资源简介

(共75张PPT)
选择性必修第二册
Unit 5　A delicate world
Ⅰ.识记·阅读词汇
1．heritage n．遗产；传统
2．inhabitant n．栖居的动物
3．vegetation n．植物，草木(总称)
4．immunity n．免疫力
5．substantial adj.大量的，多的
6．postscript n．附言
7．pest n．有害小动物；害虫
语基默写见P593
8．ecology n．生态
9．dissolve v．(使)溶解
10．nutrient n．养分，营养物
11．criterion n．标准，准则
12．prosper v．兴旺，发达
13．altitude n．海拔(高度)
14．elsewhere adv.在别处
15．invasion n．涌入
16．coexist v．共存，共处
Ⅱ.熟记·核心词汇
1．habitat n．栖息地　2.appetite n．胃口，食欲
3．multiply v．(使)大大增加，(使)倍增
4．chaos n．大混乱；紊乱
5．decrease v．(使)变小，(使)减少
6．trap n．夹子，陷阱　7.collapse v．倒坍；塌下
8．incident n．事件
9．owe v．应该做；对……负有……的义务
10．visual adj.视觉的
11．session n．一段时间
12．vast adj.巨大的；广大的
13．variation n．差异；变化
Ⅲ.活用·拓展词汇
1．dramatic adj.显著的，剧烈的→dramatically adv.显著地，剧烈地
2．subsequent adj.随后的→subsequently adv.后来，随后
3．conserve vt. 保护，节约(水、能源等)→conservation n．保护
4．depart vi.离开，出发→departure n. 离开
5．explode v．突然增加；爆炸→explosion n．突增，激增；爆炸→explosive adj.易爆炸的
6．compare v．比较→comparison n．比较
7．mystery n．神秘，神秘的人(或事物)→mysterious adj.神秘的
8．rare adj. 稀有的，罕见的→rarely adv. 很少，难得
9．apparent adj.明显的；显而易见的→apparently adv.据说；看来，似乎
10．greet v．问候，招呼→greeting n．问候，招呼
Ⅳ.牢记·短语词块
1．fail to do未能做……；不能做……
2．in harmony with...与……和谐相处
3．develop an appetite for...对……有兴趣；对……有胃口　
4．be introduced to被引进；介绍给
5．out of control失去控制
6．remove...from...从……移开/去掉……
7．decrease from...to...从……减少到……
8．in consequence结果；因此
9．turn out结果是；生产，制造
10．a substantial number of大量
11．once and for all彻底地
12．every last每一个；全部
13．owe it to...to do做……是……的义务；为……做……是理所当然的事
14．on behalf of代表
15．coexist with...与……共存
Ⅴ.背诵·单元佳句
1．Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seals, existed in perfect harmony with their natural habitat for thousands of years.(否定副词置于句首引起部分倒装)　他们也不难想象出那里的本地居民，包括皇家企鹅、帝企鹅和象海豹，是如何与它们的天然栖息地和谐共存几千年的。
2．It turned out that they developed an immunity to the virus, and their numbers exploded once again.(It turns/turned out that...)　结果这些兔子对病毒产生了免疫力，它们的数量再次激增。
3．This incident made it clear that the rat, mouse and rabbit problem needed solving once and for all.(make＋it＋adj./n.＋that...)　这一事件清楚地表明，大小老鼠和兔子的问题需要得到彻底解决。
Macquarie Island is a UNESCO World Heritage Site. When humans arrived on the island in 1810, they brought rats, cats and rabbits on end. Subsequently, all of them were out of control and damaged the ecology on the island dramatically. Both rats and cats developed an appetite for native birds, making the birds endangered. Rabbits apparently multiplied and caused soil erosion. To remove the rabbits, a virus was released. But the decrease in the number of the rabbits caused cats to eat more native birds. In the 1980s, a substantial number of traps and dogs were used to catch the cats.
In comparison with the departure of the cats, the number of rats and rabbits exploded once again, especially the rabbits, which developed an immunity to the virus. The island was in chaos altogether. I owe it to ourselves to restore the island. So on behalf of the association I am here calling for the conservation of the biological diversity. But this intervention is a long, much-delayed ending to a sad story.
麦考瑞岛是联合国教科文组织世界遗产。当人类在1810年来到岛上时，他们带来了老鼠、猫和兔子。随后，所有这些动物都失去了控制，极大地破坏了岛上的生态环境。老鼠和猫都对本地鸟类产生了食欲，使鸟类濒临灭绝。兔子明显大量繁殖，造成土壤侵蚀。为了减少兔子数量，人类释放了一种病毒。但兔子数量的减少导致猫吃掉了更多的本地鸟类。20 世纪 80 年代，人们使用了大量的陷阱和狗来捕捉猫。相比之下，随着猫的消失，老鼠和兔子的数量再次激增，尤其是兔子，它们对病毒产生了免疫力。岛上一片混乱。我有责任重建这座小岛。因此，我代表协会呼吁保护生物多样性。但这次干预只是一个悲伤故事的漫长而迟来的结局。
[基础词汇]
1.ecosystem n．生态系统
2.natural habitats自然栖息地
3.ecological balance生态平衡
4.tropical storms热带风暴
5.at the mercy of wind and rain任凭风雨摆布
6.extreme weather极端天气
7.leave everything in ruins使一切沦为废墟
[培优词汇]
1.reproduction n．繁殖
2.ecologist n．生态学家
3.uniqueness n．独特性
4.organism n．有机体
5.consumer n．消费者
6.marine life海洋生物
7.food chain食物链
8.soil erosion土壤侵蚀
[拔高词汇]
1.amphibian n．两栖动物
2.botanical adj.植物的
3.oasis n．绿洲
4.circulation n. (气、水等的)环流，循环
5.extinct species灭绝物种
6.carbon emissions 碳排放
7.polar region极地地区
8.be rooted in根植于
话题句型
1.Clear waters and lush mountains are as invaluable as gold and silver. 　绿水青山就是金山银山。
2.Protecting the environment is protecting productive forces. 　保护环境就是保护生产力。
3.Rely on scientific and technological progress to promote environmental protection.
依靠科技进步促进环境保护。
创意课堂 点面突破
PART
01
第一部分
decrease　v.(使)变小，(使)减少　n．减少；降低
[单句语法填空/微写作]
①(人教选必三U3)These chemicals led to severe water quality issues, causing a decrease ___ the number of fish species.
②The temperature decreased from 30 degrees Celsius ___ 20 degrees Celsius overnight.
in
to
③如上图所示，阅读电子书而非纸质书的人数正在减少，这表明人们的阅读偏好正在回归传统的纸质书。
As is stated in the above graph, ________________________________
____________________________________________________, indicating a shift in reading preferences back towards traditional paper books.
the number of people who read e-books rather than paper books is decreasing/on the decrease
(1)decrease (from...) to...　 (从……)减少到……
decrease in... 在……方面下降
decrease by... 减少了……
(2)a decrease in sth. 某方面的减少/下降
on the decrease 正在下降/减少
[佳句背诵] It's a pity that global warming has caused a decrease in the number of wildlife in recent years.
令人遗憾的是，近年来，全球变暖导致了野生动物数量的减少。
[联想发散] decrease的近义词为lessen、 decline；反义词为increase、rise。
trap　n.夹子，陷阱；圈套；困境　v．储存；使困住；使陷入圈套；使陷入困境
[单句语法填空/微写作]
①(译林选必二U1)The fire, which is thought to have started from the 8th floor, spread quickly through the tower block on Sunday night, leaving people on the upper floors ________(trap).
②You may be trapped _____ giving away very important personal information.
trapped
into
③我像冻住的冰一样站在那里，从未想过自己会陷入这样的两难境地，感到无比尴尬和恐慌。
Standing frozen as ice, never had I thought about _________________
______________ that I was flooded with overwhelming awkwardness and panic.[读后续写之情绪描写]
(1)fall into a trap　 　 落入圈套
set/lay a trap for... 为……设下圈套
(2)be trapped in... 困在……中；陷在……中
trap sb. into (doing) sth. 诱使某人(做)某事
being trapped in such
a dilemma
[佳句背诵] (人教选必三U3)When people produce huge amounts of extra greenhouse gases by burning fossil fuels, more heat energy is trapped in the atmosphere and causes Earth's surface temperature to rise quickly.　当人类由于燃烧化石燃料产生大量额外的温室气体时，更多的热能被困在大气中，导致地表温度迅速上升。
owe　v.应该做；对……负有……的义务；欠(账、钱、人情等)；归功于……；应感谢
[单句语法填空/补全句子/微写作]
①(人教选必二U4)You owe ___ to yourselves to stay longer. Overall, Montreal is a city with wonderful sights and sounds.
②(2024·新高考全国卷Ⅰ读后续写)At first, he refused to charge me the fare. But I insisted I __________________________________________
(欠他这笔钱).
it
owed him the money/owed the money to him
③(2022·新高考全国卷Ⅰ读后续写)大卫在终点线气喘吁吁地说道：“正是因为您的鼓励，我才能够克服内心的恐惧，在这次越野赛中挑战自我。”
David was out of breath at the finishing line, saying，“_______________________________________ I can overcome my internal panic to challenge myself in the cross-country run.”[读后续写之情感描写]
It is owing to your encouragement that
(1)owe sb. an apology　 欠某人一个道歉
owe sb. sth.＝owe sth. to sb.欠某人某物
(2)owe...to... 把……归功于……
owe it to...to do 做……是……的义务；
为……做……是理所当然的事
owe it to...that... 多亏……
(3)owing to 因为；由于
[佳句背诵] (1)I owe an apology to you/owe you an apology for failing to go outing with you this Sunday.[应用文写作之道歉信]
我得为本周日不能和你去郊游而向你道歉。
(2)I owe my great progress in English learning to you, so no words are strong enough to express my heartfelt gratitude.[应用文写作之感谢信]
我在英语学习上的巨大进步都归功于您，因此，任何语言都不足以表达我衷心的感谢。
comparison　n.比较
[单句语法填空/语段写作]
①(译林必修一U4)Your friends may post a never-ending series of photos online to show off their beautiful dresses or strong bodies, and it becomes easier for you to compare yourself ________ them.
②(人教选必一U4)In many countries, shaking one's head means “no”， and nodding means “yes”. By ___________(compare), in Bulgaria and southern Albania, the gestures have the opposite meaning.
to/with
comparison
③与过去相比，越来越多的青少年更喜欢在网上学习。相比之下，在线学习的便利性和灵活性是无与伦比的，但青少年显然会面临更多的诱惑。因此，如何成为聪明的在线学习者是非常重要的。
____________________________________________________, more and more teenagers prefer studying online. ________________, convenience and flexibility of online learning is ____________________，but teenagers will apparently face more temptations.So how to be smart online learners is of great significance.
Compared to/with the past/In/By comparison with the past
By comparison
beyond/without compare
(1)in/by comparison with... 与……相比
by comparison 相比而言
(2)compare v．& n. 将……比作……；比较
compare...with... 把……和……相比较
compare...to... 把……比作……；把……和……相比
compared to/with... 与……相比(通常作状语)
beyond/without compare 无与伦比，举世无双
[佳句背诵] After comparing this course with that one，I recommend you to choose Chinese listening and speaking course，which can help you adapt yourself to class as soon as possible.[应用文写作之建议信]
在对比了这门课和那门课之后，我建议你选择中文听说课，这可以帮助你尽快适应课堂。
on behalf of　代表
[单句语法填空/一句多译]
①As is known to us all, red stands ____ happiness and good luck in traditional Chinese culture.
②我很高兴代表我们学校邀请你参加下周的国画展览。
→_______________________________________________, I'm delighted to invite you to the Chinese painting exhibition next week.
→_____________________________________, I'm delighted to invite you to the Chinese painting exhibition next week.[应用文写作之邀请信]
for
On behalf of our school/On our school's behalf
Representing/Standing for our school
(1)on behalf of sb.＝on sb.'s behalf　代表某人
(2)其他表示“代表”的词汇：
stand for 代表；支持，主张；容忍
represent v. 代表；象征
[佳句背诵] How time flies! Two weeks went by, and our exchange activities ended. On behalf of my school, I would like to express our feelings.[应用文写作之感谢信]
时光飞逝！两周过去了，我们的交流活动结束了。我想代表我的学校表达一下我们的感受。
否定副词置于句首引起部分倒装
[教材原句] Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seals, existed in perfect harmony with their natural habitat for thousands of years.　他们也不难想象出那里的本地居民，包括皇家企鹅、帝企鹅和象海豹，是如何与它们的天然栖息地和谐共存几千年的。
[微写作/句式升级]
①(译林选必四U4)我一点也不知道自己即将经历人生中最美好的四年。
______________________________________ experience the best four years of my life.
Little did I know that I was about to
②(2025·八省联考)你不仅能够积极参与博物馆的各项活动，还将获得与其他志同道合的人分享你对艺术的热爱的特别机会。
_______________________________________________ the life of the Museum, but you also will receive special opportunities to share your love of art with other like-minded individuals.
　　
Not only will you be actively participating in
表达否定含义的词(短语)置于句首时，句子要用部分倒装，将情态动词、系动词或助动词提前。
(1)常用的表否定含义的副词：never、 little、rarely、seldom、hardly、scarcely、neither、nor等；
(2)表示“绝不”的介词短语： at no time、by no means、in no case、in no way、on no condition等；
(3)使用部分倒装的固定句型：no sooner...than...、 hardly...when...、 not only...but (also)..．(not only位于句首时)等。
[佳句背诵] (1)Wherever we see someone in pain, never can we turn a blind eye to those in need.[读后续写之主旨升华]
无论我们在哪里看到有人遭受痛苦，我们永远不能对那些需要帮助的人视而不见。
(2)(2023·新高考全国卷Ⅰ读后续写)No sooner had I learned about the exciting news than I froze there，unable to believe my ears. Never had I thought that I would win the first prize in the writing contest.[读后续写之情绪描写]　我一听到这个激动人心的消息，就愣在那里，不敢相信自己的耳朵。我从来没有想到我会在写作比赛中获得第一名。
高效迁移 多维提能
PART
02
第二部分
Ⅰ.单句语法填空
1．(2024·全国甲卷) My childhood is quite happy _________(compare) with hers.
2．(2024·新高考全国卷Ⅰ) I touched down in Vienna just 30 minutes before the __________(depart) of the last bus to Prague.
3．(2023·浙江卷1月)I parked my car outside the farm and walked past a milking house which had ___________(apparent) not been used in many years.
compared
departure
apparently
4．(人教选必三U3) The construction of waste water treatment facilities improved the water quality and water _____________
(conserve).
5．He ____________(trap) in the traffic jam and couldn't arrive at the meeting on time.
6．(北师大必修二U4)People _______(rare) post negative stories or bad pictures on social media, so it can be misleading.
7．(译林选必二U1)I was concerned that the students and the senior residents wouldn't get along easily, but it turned ____ to be the exact opposite.
conservation
was trapped
rarely
out
8．These assemblages, walls, even entire environments create a ___________(mystery), almost awe-inspiring atmosphere.
9．People around the world are becoming more and more concerned about the population __________(explode).
10．The sales of our product decreased from 100 units last month ___ 80 units this month.
mysterious
explosion
to
Ⅱ.熟词生义
1．According to the World Wildlife Fund, the global black rhino population has dropped as low as 5，500, giving the rhinos a “critically endangered” status.__
A
2．At last, a women's magazine exploded the myth that thin equals beautiful.__
B
3．One afternoon, while attempting to get into bed she collapsed from what was eventually discovered to be a heart attack.__
B
Ⅲ.一词多义
trap
(1)Some miners were trapped underground after the collapse, requiring an immediate rescue operation.__
(2)Were you just going to trap her into making the decision without giving her all the necessary information？__
(3)(2023·新高考全国卷Ⅰ)You'll hear these participants' stories and learn what strategies worked well for them, and what traps they encountered that you should avoid.__
B
C
A
主题引领 情境写作
PART
03
第三部分
写作一　Practical Writing——黄山美景如画
安徽黄山(Mount Huang)是世界文化与自然双重遗产，被誉为“天下第一奇山”。请根据下列信息，写一篇短文，简单介绍黄山。内容包括：
1.位于安徽省南部，是中国著名的旅游胜地；
2.在黄山可以领略其云海、松树、温泉、冬雪等秀丽的风景及清晨美丽的日出。
　运用本单元词汇及表达完成句子
1．黄山位于安徽省南部，是世界文化和自然双重遗产。
Mount Huang is located in the south of Anhui Province and it is ___________________________________________．
2．黄山为许多动植物提供了一个很好的自然栖息地。
Mount Huang _______________________________________________
____________________________．
a world cultural and natural heritage site
provides a great natural habitat for a vast number of animals and plants
3．作为中国著名的旅游景点，黄山有它独特的神秘景色，如松树、云海、温泉和冬雪等。
As a well-known tourist attraction in China, Mount Huang ______________________________,such as the pine trees, the sea of clouds, hot springs and the snow of winter.
4．它拥有丰富的自然资源。
It has ______________________________．
5．如果您有兴趣来参观，任何季节都是个好时候。
If you ____________________________, any season is a good time.
has its unique mysterious scenes
substantial natural resources
have an appetite for visiting
　运用语法结构或句型润色提升
6．用过去分词短语作定语改写句1
____________________________________________________________________________________________________
Mount Huang, located in the south of Anhui Province, is a world cultural and natural heritage site.
　运用适当的过渡句或衔接词连句成篇
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
___________________________________________________________
One possible version：
Good morning, everyone! It is a great honour for me to give a lecture about Mount Huang here.
Mount Huang, located in the south of Anhui Province, is a world cultural and natural heritage site. Mount Huang provides a great natural habitat for a vast number of animals and plants. As a well-known tourist attraction in China, Mount Huang has its unique mysterious scenes, such as the pine trees, the sea of clouds, hot springs and the snow of winter. It has substantial natural resources as well. If you have an appetite for visiting, any season is a good time.
Thank you for your attention. Do you have any questions
词汇积累 [环境描写]　habitat; conservation; decrease; collapse; ecology; endangered; chaos; secure; subsequently
[动作描写]　owe; trap; departure; fail to do
写作二　Continuation Writing——单元场景续写之森林游玩体悟
佳句积累 [环境描写]　Strong winds and stormy seas have helped sculpt its long, thin shape. The green grass and bare rock of its landscape contrast dramatically, giving it a wild and natural beauty.
动作描写：看(一)
经典词汇 1.see v．看见
2.watch v．观看
3.view v．把……视为
4.spot v．注意到，发现
亮点词块 1.lock one's eyes on凝视
2.take/cast a glance at...向……看一眼
3.gape at目瞪口呆地看
4.come into view进入视野
5.eyes widen瞪大眼睛
6.peep at/through偷看
7.glance at/around/back/up/down
瞥一眼/环视/回头看/向上看/向下看
8.catch a glimpse of瞥见
9.steal a glance at偷偷瞥一眼
出彩表达 1.I tiptoed forward and glanced back over my shoulder from time to time to make sure that no one was following me.　我踮着脚尖向前走，不时回头看一眼，以确保没有人在跟踪我。
2.Seeing no other people notice me, I placed the Christmas present down, pounded the doorbell and then hid quickly behind a big tree, peeping at the doorway.(现在分词短语作状语)
看到没有人注意到我，我放下圣诞礼物，按了按门铃，然后迅速躲在一棵大树后面，向门口窥视。
出彩表达 3.James came out, glanced around and spotted the box, his eyes widening in surprise.(动词的联动)
詹姆斯走了出来，环顾四周，发现了盒子，他惊讶地睁大了眼睛。
4.Hearing that, I gaped at my mother, with my eyes open in surprise.(with复合结构)
听了这话，我惊讶地瞪大眼睛看着母亲。
5.Watching what my sons had done, I couldn't help exclaiming, “How warm－hearted they are！”(现在分词短语作状语)　看着儿子们所做的一切，我不禁惊呼：“他们真是太热心了！”
[场景导入]　“我”和叔叔去森林里游玩，从叔叔口中，“我”得知这片森林曾经遭到过破坏，颇受震惊。“我”看着今日的动物和绿树感悟出人类要保护野生动物，实现人与自然的和谐相处。
A forest 1.____________________________________(进入视野，我环顾四周), enjoying the surrounding beautiful scenery. My uncle told me, “The habitats of animals as well as the ecology of the area had been destroyed and the forest used to be a wasteland.Later,
came into view and I glanced around
owing to some conservation measures, this forest appeared again.” Hearing that, 2._____________________________________________
(我惊讶地瞪大了眼睛看着叔叔). The deeper we walked, 3.__________________________________________(我们在森林里发现的动物就越多).
I gaped at my uncle, with my eyes open in surprise
the more animals we spotted in the forest
Some animals 4.__________________________________(好奇地盯着我们看) while some just 5._______________________________(偷看我们一眼) timidly. 6.______________________________________________
(看着这些可爱的动物和绿树；现在分词短语作状语), I couldn't help exclaiming, “The way the nature treats us is the same we treat it.To live in harmony with it, we are expected to respect it.”
locked their eyes on us curiously
peeped at/stole a glance at us
Watching these lovely animals and green trees
[选自：选修教材　外研版·选修二(新教材)　UNIT 5 P52]
In the freezing temperatures of Changchun, Huang's long-dormant① ambition burned like a newly kindled② fire. He was now the chief scientist of one of China's deep-Earth exploration programmes, the aim of which③ was similar to installing④ high-tech cameras on aircraft, ships and satellites to enable them to see deep into the Earth's crust⑤. Alongside this, he was also coordinating⑥ several interdisciplinary⑦ research projects and devoting his precious time to training younger scientists. Mentoring⑧ them one-on-one,
he helped them to identify their individual strengths and forge⑨ their own research paths, with more than 40 of his students going onB10 to become primary researchers at their respective institutions. All of this placed Huang under enormous pressure ， but he did not think twice about committing himself. He never asked the question whether he pushed himself too hard, and he was always saying, “Anything my country needs, I will do without complaint.”
①long-dormant adj.长期休眠的
②kindled adj.点燃的
③此处为“the＋名词＋of＋which”引导定语从句
④install v．安装
⑤crust n．地壳
⑥coordinate v．协调
⑦interdisciplinary adj.跨学科的
⑧mentor v．指导
⑨forge v．努力加强；艰苦干成
⑩此处为with复合结构
under enormous pressure
承受巨大的压力　
think twice三思
1．What is the main idea of the passage
A．Huang's journey from being a student to a chief scientist in China's deep-Earth exploration.
B．The challenges faced by scientists working in extreme weather conditions.
C．Huang's dedication and contributions to China's deep-Earth exploration and scientific training.
D．The importance of interdisciplinary research in advancing scientific knowledge.
√
2．What personal qualities does Huang exhibit according to the passage
__________________________________________________________
_______________
Huang exhibits qualities such as determination, ambition, and selflessness.
【识文知意】　在长春寒冷的天气中，黄先生长期潜藏的雄心壮志像新点燃的火焰一样熊熊燃烧。他现在是中国一个深地探测项目的首席科学家，该项目的目的类似于将高科技相机安装在飞机、船舶和卫星上，使它们能够深入观测地壳。与此同时，他还在协调几个跨学科的研究项目，并将宝贵的时间投入培养年轻科学家上。他一对一地指导他们，帮助他们发现自己的个人优势，并开辟自己的研究道路，他的40多名学生后来都成为各自机构的主要研究人员。这一切都给黄先生带来了巨大的压力，但他毫不犹豫地全身心投入。他从不考虑是否把自己逼得太紧，总是说：“只要国家需要，我都会毫无怨言地去做。”

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