Unit 3 Environmental Protection 重点词汇精讲 课件-2027届高三英语人教版选择性必修第三册

该高中英语高考复习课件聚焦“环境保护”主题，覆盖melt、starve等18个核心词汇及melt away等19个高频词组，依据高考评价体系分析词汇在语法填空、完形填空等题型中的考查权重，归纳词性转换、固定搭配等常考考点，构建系统备考框架。 课件亮点在于“高考真题链接+语境应用训练”，如结合2023新课标I卷“sustain”用法、2026杭州一模“melt away”语境，通过派生词转换（starve→starvation）、时态填空（has melted）等技巧培养学生语言能力和思维品质。真题演练与外刊改编题强化实战，助力学生掌握答题规律，教师可据此精准开展针对性复习。

新人教版选择性必修三 Unit 3 Environmental Protection 重点词汇精讲 Language Points 1. melt /melt/ vi. & vt.（使）融化；熔化；软化 派生词：melting adj. 融化的；动人的 【课文原句】 The ice sheets and glaciers are melting, and sea levels are rising. 冰盖和冰川正在融化，海平面也在上升。 【高考链接】 It was wonderful to see them cooperate, their initial differences melting away in the warmth of shared creativity.（2026杭州一模） 【用法搭配】 melt away 逐渐消失 melt into 融入 【语境应用】 ① Over the past decade, much of the mountain ice ______________ (melt). ② 她的紧张在同伴温暖的鼓励下渐渐消失。 Her nervousness melted away under her partner’s warm encouragement. has melted 2. starve /stɑːv/ vi. & vt.（使）挨饿；饿死 派生词：starvation n. 饥饿；饿死 【课文原句】 An expert who has studied polar bears for many years said that from the position of its dead body, the bear appeared to have starved and died. 一位研究北极熊多年的专家说，从尸体的位置看，这只熊似乎是饿死的。 【语料链接】 Without sea ice, polar bears may starve because they struggle to find food.（单元语境） 【用法搭配】 starve to death 饿死 be starved of 缺乏 【语境应用】 ① Climate change may leave some animals facing ______________ (starve). ② 饥饿的幼兽无力地倒在雪地里。 The starving young animal collapsed weakly in the snow. starvation 3. release /rɪˈliːs/ vt. & n. 排放；释放；发布 派生词：release ... into 把……排放到…… 【课文原句】 The heat is released back into space at longer wave lengths. 热量以较长波长释放回太空。 【高考链接】 A study carried out by some of its researchers several years ago concluded that city trees did release isoprene.（2026新课标I卷） 【用法搭配】 release ... into the air 向空气中排放…… release pressure 缓解压力 【语境应用】 ① The research findings ______________ (release) to the public yesterday. ② 听到获救的消息，她如释重负地长舒了一口气。 Hearing the rescue news, she released a long breath of relief. were released 4. sustain /səˈsteɪn/ vt. 维持；遭受；承受 sustainable /səˈsteɪnəbl/ adj. 可持续的；合理利用的 派生词：sustainability n. 持续性；可持续性 【课文原句】 Without this process, Earth could not sustain life. 没有这一过程，地球就无法维持生命。 【高考链接】 Here are five ways to sustain long-distance friendships.（2023新课标I卷） 【用法搭配】 sustain life 维持生命 sustainable development 可持续发展 【语境应用】 ① The city is seeking a more ______________ (sustain) way to manage waste. ② 只有长期坚持，微小的环保行动才能带来真正的改变。 Only sustained effort can turn small environmental actions into real change. sustainable 5. trend /trend/ n. 趋势；趋向；动向 派生词：tendency n. 趋势；倾向 【课文原句】 There is little doubt that Earth is getting warmer and warmer. 毫无疑问，地球正变得越来越暖。 【高考链接】 What trend in DIY does the research show?（2023新课标I卷） 【用法搭配】 a growing trend 日益增长的趋势 reverse the trend 扭转趋势 follow a trend 跟随潮流 【语境应用】 ① Recent climate ______________ (trend) have drawn worldwide attention. ② 看到情况逐渐好转，她眼中重新燃起了希望。 Seeing the trend reverse, hope returned to her eyes. trends 6. frequently /ˈfriːkwəntli/ adv. 频繁地；经常 派生词：frequent adj. 频繁的；frequency n. 频率 【课文原句】 In fact, news reports are frequently broadcast about extreme rainstorms and heatwaves causing deaths and economic losses. 事实上，新闻报道经常播报极端暴雨和热浪造成死亡及经济损失。 【高考链接】 His father frequently amused the boy with a tablet computer loaded with colourful pictures.（2022新高考II卷） 【用法搭配】 occur frequently 频繁发生 more frequently 更频繁地 【语境应用】 ① The ______________ (frequent) of extreme weather events has increased noticeably. ② 她频频回头，担心身后的孩子跟不上。 She looked back frequently, worried that the child behind might fall behind. frequency 7. broadcast /ˈbrɔːdkɑːst/ vt. & vi. 广播；播送 n. 广播节目 派生词：broadcaster n. 广播员 【课文原句】 News reports are frequently broadcast about extreme rainstorms and heatwaves. 新闻报道经常播报极端暴雨和热浪。 【高考链接】 They engineered a device designed to broadcast the forgotten melody.（2026深圳一模） 【用法搭配】 broadcast live 现场直播 broadcast a message 播送消息 【语境应用】 ① The environmental programme ______________ (broadcast) nationwide last night. ② 获奖消息一经广播，全校顿时沸腾起来。 Once the news of the award was broadcast, the whole school burst into excitement. was broadcast 8. restrict /rɪˈstrɪkt/ vt. 限制；限定；束缚 restriction /rɪˈstrɪkʃn/ n. 限制规定；限制法规；约束 派生词：restricted adj. 受限制的 【课文原句】 Governments need to consider making policies and taking appropriate actions and measures to reduce greenhouse gas emissions. 各国政府需要考虑制定政策，并采取适当行动和措施来减少温室气体排放。 【高考链接】 It is easy to imagine that fish and other ocean creatures swim freely without restriction.（2026宁波二模） 【用法搭配】 restrict ... to ... 把……限制在…… place restrictions on 对……加以限制 【语境应用】 ① New environmental ______________ (restrict) have reduced harmful emissions. ② 狭窄的道路限制了救援车辆的通行。 The narrow road restricted the movement of rescue vehicles. restrictions 9. seize /siːz/ vt. 抓住；夺取；控制 同义词：grasp vt. 抓住；领会；capture vt. 夺取；捕获 【课文原句】 We should seize every opportunity to protect our shared home. 我们应抓住每一个机会保护共同的家园。 【高考链接】 The only opportunity she could seize was when her brother was having Chinese with the family tutor.（2024全国甲卷） 【用法搭配】 seize the opportunity 抓住机会 seize control of 控制 【语境应用】 ① She ______________ (seize) the chance to join the conservation project yesterday. ② 他抓住绳索，把落水的孩子拉向岸边。 He seized the rope and pulled the child toward the bank. seized 10. undergo /ˌʌndəˈɡəʊ/ vt. 经历；经受（变化、不快等） 同义词：experience vt. 经历；go through 经历；经受 【课文原句】 The climate has undergone dramatic changes in recent decades. 近几十年来，气候经历了剧烈变化。 【语料链接】 Many ecosystems are undergoing rapid change as global temperatures rise.（单元语境） 【用法搭配】 undergo treatment 接受治疗 undergo a transformation 经历转变 【语境应用】 ① The wetland _______________ (undergo) major restoration since 2022. ② 经历了漫长的等待后，她终于听到了熟悉的脚步声。 After undergoing a long wait, she finally heard the familiar footsteps. has undergone 11. harmonious /hɑːˈməʊniəs/ adj. 和谐的 派生词：harmony n. 和谐；融洽；harmoniously adv. 和谐地 【课文原句】 We should work together to build a harmonious relationship between human beings and nature. 我们应共同努力，构建人与自然的和谐关系。 【高考链接】 His teachings shaped Chinese culture, fostering respect for authority and harmonious relationships.（2023新课标I卷） 【用法搭配】 live in harmony with 与……和谐相处 a harmonious society 和谐社会 【语境应用】 ① Respect for nature helps create ______________ (harmonious) between people and the environment. ② 人群中爆发出和谐而温暖的笑声。 Warm, harmonious laughter rose from the crowd. harmony 12. moderate /ˈmɒdərət/ adj. 适度的；中等的；温和的 vt. 缓和；使适中 派生词：moderately adv. 适度地；moderation n. 适度 【课文原句】 The rise in temperature led to an increase in extreme weather and natural disasters worldwide. 气温上升导致全球极端天气和自然灾害增加。 【高考链接】 Moderate physical activity can contribute to long-term health.（高考专题训练） 【用法搭配】 a moderate increase 适度增长 in moderation 适度地 【语境应用】 ① The region experienced a ______________ (moderate) warm winter than usual. ② 她用温和的语气缓和了紧张的气氛。 She moderated the tension with a calm and gentle voice. moderately 13. submit /səbˈmɪt/ vt. & vi. 提交；呈递；屈服 派生词：submission n. 提交；屈服 【课文原句】 The report was submitted to the government for consideration. 这份报告已提交政府审议。 【高考链接】 They surveyed several hundred park-goers, asking them to submit a written summary online.（2023新课标II卷） 【用法搭配】 submit ... to ... 向……提交…… submit an application 提交申请 【语境应用】 ① All teams ______________ (submit) their reports before the deadline yesterday. ② 她深吸一口气，郑重地递交了自己的申请。 Taking a deep breath, she submitted her application with determination. submitted 14. on behalf of /ɒn bɪˈhɑːf əv/ 代表（代替）某人 派生词：behalf n. 代表；利益 【课文原句】 I am doing a project on behalf of my school about global warming. 我正代表学校开展一个关于全球变暖的项目。 【高考链接】 On behalf of my group, I’d like to share our project and its final work, The Campus Bird Handbook.（2026深圳二模） 【用法搭配】 on behalf of sb 代表某人 on one’s behalf 代表某人；为了某人 【语境应用】 ① The student spoke ______________ behalf of the whole class. ② 我代表全体志愿者，向您表示衷心感谢。 On behalf of all the volunteers, I would like to express my sincere gratitude. on 15. restore /rɪˈstɔː/ vt. 恢复；使复原；修复 派生词：restoration n. 恢复；修复 【课文原句】 Local communities can work together to restore damaged ecosystems. 当地社区可以共同努力修复受损的生态系统。 【高考链接】 Help restore and protect Marin’s natural areas from the Marin Headlands to Bolinas Ridge.（2024新课标I卷） 【用法搭配】 restore confidence 恢复信心 restore ... to ... 使……恢复到…… restore damaged wetlands 修复受损湿地 【语境应用】 ① The project focuses on the ______________ (restore) of damaged wetlands. ② 熟悉的笑容使房间重新充满了温暖。 Her familiar smile restored warmth to the room. restoration 16. conservation /ˌkɒnsəˈveɪʃn/ n. 对（环境、文物等）保护；保持 派生词：conserve vt. 保护；节约 【课文原句】 The Amazon rainforest is often called the “lungs of the planet”, so its conservation is vital. 亚马孙雨林常被称为“地球之肺”，因此保护它至关重要。 【高考链接】 Both efforts were overturned due to lawsuits from conservation groups.（2023新课标I卷） 【用法搭配】 wildlife conservation 野生动物保护 energy conservation 节约能源 【语境应用】 ① The community has invested heavily in forest ______________ (conserve). ② 孩子们小心翼翼地把受伤的鸟送往野生动物保护中心。 The children carefully carried the injured bird to a wildlife conservation centre. conservation 17. dozens of /ˈdʌznz əv/ 许多；很多 派生词：a dozen 一打；十二个 【课文原句】 Dozens of enterprises and local residents have joined the environmental campaign. 许多企业和当地居民参加了这场环保活动。 【高考链接】 The process involves dozens of complicated steps, including scraping, splitting and slicing.（2026烟台一模） 【用法搭配】 dozens of 许多；很多 by the dozen 成打地 【语境应用】 ① ______________ (dozen) of volunteers took part in the river clean-up last weekend. ② 数十名志愿者闻讯赶来，齐心协力清理河岸。 Dozens of volunteers rushed over and worked together to clean the riverbank. Dozens 18. tolerate /ˈtɒləreɪt/ vt. 忍受；包容；容许 派生词：tolerant adj. 宽容的；tolerance n. 忍耐力 【课文原句】 The villagers could no longer tolerate the polluted water and demanded action. 村民们再也无法忍受被污染的水，要求采取行动。 【高考链接】 No editor is likely to tolerate a writer who does not take the trouble to spell words correctly.（2024新课标I卷） 【用法搭配】 tolerate doing sth 忍受做某事 have no tolerance for 无法容忍 【语境应用】 ① Long-term cooperation requires patience and ______________ (tolerate). ② 他咬紧牙关忍受疼痛，继续把伤员背向安全地带。 He gritted his teeth, tolerated the pain, and carried the injured man toward safety. tolerance 【本单元重点词组】 1. 逐渐消失 melt away 2. 饿死 starve to death 3. 向空气中排放…… release ... into the air 4. 维持生命 sustain life 5. 可持续发展 sustainable development 6. 日益增长的趋势 a growing trend 7. 日益频繁地 with increasing frequency 8. 现场直播 broadcast live 9. 对……加以限制 place restrictions on 10. 抓住机会 seize the opportunity 11. 经历转变 undergo a transformation 12. 与……和谐相处 live in harmony with 13. 适度地 in moderation 14. 向……提交…… submit ... to ... 15. 代表 on behalf of 16. 恢复信心 restore confidence 17. 野生动物保护 wildlife conservation 18. 许多；很多 dozens of 19. 忍受做某事 tolerate doing sth 【真题演练】 In 2021, a wetland near our town 1. _______________ (damage) by pollution and falling water levels. Last spring, the local government launched 2. ____________ restoration project to protect the area. Experts first studied the birds 3. ____________ depended on the wetland for food. They then asked factories nearby 4. ____________ (restrict) wastewater discharge. New environmental 5. ____________ (rule) were also introduced to prevent further damage. Since the project began, the wetland 6. _______________ (undergo) an encouraging transformation. Dozens of volunteers have planted trees and removed rubbish 7. ____________ the riverbank. Water quality is now improving 8. ____________ (steady). At sunrise, visitors can again hear birds 9. ____________ (sing) among the reeds. The project shows that damaged ecosystems can be restored when communities act with patience and 10. ________________ (determine). was damaged a that to restrict rules has undergone from steadily singing determination 【外刊改编】 改编自 United Nations Environment Programme｜Ecosystem restoration Ecosystem restoration, which means helping damaged natural areas recover, has become 1. ____________ important response to biodiversity loss and climate change. Healthy forests and wetlands can sustain wildlife, store carbon, and provide water 2. ____________ local communities. UNEP notes that restoration does not always mean returning nature to 3. ____________ it was centuries ago. Instead, people should choose solutions 4. ____________ (suit) to present conditions. By 2030, many countries 5. ________________ (promise) to restore large areas of degraded land. Successful projects begin with careful planning and community 6. ______________ (involve). Native trees may be planted, while harmful activities 7. _______________ (restrict) through local rules. Last year, scientists monitored changes and 8. ____________ (identify) several problems early. When residents understand the value of conservation, they are more willing to act 9. ____________ (responsible). Such cooperation creates a more harmonious relationship between people and nature, 10. ____________ benefits both present and future generations. an for what suited have promised involvement are restricted identified responsibly which $