新外研版英语选择性必修二Unit 5 A delicate world 单元重点小结
Unit 5 知识点讲义外研版高中英语选择性必修第二册
选修二unit5 a delicate world第一篇大课文p50-51MACQUARIE ISLAND: from chaos to conservation1.in chaos 混乱，乌烟瘴气cause total chaos 导致一片混乱The battlefield was in chaos after the terrible battle.经过激烈的战斗，边界的战场一片混乱。
2.give up halfway 半途而废3.dramatically low 显著的低4.fail to do 未做成5.in harmony with与----协调一致6.live in harmony with nature 与大自然和谐相处7.rain dogs and rats 下倾盆大雨8.take over接管，接替，接任9.develop an appetite for 对---产生食欲have an appetite for对---胃口打开have a good/healthy appetite胃口好10.be introduced to被引进introduce oneself自我介绍11.the number of+n.pl +谓语动词单数 a number of+n.pl +谓语动词复数12.in turn 依次轮流13.lead to 导致14.be native to 原产于15.die out 灭绝multiply大大增加，倍增，使繁殖multiply ----by---- ----乘以----multiply 3 by 5 3乘以516.out of control失去控制in control 在控制中beyond control 无法控制，under control被控制住lose control of 失去对---的控制e up with 想出18.While the cat’s away, the mice will play.山中无老虎，猴子称大王19.remove----from----把---从---移走，赶走remove熟词生义：摘掉帽子，脱掉衣服20.with----in mind 考虑到某人某事keep sth in mind记住20.decrease from ----to--- 从----减少到decrease by 减少了decrease to 减少到on the decrease 在减少21.turn back to 把---重新转向22.be trapped in=be caught in=be stuck in get trapped 被困trap sb into doing sth 使某人中计23.turn out to be It turns out that 结果是，证明是24.immunity n.免疫力Immune adj. 免疫的be immune to 对---免疫immune system 免疫系统25.need doing need to be done ,need to doThe flowers need watering=the flowers need to be watered.I need to water the flowers.26.explode突然增加，爆炸，突然爆发explosion n. 激增27.once and for all 彻底的，一劳永逸的28.participate in =take part in 参加e in 参与，加入30.every last =every single每一个，全部every last word 每一个字evey last minute每分钟31.much-delayed延期已久的32.owe it to---to do应当为----做----owe sth to sb=owe sb sth 欠某人某物owing to由于owe sb a favour欠某人一个情owe sb an apology欠某人一个道歉rm sb of sth 告知某人某事类似的结构：warn sb of sth 警告某人某事convince sb of sth 使某人确信，信服cure sb of sth 治愈某人rob sb of sth 抢劫某人某物rid sb of sth使某人摆脱某事accuse sb of sth 指控某人犯有---罪remind sb of sth 使某人想起某事suspect sb of sth怀疑某人某事语法知识点：否定词置于句首引起的倒装：教材例句：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的动物是如何与其自然栖息地完美和谐共存的。
新外研社高中英语选修二Unit5A delicate world-DevelopingIdeas课件
Learning to learn
The lecture is one of the oldest teaching methods, and is still widely used today. A typical lecture often starts with addressing the topic directly. Data, examples and comparisons are then used to support the main ideas. Both verbal（口头的） and visual information is used in order to maintain the audience’s interest. The end of a lecture is often followed by a short question-and-answer session（问答环节）.
Para. 3: UNESCO awarded Shennongjia this status because it meets two criteria required by the list. It contains a naturally-balanced environment that allows the many and various species to live and prosper. It is also one of the rare locations in the world where scientists can observe in real time the ecological and biological processes that occur as the plants and animals develop and evolve.
新高考英语外研版一轮课件：教材知识解读 Unit 5 A delicate world
核 6. _d_e_cr_e_a_s_e_ v. (使)变小，(使)减少 心 7. _tr_a_p_ n. 夹子，陷阱 单 8. _c_o_ll_a_p_se__ v. 倒坍；塌下 词 9. _in_c_i_d_e_n_t_ n. 事件
15. _a_p_p_ar_e_n_t_ly__ adv. 据说；看来，似乎
[语境运用]根据汉语提示写出单词
1. (2020·新高考全国卷Ⅰ)And contrary to existing research that 核
says you should avoid eating with heavier people who order large 心
thousands of years.
_l_i_k_e_h_i_s _fi_l_m_s___.
02 关键能力·素养探究
1. decrease v. (使)变小，(使)减少 n. 减少，降低；减少量 (1)decrease in... 在……(方面)降低/减少 decrease to... 减少到…… decrease by 减少了…… decrease from... to... 从……减少/降低到…… (2)on the decrease 正在减少
6. _d_ie__o_u_t_ 灭绝 7. _o_u_t_o_f_c_o_n_t_ro_l___ 失控 8. _o_n_b_e_h_a_l_f_o_f__ 代表 9. _in__r_et_u_r_n__ 作为回报
高频短语
短语应用 [语境运用 1]填入一个适当的词 1. The doctor has given me so much help that I really want to do something for him _in_ return. 2. If we don't take steps, the antelopes and pandas will die o_u_t_ one day. 3. On behalf _o_f everyone here, I wish you a pleasant journey back to your country. 4. It is said that the bus went out _o_f control and ran into a truck.
新教材 外研版高中英语选择性必修第二册 Unit5 A delicate world 精品教学课件
Nature, to be commanded, must be obeyed. 欲驾驭自然必先顺之。
—Francis Bacon ——弗朗西斯·培根
We won't have a society if we destroy the environment. —Margaret Mead
如果我们毁坏了环境，社会也就不复存在。 ——玛格丽特·米德
3．The panda's natural _h_a_b_it_at__ is the bamboo forest. 4．He suffered from headaches and loss of _a_p_p_et_it_e__． 5．My father's life work was devoted to the _c_o_n_s_e_rv_a_t_io_n__ of the Longleat estate. 6．Do not fall into this _tr_a_p_．
在__岛__上__自__由__自__在__，它__们__尽__其__所__能__——迅速繁殖，开始吃当地的 植被并挖洞，造__成__水__土__流__失__。
4 ． The cats in consequence turned their attention—and their stomachs—back to the native birds, killing up to 60，000 each year.
[探索发现] 1．Find out what was Nauru like before the Europeans came. __B_e_a_u_t_if_u_l._____________________________________ 2．Find out what caused the ecological disaster in Nauru. __O_v_e_r_m_i_n_in_g_.___________________________________ 3．Find out the cause of Nauru's financial problem. _I_ts__le_a_d_e_r_s _m_i_s_u_se_d__th_e__m_o_n_e_y_._____________________
Unit 5词汇外研版英语选择性必修第二册
Unit 5 A delicate worlddramatic adj1 巨大而突然的，急剧的dramatic change/shift/improvement✧Computers have brought dramatic changes to the workplace.电脑给职场带来了巨大的变化。
dramatic increase/rise/fall/drop/reduction etc✧Universities have suffered a dramatic drop in student numbers.大学里学生的数量急剧减少dramatic effect/results✧ A serious accident can have a dramatic effect on your family’s finances.一次严重的以外事故可能会突然给家庭经济情况带来巨大的影响。
2 激动人心的；给人深刻印象的✧ A superb goal by Owen earned United a dramatic victory yesterday.昨天欧文的一个超级入球联队赢得了激动人心的胜利。
✧Some of the most dramatic events in American history happened here.美国历史上一些最震撼人心的事件发生在这里。
✧the dramatic scenery of the Grand Canyon大峡谷的壮丽景致3 表演的；戏剧的✧the amateur dramatic society业余剧团✧the dramatic arts戏剧艺术4 引人注目的，给人深刻印象的✧She needed a stunning dress to help her make a dramatic entrance.她需要一件能让她在登场时大出风头的惊艳礼服。
✧Tristan threw up his hands in a dramatic gesture.特里斯坦夸张地把双手向上一甩。
外研版选择性必修二Unit 5 A delicate world Part Ⅰ
But the island’s more recent history tells a different story.It’s a tragic story (4) that began in 1810 when humans arrived on the island.In their ships they unknowingly brought rats and mice.These small animals quickly took over the island，(5)eating the birds’ eggs and attacking baby birds.Cats were brought to the island to control the rats and mice.Unfortunately，the cats subsequently developed an appetite for the birds，too.
Unit 5 A delicate world
导读：《Born To Try》是一首由著名歌手黛尔塔·古德莱姆演唱的歌曲，于2003年9 月发行。黛尔塔·古德莱姆，1984年11月9日出生于悉尼的歌手、演员。13岁时，她 录制了一张Demo，并将它寄给了悉尼天鹅。之后，被转交给一位经纪人。发现黛 尔塔有歌手的潜力之后，经纪人将她纳入 Empire Records 之下。
Be wrong or right Sometimes you’ve got to sacrifice the things you like
But I was born to try No point in talking what you should have been And ③___re_g_r_e_tt_in_g___ the things that went on
新外研社高中英语选修二Unit5ADelicateWorldUnderstandingIdeas课件
A virus was released onto the island.
Traps and dogs were used.
C. I participated in a programme to tackle this very problem.
D. Native inhabitants on Macquarie Island were once in perfect harmony with their natural habitat.
A. The rabbit problem resulted in parakeets' dying out.
B. The rat, mouse and rabbit problem made people realise that problems should be solved once and for all.
___________ and ________ contrast ___________
a _________ and ________ beauty
________ and _______ penguins, _________
and _________
Australia
Antarctica
Pacific Ocean
新外研社高中英语选择性必修二Unit 5 A delicate world
Starting Out&Understanding Ideas
Starting Out
新教材外研版选择性必修第二册UNIT5 A delicate world 2022新高考一轮复习课件
[小话题写作]
(3)活火山随时都有可能爆发。
An active volcano may explode at any time
.
考点必记
explode with anger勃然大怒
explosion n.爆炸(声)
[名师点津]
(1)explode的基本含义是“爆炸”,主要指炸弹、油箱、锅炉等的内部能量突然释
[完成句子]
(4)自去年以来,我们的问题成倍增加。
Our problems have multiplied
since last year.
考点必记 multiply A by B |multiply A and B (together) A乘以B multiplicity n.多种多样,多样性 multiple adj.数量多的,多种多样的 [名师点津] 1.multiply的基本意思是“增加”,主要指通过自然繁殖而增加数量,也指同类 事物在数量上无限制的重复增加。用于数学,可表示“相乘”。 2.multiply既可用作及物动词,也可用作不及物动词。
放;引申为“迅速扩大,激增”。也可用来指人“勃然大怒”“破除”等。作“破除”讲
时,其宾语多为理论、信念等抽象名词。
(2)explode既可作及物动词,也可作不及物动词。
6.owe v.应该做;对……负有……的义务 [教材原句]This intervention is a long,much-delayed ending to a sad story,but we humans owe it to the island to give it a happy ending.(P51)这种干预需要 耽搁很久才能结束这个悲剧故事,但是我们人类有责任给这个岛屿一个美 好的结局。
2025届高考英语一轮总复习教材知识复习Unit5Adelicateworld外研版选择性必修第二册
3.owe v.应该做;对……负有……的义务;欠(钱、账、人情等);归功于;应感 谢
【练会】单句语法填空/写出句中owe的词性和词义
①Owing to
the long summer vacation,I can enjoy myself
completely.
锻炼
②He owes his good health to his regular workout. v.把……归功于 ③I anticipated that he must owe his boss a lot of money. v.欠钱
adj.稀有的,罕见的→ rarely
adv.难得,罕有地
8. danger
n.危险→ endangered adj.濒临灭绝的→ endanger vt.
危及,使遭到危险→ dangerous adj.危险的
9. secure
adj.稳固的;安全的→ security n.安全,安全性,保证
10. greet
6.Some natural mysteries of the ancient times are still mysterious to
people today.(mystery)
7.This kind of flower is rare ,and rarely do I see it.(rare)
4.He drove so fast that I really felt my life was in danger
.So I told
him driving fast was dangerous and if he didn’t slow down,he would
endanger our lives.(danger)
外研版(2023)选择性必修 第二册Unit 5 A delicate world Using la
外研版（2023）选择性必修第二册Unit 5 A delicate world Using language课时分层练（含答案）Unit 5 A delicate world Using language—2023-2024学年高二英语外研版（2023）选择性必修第二册课时分层练【夯实基础】知识点1固定搭配1. Parents often find it difficult _______(win) their children's trust and they always forget how they themselves felt when young.2. This time the island has been transformed _____ a Disney-like theme park where dinosaurs are the biggest attraction.知识点2过去分词3. If no drainage system exists, the water table rises, bringing _____(dissolve) salts to the surface.知识点3连接代词4. Susan made it clear to me ________ she wished to make a new life for herself.知识点4非人称代词5. New technologies have made _______ possible to turn out new products faster and at a lower cost.6. I suppose there is no need to talk about this problem with them at once.___________________________________________________________ ________________7. We all thought whether we could raise enough money for the project was a question.___________________________________________________________ ________________8. Because of news services, newspapers possibly offer their readers news from around the world.___________________________________________________________ ________________9. Sometimes he found to fall asleep at night was very hard, so he went to see the doctor.___________________________________________________________ ________________10. When you were watching your favorite TV program and someone came into the room and just shut it off without asking you, how would you like___________________________________________________________ __________________________AAustralia is no stranger to wildfires. The country's weather patterns create heat and dryness, which fuel occasional bushfires in a natural cycle. However, one that started in September, 2023 continues to bum, and it may not be natural at all. So far, the fire has burned 7.3 million hectares (73,000 square kilometers) of land, killing at least 28 people and destroying more than 3,000 homes in the process, reported The Telegraph. Scientists say that man-made climate change has played a role in the fire's creation and duration."What we have are fires that might have occurred anyway," Peter Gleick, a US climate scientist, told Time. "But the extent, the severity and the intensity of these fires are far worse than them otherwise would have been without the fingerprints of climate change."According to Australia's Bureau of Meteorology, the country's temperatures have risen by more than one degree Celsius since 1920. The spring of 2023 was Australia's driest in 120 years. In December, the country saw its hottest day ever, with an average temperature of 41.9 "Due to enhanced evaporation in warmer temperatures, the vegetation and the soils dry out more quickly," Stefan Rahmstorf, a lead author of the United Nations' Intergovernmental Panel on Climate Change's Fourth Assessment Report, told Time.Worse still, researchers at the UK Bureau of Meteorology believe that wildfires like this might become "normal conditions" in the future, according to the BBC. They looked at 57 research papers published since 2023, which examined the relationship between climate change and the risk of wildfires. They found that the link between the two had already been observed in many parts of the world, including the western US, Canada, southern Europe, and even Scandinavia and Siberia."These are impacts we are seeing for one degree of global climate change. The impact will get worse if we don't do what it takes to stabilize the world's climate," Corinne Le Quere, a professor from the University of East Anglia in the UK, told the BBC. ''What we are seeing in Australia is not the 'new normal'. It's a transition to worse impacts."1. What do we know about the bushfire that started in September, 2023 in AustraliaA. It has done a lot of harm to people's living environment.B. It followed the laws of nature.C. It was soon under control.D. It was started on purpose.2. What did researchers at the UK Bureau of Meteorology learn from the57 research papers mentioned in the articleA. How human activities cause climate change.B. Where deadly wildfires happen more often.C. Whether climate change brings more wildfires.D. Why climate change has drawn international attention.3. What did Quere tell people in the last paragraphA. The future of Australia.B. Solutions to climate change.C. The effects of wildfires.D. The urgency of fighting climate change.BAt an outdoor restaurant, a cockroach (蟑螂) flew in and landed on a woman. She started screaming out of fear; with a panic-stricken face and trembling voice, she started jumping, with both her hands desperately trying to get rid of the cockroach. Her reaction was spreading, as everyone in her group also got into a panic. The woman finally managed to flick the cockroach away but it landed on a man in the group who continued the drama. In the relay (接力赛)of throwing, the cockroach next fell upon a waitress who had rushed to their rescue.The waitress stood firm, calmed herself and observed the behavior of the cockroach on her blouse. When she was confident enough, she grabbed it and threw it out of the restaurant.Sipping my coffee and watching the amusement, I started wondering; was the cockroach responsible for their funny behavior If so, then why was the waitress not disturbed She handled the situation to near perfection, without panic.It was not the cockroach, but the inability of the customers tohandle the disturbance caused by the cockroach that disturbed them. I realized that it was not the shouting of my children or my boss or my wife, but my inability to handle the disturbances caused by their shouting that disturbed me.It's not the traffic jams on the road that disturb me, but my inability to handle the disturbance caused by the traffic jams. More than the problem, it's my reaction to the problem that creates chaos in my life.I understood. I should not react in life. I should always respond. The customers reacted, while the waitress responded. Reactions are always instinctive(本能的), while responses tend to be well thought out.1. What happened in the outdoor restaurantA.A cockroach was found in a woman's food and then a man found the same problem.B.A cockroach appearing in the restaurant caused a state of panic among the customers.C. The waitress had to apologize to the customers for a cockroach.D.A woman and a man were trying to rescue the waitress from the cockroach.2. What's the meaning of the underlined word in Paragraph 5A. Disturbance.B. Success.C. Frustration.D. Harmony.3. According to the passage, if you ran into a traffic jam, you might as well _________.A. complain your delayB. feel upset and annoyedC. relax yourself by listening to musicD. expect someone to clear the road right away4.What does the passage tell usA. Speak less, do more!B. Actions speak louder than words!C. Mind your manners while in a restaurant!D. Don't react just from your feelings; respond positively!答案以及解析【夯实基础】1.答案：to win解析：考查find的复合结构,“find it+形容词+to do sth.”为固定句式。
外研版(2023)选择性必修第二册Unit 5 A delicate world Developin
外研版（2023）选择性必修第二册Unit 5 A delicate world Developing ideas课时分层练(含答案）Unit 5 A delicate world Developing ideas—2023-2024学年高二英语外研版（2023）选择性必修第二册课时分层练【夯实基础】知识点1副词的用法1. The driver very _____(rare) wears a raincoat because he spends most of his time in a van.2. I thought she had retired, but _____(apparent) she hasn't.知识点2派生法3. He began to feel sympathy for this slightly _______(mystery) man.知识点3可数名词及其单复数4. The actress described the photographs of her as an _____(invade) of privacy.5. They exchanged _____(greet) and sat down to conceive the future of their company.【提升能力】6.绿水青山就是金山银山。
Clear waters and lush mountains are_____ _____ _____ _____ __________.7.他代表全体教职员工发言。
He spoke _____ _____ _____ all the members of the faculty and staff. 8.有太多的问题需要解决,这个新上任的经理如坐针毡。
With_____ _____ _____ _____ _____, the new manager is on pins and needles.9.我没有想到你会反对这个决定。
外研版高中英语选择性必修第二册 Unit 5 A delicate world 写作指导
What about the rubbish classification in your country?I’m looking forward to your early reply.
Yours, Li Hua
(二)精彩句型 1.我很高兴在这里作报告。 It’s my great pleasure to give a report here. 2.这次报告的目的是…… The aim of this report is to... 3.有几组令人失望的事实和数字。 There are several disappointing facts and figures...
sea levels.
③事实上,每个人做点事情来节约能源和减少温室气体的排放都是容易的。
Actually, it’s easy for everyone to
do something to save
energy and reduce the emission of the greenhouse gas.
(2)句式升级 ④用with复合结构改写句①
With economy developing rapidly
greenhouse gas has been steadily increasing. ⑤用非谓语作状语来合并句②中的两个简单句 It melts the ice caps, raising sea levels
感知文体常识
英文报告 报告是对某一问题展开调查,并对其结果进行客观的分析与总结的一种应 用文体。行文时,要注意知识的科学性,行文的条理性,语言的准确性。报 告一般由标题和正文两大部分构成。标题分话题(subject)和报告日期 (date)。根据报告要求,话题可以是各种各样的,如Environmental pollution(in China or around the world)(中国或世界的)环境污染;Endangered animals (in China or around the worldБайду номын сангаас(中国或世界的)濒危动物;Global warming 全球变暖;Environmental disasters环境灾害等。
Unit5 A delicate world Review 高中英语新教材(外研版选择性必修第二册)
✭词汇三 owe v.欠（帐） 应该做；负有义务
◆教材原句 but we humans owe it to the island to give it a happy ending. 但我们人 类有愧于这个岛屿，应该给它一个幸福的结局。
◆要点必记 owe sth to sb = owe sb sth owe it to sb that-clause owe it to sb to do sth owe sb a favour owing to...
✭词汇一 appetite n. 食欲，胃口，爱好，欲望
◆教材原句 Unfortunately, the cats subsquently developed an appetite for the birds,too. 不幸的是，猫科动物后来也对鸟类产生了食欲。
◆要点必记
develop/ create/arouse an appetite for 对…产生欲望;
◆要点必记
multiply vi.
（快速）繁殖
multiply...by...
...乘以...
multiplies the risk of... 大大增加......风险
◆考点呈现
1. Three ___m_u_lt_ip_l_ie_d__ (multiply) by four makes twelve.
1. on behalf of 2. owe... to... 3. remove...from... 4. in consequence 5. turn out 6. break down 7. take in
单元重点短语
8. in return 9. add...to... 10. strench on and on 11. be renowned for 12. coexist with 13. prey on 14.petite
高中英语Unit5Adelicateworld教学知识细解码教师用书外研版选择性必修第二册
Unit 5 A delicate world1．drama n．戏剧，戏剧艺术→dramatic adj.巨大的；引人注目的;给人印象深刻的→dramatically adv.显著地;戏剧性地2．subsequent adj。
随后的；后来的→subsequence n．随后发生的事,后果→subsequently adv。
后来，随后3．multiply v．(使)大大增加,（使）倍增→multiplication n．乘；增加4．explode v．突然增加；爆炸；突然发生→explosion n．爆炸;猛增5．ecology n．生态；生态学→ecological adj。
生态的；生态学的6．compare v．比较；对比;比作→comparison n．比较7．apparent adj。
显而易见的;明白的；清楚的→apparently adv.据说;看来，似乎8．vary v．(形状等)不同;改变→various adj.各种各样的→variety n．多样性；多变性→variation n．差异；变化9．secure adj。
稳固的,可靠的→security n．安全10．greet v．打招呼→greeting n．问候，招呼1．trap n．(捕捉动物的）陷阱，罗网，夹子；圈套;诡计v．使落入险境;使陷入困境①She had set a trap for him and he had walked straight into it。
圈套②They were trapped in the burning building。
使陷入困境③I wondered if it was an animal caught in a trap。
陷阱2．explode v．爆炸；爆破；爆裂；勃然（大怒)；大发（雷霆）；突然发生（危险）；突然爆发，迸发(感情）;突然增加①There was a huge bang as if someone had exploded a rocket outside。
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4.owe vt.欠(钱、账、人情等);归功于;应感谢 owe sb.sth./owe sth.to sb.欠某人某物 owe sb.an apology该向某人道歉 owe sb.a favour欠某人一个人情 owe...to...把……归功于……;应感激…… owing adj.欠着的;未付的 owing to=because of=on account of=due to 因为;由于 5.absorb v.吸收;理解;吸引 absorbing adj.引人入胜的,十分吸引人的 be absorbed in全神贯注于……
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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. 2.The cats in consequence turned their attention — and their stomachs—back to the native birds,killing up to 60,000 each year. 3.Without bees,humans would die out. 4.Is it its forests that stretch on and on like great green seas?
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it作形式宾语 I find it pleasant to work with him. The professor considers it no good reading without understanding. We all thought it a pity that the conference should have been cancelled.
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8.take in包括;领会;理解;欺骗;收留;收养;吸收 take apart拆开;拆散 take down拿下;取下;拆卸;记下 take over继承;接收;接管 take off脱下(衣服等);起飞;大获成功 take on承担;呈现 take up开始从事;占用(时间或空间);着手处理;接受;继续 parison n.比较,对比 by/in comparison with与……相比较 by comparison (用于句首)比较起来 compare v.比较 compare...to...把……比作……;把……与……相比 compare..境 重点词汇 重点句式 重点语法
6.rely on v.依靠;依赖;指望 rely on sb.to do sth.指望/相信某人会做某事 rely on (doing) sth.依赖/信任/指望(做)某事 rely on it that...相信……;指望…… reliable adj.可信赖的;可靠的 7.break down (机器)出故障;(计划、希望、谈判等)失败;身体垮掉; 分解 break away from脱离(政党) break in打断(谈话);插嘴;破门而入 break into强行闯入;撬开(汽车等) break out (战争、火灾等)爆发 break through突破;穿透 break up分散;拆散;结束;(关系等)破裂
单元重点小结
主题语境 重点词汇 重点句式 重点语法
生态平衡
主题语境 重点词汇 重点句式 重点语法
1.decrease v.减少 n.减少,缩减 decrease by...减少了……(指减少的差值) decrease to ...减少到……(指减少后的最终结果) decrease from... to...从……减少到…… on the decrease在减少 2.trap n.陷阱;圈套;计谋;夹子 v.诱捕;设陷阱;困住 set a trap设陷阱 be caught in a trap落入圈套;落入陷阱 be trapped in...困在……里;陷入…… 3.explode v.爆发;激增;(使)爆炸;突然(发出巨响,活跃起来,迸发感情) explosion n.爆炸;爆发;激增 explode with anger勃然大怒
主题语境 重点词汇 重点句式 重点语法
10.variation n.变化,变异,变种 variety n.变化;多样性;种类 a variety of多种多样的 various adj.种类繁多的;各种各样的 vary vi.改变;变化 vary with sth.随……而变化 vary in在……方面变化 vary from...to...从……到……不等;在……到……之间变动