Unit 5 A delicate World Developing ideas & Presenting ideas & Reflection-分级课时练习 2026-2027学年高中英语外研版选择性必修第二册

**基本信息** 课程：高中英语；单元：Unit 5 "A delicate World"；资料类型：同步练；场景：新授课。以"A级基础巩固+B级能力提升"分层设计，构建"词汇-句型-语篇"递进路径，融合语言能力与思维品质培养。 **分层设计** |层次|知识覆盖|设计特色| |----|----------|----------| |A级|单词拼写（如status、altitude）、单句语法（如词性转换、介词搭配）、基础写作（如固定句型）|聚焦核心词汇与语法规则，通过真题语境（如2025全国卷）强化基础，适配新授课即时巩固需求| |B级|七选五（语篇逻辑）、应用文写作（环保主题邮件）、读后续写（登山遇险叙事）|以真实情境（如极端高温、校园环保）提升语篇理解与综合表达能力，读后续写培养逻辑思维与叙事连贯性|

Unit 5　A delicate World Developing ideas & Presenting ideas & Reflection A级 必备知识基础 Ⅰ.单词拼写 1.After months of hard work,the 　　　　　　(地位) of the endangered plant has been greatly improved.  2.When we read the novel,we were shocked by the v　　　　　 desert described in the story and its harsh living conditions.  3.We had a two-hour study 　　　　　　(一段时间) after class to review the key points for the upcoming English exam.  4.(2022浙江1月卷)A total of 40 women met the 　　　　　　(标准) for a high fitness level with a capacity of 120 watts or higher,while 92 women were in the medium fitness category.  5.It is r　　　　　 to see such a beautiful double rainbow after the rain in our city.  6.The higher the 　　　　　　(海拔) is,the thinner the air becomes,which is why many people feel dizzy when climbing mountains.  7.The school’s reading club 　　　　　　(茁壮成长) quickly after it launched a series of interesting activities,attracting more than 100 members.  8.(2025全国一卷)Whole neighbourhoods were destroyed to make way for new road networks and kids had to play 　　　　　　(在别处).  Ⅱ.单句语法填空 1.(2025北京卷)The shadow of this 　　　　　　(mystery) institution steals away what success means to us.  2.Many environmental organizations are making great efforts to protect 　　　　　　(endanger) animals from extinction.  3.We human beings should learn to coexist 　　　　　　nature instead of overexploiting natural resources.  4.Our school has set up a special team to strengthen campus 　　　　　　(secure) and protect students from potential dangers.  5.She gave her new deskmate a warm 　　　　　　(greet) on their first day of the new semester.  6.The 　　　　　　(invade) of alien species will seriously damage the balance of the local ecological system.  7.The 　　　　　　(biology) diversity of the wetland is being threatened by human activities such as overfishing and pollution.  8.The hard work of every citizen contributes to the 　　　　　　(prosperous) and development of their country.  9.Some students ignore the importance of 　　　　　(nutritious) and only eat junk food,which is harmful to their physical development.  10.(2025北京卷)But now is the time to set the record straight,which starts with questioning the idea that all social 　　　　　　(compare) is unhealthy.  Ⅲ.单句写作 1.我很荣幸能代表学生会,对您参加我们的讲座表示最热烈的欢迎。 　　　　　　　　　　　　　　　　,I’m greatly honored to have the opportunity to extend our warmest welcome to you for your participation in our lecture.  2.很荣幸能站在这里发表演讲,演讲的主题是“感谢您,我的高中”。(It is+n.+to do sth.) 　　　　　　　　　　　　　　　　 and give you a speech,whose theme is “Thank you,my high school”.  3.上周日,由学生会组织的一些年轻学生志愿者走上街头,庆祝并宣传世界水日。(过去分词作后置定语) Last Sunday,some young student volunteers,　　　　　　　　　　　　　　　　　,took to the streets to celebrate and advertise World Water Day.  4.最后,爸爸把他们三个人带上船,Lizzy终于闭上了眼睛,筋疲力尽,如释重负。(where引导定语从句) Finally,Dad got three of them into the boat 　　　　　　　　　　　　　　　　　　,exhausted and relieved.  5.必须强调的是,该电台每周都会举办相当多精彩纷呈的活动。(what引导主语从句) 　　　　　　　　　　　　　　　　 is that the station holds a considerable number of fantastic activities every week.  B级 能力素养提升 Ⅳ.七选五 (2026四川泸州高二期中) Extreme heat can kill people,even though most of the deaths are preventable.It is reported that in the 24 years between 1979 and 2003 more people died in the United States of extreme heat than from hurricanes,lightning,tornadoes,floods and earthquakes.　1　?The golden rules are to drink plenty of water,dress in cool clothes and stay in the shade if possible.  　2　.Often after many months without rain,a single spark is all that is necessary to create a big fire.Wildfires can move at great speed and will destroy everything in their path.They can quickly change direction,which makes it very difficult for someone on the ground to escape.　3　,great damage can be caused in a short time.In 2010 such fires in Russia killed 62 people and destroyed about 23,000 square kilometers.A recent UN report suggests that the growing number of wildfires around the world may be contributing to global warming.Very often you can see such a terrible circle!　4　.Climate change causes drought;drought causes wildfires;and wildfires cause further climate change.  It is clear that the world is getting warmer.　5　,but it is reasonable to assume that this process is being speeded up by mankind’s release into the atmosphere of large amounts of greenhouse gas.  A.How can we survive it B.Extreme heat can also bring wildfires C.This is probably due to a natural process D.Very often you can see such a terrible circle E.It is also reasonable to realize the man’s effect on the world’s weather F.How can people predict extreme heat according to the climate change G.If quick action is not taken Ⅴ.应用文写作 (2026浙江七彩阳光高二期中) 假定你是李华,你班的英语报计划增设一个与“环境保护”相关的栏目。外教Jenny建议了“校园环保行动(Eco-actions on Campus)”和“环保知识小测试(Quizzes on Green Facts)”两个栏目供同学们选择。请你给Jenny写一封邮件,内容包含: 1.作出你的选择; 2.阐述选择理由。 注意: 1.写作词数应为80个左右; 2.请按如下格式在相应位置作答。 Dear Jenny, I really like the idea of adding a new column to our English newspaper.             Yours, Li Hua Ⅵ.读后续写 阅读下面短文,根据所给情节进行续写,使之构成一个完整的故事。 (2026浙江9+1联盟高二期中) When I was 13,I climbed my first mountain—a fairly gentle 3,900-foot peak near where I live in Surrey,British Columbia.I was overweight at the time and out of breath when I reached the summit.But I loved the challenge of conquering something big.Soon I’d climbed nearly 100 peaks.My parents were happy I’d finally found a hobby. I often go climbing with my friend Mel Olsen,whom I’d met on the Internet.Two years ago,on December 30,when I was 16,she and I drove to Oregon to tackle 11,240-foot Mount Hood.It’s safer to start winter climbs at night when there’s less risk of the sun melting the snowpack.That day,we started at 3 a.m.,following the paths alongside the ski runs.The temperature was about -10℃,and we wore layers we could easily remove.Along the way,we met two other climbers,and four of us moved on together. After about five hours,we reached Devil’s Kitchen,a plateau at about 10,000 feet,just before the final push to the top.By this point,the wind conditions were nasty.My exposed skin felt as though it were burning.The other climbers decided to turn back,but Mel and I went ahead.We had ice axes,helmets,and crampons(冰爪).We were prepared for the climb. The trail we followed grew narrower and steeper.At around 9 a.m.,we reached a patch of ice called an ice step.It was about three or four feet tall and sloped at a 75-degree angle.I volunteered to go first.I placed my left foot on the ice step.You gain a sense of the ice when you stick your axe and crampons into it,and it felt good. Confident I was safe,I put my full weight on it.Suddenly,I heard a crack,and a whole piece of ice broke off the step,right under my foot.In an instant,I fell backward.I could hear Mel calling my name as I fell down,bouncing off the rock and rolling down the mountain as if I were a character in a video game.I remember thinking,This is it.You’re done. 注意: 1.续写词数应为150个左右; 2.请按如下格式在相应位置作答。 I stuck out my arms and legs,grabbing at anything I could.             I lay there with a broken leg,while Mel knelt beside me,calling for an ambulance.               知识积累卡 一、重点单词 1.preventable adj.　　　　　　　　　　　  2.spark n.　　　　　　　　　　　  3.reasonable adj.　　　　　　　　　　　  二、词块速记 1.extreme heat 　　　　　　　　　　　  2.out of breath 　　　　　　　　　　　  3.grow narrower and steeper 　　　　　　　　　　　  4.place my left foot on the ice step 　　　　　　　　　　　  三、经典句式背诵 1.Confident I was safe,I put my full weight on it.(形容词作状语) 句意:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 2.I could hear Mel calling my name as I fell down,bouncing off the rock and rolling down the mountain as if I were a character in a video game.(读后续写之遇险) 句意:　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 参考答案 Ⅰ.1.status　2.vast　3.session　4.criteria　5.rare 6.altitude　7.thrived　8.elsewhere Ⅱ.1.mysterious　2.endangered　3.with　4.security 5.greeting　6.invasion 7.biological　8.prosperity 9.nutrition　10.comparison Ⅲ.1.On behalf of the Students’ Union　2.It’s my honor to stand here 3.organized by the Students’ Union　4.where Lizzy finally closed her eyes 5.What must be stressed Ⅳ.【语篇解读】本文是一篇说明文。文章主要介绍了高温气候给人类带来的危害与损失。 1.A　根据上文“Extreme heat can kill people...floods and earthquakes.”以及下文“The golden rules are to drink plenty of water,dress in cool clothes and stay in the shade if possible.”可知,设空处应是针对高温会杀死人类这一现象,提出“该如何在高温中生存下来”的方法。故选A项。 2.B　下文“Often after many months without rain,a single spark is all that is necessary to create a big fire.Wildfires can move at great speed and will destroy everything in their path.They can quickly change direction,which makes it very difficult for someone on the ground to escape.”说明高温会引发野外森林大火。设空处位于段首,对下文具有引出作用,下文是对设空处的解释阐述。故选B项。 3.G　下文“In 2010 such fires in Russia killed 62 people and destroyed about 23,000 square kilometers.A recent UN report suggests that the growing number of wildfires around the world may be contributing to global warming.”说明野火造成的极大危害与损失。由此可知上文设空处应是讲“如果不迅速采取行动”可能在短时间内造成巨大损失,从而引出下文。故选G项。 4.D　下文“Climate change causes drought;drought causes wildfires;and wildfires cause further climate change.”说明气候变化导致的恶性循环,由此可知上文设空处应是提出这种恶性循环,下文对上文设空处进行解释说明。故选D项。 5.C　根据前文“It is clear that the world is getting warmer.”以及后文“but it is reasonable to assume that this process is being speeded up by mankind’s release into the atmosphere of large amounts of greenhouse gas”可知,此处是在讲述全球变暖的过程。故选C项。 Ⅴ. Dear Jenny,  I really like the idea of adding a new column to our English newspaper.Between the two options,I’d like to vote for “Eco-actions on Campus”.  This column stands out because it serves as a platform to document our small but warm environmental deeds,such as sorting garbage into different bins every day,turning off unused lights to save electricity,or planting trees in the school garden.Not only does it give us an opportunity to practice English by writing our own experiences but it also encourages more students to join in environmental protection.Compared with Quizzes on Green Facts,it connects English learning with real-life actions,making the column more vivid and meaningful. I would appreciate it if you could adopt my suggestion. Yours, Li Hua Ⅵ.I stuck out my arms and legs,grabbing at anything I could.The wind screamed in my ears,and the cold bit into my face like fire.My body rolled faster and faster until,by pure instinct,I slammed my ice axe into the snow.It struck deep,jerking my arm painfully,but it held.My fall stopped.For a moment,I just hung there,trembling,the world silent except for my heartbeat.Then I heard Mel shouting my name from above.“Hold on!” she cried.I could see her figure moving carefully down the slope toward me.Together,inch by inch,we managed to reach a narrow ledge.  I lay there with a broken leg,while Mel knelt beside me,calling for an ambulance.She pressed her down jacket around my waist to keep me warm,her hand squeezing mine.“Help’s coming,” she said,voice steady even as her hands shook.Soon the ambulance arrived.On the way to hospital,I stared at the snow,thinking of the 100 peaks I’d climbed.I’d been so proud of “conquering” them,but this fall taught me:Climbing’s not about winning.It’s about respecting nature—and leaning on friends when you stumble.That lesson mattered more than any summit.  知识积累卡 一、1.可预防的,可避免的　2.火花,火星　3.合理的,适度的 二、1.极端高温　2.上气不接下气　3.变得越来越窄、越来越陡　4.把我的左脚踩在冰阶上 三、1.我确信自己是安全的,便把全身的重量都压了上去。 2.我摔倒时能听见梅尔在喊我的名字,我撞在岩石上,像游戏里的角色一样滚下了山。 学科网（北京）股份有限公司 $