World Chess Championship was called off abruptly due to withered frame of play whose competing for the title. He wasn't alone experiencing extreme physical effects of the game. Elite players can reportedly burn up to an absurd six thousand calories in one day. Does that mean that thinking harder is a simple route to losing weight? Well,(19) when the body is at rest we know that the brain uses up a startling 20% to 25% of the body's overall energy. This level of utilization actually makes the brain the most energy-expensive organ in the body, and yet it makes up only 2% of the body's weight, overall.

　　So the more we put this organ to work, the more calories we'll burn? Technically, the answer is yes, for cognitively difficult tasks. What counts as a "difficult"' mental task varies between individuals. But generally, it could be described as something that "the brain cannot solve easily using previously learned routines, or tasks that change the conditions continuously. However, deep thinking will not burn off calories gained from eating a sugary snack. (20)Because in relation to the the brain's huge overall energy usage, which is devoted to a multitude of tasks, the energy required just to think harder is actually comparatively tiny. We are unconscious of most of what uses up the brain's energy.

　　A lot of that activity is unrelated to the conscious activities like learning how to sing or play the guitar.

　　(21)The brain is able to allocate blood and thus energy to particular regions that are being active at that point but the overall energy availability in the brain is for to be constant. So, while there might be significant increases in energy use at localized regions of the brain when we perform difficult cognitive tasks, when it comes to the whole brain's energy budget overall, these activities don’t significantly alter it.

　　So why the chess champion grew too skinny to compete in his chess competition? The general consensus is that it mostly comes down to stress and reduced food consumption, not mental exhaustion. Keeping your body pumped up for action for long periods of time is very energy demanding. If you can’t eat as often or as much as you can or would normally — then you might lose weight.

　　Question 19 to 20 are based on the recording you have just heard:

　　Questions 19: what do we learn about the brain when the body is at rest?

　　Question 20: what does the speaker say about the consumption of the brain's energy?

　　Question 21: what do we learn about the overall energy availability in the brain?

　　【答案】

　　(见上文划线部分)

　　【解析】

　　Q19.

　　该题询问了身体处于休息当中时，大脑会如何运转。根据听力定位技巧，则找到上文划线句子19，便可识别出正确答案为 “the brain uses up a startling 20% to 25% of the body's overall energy”(大脑会惊人地消耗人体整体能量的20%-25%) 。

　　Q20.

　　该题询问大脑能量的消耗。虽然文中未出现brain consumption，但是却出现了consumption的同义词“usage”和“use up”，则可定位到划线句子(21)的位置，该题为典型的听力同义词转换，若平时多注重词汇多积累该题并不难回答。

　　Q21.

　　文中只出现一处availability，则由availability则定位到(21)划线部分即为正确答案。

　　【听力述评】

　　本次听力讲座的文本难度偏难，题源为Live Science 2019年文章 How Many Calories Can the Brain Burn by Thinking?该文章主要以国际象棋冠军引出人身体在休息时也会消耗大量能量。三道题当中19、21听到关键词进行定位便可得出正确答案，20题则需要同义词知识储备。虽整体听力便难，但想得到正确答案却相对简单。

　　【考后关注】

　　新东方四六级查分，第一时间了解过没过线！敬请关注新东方网四六级真题解析专题，抢先get查分时间！

　　新东方热报课程推荐>>

　　英语四级强化班|英语六级强化班

　　考研公共课|考研无忧计划