高考英语一轮复习选择性必修第二册Unit 5 A delicate world课件

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高考英语一轮复习选择性必修第二册Unit 5 A delicate world课件

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1.   v.繁殖;(使)大大增加,(使)倍增
2. v.(使)变小,(使)减少
3. v.应该做;对……负有……的义务
4. v.倒坍;塌下
5. n.标准,准则
6. v.兴旺,发达
7. adj.巨大的;广大的
8. v.茁壮成长
multiply
decrease
owe
collapse
criterion
prosper
vast
thrive




1.halfway     adj.
2.penguin n.
3.rat n.
4.appetite n.
5.vegetation n.
6.parakeet n.
7.chaos n.
8.virus n.
中间的,半途的
企鹅
大老鼠
胃口,食欲
植物,草木(总称)
长尾(小)鹦鹉
大混乱;紊乱
病毒




9.trap n.
10.immunity n.
11.substantial adj.
12.incident n.
13.postscript   n.
14.pest n.
15.dissolve v.
16.session n.
夹子,陷阱
免疫力
大量的,多的
事件
附言
有害小动物;害虫
(使)溶解
一段时间




17.status n.
18.altitude n.
19.fossil n.
20.floral adj.
21.vertebrate n.
22.beehive n.
23.elsewhere adv.
地位;身份
海拔(高度)
化石
花的
脊椎动物
蜂房,蜂箱
在别处




1. adv.显著地→ adj.引人注目的;戏剧性的
2. n.栖居的动物→ v.居住在;栖居于
3. n.栖息地→ n.居民
4. adv.后来,随后→ adj.随后的,后来的
5. n.侵蚀→ v.侵蚀
6. n.保护 → v.保护;保存
7. n.离开→ v.离开,出发
8. v.突然增加→ n.爆炸,爆发
9. n.干预,介入→ v.干涉,介入
dramatically
dramatic
inhabitant
inhabit
habitat
habitant
subsequently
subsequent
erosion
erode
conservation
conserve
departure
depart
explode
explosion
intervention
intervene




10. n.生态→ adj.生态的,生态学的→
adv.从生态学的观点看
11. n.养分,营养物→ n.营养学;营养→
n.营养学家→ adj.营养的,营养品的→ adv.营养学上;营养地
12. n.比较→ v.比较,对比
13. adj.视觉的→ adv.视觉地
14. adj.用香(药)草制成的→ n.药草;香草
15. adj.神秘的→ n.神秘之事;神秘
ecology
ecological
ecologically
nutrient
nutrition
nutritionist
nutritional
nutritionally
comparison
compare
visual
visually
herbal
herb
mysterious
mystery




16. adj.稀有的,罕见的→ adv.很少地,罕有地
17. adj.生物的,与生物有关的→ adv.生物学地→
n.生物学→ n.生物学家
18. adv.据说;看来,似乎→ adj.显然的,表面上的
19. n.差异;变化→ adj.多种多样的,不同的→ v.变化→ adj.各种各样的,不同的→ n.种类;变化
20. adj.濒临灭绝的→ v.危及,使遭到危险→
n.危险→ adj.危险的→ adv.危险地
rare
rarely
biological
biologically
biology
biologist
apparently
apparent
variation
varied
vary
various
variety
endangered
endanger
danger
dangerous
dangerously




21. n.涌入→ v.侵略;涌入→ n.侵略者
22. v.共存,共处→ n.共存,共处→ adj.共存的
23. adj.稳固的;安全的→ n.安全→ n.不安全
24. n.问候,招呼→ v.欢迎;致敬
invasion
invade
invader
coexist
coexistence
coexistent
secure
security
insecurity
greeting
greet




1.      未能做某事
2. 与……和谐共处
3. 对……产生食欲
4. 依次,轮流;反过来
5. 灭亡,灭绝
6. 失去控制
7. 想出;提出
8. 把……从……移走
fail to do sth
in harmony with
develop an appetite for
in turn
die out
out of control
come up with
remove...from...




9. 从……减少到……
10. 因此,所以
11.       结果是;证明是
12. 彻底,一劳永逸地
13. 所有;全部
14. 应该为某人做某事
decrease from...to...
in consequence
turn out
once and for all
every last
owe it to sb to do sth




15. 捕食;掠取
16. 代表
17. 以……命名
18. 与……共存
19. 作为回报
prey on
on behalf of
be named after
coexist with
in return




1.这座岛是联合国教科文组织确立的世界遗产,游客们都认为它名副其实。(it作形式宾语)
No visitor would the island is a UNESCO World Heritage Site.
2.他们也不难想象出,数千年来,包括帝企鹅、王企鹅和象海豹在内的当地动物是如何与其自然栖息地完美地和谐共存的。(部分倒装)
how its native inhabitants,including royal penguins,king penguins,and elephant seals,existed in perfect harmony with their natural habitat for thousands of years.
think it surprising that
Nor would they fail to imagine




3.是因为它拥有像绿色海洋般广袤的森林吗 (强调句型)
stretch on and on like great green seas
4.该地区的海拔从大约400米上升到3 000多米,被称为“华中屋脊”。
(现在分词短语作结果状语)
The region rises from about 400 metres to over 3,000 metres above sea level, the “Roof of Central China”.
Is it its forests that
giving it the name




5.虽然在中国的其他地区,由于外来物种入侵,这种蜜蜂濒临灭绝,但是神农架的人和这种蜜蜂已经共存了几个世纪。(状语从句的省略)
due to the invasion of foreign species,the bees of Shennongjia have coexisted with the local people for centuries.
Although endangered elsewhere in China
表示“人”的后缀“-ist”集锦:
①art → artist艺术家      
②science→scientist科学家    
③biology→biologist生物学家
④physics→physicist物理学家
⑤journal→journalist记者
⑥piano→ pianist钢琴家
⑦violin→violinist小提琴家
⑧social→ socialist社会主义者
⑨optimism→optimist乐观主义者
⑩tour→tourist游客
cycle→cyclist骑行者
economy→economist经济学家
Step 1 单元知识解构
1.decrease v.(使)变小,(使)减少;降低 n.减少,降低
归纳拓展
本学期我们班的学生人数从30人减少到25人。也就是说,学生的数量减少了5人。学生们对课外活动的总体参与热情也有所下降。特别是对体育的兴趣,在我们的学生群体中似乎正在下降。
The number of students in our class 30 25 this semester.
That is to say,it five.Students’ overall participation in after-class activities also showed enthusiasm.Interest in sports,in particular,seemed to be among our student body.
decreased from
to
decreased by
a decrease in
on the decrease
2.owe v.应该做;对……负有……的义务;欠;归因于
归纳拓展
①[致歉信]本周日我不能和你去郊游,我得向你道歉。
I for failing to go outing with you this Sunday.
②[动作/语言描写]在山顶上,莉莉上气不接下气地说:“多亏了你的鼓励,我才能坚持下来,欣赏到这迷人的景色。”
Out of breath at the top of the mountain,Lily said,“It is
that I can stick to it and enjoy the fascinating scenery.”
owe you an apology/owe an apology to you
owing to your
encouragement
③[人物描写]他把自己的巨大成就都归功于大家的帮助,这彰显了他谦虚的品质。
→He ,which showed his modesty. (owe sth to sth)
→He
,which showed his modesty. (owe it to sth that...)
owed his great achievements to the assistance of everyone
owed it to the assistance of everyone that he had obtained great
achievements
3.comparison n.比较;相比
归纳拓展
①[演讲稿]老师经常因为他们对教育事业的奉献而被比作蜡烛。
Teachers because of their devotion to education.
②[人物介绍]他对医学领域的贡献无与伦比,其开创性的治疗方法挽救了无数生命。
His contribution to the field of medicine is , having saved countless lives through his innovative treatments.
are often compared to candles
beyond/without compare
③[演讲稿]与传统购物相比,网络购物具有更多与众不同的功能,非常适合年轻人的口味。
, online shopping has more distinguishing features, which quite fit the young generations’ tastes.
By/In comparison with/Compared with/to traditional shopping
4.out of control 失去控制;无法管理
归纳拓展
①消防队员们勇敢地进入着火的大楼,以控制局势。他们迅速采取行动,确保火势得到了控制。
The firefighters bravely entered the burning building to the situation.They acted quickly to make sure the fire was .
②[情绪描写]她恢复了镇静,控制住了自己的情绪,而不是被恐惧所控制。
She regained her calmness,and was her emotions instead of being her fears.
take control of
under control
in control of
in the control of
③[演讲稿]由于人类活动,大自然失去了对该岛上兔子数量的控制,导致生态遭到破坏。
→Because of human activities, nature
on the island, destroying the ecology.
→Because of human activities, the population of rabbits on the island was
, destroying the ecology.
lost control of the population of
rabbits
beyond control/out of control
5.it 作形式宾语
归纳拓展
[教材原句]No visitor would think it surprising that the island is a UNESCO World Heritage Site.
这座岛是联合国教科文组织确立的世界遗产,游客们都认为它名副其实。
①[场景描写]浓烟使他看不见任何东西,灼伤了他的眼睛,并使他无法呼吸。
The thick smoke prevented him from seeing anything, burned his eyes, and
.
②[建议信]如果你能考虑我的建议我将感激不尽,我的确希望你们的报纸将会对环境保护有所影响。
you could take my tips into account and I do hope that your paper will make a difference to environmental protection.
made it impossible to breathe
I’d appreciate it if
③你可以相信,我们会做好一切必要准备的。
You may we’ll make all the necessary preparations.
④我们不要想当然地认为父母能提供我们所需要的一切。
We shouldn’t parents can give us everything we need.
depend on it that
take it for granted that
当不定式(短语)、动名词(短语)或从句在某个句子中作宾语时,为保持句子结构平衡,避免句式结构混乱,常用it作形式宾语,而将真正的宾语放在句尾。此时it仍只起先行引导作用,本身无词义。
温馨提示
6.部分倒装
归纳拓展
[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,数千年来,包括帝企鹅、王企鹅和象海豹在内的当地动物是如何与其自然栖息地完美地和谐共存的。
①[演讲稿]共享经济不仅给我们带来了便利,也节约了资源,保护了环境。
us convenience but also saves resources and protects the environment.
Not only does the sharing economy bring
②[情绪描写]我以前从未见过如此美丽的日落,以至于我陶醉其中。
such a beautiful sunset before that I was completely absorbed in it.
③[演讲稿]我很自豪能和父母一起分担家务,这也表明我已经长大了。
that I shared housework with my parents, which also showed I had grown up.
Never had I seen
So proud did I feel
Step 2 长难句分析
[教材原句] ①Loose on the island,they did ②what rabbits do best—③they multiplied rapidly and began eating the native vegetation and digging holes,④which caused soil erosion.
尝试分析:此句为主从复合句。句中they did是句子主干,其中①为形容词短语作 ,②为what引导的 从句,充当动词did的 ,③为 ,解释说明what rabbits do best,④为which引导的 从句,修饰前面整个句子。
状语
宾语
宾语
同位语
非限制性定语
自主翻译:
情境仿写:既紧张又兴奋,小女孩表达了自己的期望——她将参加英语演讲比赛,这将有助于提高她的英语水平。
,the little girl expressed — she would take part in the English speech contest,
.
由于在岛上放任其生存,兔子做了自己最擅长的事——它们飞快
地繁殖,开始吃当地植被并挖洞,造成了土壤侵蚀。
Nervous yet excited
what she expected
which would help enhance
her English
Step 1 一词多义& 熟词生义
1.trap
A.n.陷阱       B.v.使困住
C.n.圈套;诡计 D.v.诱骗
①Some people were trapped by the flood.   
②The only thing the wolf could do was to climb up to the ground from the trap.   
③Were you just going to trap her into making the decision    
B
A
D
2.explode
A.v.突然增加  B.v.大发雷霆
C.v.推翻 D.v.(使)爆炸
①Suddenly Charles exploded with rage.   
②The population explodes to 40,000 during the tourist season.   
③There was a huge bang as if someone had exploded a rocket outside.
   
B
A
D
3.写出下列句中黑体词的含义
①(2025·新课标Ⅰ卷)Crucially,this process relies on the water containing enough calcium carbonate (碳酸钙) to trap the plastics.
②(2024·全国甲卷)If I wanted an ending I couldn’t guess,I’d pick up a mystery.
v.捕获;收集
n.悬疑小说
③(2023·新课标Ⅰ卷)To eat one,you have to decide whether to bite a small hole in it first,releasing the stream and risking a spill (溢出), or to put the whole dumpling in your mouth,letting the hot soup explode on your tongue.
④(2023·新课标Ⅰ卷)The dumplings arrive steaming and dangerously hot.
v.溢出,溅洒
adv.非常,很
Step 2 单句语法填空
1.(2024·新课标Ⅰ卷)Habitat Restoration Team volunteers play a vital role in restoring sensitive resources and protecting (endanger) species across the ridges and valleys.
2.(2023·全国甲卷)Both efforts were overturned due to lawsuits from
(conserve) groups.
3.The building makes a tremendous (visually) impact.
4. (compare) to the traditional way, they reduce water consumption significantly.
endangered
conservation
visual
Compared
5.Of 29 patients evaluated,nearly three-quarters reported that their pain had decreased at least 30 percent.
6.We owe it our children to provide them with material written specially for them.
7.Dieting and exercising can bring your weight control but you must stick to your plan with perseverance.
8. behalf of the Students’ Union,I’m writing to invite you to give us a speech on Chinese history.
by
to
under
On
9.When a species goes extinct, it (dramatic) changes the landscape of biodiversity.
10.The ship sank in (mystery) circumstances.
dramatically
mysterious
Step 3 微写作
[情境导入] 演讲稿—人与动植物—如何保护野生动物
假设你是李华。近年来,环境受到污染,大量森林植被遭到砍伐,野生动物数量锐减,濒临灭绝。请你以“Environmental Protection”为题写一篇英语文章呼吁人们保护环境。
[场景演练]
1.众所周知,近年来全球生态遭受了严重破坏。(ecology)
As we all know, in recent years global ecology has suffered severe damage.
2.大片森林被砍伐。这破坏了野生动物的栖息地,使它们无家可归。 (habitat)
Vast forests have been cut down. This destroys the natural habitats of wild animals and leaves them nowhere to live.
3.野生动物种群数量急剧减少,许多濒危物种面临灭绝。(endangered;die out)
The population of wildlife has decreased sharply, and many endangered species have faced dying out.
4.因此,现在是我们采取以下有效措施保护环境的时候了。(in consequence; conserve)
In consequence, it is time for us to take following effective measures to conserve the environment.
5.首先,我们应该倡导植树造林,建立自然保护区以保护野生动物。
First of all, we should advocate tree planting and build nature reserves to protect wildlife.
6.其次,为了与自然和谐共存,政府应制定污染标准以减少环境污染。(in harmony with)
Secondly, in order to be in harmony with nature, the government should formulate pollution criteria to reduce environmental pollution.
7.此外,学校应制定计划,提高学生的环保意识。(come up with)
Additionally, schools should come up with plans to raise students’ awareness of environmental protection.
8.通过为保护环境做出贡献,我们才能与大自然共存。(coexist with)
By making contributions towards protecting the environment,we can coexist with nature.
[句式升级]
1.将第2句用定语从句和现在分词作状语进行改写升级。
Vast forests have been cut down, which destroys the natural habitats of wild animals, leaving them nowhere to live.
2.将第3句用with复合结构进行改写升级。
The population of wildlife has decreased sharply, with many endangered species facing dying out.
3.将第8句用倒装句式进行改写升级。
Only by making contributions towards protecting the environment can we coexist with nature.
[连句成篇]
Environmental Protection
  As we all know, in recent years global ecology has suffered severe damage. Vast forests have been cut down, which destroys the natural habitats of wild animals, leaving them nowhere to live. The population of wildlife has decreased sharply, with many endangered species facing dying out.
  In consequence,it is time for us to take following effective measures to conserve the environment. First of all, we should advocate tree planting and build nature reserves to protect wildlife. Secondly, in order to be in harmony with nature, the government should formulate pollution criteria to reduce environmental pollution. Additionally, schools should come up with plans to raise students’ awareness of environmental protection.
  Only by making contributions towards protecting the environment can we coexist with nature.
  “我真的不会游泳!每个人都会嘲笑我的!”她心想,羞愧得无地自容。Devi把毛巾披在肩上缩成一团,尴尬得不敢看其他人的优秀表现。然后到Devi试跳了。Devi环顾四周,发现她的教练在泳池对面和孩子们在一起。孩子们像鱼儿跳入大海一样跳进水里。她惊讶地看着,感到耳朵发红。此时,一个小女孩走过,让她不要害怕,她的脸颊很快就泛起了尴尬的红晕。她尴尬地垂下了头。
  “I really can’t swim! Everyone’s going to laugh at me!” she thought to herself and ①wanted to curl up and die.
  Devi huddled with a towel over her shoulders, and she was ②too awkward to see others’ excellent performance.
Then came the time for Devi to have a try.Scanning around, Devi spotted her instructor across the pool, together with the kids.
The kids jumped into the water like fish leaping into the ocean.She watched in amazement, ③feeling her ears going red.
At the moment, a little girl passed by and asked her not to be scared, then ④a flush of embarrassment soon crept to her cheeks.
  She hung her head ⑤in embarrassment.

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