必修第二册 Unit 6 Earth first（PPT课件）-【精讲精练】2027年高考英语一轮复习（外研版）

该高中英语高考复习课件聚焦必修第二册Unit 6核心内容，依据高考评价体系梳理了词汇（如devote, reduce）、语法（形容词短语作状语、倍数句型）、写作（应用文报道、读后续写）三大考查维度，结合2024-2025年全国卷及新课标卷真题，明确动词短语运用、句式结构分析等高频考点分布，构建“课前检测-课中突破-课后提升”的完整复习体系。 课件亮点在于“真题融入+技巧建模+素养培育”策略，如以2025全国一卷“plastics reduction”真题为例，剖析“reduce by/to”用法，培养学生语言能力；通过倍数句型三种表达变式训练，提升思维品质。特设写作模板库（报道三段式）和熟词生义破解法，助力学生掌握答题技巧，教师可据此精准教学，实现高效备考。

Unit 6　Earth first 必修第二册 栏目导航 必修第二册 1 栏目导航 课前检测•基础过关 01 课中研析•考点突破 02 课后提升•素养培优 03 知能达标训练 04 教考衔接•写作提升 04 栏目导航 必修第二册 1 课前检测•基础过关 栏目导航 栏目导航 必修第二册 1 urgent extinction 栏目导航 必修第二册 1 reduction presentation sustainable 栏目导航 必修第二册 1 devoted devoted devotion permission permitted concerned concerned concerning 栏目导航 必修第二册 1 cruelly cruelty contributed contribution 栏目导航 必修第二册 1 It took us at least three hours to get to the top of the mountain three times as much time and energy as 栏目导航 必修第二册 1 It was then that 栏目导航 必修第二册 1 课中研析•考点突破 栏目导航 栏目导航 必修第二册 1     栏目导航 必修第二册 1 achieving devotion 栏目导航 必修第二册 1 how much love his father had devoted to him 栏目导航 必修第二册 1     栏目导航 必修第二册 1 by reduction was reduced to tears 栏目导航 必修第二册 1     栏目导航 必修第二册 1 (should)reflect to take 栏目导航 必修第二册 1 urgent urgency fought the urge to run off the stage 栏目导航 必修第二册 1     栏目导航 必修第二册 1 to contribution 栏目导航 必修第二册 1 make a contribution to the further development of transportation 栏目导航 必修第二册 1     栏目导航 必修第二册 1 on spends an average of two hours 栏目导航 必修第二册 1 to pick out my brother among the crowd because his height is above average 栏目导航 必修第二册 1     栏目导航 必修第二册 1 to to arrive being held My thanks are due to you 栏目导航 必修第二册 1 栏目导航 必修第二册 1     栏目导航 必修第二册 1 for on account of on no account 栏目导航 必修第二册 1 take them into account 栏目导航 必修第二册 1     栏目导航 必修第二册 1 Fortunately cold and hungry 栏目导航 必修第二册 1 Afraid of not finding our way to the farm 栏目导航 必修第二册 1     栏目导航 必修第二册 1 more three times as big as three times bigger than three times the size of 栏目导航 必修第二册 1 课后提升•素养培优 栏目导航 栏目导航 必修第二册 1 维持(生命)；养活 大量送至 供应量 栏目导航 必修第二册 1 B D C A 栏目导航 必修第二册 1 B C A 栏目导航 必修第二册 1 栏目导航 必修第二册 1 (被)过度采样的 过度旅游 栏目导航 必修第二册 1 高估 推翻 胜过；做得比……好 栏目导航 必修第二册 1 教考衔接•写作提升 栏目导航 栏目导航 必修第二册 1 栏目导航 必修第二册 1 our school organized a series of campaigns to arouse the students' awareness of food crisis 栏目导航 必修第二册 1 a lecture where students learned about the severity of global food shortage and the need to reduce food waste highlighted how essential it is to develop sustainable eating habits 栏目导航 必修第二册 1 In the canteen，a campaign aimed at boosting food waste awareness was launched Students were urged to take only what they could consume leftovers were contributed to local charities 栏目导航 必修第二册 1 The event generated widespread attention in tackling global food challenges but also fostered a sense of devotion among participants 栏目导航 必修第二册 1 栏目导航 必修第二册 1 栏目导航 必修第二册 1 栏目导航 必修第二册 1 栏目导航 必修第二册 1 Scared by the height of the bridge Deeply affected by my little daughter's usual bravery was concerned about Urging myself to build up confidence it was my daughter's bravery that helped me get through this and contributed to my success 栏目导航 必修第二册 1 知 能 达 标 训 练 栏目导航 栏目导航 必修第二册 1 谢谢观看 栏目导航 必修第二册 1 Ⅰ.单句语法填空 1．(译林选必三U4)There are currently around 1，100 sites in more than 160 countries worldwide.Unfortunately，they face a variety of dangers and many of them are in ______ (urge) need of protection. 2．Scientists warn that if global warming continues，one-third of all marine species could be pushed to __________(extinct) by 2100. 3．A _________ (reduce) in public transport fares has encouraged more people to leave their cars at home and take buses or subways. 4．He felt nervous before his first ____________ (present)，so he practiced speaking in front of his roommates several times. 5．Tourist attractions in this area have set limits on daily visitors to ensure ___________(sustain) tourism that doesn't harm local ecosystems. Ⅱ.语境运用 1．Bethune，a _______ friend of Chinese，_______ his life to helping Chinese.I really respect his ________ to medical work.(devote) 2．Without the teachers' __________，no one is _________ to go into the chemistry lab.(permit) 3．As far as I'm _________，we should be aware that our parents are _________ not only about our safety，but also some matters __________ our growth.(concern) 4．Once upon a time，human beings treated sharks _______ and people's _______ made the number of sharks reduce sharply.(cruel) 5．She ___________ all her life to the scientific career and no doubt her ____________ won admiration of people all over the country.(contribute) Ⅲ.完成句子 1．(人教必修三U1)到山顶至少花了我们三个小时，但是(观赏)上面的景色还是值得的。(活动介绍) ________________________________________________________，but the view up there is worth it. 2．杰西卡付出了以前三倍的时间和精力，所以我相信她这次能成功。(细节描写) Jessica devoted ________________________________ she did before，so I believe she will succeed this time. 3．(译林选必三U1)就在那时，我注意到一只灰色的小猴子坐在几米外的树上吃香蕉。(场景描写) ________________ I noticed a small grey monkey sitting on a tree a few metres away and eating a banana. devote v.致力，献身，倾注(☞devoted adj.忠实的；深爱的☞devotion n.奉献；献身；忠诚) (1)devote...to...　把……奉献给……；专注于…… devote oneself to　致力于；献身于 (2)be devoted to　专心于；致力于 [练透]　单句语法填空/完成句子 ①Motivated by the original Olympic motto “Faster，Higher，Stronger”，many well-known athletes，both male and female，have devoted themselves to _________ (achieve)sporting excellence and pushing the boundaries of human achievement.(译林选必二U2) ②Another sportsperson that should be applauded is Jessica Ennis-Hill.Her story is a remarkable example of how hard work and ________ (devote) can lead to sporting excellence.(译林选必二U2) ③当他意识到父亲对他倾注了如此多的爱时，一股暖流涌上他的心头。(情感描写) A warm current welled up in his heart the moment he realized ___________________________________________． [点津]　devote...to...中的to是介词，其后常接名词、代词或动词-ing形式作宾语。 reduce v.减少，降低(☞reduction n.降低；减少) reduce...by...　把……减少了…… reduce...to...　把……减少到……； 把……变为某种状态 be reduced to　陷入某种境地(to为介词) [练透]　单句语法填空/完成句子 ①In samples with less than 60 milligrams of calcium carbonate，boiling reduced the level of plastics __ just 25 percent.(2025·全国一卷) ②Inside the office，they encourage recycling and waste _________ (reduce) by limiting garbage cans and avoiding single-use plastic.(2024·新课标Ⅱ卷) ③听到考试失败的消息，她在父母面前忍不住哭了起来。(情感描写) At the news that she failed in the exam，she ____________________ in front of her parents. urge v.竭力主张，强烈要求，敦促 n.冲动；强烈的愿望(☞urgent adj.紧急的；迫切的☞urgency n.紧急；催促) (1)urge sb to do sth　催促某人做某事 urge that...(should) do sth　极力主张……做某事 (2)It is urgent that...(should) do sth.　主张…… (3)have an urge to do sth　渴望做某事 [练透]　单句语法填空/完成句子 ①To protect oceans better，we must urge that more people _____________ (reflect) on their own improper behavior and make changes. ②Parents should actively urge their children _______ (take) advantage of the opportunity to join sports teams. ③If the information you're communicating isn't _______，consider sending an email.There's an _______ to improve public transportation in this area，as traffic jams have become a daily issue.(urge) ④看到那么多人，汤姆感到很尴尬，但他抑制住了想跑下台的冲动。(心理描写) At the sight of so many people，Tom was embarrassed，but he ____________________________________． contribute v.促成，造成(某事发生)；贡献；捐献；投稿(☞contribution n.捐献；贡献；稿件) (1)contribute sth to...　把某物捐献给…… contribute to　有助于；导致；投稿 (2)make a contribution/contributions to　对……作出贡献 [练透]　单句语法填空/完成句子 ①They have great facilities and outstanding professors，helping to educate young people who will contribute __ the economy and further strengthen our country.(人教选必二U2) ②Tu Youyou has become the first female scientist of the People's Republic of China to receive a Nobel Prize，awarded for her ____________ (contribute) to the fight against malaria，one of the deadliest diseases in human history.(译林必修三U4) ③因此，我们需要努力学习，为交通运输的进一步发展作出贡献。(发言稿) Therefore，we need to study hard and ________________________ __________________________________．(2024·全国甲卷，书面表达) average adj.平均(数)的；普通的，平常的n.平均数；平均水平v.平均为；计算出……的平均数 an average of　平均有(后跟数词) on (the) average　平均起来 above/below (the) average　在平均水平以上/以下 [练透]　单句语法填空/补全句子/完成句子 ①It is said that the time spent on homework by the Chinese students is more than four hours a day __ average. ②He ______________________________(平均花两小时) reading books each day，believing this routine not only enriches his knowledge but also improves his ability to think deeply. ③从人群中找到我弟弟并不困难，因为他的身高高于平均水平。(外貌描写) It is not difficult ____________________________________________ ____________________． due to由于，因为 due adj.　应得的；应付的；到期的 be due to sth/sb　归因于某事/某人；应付给某人…… be due to do sth　预计做某事，预定要做某事 [练透]　单句语法填空/完成句子 ①Due __ a big storm，my flight had been delayed by an hour and a half.I touched down in Vienna just 30 minutes before the departure of the last bus to Prague.(2024·新课标Ⅰ卷) ②The bus was due _________ (arrive) at 5：00 p．m.，but it arrived one hour late due to __________ (hold) up by the heavy fog. ③我要感谢你，没有你的帮助，我不可能有如此成就。(感谢信) ________________________，without whose help I would not have achieved so much. [点津]　表示 “由于、因为”的短语还有：because of，on account of，owing to，thanks to，in consequence of，as a consequence/result of等。due to一般只用作表语。 take...into account (＝take account of...)把……考虑进去 (1)account vi.& vt.　认为；说明；总计有 n .　说明；理由；计算；账目 account for...　是……的原因；解释；导致；占……(比例) give an account of　说明；对……进行描述 (2)on account of　由于，因为 on no account　决不；绝对不(位于句首，句子用部分倒装) [练透]　单句语法填空/补全句子/词汇升级 ①Only when you give serious consideration to their points of view will you be able to see what accounts ___ their emotions and empathize with them.(译林选必四U2) ②The students was unable to deliver the speech _____________ (由于) the injury to his throat. ③The professor warned the students that _____________ (绝不) should they use mobile phones in his class. ④I believe the suggestions above are practical and beneficial for improving the current situation，and I sincerely hope you will consider them.(建议信) →I believe the suggestions above are practical and beneficial for improving the current situation，and I sincerely hope you will ______________________． 形容词(短语)作状语 教材原句：Some people stopped swimming in the sea，afraid of the horrible creature from the film. 有些人因为害怕电影里那种可怕的生物而不再去海里游泳。 (1)形容词(短语)作状语可以表示方式、原因或伴随状况等，可位于句首、句末或句中，常用逗号与句子其他成分隔开； (2)形容词(短语)作状语时常用来说明句子主语的状态，即常和主语构成系表结构。如果用来修饰句子的谓语动词或整个句子，则应用副词作状语。 [练透]　单句语法填空/补全句子/句式升级 ①They thoroughly checked the whole room to make sure if there was anything lost and lifted the hoard to search for the watch.___________ (fortunate)，everything was in order and to their astonishment，there was a watch lying silently under the floorboard.(2025·浙江1月卷) ②The girl stood there，staring at the food，_______________ (又冷又饿).(动作＋情绪描写) ③I was afraid of not finding our way to the farm.I sat beside a tree and held my shoulders in my arms tightly. →_____________________________________，I sat beside a tree and held my shoulders in my arms tightly.(形容词短语作状语) 倍数句型 教材原句：However，making a paper bag uses four times as much energy as making a plastic bag and up to three times the amount of water. 然而，制造一个纸袋消耗的能量是制造一个塑料袋的四倍，用水量多达三倍。 (1)A＋be＋倍数＋as＋adj./adv.(原级)＋as＋B (2)A＋be＋倍数＋adj./adv.(比较级)＋than＋B (3)A＋be＋倍数＋the＋名词(size/weight/length...)＋of＋B (4)A＋be＋倍数＋what从句 [练透]　单句语法填空/一句多译 ①Even bottled water，scientists found earlier this year，contains 10 to 1，000 times ____(many) microplastics than originally thought.(2025·全国一卷) ②正在建设的新体育场将是目前这个体育场的三倍大。 a．The new stadium being built will be _________________ the present one. b．The new stadium being built will be __________________ the present one. c．The new stadium being built will be __________________ the present one. 　熟词生义 快速阅读下列句子并猜测句中加黑词汇的汉语意思 1．(2025·全国二卷)Doctors practice medicine and lawyers practice law and you should allow yourself the practice it takes to sustain a plant. __________________ 2．(2025·全国二卷)When Sonja Detrinidad opened her online shop selling houseplants，she didn't have high hopes for it.But the opposite happened：She was flooded，shipping out 1，200 orders in June of 2020 alone._____________ 3．(2024·新课标Ⅱ卷)The innovative design requires little effort to achieve a reliable weekly supply of fresh greens. __________ 　一词多义 1．due A．adj.预定的，预期的 B．adj.到期的　C．adj.应给予，应归于 D．adj.适当的，合适的 (1)(2025·浙江1月卷)Loan periods are established by the lending library.All due dates are noted on the label._____ (2)No matter how ordinary a job is，it plays a part in society and therefore deserves our due respect._____ (3)The honour is mainly due to you.But for your help and professional instruction，we couldn't have done so brilliantly._____ (4)The train to Beijing is due at 3：15 p．m.— we should hurry to the platform now._____ 2．dive A．v.跳水；潜水 B．v.下降；俯冲　C．vt.迅速投入；钻研 (1)After the new policy was released，housing prices in the area dived by 15% in a month._____ (2)As soon as she got home，she dived into her homework and didn't finish until midnight._____ (3)The marine biologist dived 20 meters deep to observe the rare sea turtles that only gather in this coastal area during their breeding season._____ 　破解构词法密码 前缀over-和前缀out- 含义 例词 (1)前缀over-意为“过度”等 overwork v.过度工作 overweight adj.超重的 overcrowded adj.过于拥挤的 overproduction n.生产过剩 (2)前缀out-意为“向外，多于” outrun v.跑得比…… 快；逃脱 outnumber v.数量超过 outdated adj.过时的；陈旧的 写出下列黑体词的含义 1．(2024·新课标Ⅰ卷)Biodiversity apps can use our study results to inform users of oversampled areas and lead them to places—and even species—that are not well-sampled. __________________ 2．(2024·新课标Ⅱ卷)Travel promotes understanding, expands our minds，and boosts local economies, but the rapid growth of travel has led to overtourism in certain regions. ____________ 3．(2023·新课标Ⅰ卷)Some people will tend to overestimate，and some to underestimate. ______ 4．This research overturns the popular view that all human speech sounds were present when human beings evolved around 300，000 years ago. ______ 5．This new phone outperforms its competitors in battery life. ______________________ Ⅰ.应用文写作提分练 报道3段式：活动目的→介绍活动过程→活动反响 用本单元所学词汇、句式完成下面的应用文写作并背诵全文。 10月16日是世界粮食日(World Food Day)，你校为了提高学生珍惜粮食的意识举办了一系列活动。假定你是校英语报的记者，请你为校英语报写一篇活动报道。内容要点包括：1.活动过程；2.活动反响。 第一步　斟酌词句　靓化表达(黑体部分请用本单元所学词汇) 1．为庆祝10月16日世界粮食日，我校组织了一系列活动，以提高学生对粮食危机的认识。 In celebration of World Food Day on October 16th，_________________ __________________________________________________________． 2．粮食日以讲座拉开帷幕，学生们在讲座中了解了全球粮食短缺的严重性和减少食物浪费的必要性。The day kicked off with ___________________________________________________________________________________________． 3．引人入胜的研讨会强调了养成可持续饮食习惯的重要性。(宾语从句) Engaging workshops _________________________________________ _____________________． 4．在餐厅，发起了一项旨在提高食物浪费意识的活动。(被动句；非谓语动词作定语) ______________________________________________________________________． 5．学校敦促学生按量取餐，剩菜剩饭被捐给当地的慈善机构。(被动句) _____________________________________________________，and _______________________________________． 6．该活动引起了广泛关注，不仅提醒了我们在应对全球粮食挑战方面所承担的责任，而且培养了参与者的奉献精神。 _____________________________________，which not only reminded us of the responsibility we bear ____________________________________ __________________________________________． 第二步　恰当过渡　完美成文(请利用恰当的过渡衔接词汇，如following that，needless to say等) _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ _________________________________________________________ [参考范文] In celebration of World Food Day on October 16th，our school organized a series of campaigns to arouse the students' awareness of food crisis. The day kicked off with a lecture where students learned about the severity of global food shortage and the need to reduce food waste.Following that，engaging workshops highlighted how essential it is to develop sustainable eating habits.In the canteen，a campaign aimed at boosting food waste awareness was launched.Students were urged to take only what they could consume，and leftovers were contributed to local charities. Needless to say，the event generated widespread attention，which not only reminded us of the responsibility we bear in tackling global food challenges but also fostered a sense of devotion among participants. Ⅱ.读后续写提升练 Step 1　教材语料 亮词 [情感描写]scare，urge，be concerned about，fortunately [动作描写]dive，devote，highlight，damage，affect，release，leak，contribute to 美句 1.She surfaces，cries in fear，then disappears forever.(情感＋动作链描写) 2．People have always been scared of sharks，but Jaws made things worse.It made people frightened of sharks，especially of the great white shark.(情感描写) 3．Some people stopped swimming in the sea，afraid of the horrible creature from the film.(情感描写) Step 2　单元词汇续写场景练 根据左栏汉语和黑体部分的提示，利用本单元所复习的词汇或句式补全小语段，并背诵全文。 被桥的高度吓到，我的双腿控制不住地发颤。深受小女儿平日勇敢模样的影响，我深吸一口气，对自己轻声说：“要勇敢。”身旁的丈夫很担心我，一直轻轻抓着我的胳膊，他掌心的温度让我稍稍安定下来。我不断给自己打气、树立信心，慢慢释放了压力，也放松了紧绷的肩膀，最终走上了这座 22 米高的吊桥。桥身轻轻晃动，但我已不再被恐惧笼罩。走到桥中间时我才明白 —— 正是女儿的勇敢，帮我度过了这一关，也促成了我的成功。 1．__________________________________(过去分词短语作状语)，my legs trembled uncontrollably.2.__________________________________ ______________(过去分词短语作状语)，I took a deep breath and whispered to myself，“Be brave.”My husband beside me 3.___________________ me，gently grabbing my arm and the warmth of his palm calmed me a little.4.____________________________________(现在分词短语作状语)，I released my pressure，relaxed my shoulders，and finally walked on the 22-meter-high suspension bridge.The bridge swayed slightly，but I was no longer overcome by fear.When I reached the middle，I understood— 5.__________________________________________________________________________________________ (强调句型). $