🎬 Video Cinema: Brain Power (大脑力量与神经奇迹)
📖 视频核心解剖全景 (Brain Anatomy Overview)
人脑重约三磅，由数千亿神经元及密集交织的神经纤维构成。视频系统呈现了大脑的四大核心解剖区域：占据脑容量约四分之三的大脑皮层（Cerebrum，主管学习、推理、言语及五感感知）、间脑（Diencephalon，调控进食饮水与体重代谢）、小脑（Cerebellum，掌控肌肉运动与身体动态平衡）以及脑干（Brain Stem，直接监管心率心跳、呼吸消化及睡眠等生命基础维生中枢）。
📜 原声听力逐句对照 (Interactive Transcript)
00:00
The brain is the most complex organ in the human body. As part of our nervous system, it coordinates all of the body's functions.
大脑是人体中最复杂精密的器官。作为神经系统的司令中枢，它统领协调着全身各项生理机能。
00:12
An adult brain weighs about 1.4 kilograms. It is divided into four main areas: the cerebrum, the cerebellum, the brain stem, and the diencephalon.
成年人的大脑重约1.4千克，主要划分为四大区域：大脑、小脑、脑干以及间脑。
00:30
The largest section is the cerebrum, which makes up over three-quarters of the brain's volume. Made up of neurons and nerve fibers, it receives information from neurons all over the brain and body, and controls higher functions such as learning, reasoning, speech, plus senses like sight and hearing.
体积最大的部分是大脑半球，占据了全脑体积的四分之三以上。它由密集的神经元和神经纤维交织而成，接收全身各处的神经冲动，掌管学习、推理、言语等高级认知思维以及视觉、听觉等重要感觉。
00:54
The second largest part of the brain is the cerebellum, which is also made of nerve cells and nerve fibers. These fibers carry signals to other parts of the brain and spinal cord. The cerebellum is responsible for coordinating muscle movements, particularly those that control the body's balance.
第二大区域是小脑，同样由神经细胞与纤维构成。这些纤维将信号传向大脑其他区域和脊髓。小脑主管协调骨骼肌运动，尤其是维持人体的姿势与平衡。
01:18
The third area, the brain stem, lies in front of the cerebellum and connects the brain to the spinal cord. It is made up of three parts. These help the brain process sensory information such as taste, control the body's movement, auditory and visual processing, and create motor and sensory pathways between the brain and the spinal cord.
第三大区域是位于小脑前方的脑干，它向下连接脊髓，由三个部分组成。脑干协助处理味觉等感觉信息，控制运动传导、听觉与视觉信息加工，并在大脑与脊髓之间构筑关键的双向神经通路。
01:48
Together, these three parts of the brain stem control vital functions like cardiac activity, respiration, digestion, and sleep.
这三部分紧密协作，维持着心跳搏动、呼吸起伏、消化吸收以及睡眠周期等维持生命不可或缺的自主生命体征。
02:08
The fourth area, the diencephalon, makes up the core of the brain. About the size of an apricot, the diencephalon consists of several structures that process information from all senses except smell, and the hypothalamus and pituitary gland, which help regulate the brain's chemicals and hormones to control weight, eating, and drinking.
第四个区域间脑构成了全脑的核心腹地。间脑大约只有一颗杏子大小，包含负责整合除嗅觉外所有感觉信息的丘脑结构，以及下丘脑和脑下垂体，它们分泌调节脑内神经递质与激素，精确调控体重、进食与饮水等本能行为。
02:38
Together, the brain's four main parts make sure our body functions correctly. Through exercise and a balanced diet, we in turn can help keep our brain healthy so that it continues to keep our body working well for many years to come.
这四大区域休戚与共，保驾护航人体各系统的正常运转。通过适度运动与均衡膳食，我们亦能呵护大脑的生机与健康，使其在漫长岁月中长久守护我们的充沛体魄！
📝 Video Activities & Brain Science (全套原版练习)
得分: 0 / 13 题
🎯 视频练习完成进度
0%
🧬 Before Watch: Definitions (神经科学词汇匹配)
🧠 While Watch: Brain Regions (四大脑部中枢功能匹配)
🔍 While Watch: True or False (解剖细节甄别)
🗂 20 Vocab Review (单元核心学术词盘点)
🤔 Critical Thinking (认知科学与现代医学前景)
🧬 Before You Watch · Medical Neuro-Science 神经词汇配对 (Page 167)
5 题 · 官方释义配对
P167 Before Watch · 1. is made up (of)
1. What is the definition of is made up (of)?
P167 Before Watch · 2. regulate
2. What is the definition of regulate?
P167 Before Watch · 3. sensory
3. What is the definition of sensory?
P167 Before Watch · 4. signal
4. What is the definition of signal?
P167 Before Watch · 5. coordinate
5. What is the definition of coordinate?
🧠 While You Watch · A. Brain Regions 大脑四大中枢功能匹配 (Page 168)
4 题 · 官方脑解剖匹配
P168 Brain Anatomy · Diencephalon
6. Which function is controlled by the diencephalon (间脑)?
P168 Brain Anatomy · Cerebellum
7. Which function is controlled by the cerebellum (小脑)?
P168 Brain Anatomy · Brain Stem
8. Which function is controlled by the brain stem (脑干)?
P168 Brain Anatomy · Cerebrum
9. Which function is controlled by the cerebrum (大脑皮层)?
🔍 While You Watch · B. True or False 正误判断 (Page 168)
4 题 · 官方正误研判
P168 While Watch B · Statement 1
10. 1. The cerebrum takes up about half of the brain’s volume.
P168 While Watch B · Statement 2
11. 2. Nerve fibers carry signals to the spinal cord.
P168 While Watch B · Statement 3
13. 3. The brain stem is made of four parts.
P168 While Watch B · Statement 4
13. 4. Chemicals are produced in the brain’s core.
🗂 Vocabulary Review · Unit 10 核心学术词汇全景盘点 (20 Words)
全套核心考点
10A: conscious, emotion, flexible*, function*, perspective*, reinforce*, structure*, transform*, vast, welfare*
10B: abstract, acknowledge*, dismiss, imitate, master, motive*, possess, primitive, pronounce, theory*
* 标注星号者为 Academic Word List (AWL) 核心学术词汇
🤔 Critical Thinking · Synthesizing Ideas (认知神经科学与人类未来)
思辨拓展
💡 官方思考题与参考观点：
Question: Consider what you have learned in this unit about cognition research. In what ways do you think the findings might be important? How might they help people in the future?
Cognition and brain research are fundamentally important because deciphering neural circuitry directly informs treatments for severe psychiatric and neurodegenerative conditions (such as Alzheimer's, clinical depression, and PTSD). Furthermore, understanding how healthy neuroplasticity works allows researchers to design targeted cognitive therapies, mindfulness interventions, and brain-machine interfaces that restore cognitive functions when natural processes are damaged.
Unit 10 · Grand Slam Master 大满贯通关！
Reading Explorer 3 · All in the Mind (Brain Power Complete Triad)
0 / 13
视频实战得分
Unit 10A
探秘人类心智
Unit 10B
探秘动物心智
100%
全课通关达成
“The human brain is an extraordinary masterpiece of nature—three pounds of tissue holding our memories, passions, reason, and our deepest sense of identity.”