词汇表

catastrophe /catastrophe/ v.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of catastrophe.
catastrophe 的核心释义与用法
💬 课本原句例句
Researchers studied how catastrophe plays an essential role in the dark side.
研究人员探讨了 catastrophe 如何在“月之暗面”中发挥关键作用。
deflect /deflect/ n.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of deflect.
deflect 的核心释义与用法
💬 课本原句例句
Researchers studied how deflect plays an essential role in the dark side.
研究人员探讨了 deflect 如何在“月之暗面”中发挥关键作用。
dilemma /dilemma/ n.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of dilemma.
dilemma 的核心释义与用法
💬 课本原句例句
Researchers studied how dilemma plays an essential role in the dark side.
研究人员探讨了 dilemma 如何在“月之暗面”中发挥关键作用。
engage /engage/ v.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of engage.
engage 的核心释义与用法
💬 课本原句例句
Researchers studied how engage plays an essential role in the dark side.
研究人员探讨了 engage 如何在“月之暗面”中发挥关键作用。
motor /motor/ n.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of motor.
motor 的核心释义与用法
💬 课本原句例句
Researchers studied how motor plays an essential role in the dark side.
研究人员探讨了 motor 如何在“月之暗面”中发挥关键作用。
nuclear /nuclear/ n.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of nuclear.
nuclear 的核心释义与用法
💬 课本原句例句
Researchers studied how nuclear plays an essential role in the dark side.
研究人员探讨了 nuclear 如何在“月之暗面”中发挥关键作用。
numerous /numerous/ adj.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of numerous.
numerous 的核心释义与用法
💬 课本原句例句
Researchers studied how numerous plays an essential role in the dark side.
研究人员探讨了 numerous 如何在“月之暗面”中发挥关键作用。
rotate /rotate/ v.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of rotate.
rotate 的核心释义与用法
💬 课本原句例句
Researchers studied how rotate plays an essential role in the dark side.
研究人员探讨了 rotate 如何在“月之暗面”中发挥关键作用。
scenario /scenario/ n.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of scenario.
scenario 的核心释义与用法
💬 课本原句例句
Researchers studied how scenario plays an essential role in the dark side.
研究人员探讨了 scenario 如何在“月之暗面”中发挥关键作用。
smash /smash/ n.
📖 英文释义 · 词义解析
The core meaning, academic usage, or specific characteristics of smash.
smash 的核心释义与用法
💬 课本原句例句
Researchers studied how smash plays an essential role in the dark side.
研究人员探讨了 smash 如何在“月之暗面”中发挥关键作用。

📖 课文原文 · The Dark Side

Paragraph A
Bigger than a sports arena, it comes frighteningly close to our planet every few years. By December Tholen had calculated that the chance that a poofus would smash into Earth on April 13, 2020, was one in 40. Alarm about the threat started to spread. Then on December 26, 2004, a real catastrophe struck. The Indian Ocean tsunami, which claimed hundreds of thousands of lives. The public forgot about a poofus. Meanwhile, astronomers had found earlier images of the asteroid. The extra data enabled them to calculate its orbit and they discovered that it would actually fly safely by Earth in 2020. However, this alarming scenario started a race among scientists to find solutions to the threat of large objects striking Earth. Near misses, every day, tons of dust from comets and pieces of asteroids, the size of grains of sand, burn up in the Earth's upper atmosphere. Most days, a piece or two of rock or metal, the size of an apple or bigger, actually makes contact with Earth.
Paragraph B
Yet it's unlikely you'll ever be struck by a meteorite. Very few meteorites are ever known to have a person. In 1954, a grapefruit-sized rock bounced off Anne Hodges' radio and hit her as she lay on her sofa near Silicaga, Alabama in the United States. She escaped with only a bruised hip and wrist. Since then, there have been some spectacular near misses. On August 10, 1972, an object the length of a car and weighing 150 tons traveled through the upper atmosphere. Hundreds of people saw its bright trail that sunny afternoon as it crossed the sky from Utah in the United States to Alberta, Canada, before flying back out into space. On March 22, 1989, a rock measuring 300 meters across came within several hundred thousand kilometers of Earth, which in astronomical terms is uncomfortably close.
Paragraph C
Smash hits. There is evidence that in the past, massive comments or asteroids have struck Earth's surface. 35 million years ago, a three-kilometer-wide rock smashed into the ocean floor, 160 kilometers from what is now Washington, DC, leaving an 85-kilometer-wide crater buried beneath Chesapeake Bay. Another giant rock called Titan 10 kilometers in diameter smashed into the Gulf of Mexico around 66 million years ago, unleashing thousands of times more energy than all the nuclear weapons on the planet combined. The whole Earth burned that day says Ed Lu, a physicist and former astronaut. Three-quarters of all life forms, including the dinosaurs, went extinct. Astronomers have identified numerous asteroids big enough to cause a catastrophe for the entire planet. None is on course to do so in our lifetimes, but there are many smaller asteroids that could strike with devastating effects in the near future. On June 30, 1908, an object as big as a 15-story building fell in Tunguska, a remote part of Siberia. The object, an asteroid or a small comet, exploded several kilometers before impact, burning and blowing down trees across 2,000 square kilometers. Clouds of tiny particles of dust and ice fill the sky. The particles reflected the sun's light onto the Earth, and for days, people in Europe could read newspapers outdoors at night. More recently, in 2013, a 20-meter meteor exploded over Chelyabin's oblast Russia, injuring dozens of people on the ground. It was the largest object to enter the Earth's atmosphere since Tunguska.
Paragraph D
The next time a large object falls out of the sky, we may be taken by surprise, though an early warning system for near-earth objects has recently been put into place. Sky surveys, like the one done by Tholen, are also helping to fill the gap.
Paragraph E
Every couple of weeks says Lou, we're going to find another asteroid with, like, a one in a thousand chance of hitting the Earth. What can be done? Within decades, the world's leaders may be faced with a dilemma. What to do about an incoming space object? Few experts are giving this much thought, according to NASA's astronomer David Morrison, the number would roughly staff a couple of shifts at McDonald's, he says. Ed Lou, one of these few experts, is working on a plan that employs a spaceship to deflect asteroids. We were originally thinking about how you would land on an asteroid and push it, he says, but that doesn't work well. If the surface isn't solid, you have trouble landing or keeping anything on it. Moreover, asteroids are always rotating. Pulling the asteroid along would be much easier. Rather than having a physical line between you and the thing you're towing, you're just using the force of gravity between them, Lou says, a nearby spacecraft would pull the asteroid off course very slowly but steadily using only gravity. Just a slight change in course could mean missing Earth by tens of thousands of kilometers. An asteroid bomb? The drawback to Lou's plan is that it would work only for asteroids up to a few hundred meters across that could be engaged far from Earth. Russian scientist Vadim Simonenko and his colleagues concluded that the best way to deflect a larger asteroid up to 1.5 kilometers wide would be to explode a nuclear bomb nearby. The explosion would destroy smaller rocks. For larger ones, the explosion would burn a layer of rock off the asteroid's surface. The expanding gas would act as a rocket motor pushing the asteroid onto a new course.
Paragraph F
As a poofus swings past Earth in 2021, there is a small chance that Earth's gravity will deflect the asteroid just enough to put it on a certain collision course with our planet on the next past in 2036. The odds are currently estimated at 1 in 45,000, so a strike is extremely unlikely. Meanwhile, astronomers will continue to track a poofus to learn if it will merely taunt us again or actually strike.

📝 预习课本精练

得分: 0 / 18 题
🎯 预习练习完成进度 0%
📌 Before You Read 📌 Reading Comprehension 📌 Reading Skill
📘 BEFORE YOU READ 共 5 题
1. What is the main topic introduced in Before You Read for The Dark Side?
正确答案：A
解析：根据教材，该部分主要介绍了《The Dark Side》的核心背景。
2. Which factor is highlighted as most crucial in the background information?
正确答案：A
解析：背景信息着重强调了环境与文化适应的重要性。
3. According to the preview, what should readers scan for in the text?
正确答案：A
解析：扫读时应聚焦关键事实、年代及核心术语。
4. What key skill is practiced in this preview section?
正确答案：A
解析：预习部分训练利用标题与插图预测篇章内容。
5. Why is understanding the background context important before reading?
正确答案：A
解析：背景预习能够激活已有认知，显著提升阅读理解效率。
📘 READING COMPREHENSION 共 8 题 (Part A 5题 + Part B 3题)

A. Multiple Choice. Choose the best answer for each question.

1. What is the main idea of the reading passage?
正确答案：A
解析：全文围绕《The Dark Side》的重大意义、历史渊源及深远影响展开论述。
2. According to Paragraph B, what does the evidence indicate?
正确答案：A
解析：根据段落B，历史证据清晰地揭示了长期的演变过程。
3. In Paragraph C, why does the author mention technological tools?
正确答案：A
解析：段落C重点说明了新技术如何为深入分析和保护工作赋能。
4. What can be inferred from Paragraph D?
正确答案：A
解析：从段落D可以推断出，应对全球挑战需要及时的科学洞察。
5. Which statement best summarizes the conclusion in the reading?
正确答案：A
解析：结尾段总结指出，全球协作与科学见解将助力构建可持续的未来。

B. Cause and Effect / Detail Matching.

1. Cause: Researchers conducted systematic investigations on the dark side. → What is the effect?
正确答案：A
解析：系统性研究使专家们获得了保护关键遗产与知识的重要见解。
2. Cause: Environmental and social conditions underwent rapid changes. → What is the effect?
正确答案：A
解析：环境与社会变迁促使相关物种与社群演化出适应性策略。
3. Cause: Advanced analysis methods were applied to historical samples. → What is the effect?
正确答案：A
解析：先进分析方法的运用揭示了以往被掩盖的内在规律。
📘 READING SKILL: Identifying Main Ideas & Analyzing Evidence 共 5 题
1. Which paragraph primarily focuses on the historical background and early development?
正确答案：A
解析：段落B主要阐述了该主题的历史背景与早期发展演变。
2. Which paragraph outlines modern scientific applications and analytical tools?
正确答案：A
解析：段落C重点介绍了现代科学技术在分析中的具体应用。
3. Which paragraph presents the concluding call to action and future vision?
正确答案：A
解析：段落E对全文进行了升华总结，并展望了未来的行动方向。
4. 'Scientists have documented these patterns across multiple continents.' This statement is:
正确答案：A
解析：该陈述属于由多方科研数据支撑的客观事实。
5. 'Protecting our heritage requires dedication and international cooperation.' This statement is:
正确答案：A
解析：该句属于作者提出的倡议性建议与号召。

📘 核心词汇矩阵与跟读打卡

catastrophe 跟读: 0次
/catastrophe/ v.
catastrophe 的核心释义与用法
The core meaning, academic usage, or specific characteristics of catastrophe.
deflect 跟读: 0次
/deflect/ n.
deflect 的核心释义与用法
The core meaning, academic usage, or specific characteristics of deflect.
dilemma 跟读: 0次
/dilemma/ n.
dilemma 的核心释义与用法
The core meaning, academic usage, or specific characteristics of dilemma.
engage 跟读: 0次
/engage/ v.
engage 的核心释义与用法
The core meaning, academic usage, or specific characteristics of engage.
motor 跟读: 0次
/motor/ n.
motor 的核心释义与用法
The core meaning, academic usage, or specific characteristics of motor.
nuclear 跟读: 0次
/nuclear/ n.
nuclear 的核心释义与用法
The core meaning, academic usage, or specific characteristics of nuclear.
numerous 跟读: 0次
/numerous/ adj.
numerous 的核心释义与用法
The core meaning, academic usage, or specific characteristics of numerous.
rotate 跟读: 0次
/rotate/ v.
rotate 的核心释义与用法
The core meaning, academic usage, or specific characteristics of rotate.
scenario 跟读: 0次
/scenario/ n.
scenario 的核心释义与用法
The core meaning, academic usage, or specific characteristics of scenario.
smash 跟读: 0次
/smash/ n.
smash 的核心释义与用法
The core meaning, academic usage, or specific characteristics of smash.

📝 Vocabulary Practice 全套精练

得分: 0 / 14 题
🎯 复习练习完成进度 0%
📘 A. Sentence Completion. Complete the sentences using target words. 共 6 题
1. Researchers conducted experiments to examine how catastrophe (v.) affects the outcome.
正确答案：A
解析：句意：研究人员进行实验以检验 catastrophe (catastrophe 的核心释义与用法) 如何影响结果。
2. Researchers conducted experiments to examine how deflect (n.) affects the outcome.
正确答案：A
解析：句意：研究人员进行实验以检验 deflect (deflect 的核心释义与用法) 如何影响结果。
3. Researchers conducted experiments to examine how dilemma (n.) affects the outcome.
正确答案：A
解析：句意：研究人员进行实验以检验 dilemma (dilemma 的核心释义与用法) 如何影响结果。
4. Researchers conducted experiments to examine how engage (v.) affects the outcome.
正确答案：A
解析：句意：研究人员进行实验以检验 engage (engage 的核心释义与用法) 如何影响结果。
5. Researchers conducted experiments to examine how motor (n.) affects the outcome.
正确答案：A
解析：句意：研究人员进行实验以检验 motor (motor 的核心释义与用法) 如何影响结果。
6. Researchers conducted experiments to examine how nuclear (n.) affects the outcome.
正确答案：A
解析：句意：研究人员进行实验以检验 nuclear (nuclear 的核心释义与用法) 如何影响结果。
📘 B. Definitions. Match each word with its correct academic meaning. 共 4 题
1. The word numerous (adj.) is best defined as:
正确答案：A
解析：numerous 意为：numerous 的核心释义与用法 (The core meaning, academic usage, or specific characteristics of numerous.)
2. The word rotate (v.) is best defined as:
正确答案：A
解析：rotate 意为：rotate 的核心释义与用法 (The core meaning, academic usage, or specific characteristics of rotate.)
3. The word scenario (n.) is best defined as:
正确答案：A
解析：scenario 意为：scenario 的核心释义与用法 (The core meaning, academic usage, or specific characteristics of scenario.)
4. The word smash (n.) is best defined as:
正确答案：A
解析：smash 意为：smash 的核心释义与用法 (The core meaning, academic usage, or specific characteristics of smash.)
📘 C. Word Link & Phrasal Verbs. Choose the best phrase. 共 4 题
1. Experts recommend that teams work in close collaboration to carry ________ comprehensive investigations.
正确答案：A
解析：carry out 为固定搭配，意为“执行、开展（调查/研究）”。
2. The new scientific findings have shed critical new light ________ the mystery.
正确答案：A
解析：shed light on 为经典学术短语，意为“阐明、使…清楚显现”。
3. In order to succeed, researchers need to focus closely ________ the primary evidence.
正确答案：A
解析：focus on 为固定短语，表示“集中注意力于、聚焦于”。
4. The findings clearly point ________ an underlying pattern across different regions.
正确答案：A
解析：point to 意为“指向、表明（某种规律或趋势）”。
Welcome to National Geographic's exploration of Shooting Stars.
欢迎来到国家地理关于《流星雨》的探索纪实。
00:00
Welcome to National Geographic's exploration of Shooting Stars.
欢迎来到国家地理关于《流星雨》的探索纪实。
00:15
Specialists and explorers venture into extraordinary environments to uncover hidden truths.
专家与探险家深入非凡的环境，揭示深藏的真相。
00:35
Through rigorous investigation and fieldwork, they document phenomena that inspire wonder.
通过严谨的调查与实地考察，他们记录下令人惊叹的现象。
00:55
These findings help us understand the delicate balance of our planet and ourselves.
这些发现帮助我们理解地球与人类自身的微妙平衡。

📝 Video Activities 官方拓展测试

得分: 0 / 9 题
🎯 视频测试完成进度 0%
📘 A. Before You Watch. Match each term to its definition. 共 4 题
1. expedition • • ________
正确答案：A
解析：expedition 意为：an organized journey made for a specific purpose (考察/探险)
2. documentary • • ________
正确答案：A
解析：documentary 意为：a film or video giving facts about a person, event, or nature (纪录片)
3. pioneer • • ________
正确答案：A
解析：pioneer 意为：a person who is among the first to explore or settle a new area (先驱者)
4. stewardship • • ________
正确答案：A
解析：stewardship 意为：the responsible overseeing and protection of natural resources (守护与管理责任)
📘 B. While You Watch. Check your comprehension of the documentary. 共 5 题
1. Is Shooting Stars an important milestone in scientific exploration?
正确答案：A
解析：视频明确指出该主题在科学探索中具有里程碑式的意义。
2. Does the documentary present verifiable evidence gathered from fieldwork?
正确答案：A
解析：纪录片通过大量实地镜头与一手科研数据支撑观点。
3. What challenge did the specialists face during their fieldwork?
正确答案：A
解析：考察队在严苛的自然环境下克服了重重困难。
4. What key discovery did the documentary highlight?
正确答案：A
解析：纪录片强调了生物与生态系统之间微妙而紧密的相互依存关系。
5. How does international collaboration contribute to modern research?
正确答案：A
解析：国际合作汇聚全球智慧与科研资源，有力攻克复杂学术难题。

📚 Unit 12 核心词汇总览 (Master List)

1. catastrophe catastrophe 的核心释义与用法
2. deflect deflect 的核心释义与用法
3. dilemma dilemma 的核心释义与用法
4. engage engage 的核心释义与用法
5. motor motor 的核心释义与用法
6. nuclear nuclear 的核心释义与用法
7. numerous numerous 的核心释义与用法
8. rotate rotate 的核心释义与用法
9. scenario scenario 的核心释义与用法
10. smash smash 的核心释义与用法

🏆 3. Honor Certificate 课后荣誉通关证书

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