UNIT 5 Section Ⅳ Writing about the unexplained-【优学精讲】2025-2026学年高中英语选择性必修第四册教用课件(外研版)
2026-06-02
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教辅
摘要:
该高中英语课件围绕“未解现象”主题,整合阅读与写作教学,通过分析“北纬30度之谜”课文导入,学习修饰语、倒装句等语言手法,过渡到百慕大三角演讲稿写作,形成“输入-分析-输出”的学习支架,辅以视频素材增强情境感知。
其亮点在于融合语言能力与思维品质培养,如通过解构课文“总—分—总”结构、训练演讲稿衔接技巧提升表达能力,借助未解现象探究(如百慕大三角原因分析)发展分析推断思维。语料积累(动作、环境描写词汇)和课时检测(完形、读后续写)助力学习能力提升。学生能增强综合语言运用能力,教师可获得系统教学资源,优化教学效率。
内容正文:
Section Ⅳ
Writing about the unexplained
目 录
01
细品课文·学手法
02
演练佳作·写美文
03
教材词汇·练续写
04
课时检测·提能力
细品课文·学手法
目 录
Step 1|品教材课文
A LONG LINE OF MYSTERIES
Along a special line of latitude, known as the 30th parallel north,
lie numerous sites of ancient civilisations and impressive natural features.
Ancient civilisations appeared on the parallel, including Babylon,
with its famous tower; Egypt, with its pyramids; China, with its
Sanxingdui culture, etc.These civilisations appeared at a similar time,
and all developed advanced bronze-making techniques.Were they part of a single super-civilisation, as some think?
目 录
英语·选择性必修第四册(WY)
It’s argued that the 30th parallel north is a line of great natural
energy, with frequent earthquakes and volcanic eruptions.This creates
amazing natural features, including Mount Qomolangma, the Dead
Sea, and rivers, such as the Nile, the Mississippi and the
Yangtze.Lacking any concrete evidence, some even claim it was
supernatural powers!
Scientists, however, dispute these theories.It’s more likely,
they argue, that civilisations arose on the 30th parallel north because the
climate there is generally warm and damp.Major tectonic plates meet at
this latitude, causing earthquakes, which helped form the
Himalayas.The rest, they say, is either coincidence or fantasy.
目 录
英语·选择性必修第四册(WY)
Step 2|析写作手法
学语言
1. 修饰语:
①形容词impressive; advanced; frequent; amazing。
②副词generally。
2. 句式:完全倒装句。
3. 连接词:including; such as; however。
目 录
英语·选择性必修第四册(WY)
4. 高级表达:
①主语从句It’s argued that ...;It’s more likely that ...
②原因状语从句because the climate there is generally warm and damp。
③动词-ing短语Lacking any concrete evidence; causing earthquakes。
④非限制性定语从句which helped form the Himalayas。
5. 时态:一般现在时和一般过去时。
目 录
英语·选择性必修第四册(WY)
学结构
本文使用了“总—分—总”结构,开头部分简要介绍了北纬30度线上
存在许多古代文明遗址及自然奇观这一神秘现象;主体部分详细介绍
了这一神秘现象并给出了一些民间流传的非科学性解释;结尾部分引
用科学家的分析,总结了对该现象的看法。
Step 3|背出彩佳句
1. The largest pyramid of all, also known as the Great Pyramid of
Cheops (or Khufu), was built around 5,000 years ago.
其中最大的金字塔,也被称为基奥普斯(或胡夫)大金字塔,建于约
5,000年前。
目 录
英语·选择性必修第四册(WY)
2. It took him 10 years to obtain a patent for this remarkable device,
which still has no scientific explanation today.
他花了10年的时间为这个了不起的装置取得了专利,这个装置直到今
天也没有科学的解释。
3. In the 1940s, a French hardware dealer spotted some mummified
animals exactly one-third up the height of the pyramid.
在20世纪40年代,一个法国五金商人发现一些动物的木乃伊正好在金
字塔高度的三分之一处。
目 录
英语·选择性必修第四册(WY)
演练佳作·写美文
目 录
假定你是李华,你将要代表你校参加一场有关未解现象的演
讲比赛。请你写一篇有关百慕大三角未解之谜的演讲稿准备参
赛,内容包括:
(1)位置:位于大西洋,靠近佛罗里达州;
(2)原因:奇特的海水和突如其来的风暴,被称为死亡三角;
(3)事件:多名科学家前往考察,后来杳无音信。
目 录
英语·选择性必修第四册(WY)
注意:(1)写作词数应为80个左右;
(2)可以适当增加细节,以使行文连贯。
目 录
英语·选择性必修第四册(WY)
一、审题谋篇,结构分明
目 录
英语·选择性必修第四册(WY)
二、要点陈述,语言规范
1. 我是来自星光中学的李华。
2. 我演讲的主题是“未解之谜 —— 百慕大三角(Bermuda
Triangle)”。
3. 百慕大三角位于大西洋,靠近美国的佛罗里达州。
I’m Li Hua from Xing Guang Middle School.
The topic of my speech is “The Unexplained — The Bermuda
Triangle”.
The Bermuda Triangle is in the Atlantic Ocean, near Florida in the USA.
目 录
英语·选择性必修第四册(WY)
4. 因其奇特的海水和突然的风暴被称为死亡三角。
5. 据说,在这一地区已有超过50只船舶和20架飞机神秘消失。
It is known as The Triangle of Death for its strange sea water and sudden
storm.
In this area more than 50 ships and 20 airplanes are said to have
mysteriously disappeared.
6. 关于百慕大三角之谜背后的确切原因,目前还没有经过证实的
理论。
There is no proven theory for the exact reason behind the mystery of the
Bermuda Triangle.
目 录
英语·选择性必修第四册(WY)
7. 事实上,人们每天都在这个地区航行,没有发生事故。
In fact, people navigate the area every day without incident.
三、句间衔接,过渡自然
用非谓语动词作状语合并要点3和要点4
The Bermuda Triangle is in the Atlantic Ocean, near Florida in the
USA, known as The Triangle of Death for its strange sea water and
sudden storm.
目 录
英语·选择性必修第四册(WY)
四、检查誊写,卷面整洁
Good morning, everyone!
I’m Li Hua from Xing Guang Middle School. The topic of my
speech is “The Unexplained — The Bermuda Triangle”.
The Bermuda Triangle is in the Atlantic Ocean, near Florida in
the USA, known as The Triangle of Death for its strange sea water and
sudden storm.
目 录
英语·选择性必修第四册(WY)
In this area more than 50 ships and 20 airplanes are said to have
mysteriously disappeared.There is no proven theory for the exact reason
behind the mystery of the Bermuda Triangle. In fact, people navigate the
area every day without incident.
Thank you!
目 录
英语·选择性必修第四册(WY)
教材词汇·练续写
目 录
词汇
动作
描写 intrigue v.(因奇特或神秘而)激起……的兴趣,引起……的好奇心
bury v.将……埋在下面
abandon v.离弃,逃离
retreat v.后退;离开;退避
shrink v.退缩,畏缩
shrink from 避免做,不愿做
set out 动身踏上(漫长的)旅途
run for one’s life 逃命
think twice 再三考虑,慎重考虑
apply ...to ...把……应用于……
throw oneself into 积极投入到……中去
目 录
英语·选择性必修第四册(WY)
词汇
环
境
描
写 canal n.运河
coral n.珊瑚
ruin n.残垣断壁,废墟
目 录
英语·选择性必修第四册(WY)
佳句
1.With trembling hands, he buried the secret letter deep in the
backyard and then abandoned his hometown, never looking back as the
memory of that fateful night haunted his every step. (动作描写)
他双手颤抖着将那封密信深埋在后院,随后便头也不回地逃离了家
乡,那晚决定命运的情景如影随形。
目 录
英语·选择性必修第四册(WY)
佳句
2.His face turning pale, Tom shrank back against the cold wall, as if
trying to disappear, and then retreated slowly, his heart pounding
wildly at the sight of the fierce dog barking furiously at him. (动作描
写)
汤姆脸色变得苍白,畏缩着靠在冰冷的墙上,仿佛想消失一般,然
后慢慢往后退去。看到那只恶犬朝着他狂吠,他的心剧烈地跳动
着。
3.The deserted canal, once filled with busy boats, now lay silent
beside the ruins of the ancient town. (环境描写)
那条荒废的运河,曾经满是穿梭忙碌的船只,如今却静静地躺在古
镇的废墟旁。
目 录
英语·选择性必修第四册(WY)
情境导语:暴风雪中迷路的尼古拉斯(Nicholas)攥紧雪杖,想起书
里的求生技巧——是时候验证这些知识了!
第一步:完成句子雏形现
1. 对冒险故事很感兴趣的尼古拉斯和父亲出发去滑雪了。
Nicholas, intrigued by adventure stories, set out to go skiing with his
father.
目 录
英语·选择性必修第四册(WY)
2. 他们那天很开心。当他们要离开时,尼古拉斯决定沿着不同的路径
下山。
3. 然而,一场猛烈的暴风雪席卷了这个地区,尼古拉斯迷路了,孤身
一人。
They had a wonderful day.When they were to leave, Nicholas decided to
go down in different trails.
However, a fierce snowstorm swept into the area and Nicholas got lost,
all alone.
目 录
英语·选择性必修第四册(WY)
4. 他想起了他曾经读到的一则故事。故事中一个人被遗弃在一个荒野
地区,不得不自救。
5. “我不会畏缩于危险,是时候把我学到的技巧付诸实践了,”他低
声说道。
He remembered the story he ever read, in which a man was abandoned in
a wild area and had to save himself.
“I would not shrink from danger.It’s time to apply the tips I have
learned to use,” he whispered.
目 录
英语·选择性必修第四册(WY)
6. 他决心逃命。
7. 虽然情绪低落,但他不会后退。
8. 再三考虑之后,他全身心地投入到建造一个取暖的雪洞上。
9. 第二天,他的父亲找到了他,安然无恙。
He determined to run for his life.
Although in a subdued mood, he would not retreat.
Thinking twice,he threw himself into building a snow cave to keep
himself warm.
The next day, he was found by his father, safe and sound.
目 录
英语·选择性必修第四册(WY)
第二步:过渡衔接连成篇
Nicholas,intrigued by adventure stories,set out to go skiing with
his father.They had a wonderful day.When they were to leave, Nicholas
decided to go down in different trails.However, a fierce snowstorm
swept into the area and Nicholas got lost, all alone.He remembered the
story he ever read,in which a man was abandoned in a wild area and had
to save himself.“I would not shrink from danger.It’s time to apply the
tips I have learned to use,” he whispered.He determined to run for his
目 录
英语·选择性必修第四册(WY)
life.Although in a subdued mood, he would not retreat.Thinking
twice,he threw himself into building a snow cave to keep himself
warm.The next day,he was found by his father, safe and sound.
目 录
英语·选择性必修第四册(WY)
课时检测·提能力
目 录
Ⅰ.完形填空
(2025·海南海口高二下期末) My parents live in the foothills of
Santa Barbara, California. They’d been talking for a while about
setting up some 1 traps, just to see what sorts of animals were
wandering nearby.
Last year, I received an e-mail from my dad with the subject line:
“Secret creature?” There was no text, but attached was a
(n) 2 , just 10 seconds, shot in the night vision. It showed a tiny
creature, 3 down a driveway. The animal stopped midway, turned
目 录
英语·选择性必修第四册(WY)
slightly and then disappeared into the 4 . Watching it again, I still
couldn’t 5 what it was, but something about the driveway
looked 6 . Then it hit me — it was my childhood home. I realised my
parents’ camera was finally 7 in our backyard.
Before long, more e-mails with more videos started coming in. By
the end of this February, my father had 8 a pair of rabbits, plus
more foxes. He even 9 the mystery of the secret creature in last
year’s video. It was a raccoon (浣熊) that became 10 because it
目 录
英语·选择性必修第四册(WY)
lost its tail. “Can you believe it?” my father laughed 11 on the
telephone — he was just overjoyed about his great 12 .
For me, the real joy in watching these videos was seeing how they
turned our familiar backyard into a place full of 13 . In some sense,
it serves as a(n) 14 : even in the places we think we know best,
there’s always more to explore and 15 about.
语篇解读:本文是一篇记叙文。文章主要讲述了作者父母在家附近
安装摄像头,捕捉到了附近的小动物,作者由此感悟到即使在熟悉
的地方,也总有更多的事物等待我们去探索和发现。
语篇解读:本文是一篇记叙文。文章主要讲述了作者父母在家附近
安装摄像头,捕捉到了附近的小动物,作者由此感悟到即使在熟悉
的地方,也总有更多的事物等待我们去探索和发现。
目 录
英语·选择性必修第四册(WY)
1. A. animal B. sensor C. camera D. man
解析: 根据下文可知,为了看看附近有什么动物在游荡,作者的
父母设置了一些相机陷阱。
2. A. photo B. video
C. advertisement D. description
解析: 根据下文可知,10秒钟的是一段视频。
3. A. dashing B. breaking
C. driving D. crawling
解析: 根据下文可知,这只微小的生物冲进了车道。
√
√
√
目 录
英语·选择性必修第四册(WY)
4. A. mist B. trap C. cold D. darkness
解析: 根据上文可知,这是在黑暗中拍摄的,所以这只动物消失
在了黑暗中。
5. A. bring out B. turn out
C. figure out D. check out
解析: 根据上下文可知,作者又看了一遍,还是搞不清楚是
什么。
√
√
目 录
英语·选择性必修第四册(WY)
6. A. realistic B. primitive
C. familiar D. apparent
解析: 根据下文可知,作者后来想起这是自己童年时的家,所以
应该是注意到了熟悉的东西。
7. A. in place B. out of date
C. out of control D. in charge
解析: 根据上文it was my childhood home可知,相机被安在
后院。
√
√
目 录
英语·选择性必修第四册(WY)
8. A. hunted B. stopped
C. tracked D. invade
解析: 根据上文可知,作者的父亲在黑夜设置照相机追踪动物。
9. A. deepened B. solved
C. tackled D. replayed
解析: 根据下文可知,作者的父亲解开了谜团。
√
√
目 录
英语·选择性必修第四册(WY)
10. A. unpredictable B. unrecognizable
C. unbelievable D. unacceptable
解析: 根据上文I still couldn’t 5 what it was可知,作者看不
清楚视频里的是什么,也就是说,视频里的动物无法辨认。
11. A. disappointedly B. regretfully
C. relievedly D. excitedly
解析: 根据上文可知,作者的父亲很兴奋。
√
√
目 录
英语·选择性必修第四册(WY)
12. A. discovery B. comparison
C. response D. assumption
解析: 根据上文It was a raccoon 可知,父亲搞清楚了视频里的动
物是什么,因此,对于自己的发现欣喜若狂。
13. A. energy B. habitat
C. surprises D. opportunities
解析: 根据上文He even 9 the mystery of the secret creature in
last year’s video.可知,相机安在家的后院,捕捉了很多没有见过的
动物,所以,这里充满了惊喜。
√
√
目 录
英语·选择性必修第四册(WY)
14. A. warning B. reminder
C. challenge D. access
解析: 根据下文可知,作者认为这些视频是对我们的一种提醒。
15. A. wonder B. terrify
C. complain D. dissolve
解析: 根据上文he was just overjoyed about his great 12 可知,
在自己的家旁边,也能探索到很多好东西,也可以感到惊奇。
√
√
目 录
英语·选择性必修第四册(WY)
Ⅱ.语法填空
(2025·广东潮州高二下期末) What does China look like from the
sky? You can find the answer by 16. (watch) the
documentary (纪录片), Aerial China. It shows us our country’s
beautiful 17. (nature) views.
The documentary has 34 episodes (集). Each episode tells
about a different place. The 18. (one) season
includes six episodes. It took more than 300 people one year
19. (finish) Season 1. It’s 20. (say)
目 录
英语·选择性必修第四册(WY)
that 16 helicopters and 57 drones (无人机) have flown over 150,000 kilometers to finish making the documentary.
When you watch the documentary, you will be surprised by the
amazing views of nature. You can enjoy the beautiful villages in Jiangxi.
You can enjoy 21. grassland in Xinjiang.
But the amazing views are not the only thing Aerial China
wants to show 22. (we). Yu Le is the chief
23. (direct) of the documentary. He said, “The more
目 录
英语·选择性必修第四册(WY)
you know 24. your motherland, the more you will love it. Then you will feel strongly responsible for protecting it. That’s
25. I made the documentary.”
语篇解读:本文是一篇说明文。文章主要介绍了纪录片《航拍中
国》。
语篇解读:本文是一篇说明文。文章主要介绍了纪录片《航拍
中
国》。
目 录
英语·选择性必修第四册(WY)
16. watching 考查动词-ing形式。by是介词,意为“通过”,后接动
词-ing形式,所以此处应填watch的动词-ing形式watching。
17. natural 考查形容词。views 是名词,意为“景色;景观”,前面
需用形容词来修饰,nature 的形容词形式是 natural,意为“自然
的”。
18. first 考查序数词。根据语境,此处表示“第一季”,one是基数
词,这里需用其序数词形式first表示“第一”。
目 录
英语·选择性必修第四册(WY)
19. to finish 考查动词不定式。It takes/took sb some time to do sth是固
定句型,意为 “花费某人一些时间做某事”,所以此处应填动词不定
式 to finish。
20. said 考查固定句型。It’s said that ...是固定句型,意为“据
说……”。
21. the 考查冠词。此处特指新疆的草原,所以用定冠词the修饰。
22. us 考查代词。show是动词,意为“展示”,后接人称代词宾格
作宾语,we的宾格形式是us。
目 录
英语·选择性必修第四册(WY)
23. director 考查名词。根据语境,此处表示“总导演”,direct是动
词,其名词形式director表示“导演”,指余乐,应用单数形式。
24. about 考查固定短语。know about是固定短语,意为“了解”,
此处表示“你对祖国了解得越多,你就越爱他”。
25. why 考查表语从句。空处引导表语从句,从句缺少状语,表示
“……的原因”,应用连接副词why。
目 录
英语·选择性必修第四册(WY)
Ⅲ.读后续写
阅读下面材料,根据其内容和所给段落开头语续写两段,使之构
成一篇完整的短文。
(2025·安徽高二下期末) Wolf! Hank thought. The boy stared
out of the cabin (小木屋) window at the animal. It was sitting a
stone’s throw away in the moonlight. The wolf howling (嚎叫),
Hank shook slightly. For the first time, he felt truly alone in the
mountains.
目 录
英语·选择性必修第四册(WY)
It had felt good to be allowed to come along with Dad. Dad was a
scientist who studied wild animals. Two days ago, they had moved into
an empty cabin. Here, Dad would write a report about what he had
found. But they discovered that dozens and dozens of mice had taken over
the cabin. The little creatures had gotten into the supplies of dried food
and ruined almost everything.
Now, because most of the food was gone, Dad had left to get new
supplies from town and would be staying overnight. Hank had insisted on
staying behind.
目 录
英语·选择性必修第四册(WY)
The wolf howl sounding again, Hank opened the logbook to write
about it, but his hand shook. Dad had never mentioned having any
trouble with wolves. Hank closed the logbook and put it on the table.
Quickly he looked around for something he could use as a weapon just in
case. He grabbed a stick from the fireplace, went to the door, and took
a deep breath.
Then he opened the door, waved the stick, and shouted with all his
might (强大力量): “Go away, wolf. Go away!” Shocked, the
wolf sprang (跳跃) and started running away. Hank closed the door,
目 录
英语·选择性必修第四册(WY)
his heart pounding hard. When he’d caught his breath, he turned back
to the window. Oh, no! There was the wolf sitting right where it had
sat before.
Hank stared at the wolf. The wolf stared right back at him. Hank was
staring into the eyes of a hunter. He knew, like all creatures, the wolf
needed to eat. Hank’s dad had said wolves play their part in the
environment by eating deer, rabbits, and other animals. But maybe,
like the hungry mice that were running about Hank’s feet, wolves go
for any food they can find. Suddenly, Hank heard a squeaky (吱吱叫
的) noise!
目 录
英语·选择性必修第四册(WY)
注意:(1)续写词数应为150个左右;
(2)请按如下格式作答。
Holding his breath, Hank raised his head to see.
目 录
英语·选择性必修第四册(WY)
As the wolf sprang up and tried to catch another mouse, Hank
opened the logbook again.
目 录
英语·选择性必修第四册(WY)
参考范文:
Holding his breath, Hank raised his head to see. He found the
wolf, howling wildly, was chasing some mice in the moonlight.
Letting out squeaky noises, the mice ran about on the grass aimlessly.
Suddenly the hungry wolf sprang up, catching a mouse. Sitting a
stone’s throw away, it ate the mouse it captured. Running about its feet
were dozens of noisy mice. The wolf rose, ready to catch another
mouse. Shocked, Hank turned back to the table for his logbook.
目 录
英语·选择性必修第四册(WY)
As the wolf sprang up and tried to catch another mouse, Hank
opened the logbook again. His heart pounded hard. Grabbing the pen,
Hank quickly wrote what was happening outside the cabin. Another mouse
caught, the wolf swallowed it whole. The hunting over, the wolf ran
away with its stomach filled. Closing the logbook, Hank took a deep
breath, feeling so good. It was the first time that he had stayed alone in
the mountains to study wild animals. That night he stayed awake, eager
to report what he had discovered to his dad.
目 录
英语·选择性必修第四册(WY)
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