第88课 Trapped in a mine 困在矿井里 — 词汇精讲

课文原文与译文

课文原文

Six men have been trapped in a mine for seventeen hours. If they are not brought to the surface soon they may lose their lives. However, rescue operations are proving difficult. If explosives are used, vibrations will cause the roof of the mine to collapse. Rescue workers are therefore drilling a hole on the north side of the mine. They intend to bring the men up in a special capsule. If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours. As it is, they have been drilling for sixteen hours and they still have a long way to go. Meanwhile, a microphone, which was lowered into the mine two hours ago, has enabled the men to keep in touch with the closest relatives. Though they are running out of food and drink, the men are cheerful and confident that they will get out soon. They have been told that rescue operations are progressing smoothly. If they knew how difficult it was to drill through the hard rock, they would lose heart.

参考译文

六个人被困在矿井里已有十七个小时了。如果不把他们尽快救到地面上来，他们就有可能丧生。然而，事实证明营救工作非常困难。如果用炸药爆破，震动会引起矿顶塌落。因此，营救人员在矿井的北侧钻了一个孔。他们打算用一种特制的容器把这六个人救上来。如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。实际情况是，他们已经钻了十六个小时了，但离钻透还早着呢。与此同时，两个小时以前放下井去的一只麦克风使井下的人可以与地面上他们最亲近的人保持联系。虽然他们的食物和饮料都快消耗尽了，但这些人的心情很好，并且坚信他们很快就会出去。他们一直被告知营救工作进行得非常顺利。如果他们知道了钻透那坚硬的岩石有多么困难，他们会丧失信心的。

一、基础统计

1.1 词数与词汇密度统计

统计项目	数值	说明
总词数	198	标点符号除外
不同词形数	95	不区分大小写
TTR（Type-Token Ratio）	48.0%	中等偏高的词汇多样性
实词数	102	名词、动词、形容词、副词
词汇密度	51.5%	较高，信息量大
平均词长	4.4	略高于一般口语文本
句子数量	10	完整句
平均句长	19.8词/句	较长，结构较复杂

1.2 词类分布统计

词类	数量	占比	示例
名词	35	17.7%	mine, hour, life, operation, explosive, vibration, roof, hole, side, capsule, layer, rock, soil, job, way, microphone, relative, food, drink, heart
动词	31	15.7%	trap, bring, lose, prove, use, cause, collapse, drill, intend, complete, lower, enable, keep, run, get, tell, progress, know
形容词	14	7.1%	seventeen, difficult, hard, special, north, close, long, cheerful, confident, smooth
副词	12	6.1%	soon, however, therefore, still, meanwhile, ago, still
介词	22	11.1%	in, for, to, on, of, beneath, into, with, out, through
连词	8	4.0%	if, though, and, that, as, which
代词	14	7.1%	they, their, them, it, which
助动词/情态动词	10	5.1%	have, been, be, may, will, would
冠词	15	7.6%	a, an, the
数词	4	2.0%	six, seventeen, sixteen, two
限定词	7	3.5%	this, these, a few, the closest

实词 vs 虚词比例：102 : 96 ≈ 52% : 48%

二、词汇难度分级

2.1 分级标准

K1词汇：英语最高频1000词（基础词汇）
K2词汇：英语次高频1000词（中级词汇）
K3/学术词汇：学术词汇表(AWL)词汇
专有/专业词汇：特定领域词汇

2.2 各等级词汇分布

难度等级	数量	占比	代表性词汇
K1（最高频）	68	68.4%	trap, mine, hour, soon, lose, life, use, cause, men, brought, surface
K2（次高频）	19	19.2%	rescue, operation, explosive, vibration, collapse, drill, capsule, layer, beneath, enable, confident, relative
K3（学术/书面）	8	8.1%	beneath, enable, confident, microphone, smoothly, progress, intend
专有/专业	4	4.0%	explosives, capsule, microphone, vibrations

2.3 分级词汇详表

K1 基础词汇（最高频1000词）

trap, mine, hour, soon, lose, life, use, cause, men, brought, surface, however, 
difficult, hole, side, hard, job, hours, way, go, food, drink, cheerful, get, 
told, knew, six, seventeen, have, been, for, they, are, not, to, the, may, 
their, lives, if, will, roof, workers, therefore, on, north, of, a, in, 
bring, up, special, been, had, not, there, as, it, is, drilling, sixteen, 
and, still, long, two, ago, has, keep, touch, with, closest, though, 
running, out, that, heart

K2 中级词汇（次高频1000词）

rescue, operation, explosive, vibration, collapse, drill, capsule, layer, 
beneath, enable, confident, relative, progress, smoothly, intend, completed, 
lowered, meanwhile, soil, rock

K3 学术/书面词汇

beneath, enable, confident, microphone, smoothly, progress, intend, collapse

三、核心词汇精讲（12词）

1. trap /træp/ v.&n. [K1]

本课义：v. 使陷入困境；使落入险境
考频/重要性：四级核心词 / 高考必考词 / 雅思常用词
常见搭配：
- be trapped in 被困在……中 + Six men have been trapped in a mine.
- trap sb. into (doing) sth. 诱使某人陷入…… + Don’t let yourself be trapped into making a decision.
- fall into a trap 落入陷阱 / 陷入困境
- set/lay a trap (for) 设下陷阱
一词多义：
- 义1（动词）：设陷阱捕捉；诱捕 → The hunter trapped a fox.
- 义2（动词）：使陷入困境；卡住 → He was trapped in the burning building.
- 义3（名词）：陷阱；圈套 → The robbers fell right into the police trap.
- 义4（名词）：困境；窘境 → Many young people are caught in the unemployment trap.
派生词族：
- n. trap 陷阱；困境
- adj. trapped 被困的；陷入困境的
- n. trapper 设陷阱捕兽者
易混淆词：
- trap（陷阱） vs strap（带子，皮带）
- trap（捕获） vs tap（轻拍，轻敲）

2. rescue /ˈreskjuː/ v.&n. [K2]

本课义：v.&n. 营救；救援
考频/重要性：四级核心词 / 高考高频词 / 新闻常用词
常见搭配：
- rescue operations 营救行动 + Rescue operations are proving difficult.
- come to the rescue 前来救援 + The lifeguard came to the swimmer’s rescue.
- rescue sb. from 把某人从……救出 + Firefighters rescued six people from the burning building.
- rescue team/workers 救援队 / 救援人员
一词多义：
- 义1（动词）：营救；援救 → The hostages were rescued by the army.
- 义2（名词）：营救；救援行动 → A major rescue operation is under way.
派生词族：
- n. rescue 救援；营救行动
- n. rescuer 救援者；营救人员
- adj. rescued 被救的
易混淆词：
- rescue（营救） vs secure（使安全；获得）
- rescue 强调从危险/困境中救出；save 含义更广（挽救、节省、储存）

3. surface /ˈsɜːfɪs/ n.&v. [K1]

本课义：n. 地面；表面
考频/重要性：四级核心词 / 学术词汇
常见搭配：
- bring to the surface 带到地面上 + If they are not brought to the surface soon…
- on the surface 在表面上；外表上 + On the surface, everything seems fine.
- below/beneath/under the surface 在地下；在深处 + Tensions exist beneath the surface.
- scratch the surface 浅尝辄止；触及皮毛
一词多义：
- 义1（名词）：表面；表层 → The lake was calm on the surface.
- 义2（名词）：地面；液面 → The submarine rose to the surface.
- 义3（名词）：外表；外观 → His kindness is only on the surface.
- 义4（动词）：浮出水面；显露 → The fish surfaced and grabbed the bait.
派生词族：
- n. surface 表面；地面
- adj. surfaced 有路面的；铺过的
- v. resurface 重新出现；再次浮出水面
易混淆词：
- surface（表面） vs surface（服务，动词）— 同形异义

4. explosive /ɪkˈspləʊsɪv/ n.&adj. [K2]

本课义：n. 炸药；爆炸物
考频/重要性：四级词汇 / 科技英语常用词
常见搭配：
- use explosives 使用炸药 + If explosives are used…
- high explosive 高爆炸药
- explosive device 爆炸装置
- explosive growth/increase 爆炸性增长
- explosive situation 一触即发的局势
一词多义：
- 义1（名词）：炸药；爆炸物 → The bomb squad searched for explosives.
- 义2（形容词）：爆炸性的；易爆炸的 → The situation is highly explosive.
- 义3（形容词）：暴躁的；易怒的 → He has an explosive temper.
派生词族：
- n. explosive 炸药；爆炸物
- adj. explosive 爆炸性的
- n. explosion 爆炸；爆发
- v. explode 爆炸；爆发；激增
易混淆词：
- explosive（爆炸物） vs explore（探索）— 形近但意义完全不同

5. collapse /kəˈlæps/ v.&n. [K2]

本课义：v. 倒塌；坍塌
考频/重要性：四级核心词 / 雅思常用词 / 新闻高频词
常见搭配：
- cause sth. to collapse 导致……倒塌 + Vibrations will cause the roof of the mine to collapse.
- collapse under pressure 在压力下崩溃
- economic/financial collapse 经济崩溃
- collapse into laughter/tears 突然大笑/大哭
- lung collapse 肺萎陷（医学）
一词多义：
- 义1（动词）：倒塌；坍塌 → The building collapsed during the earthquake.
- 义2（动词）：崩溃；垮掉 → The economy is in danger of collapsing.
- 义3（动词）：昏倒；倒下 → He collapsed from heat exhaustion.
- 义4（名词）：倒塌；崩溃 → The collapse of the bridge was caught on camera.
派生词族：
- v./n. collapse 倒塌；崩溃
- adj. collapsed 倒塌的；崩溃的
易混淆词：
- collapse（倒塌） vs collar（衣领）vs collate（核对）

6. drill /drɪl/ v.&n. [K2]

本课义：v. 钻（孔）；打（眼）
考频/重要性：四级词汇 / 实用高频词 / 工程英语
常见搭配：
- drill a hole 钻孔 + Rescue workers are drilling a hole on the north side.
- drill through 钻透 + How difficult it was to drill through the hard rock.
- drill for oil/gas 钻探石油/天然气
- fire drill 消防演习
- drill sergeant 训练教官（军事）
一词多义：
- 义1（动词）：钻孔；打眼 → They are drilling for water.
- 义2（动词）：训练；操练 → The teacher drilled the students in grammar.
- 义3（名词）：钻头；钻机 → He used an electric drill.
- 义4（名词）：训练；演习 → We had a fire drill this morning.
派生词族：
- v./n. drill 钻；训练
- n. drilling 钻孔；操练
- n. driller 钻工；钻孔机
易混淆词：
- drill（钻孔） vs grill（烧烤；拷问）— 形近词

7. capsule /ˈkæpsjuːl/ n. [K3/学术]

本课义：n. 密封舱；容器
考频/重要性：六级词汇 / 学术词汇 / 航天/医学专业词
常见搭配：
- special capsule 特制容器 + Bring the men up in a special capsule.
- space capsule 太空舱
- time capsule 时间胶囊
- capsule hotel 胶囊旅馆
- gelatin capsule 胶囊（药品）
一词多义：
- 义1：密封舱；太空舱 → The astronauts returned to Earth in a space capsule.
- 义2：胶囊（药品） → Take two capsules three times a day.
- 义3：小容器；小盒子 → A capsule containing documents was buried.
- 义4：摘要；概要 → a news capsule 新闻简报
派生词族：
- n. capsule 胶囊；密封舱
易混淆词：
- capsule vs capsule（无常见混淆词，注意发音）

8. layer /ˈleɪə/ n.&v. [K2]

本课义：n. 层；层次
考频/重要性：四级核心词 / 学术词汇
常见搭配：
- a layer of 一层…… + A hard layer of rock beneath the soil.
- top/outer/inner layer 顶层/外层/内层
- ozone layer 臭氧层
- layer by layer 一层一层地
- add another layer 增加另一层
一词多义：
- 义1（名词）：层；表层 → There was a thin layer of ice on the pond.
- 义2（名词）：层次；阶层 → the upper layers of society 社会上层
- 义3（动词）：把……堆积成层 → Layer the potatoes and onions in the dish.
派生词族：
- n. layer 层；层次
- n. layering 分层；压条法（园艺）
易混淆词：
- layer（层） vs lawyer（律师）— 发音相似，注意区分
- layer vs lair（巢穴，窝）

9. beneath /bɪˈniːθ/ prep.&adv. [K2/学术]

本课义：prep. 在……下方；在……下面
考频/重要性：四级词汇 / 学术书面语 / 文学常用
常见搭配：
- beneath the soil 在土壤下面 + A hard layer of rock beneath the soil.
- beneath the surface 在表面之下
- beneath one’s dignity 有失尊严
- beneath contempt 卑鄙到极点；令人不齿
一词多义：
- 义1（介词）：在……下方 → The valley lies beneath the mountain.
- 义2（介词）：低于；次于 → She married beneath her (social status).
- 义3（副词）：在下面；在下方 → The apartment has a garage beneath.
派生词族：
- prep./adv. beneath 在下方
易混淆词/近义词辨析：
- beneath vs under vs below vs underneath
  - beneath：较正式，文学性强，常暗示接触或紧贴下方
  - under：最常用，正下方
  - below：低于某水平面或位置，不一定正下方
  - underneath：强调被覆盖或隐藏在下

10. enable /ɪˈneɪbl/ v. [K3/学术]

本课义：v. 使能够；使可能
考频/重要性：四级核心词 / 学术词汇表(AWL) / 雅思写作高频词
常见搭配：
- enable sb. to do sth. 使某人能够做某事 + Has enabled the men to keep in touch…
- enable sth. 使……成为可能
- new technology enables 新技术使……成为可能
一词多义：
- 义1：使能够；使可能 → The software enables us to process data faster.
- 义2：授权；准许（正式）→ The new law enables the police to search properties.
派生词族：
- v. enable 使能够
- n. enabler 促成者；授权者
- adj. enabled 激活的；有能力的
- v. disable 使丧失能力；禁用
- n. ability 能力
易混淆词：
- enable（使能够） vs unable（不能的）— 反义词关系
- enable vs enact（制定法律；扮演）

11. confident /ˈkɒnfɪdənt/ adj. [K3/学术]

本课义：adj. 自信的；确信的
考频/重要性：四级核心词 / 高考必考词 / 雅思口语高频词
常见搭配：
- confident that 确信…… + The men are cheerful and confident that they will get out.
- confident of/about 对……有信心 + She is confident of success.
- confident in 对……有信心 + You need to be confident in yourself.
- feel confident 感到自信
- confident smile/manner 自信的笑容/态度
一词多义：
- 义1：自信的；有信心的 → He is confident about his abilities.
- 义2：确信的；肯定的 → I am confident that she will come.
派生词族：
- adj. confident 自信的
- n. confidence 信心；信任；秘密
- adv. confidently 自信地
- adj. confidential 机密的；保密的
- adv. confidentially 机密地
易混淆词/近义词辨析：
- confident（自信的） vs confidant（知己，心腹朋友）— 同根不同义
- confident vs confidential（机密的）— 形近词

12. lose heart /luːz hɑːt/ 习语 [K1]

本课义：丧失信心；灰心丧气
考频/重要性：四级核心习语 / 高考必考短语 / 书面表达常用
常见搭配：
- lose heart 灰心；丧失信心 + They would lose heart.
- lose one’s heart to sb. 爱上某人（注意区分）
- take heart 振作起来；鼓起勇气（反义）
- from the heart 发自内心地
- heart and soul 全心全意地
一词多义/相关习语：
- lose heart：丧失信心；灰心 → Don’t lose heart — there’s still hope.
- lose one’s heart to：爱上 → She lost her heart to the handsome stranger.
- at heart：本质上；内心里 → He’s a kind man at heart.
- by heart：凭记忆；牢记 → Learn this poem by heart.
派生词族：
- n. heart 心；内心；核心
- adj. heartless 无情的；冷酷的
- adj. hearty 热情的；丰盛的
易混淆表达：
- lose heart（灰心） vs lose one’s heart（爱上）— 有无所有格，意义截然不同

四、词形与构词

4.1 派生词分析

词根/基础词	派生词	词性	词义
rescue	rescuer	n.	救援人员；救助者
operate	operation	n.	操作；手术；行动
explode	explosive	n./adj.	炸药；爆炸性的
vibrate	vibration	n.	振动；震动
drill	drilling	n.	钻孔；操练
able	enable	v.	使能够
able	unable	adj.	不能的
confidence	confident	adj.	自信的
hard	harden	v.	使变硬；变坚固
smooth	smoothly	adv.	顺利地；平稳地
close	closest	adj.	最亲近的（最高级）
north	northern	adj.	北方的；北部的
progress	progression	n.	前进；进展

4.2 复合词分析

复合词	构成	词义	例句
rescue workers	rescue + workers	救援人员	Rescue workers are drilling…
north side	north + side	北侧；北边	On the north side of the mine.
hard layer	hard + layer	坚硬层	A hard layer of rock.
rescue operations	rescue + operations	救援行动	Rescue operations are proving difficult.
closest relatives	closest + relatives	最亲近的亲属	With the closest relatives.

4.3 词类转换（一词多性）

单词	词性1/义	词性2/义	词性3/义
trap	v. 使陷入困境	n. 陷阱	—
rescue	v. 营救	n. 营救	—
surface	n. 表面；地面	v. 浮出水面	—
explosive	n. 炸药	adj. 爆炸性的	—
collapse	v. 倒塌	n. 倒塌	—
drill	v. 钻孔	n. 钻机/训练	—
layer	n. 层	v. 分层堆积	—
progress	n. 进展	v. 前进；进展	—
run	v. 跑；运行	v. 耗尽（run out）	—

4.4 构词法教学价值

本课构词特点：

派生构词丰富：-tion（operation, vibration）、-sive（explosive）、-er（rescuer）、en-（enable）、-ly（smoothly）
复合词实用：rescue workers, north side 等是新闻英语常见搭配
词类转换灵活：drill, layer, surface, progress 等多词兼具名词和动词用法

五、搭配与语块

5.1 高频搭配表

搭配	结构类型	词义	课文例句
trapped in	被动+介词	被困在	have been trapped in a mine
bring to	动词+介词	把……带到	brought to the surface
lose one’s life	动词+所有格+名词	丧生	may lose their lives
run out of	短语动词	用完；耗尽	running out of food
keep in touch with	动词短语	与……保持联系	keep in touch with relatives
lose heart	动词+名词	灰心；丧失信心	would lose heart
prove difficult	系动词+形容词	证明是困难的	are proving difficult
have a long way to go	固定表达	还有很长的路要走	still have a long way to go
as it is	习语	事实上；照现状	As it is, they have been drilling…
get out	短语动词	出去；逃脱	will get out soon

5.2 短语动词详解

短语动词	词义	例句	可分性
bring up	抚养；提出；呕吐	bring the men up	可分离
run out (of)	用完；耗尽	running out of food	不可分离（接宾语需of）
get out	出去；逃脱；泄露	will get out soon	不可分离
drill through	钻透	drill through the hard rock	可分离
keep in touch	保持联系	keep in touch with	不可分离

5.3 习语与固定表达

表达	词义	用法说明	例句
As it is	事实上；照目前的情况	置于句首，表示转折	As it is, they have been drilling…
lose heart	灰心；丧失信心	注意与lose one’s heart to区分	they would lose heart
have a long way to go	还有很长的路要走	口语和书面语通用	still have a long way to go
running out of	耗尽；用完	进行时表将来	are running out of food
keep in touch with	与……保持联系	固定搭配	keep in touch with relatives

5.4 专业表达（救援主题）

表达	领域	词义
rescue operations	救援/军事	救援行动
drilling a hole	工程/采矿	钻孔
hard layer of rock	地质/工程	坚硬岩层
special capsule	工程/航天	特制容器/舱
vibrations cause collapse	工程/物理	震动导致坍塌
lower into	救援/工程	放入；降入

六、语义分析

6.1 主题词汇场 — 救援主题

本课围绕矿井救援主题，形成多个语义场：

A. 救援行动相关

rescue, save, bring up, surface, operations, workers, 
intend, plan, progress, smoothly, complete, job

B. 困难阻碍相关

difficult, hard, collapse, problem, obstacle, 
trapped, stuck, beneath, layer, rock, soil

C. 设备工具相关

explosives, capsule, microphone, drill, hole,
vibrations, special, tool, equipment

D. 情绪状态相关

cheerful, confident, lose heart, hopeful, 
optimistic, spirits, positive, determined

E. 时间空间相关

hours, soon, meanwhile, ago, long way, 
surface, beneath, north side, into, through

6.2 同义词辨析

词对	词A	词B	区别
rescue / save	rescue	save	rescue强调从危险/困境中救出；save含义更广（救、节省、储存）
difficult / hard	difficult	hard	difficult较正式；hard更口语；hard可指物理硬度，difficult不能
confident / sure	confident	sure	confident强调对自己能力的信心；sure强调对事实的确定
beneath / under	beneath	under	beneath更正式、文学化；under最常用
collapse / fall	collapse	fall	collapse强调突然、完全的倒塌；fall含义更广

6.3 反义词对照

词	反义词	说明
beneath	surface	地下 ↔ 地面
collapse	stand	倒塌 ↔ 站立
cheerful	sad / gloomy	愉快 ↔ 悲伤
confident	doubtful / uncertain	自信 ↔ 怀疑
lose heart	take heart	灰心 ↔ 振作
difficult	easy / smooth	困难 ↔ 容易
hard	soft	坚硬 ↔ 柔软

6.4 词汇语义网络图

                    [RESCUE 救援]
                         │
    ┌────────────┬───────┴───────┬────────────┐
    ▼            ▼               ▼            ▼
[人员]        [行动]          [困难]        [情绪]
men           operations      difficult     cheerful
workers       drilling        collapse      confident
relatives     bring up        hard layer    lose heart
              capsule         explosives
              microphone      vibrations

七、词汇教学建议

7.1 必背单词（6个核心词）

序号	单词	词性	核心义项	必记搭配
1	trap	v./n.	使陷入困境/陷阱	be trapped in
2	rescue	v./n.	营救	rescue operations, come to the rescue
3	collapse	v./n.	倒塌	cause to collapse
4	drill	v./n.	钻孔	drill a hole, drill through
5	enable	v.	使能够	enable sb. to do sth.
6	confident	adj.	自信的	confident that/of

7.2 拓展词汇（4个派生/关联词）

单词	关联方式	词性	词义	关联词
rescuer	派生	n.	救援人员	rescue → rescuer
explosive	派生	n./adj.	炸药/爆炸性的	explode → explosive
vibration	派生	n.	震动	vibrate → vibration
beneath	近义	prep.	在下方	under, below

7.3 词汇学习策略建议

主题记忆法
- 将本课词汇按”救援”主题分类记忆
- 绘制救援场景图，标注英文词汇
词根词缀法
- 重点掌握：-tion（名词后缀）、en-（使动前缀）、-ly（副词后缀）
- 举一反三：operate→operation, able→enable, smooth→smoothly
搭配记忆法
- 记住核心搭配而非孤立单词
- 例：be trapped in, lose heart, keep in touch with
语境记忆法
- 在课文语境中理解多义词
- 例：drill（钻孔/训练）、layer（层/分层）
对比记忆法
- 区分易混淆词：
  - rescue vs save
  - beneath vs under vs below
  - lose heart vs lose one’s heart to

八、词汇与语法结合点

8.1 情态动词标记词

情态动词	课文例句	语法功能
may	they may lose their lives	表示可能性推测（可能）
would	they would have completed	虚拟语气，表示与过去事实相反
would	they would lose heart	虚拟语气，表示与现在事实相反
will	vibrations will cause	表示将来的必然结果

8.2 被动语态标记词

被动结构	课文例句	语法说明
have been trapped	Six men have been trapped	现在完成时被动
be brought	they are not brought to	含有情态意义的被动
are used	explosives are used	条件句中的被动
was lowered	which was lowered into	过去时被动（定语从句）
have been told	They have been told	现在完成时被动
had not been	there had not been	虚拟语气中的被动

8.3 虚拟语气中的动词形式

虚拟类型	课文例句	动词形式
与过去事实相反	If there had not been… they would have completed	had done + would have done
与现在事实相反	If they knew… they would lose	did / were + would do

8.4 重要语法-词汇结合练习

练习1：用所给词的适当形式填空

The six men __________ (trap) in the mine for seventeen hours.
If explosives __________ (use), the roof will collapse.
They __________ (tell) that rescue operations are progressing smoothly.
If they knew the truth, they __________ (lose) heart.

练习2：根据句意选择正确的情态动词

If they are not brought to the surface soon, they ______ (may/must) lose their lives.
If explosives are used, vibrations ______ (will/would) cause the roof to collapse.
If they knew how difficult it was, they ______ (will/would) lose heart.

九、质量检查清单

检查项目	完成状态
✅ 词频统计表	已提供总词数、不同词形数、TTR、词汇密度等
✅ 词汇难度分级表	已分级K1/K2/K3/专业词汇，含占比和详表
✅ 核心词完整分析	12个核心词，每个包含音标、本课义、搭配、多义、派生、易混淆词
✅ 主题词汇场分析	已按救援、困难、设备、情绪等主题分类
✅ 教学建议	提供必背单词6个、拓展词汇4个、学习策略5条
✅ 词汇-语法结合点	情态动词、被动语态、虚拟语气与词汇的结合

十、附录：词汇速查表

单词	音标	词性	本课核心义
trap	/træp/	v./n.	使陷入困境；陷阱
rescue	/ˈreskjuː/	v./n.	营救；救援
surface	/ˈsɜːfɪs/	n./v.	地面；表面
explosive	/ɪkˈspləʊsɪv/	n./adj.	炸药；爆炸性的
collapse	/kəˈlæps/	v./n.	倒塌；坍塌
drill	/drɪl/	v./n.	钻孔；钻机
capsule	/ˈkæpsjuːl/	n.	密封舱；胶囊
layer	/ˈleɪə/	n./v.	层；层次
beneath	/bɪˈniːθ/	prep./adv.	在……下方
enable	/ɪˈneɪbl/	v.	使能够；使可能
confident	/ˈkɒnfɪdənt/	adj.	自信的；确信的
lose heart	/luːz hɑːt/	习语	灰心；丧失信心

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