Unit 7 When Tomorrow Comes（下）-2026-2027学年八年级英语上册知识点精讲（人教版）

Unit 7 When Tomorrow Comes 知识点精讲（下） disappear challenge,challenging creativity,creative 。单元核心词汇 mention accept influence impossible quality develop valuable public medical depend 。单元同步语法 will与be going to的用法区别 。单元文章对话 重点句型讲练 教材同步词汇全解全练 重点1 单元词汇 1.disappear/.drse'pre(r)/v.消失；不见 词形变化：disappears(第三人称单数)；disappeared(过去式/过去分词)； disappearing(现在分词) 词根词缀：dis-(否定)+appear(出现)一不出现一消失 例佝：The plane disappeared in the sky.飞机消失在空中。 2.challenge/tend3/n.挑战；v.向…挑战 词形变化：challenges(第三人称单数/复数)；challenged(过去式/过去分词)； challenging(现在分词/形容词) 例句：This math problem is a big challenge.这道数学题是一个大挑战。 The work is challenging but interesting..这项工作有挑战性但很有趣。 3.creativity/,kri:er'trveti/n.创造力；创造性 词形变化：create(v.创造)；creator(n.创造者) 词根词缀：creat.-(创造)+-ivity(名词后缀)一→创造力 形容词：creative /kri'ertv/adj.有创造力的 例句：e need creativity to solve problems.我们需要创造力来解决问题。 She is a creative artist..她是一位有创造力的艺术家： 4.mention/'menJn/v.提到；说起 词形变化：mentions(第三人称单数)；mentioned(过去式/过去分词)； mentioning(现在分词) 搭配：mention sth.tosb.向某人提及某事 例句：Don't mention it.不客气/别提了。 He mentioned his plan to me.他向我提到了他的计划。 5.accept/ak'sept/v.接受；承认 词形变化：accepts(第三人称单数)；accepted(过去式/过去分词)；accepting (现在分词) 反义词：refuse(拒绝) 例句：|accept your invitation.我接受你的邀请。 6.influence/'Influens/n.影响；v.影响 词形变化：influences(第三人称单数/复数)；influenced(过去式/过去分词)； influencing(现在分词) 搭配：have an influence on..对.有影响 例佝：Friends can influence each other..朋友之间会互相影响。 7.impossible/hm'ppsebl/adj.不可能的 词形变化：impossibility(n.不可能) 词根词缀：im-(不)+possible(何能的)一不可能的 反义词：possible(何能的) 例句：Nothing is impossible if you try.如果你尝试，一切皆有可能。 8.quality/'kwpleti/n.质量；品质 词形变化：qualities(复数) 例句：The quality of this product is good.这个产品的质量很好。 9.develop /dI'velep/v.发展；开发；养成 词形变化：develops(第三人称单数)；developed(过去式/过去分词)； developing(现在分词)；development(n.发展) 搭配：develop a habit养成习惯；develop a skill培养技能 例句：e should develop good reading habits.我们应该养成好的阅读习惯。 10.valuable/'vaeljuebl/adj..宝贵的；有价值的 词形变化：value(n.N.价值；重视)；valuably(adv.) 词根词缀：val-(价值)+-able(能.的)一有价值的 例佝：Time is valuable.时间很宝贵。 11.public/pblk/adj..公共的；公开的；n.公众 词形变化：publicly(adw.公开地) 搭配：in public公开地；当众 例句：Don't smoke in public places.不要在公共场所吸烟。 12.medical/'medrkl/adj..医疗的；医学的 词形变化：medicine(n.药；医学)；medically(adw.) 例句：He is a medical student..他是一个医学生。 13.depend/ct'pend/v.依赖；取决于 词形变化：depends(第三人称单数)；depended(过去式/过去分词)； depending(现在分词)；dependent(adj.依赖的)；independent(adj.独立的) 搭配：depend on/upon依靠；取决于 例佝：We depend on our parents.我们依赖父母。 It depends on the weather.这取决于天气。 考点通关 单元词汇 (一)单句填空（用所给词的适当形式填空） 1.I want to (make)friends with my new classmates. 2.Learning English can be a (challenge)for some students 3.The (create)of this artwork is amazing. 4.Our teacher often (mention)the importance of reading. 5.She (accept)the gift with a smile yesterday. 6.Good friends have a positive (influence)on each other. 7.It is (possible)to finish the work in one hour.It's too hard. 8.The (quality)of these apples is very high 9.We should (development)our speaking skills 10.This old photo is (value)to my family. 11.You shouldn't talk loudly in (publicly)places. 12.My uncle works in a (medicine)hospital 13.Children (depend)on parents for food and clothes. 14.The trip was (challenge)but we enjoyed it. 15.She is a (create)thinker. (二)短文填空 Can you imagine a world without animals?Some animals may 1. because of pollution.It is a big 2. for humans.We should 3. the fact that we need to protect them.Animals have a great 4._ on our environment.For example,bees help flowers grow.Without them,it would be 5 for many plants to live.Good 6. of soil and water are also important.We must 7. good habits to save nature.Time is 8. so we must act now. places like parks need our care.Even 10. research shows that protecting animals helps humans. 参考答案 1.disappear;2.challenge;3.creativity;4.mentions;5.accepted; (一)单句填空 6.influence;7.impossible;8.quality;9.develop;10.valuable;11.public; 12.medical;13.depend;14.challenging;15.creative (二)短文填空 1.disappear;2.challenge;3.accept;4.influence;5.impossible; 6.quality;7.develop;8.valuable;9.Public;10.medical 教材同步语法全解全练 重点2 单元语法 will与be going to的用法区别 一、定义与核心区别 项目 will be going to 基本含义 表示”将要”，常指临时决 表示"打算、计划”，或基 定、预测或意愿 于已有迹象的预测 通常指未来某个不确定的时 多指近期已经安排好的计 时间特征 间，或说话时才做的决定 划，或已有明显预兆的事情 口语化程度 正式与口语均可使用 更常用于日常口语 否定形式 will not(won't)+动词原形 be not going to+动词原 形 Be+主语+going to+动 疑问形式 Wi+主语+动词原形？ 词原形？ 二、 结构对比 结构 will be going to 肯定句 主语+am/is/are+going 主语+w+动词原形 to+动词原形 主语+will not(won't)+ 主语+am/is/are+not+ 否定句 动词原形 going to+动词原形 Am/Is/Are+主语+going 一般疑问句 Wl+主语+动词原形？ to+动词原形？ 特殊疑问词+w+主语+ 特殊疑问词+am/is/are+ 特殊疑问句 主语+going to+动词原 动词原形？ 形？ 三、用法精讲 1.表示"临时决定” 一用will例：-The phone is ringing.-"I answer it. 2.表示"事先计划、打算”一用be going to例：I'm going to visit my grandpa this weekend. 3.表示"客观预测”一will例：It will be sunny tomorrow. 4.表示"有迹象表明某事即将发生”一用be going to例：Look at the dark clouds! It's going to rain. 5.表示"意愿、承诺、威胁"一用will例：I will help you with your homework. 6.表示"计划做某事但可能还没具体安排”一常用be going to例：He is going to be a doctor when he grows up. 四、常见易错点 注意人称与be动词的匹配：Iam/he/she/itis/we/you/they are 两者后都接动词原形，但be going to中to不能省略 如果已经明确有具体时间或计划，be going to更自然；如果只是随口一说，用wⅵll 五、常用时间状语 时间状语 例句(wil训) 例句(be going to) I will go to school I am going to go to school tomorrow tomorrow. tomorrow. She is going to visit us next week She will visit us next week. next week. We'll watch TV this this evening We are going to watch TV evening this evening. Robots will do many in the future He is going to be a things. teacher in the future. 考点通关 单元语法 语法专练一：单项选择(8题) A.am going to B.will C.does A.will B.is going to C.are going to A.will B.am going to C.was A.isn't going to B.won't C.doesn't A.am going to B.will C.go to 6.We have a picnic next Saturday if it is fine.A.are going to B.will C. both A and B are possible A.will B.are going to C.were 8.-Why are you wearing that coat?-I go out.It's cold outside.A.will B.am going to C.do 语法专练二：语法填空(10题) 用will或be going to的适当形式填空（注意人称和时态） 1.l my grandparents this summer vacation.I have already bought the tickets. 2.-I'm so hungry.-I you a sandwich. 3.Look at that old man!He down! 4.We any classes tomorrow because of the holiday. 5.-Are you free this evening?-No.I my friend at the airport. 6.The weather report says it windy tomorrow. 7.He to the party if he is too busy. 8.They a new school in the village next year. 9.-Why is she so happy?-Because she_ a newjob next week. 10.I promise I late again. 参考答案 语法专练一：单项选择 1.B;2.B;3.B;4.B;5.B;6.C;7.B;8.B 1.am going to visit;2.will make;3.is going to fall;4 won't have are not going to have;5.am going to 语法专练二：语法填空 meet;6.will be is going to be;7.won't go is not going to go;8.are going to build;9.is going to get;10. will not be won't be A 教材同步文章句型精讲 重点3 文章句型 1.Are you curious about the future? 结构：be curious about..对.…感到好奇 中文：你对未来感到好奇吗？ 2.What do you think our life will be like in 50 years or more? 结构：What do you think+陈述语序句子？用来询问看法 短语：in50 years50年后 中文：你认为50年或更久以后我们的生活将会是什么样子？ 3.To answer this,you can read a sci-fi book. 结构：to answer this为目的状语，置于句首 中文：为了回答这个问题，你可以读一本科幻小说。 4.Science fiction gives us a chance to imagine what our future will be like. 结构：give sb.a chance to do sth.给某人一个机会做某事 短语：what our future will be like我们的未来将会是什么样子 中文：科幻小说给了我们一个机会去想象我们的未来会是什么样。 5.Anything is possible. 结构：主语+s+形容词（系表结构） 中文：一切皆有可能。 6.We can dream big. 短语：dream big有远大梦想 中文：我们可以大胆梦想。 7.Some people think there will be flying cars and robot servants. 结构：think+宾语从句(that可省略) 短语：flying cars飞行汽车；robot servants机器人仆人 中文：一些人认为将会有飞行汽车和机器人仆人。 8.Others believe we will learn more about strange aliens and other worlds. 结构：believe+宾语从句 短语：learn about了解；strange aliens奇怪的外星人 中文：其他人相信我们将会更多地了解奇怪的外星人和其他世界。 9.Sci-fi writers and their work can inspire us to create the future. 结构：inspire sb.to do sth.激励某人做某事 中文：科幻作家和他们的作品能激励我们去创造未来。 10.In 1945,a sci-fi author named Arthur C.Clarke wrote about a system of space stations. 短语：a system of..一套.…系统；space stations空间站 中文：1945年，一位名叫阿瑟C克拉克的科幻作家写到了空间站系统。 (11.He predicted the earth of the future would have many TV stations and people would send TV programmes around the world. 结构：predict+that宾语从句 短语：send programmes发送节目 中文：他预测未来的地球会有很多电视台，人们会把电视节目发送到世界各地。 12.This was before TV was a common item at home! 结构：before+从句（时间状语从句） 短语：a common item常见物品 中文：这是在电视成为家庭常见物品之前！ 13.In a short story by Clarke,he suggested people in the future would use a system to talk with others around the world. 结构：suggest+that宾语从句(suggest表示"建议/暗示”，此处是"暗示”) 短语：talk with others与其他人交谈 中文：在克粒克的一篇短篇小说中，他暗示未来的人们会用一种系统与世界各地的人 交谈。 14.The short story was actually the inspiration for the internet! 短语：the inspiration for....的灵感来源 中文：这篇短篇小说实际上是互联网的灵感来源！ 15.Science fiction can make us think about our world in new ways. 结构：make sb.do sth.使某人做某事 短语：in new ways以新的方式 中文：科幻小说能让我们以新的方式思考我们的世界。 16.Although many sci-fi stories are set in imaginary worlds or societies,they can help us better understand the real world. 结构：Although+从句（让步状语从句） 短语：are set in.以…为背景；imaginary worlds想象的世界 中文：虽然很多科幻故事设定在想象的世界或社会中，但它们能帮助我们更好地理解 真实世界。 17.They can also make us excited when we feel like we are living in a boring world. 结构：make+宾语+形容词(make sb.excited使某人兴奋) 短语：feel like+从句感觉好像 中文：当我们感觉自己生活在一个无聊的世界时，它们也能让我们感到兴奋。 18.Sci-fi inspires us and helps us to understand what it could be like. 结构：help sb..(to)do sth.帮助某人做某事 中文：科幻小说激励我们，并帮助我们理解未来可能会是什么样子。 考点通关 文章句型 练习-一：单项选择（从A、B、C、D中选择最佳答案） 1.Are you the future? A.curious about B.curious of C.curious for D.curious in 2.What do you think our life will in 50 years? A.be like B.like C.be D.look like 3.Science fiction gives us a chance what the future will be like A.imagine B.to imagine C.imagining D.imagined 4.Some people think there flying cars in the future. A.will have B.are C,will be D.is 5.Others believe we will learn more strange aliens. A.for B.about C.to D.with 6.Sci-fi writers can inspire us the future. A.create B.to create C.creating D.created 7.In 1945,a sci-fi author Arthur C.Clarke wrote about space stations. A.named B.name C.names D.naming 8.This was TV was a common item at home. A.after B.when C.before D.until 9.The short story was the inspiration the internet. A.to B.for C.of D.with 10.Science fiction can make us about our world in new ways. A.to think B.think C.thinking D.thought 练习二：完成句子（根据中文提示，每空一词） 1.你双对未来感到好奇吗？ Are you the future? 2.你认为50年后生活会是什么样子？ What do you think life will in 50 years? 3科幻小说给了我们一个机会去想象未来。 Sci-fi gives us a chance what the future will be like. 4.一切皆有可能。 is possible 5.我们可以大胆梦想。 We can 6.一些人认为将会有飞行汽车。 Some people think there flying cars. 7这本书激励我去创造未来。 This book inspires me the future. 8他预测人们会把电视节目发送到世界各地。 He predicted people TV programmes around the world. 9.这篇小说是互联网的灵感来源。 This story was the the internet. 10科幻小说让我们以新的方式思考世界。 Sci-fi makes us our world in new ways. 练习三：翻译句子（将中文翻译成英文，每句写在横线上） 1.你双对未来感到好奇吗？ 2科幻小说给了我们一个机会去想象未来。 3.一些认为会有机器人仆人。 4.阿瑟C克拉克写了一篇关于空间站的文章。 5.这篇短篇小说实际上是互联网的灵感来源。 6科幻小说能让我们以新的方式思考世界。 7.虽然故事设定在想象的世界，但它们帮助我们理解真实世界。 8.它们也能让我们感到兴奋。 参考答案 练习一：单项选择 1.A2.A3.B4C5.B6.B7.A8.C9.B10.B 1.curious about;2be like;3.to imagine;4.Anything; 练习二：完成句子 5.dream big;6.will be;7.to create;8.would send; 9.inspiration for;10.think about 1.Are you curious about the future? 2.Science fiction gives us a chance to imagine the future. 3.Some think there will be robot servants. 4.Arthur C.Clarke wrote an article about space stations. 练习三：翻译句子 5.This short story was actually the inspiration for the internet 6.Science fiction can make us think about our world in new ways. 7.Although the stories are set in imaginary worlds,they help us understand the real world. 8.They can also make us excited. 教材同步单元练习 一、阅读理解 A篇 What will life be like in 100 years?Scientists and writers have many ideas.Some say we will live on Mars.Others believe robots will do most of our work.But one thing is for sure-technology will change everything. In the future,smart homes will be common.Your fridge will order food when it runs out.Your mirror will check your health every morning.Doors will open when you walk near them.These are not just dreams.Many homes already have smart lights and doorbells. Transportation will also be different.Flying cars may replace()traditional cars. Hyperloop(超级高铁)will take you from Beijing to Shanghai in40 minutes.People might even use jetpacks(喷气背包)to fly to work！However,these new ways of traveling need clean energy.Scientists are working on solar-powered太阳能的)and hydrogen-powered(氢能的)vehicles. Education will change too.Students won't need to go to school every day.They can learn through VR(虚拟现实)glasses and Al teachers.A virtual classroom can take you to ancient Rome or the surface of the moon.Tests may become games,and homework may be projects about real-world problems. But the biggest change may be in medicine.Doctors will use nanobots纳米机器人)to repair our bodies from inside.People may live to 150 years old.Some scientists even say we might "upload"our brains to computers and live forever! However,not all changes are good.More machines mean fewer jobs for people. Privacy()may become a big problem.And if we depend too much on technology, we might forget how to do simple things. So,is the future bright or dark?It depends on how we use technology.As a famous saying goes,"With great power comes great responsibility."We need to think carefully before we change the world. ()1.What can a smart fridge do in the future? A.It can cook meals for you. B.It can order food automatically. C.It can check your health. D.It can open doors for you. ()2.Why are scientists working on new energy for transportation? A.Because flying cars use too much energy. B.Because traditional cars are too slow. C.Because new transportation needs clean energy. D.Because people want to travel faster. ()3.What is a possible problem mentioned in the passage? A.People will be too busy to use technology B.Technology may cause job losses and privacy issues. C.VR glasses are too expensive for students. D.Nanobots are dangerous for human health. ()4.What does the writer think of the future? A.It will be completely bright. B.It will be totally dark. C.It depends on how we use technology. D.It is impossible to predict. ()5.What is the best title for this passage? A.The Problems of Technology B.Life in the Future C.How to Use Technology Well D.Robots and Flying Cars B篇 Have you ever watched a science fiction movie about time travel?In these stories, people can go to the past or the future.But is time travel really possible?Scientists have different opinions. According to Einstein's theory理论)of relativity(相对论)，time is not the same everywhere.If you travel at a speed close to light,time will slow down for you.For example,if you spend a year in a spaceship moving near the speed of light,when you come back to Earth,10 years may have passed.This is called "time dilation )"So in a way,you can "travel"to the future. What about going to the past?That is much harder.Some scientists think there might be "wormholes ()in space.Wormholes are like tunnels that connect two different times.If we could find a wormhole,we might be able to go back to the past. But no one has ever found a wormhole.And even if we could go back,there is a big problem:the"grandfather paradox(祖父悖论)".If you go back and stop your grandfather from meeting your grandmother,you would never be born.Then how could you go back in time? Many movies and books show solutions to this problem.Some say that changing the past creates a different timeline(时间线)，so your own timeline stays safe.Others say you can only watch the past but not change it.However,these are just ideas. For now,time travel is only possible in stories.But who knows?In the future,scientists might find a way After all,things that seem impossible today may become possible tomorrow. ()1.What does "time dilation"mean? A.Time goes faster when you travel. B.Time slows down at high speed. C.Time stops completely in space. D.Time moves backwards. ()2.What is the biggest difficulty for traveling to the past? A.Wormholes are too dangerous. B.The grandfather paradox might happen. C.Spaceships are not fast enough. D.There is no energy for time travel. ()3.According to the passage,how can you "travel"to the future? A.By finding a wormhole. B.By traveling near the speed of light. C.By watching a science fiction movie. D.By using a time machine. ()4.What does the writer think about the possibility of time travel? A.It will never happen. B.It is already possible. C.It may become possible in the future. D.It is only a dream for kids. ()5.The passage is mainly about A.different theories about time travel B.how to build a time machine C.Einstein's life story D.famous time travel movies 二、完形填空 How will people live in 2100?It's hard to imagine,but scientists have some predictions. Let's take a look! First,robots will be 1.part of our daily lives.They will do housework,look after old people,and 2.teach children.Some robots may even become our friends. People will talk with robots just like they talk with humans.However,this also means many jobs will 3..Workers will need to learn new skills. Second,the way we eat will change.Scientists will create new kinds of food.For example,meat may be made in labs 4. farms.This can help protect animals and the environment.People might also eat 3D-printed food.Sounds 5._ doesn't it? Third,the environment will be a big challenge.The Earth is getting 6. because of pollution.In the future,we may have to live under the sea or on other planets.7. scientists are working hard to clean the air and water.They believe that with new technology,we can make the Earth a 8.place again. Fourth,education will be very different.Students will use Al 9. their studies. They won't need to memorize()so many facts because they can find information 10. Instead,they will learn how to think creatively and solve problems. In short,the future is full of 11.and opportunities().It's up to us to make it a good one. A.a B.an C.the D./ A.only B.even C.never D.hardly A.appear B.keep C.disappear D.improve A.instead of B.because of C.as for D.such as A.boring B.amazing C.terrible D.strange A.cooler B.warmer C.cleaner D.safer A.Luckily B.Unluckily C.Suddenly D.Quickly A.worse B.smaller C.better D.farther A.to B.with C.for D.by A.slowly B.easily C.carefully D.loudly A.problems B.questions C.challenges D.chances 三、阅读短文回答问题 In 1969,humans first landed on the moon.Now,many countries are planning to send people to Mars.Why Mars?Because Mars is the most Earth-like planet in our solar system ()It has a day and night cycle similar to Earth's.There is also water ice on Mars. But going to Mars is much harder than going to the moon.The trip takes about seven months.Astronauts will face many problems.They will be in a small spaceship for a long time.They may feel lonely and bored.Also,there is no air on Mars,so they must wear spacesuits when they go outside. Another big problem is food.Astronauts cannot carry enough food for the whole trip. They will need to grow their own food on Mars.Scientists are testing ways to grow vegetables in space.They have already grown lettuce()on the International Space Station. Homes on Mars will be different too.They will be built underground to protect people from space radiation(辐射).The homes will be made from Martian soil(土壤.3D printers will help build them. Many people dream of living on Mars.But it will take a lot of time,money,and hard work.Some experts say the first humans on Mars may arrive by 2040.Do you want to be one of them? 1.Why do scientists choose Mars to explore? 2.How long does it take to travel from Earth to Mars? 3.What problem do astronauts face when they stay in the spaceship? 4.How will astronauts get food on Mars? 5.Why will homes on Mars be built underground? 四、短文填空 用方框中所给单词的适当形式填空，使短文完整正确。（每个单词限用一次，每空限填一个单 词。) but,possible,home,travel,predict,think,science,develop,popular,reason,help,work What will the world be like in 2050?It's hard to say,but many 1.are trying to find the answer.They use computers to make predictions.Some predictions are about transportation.For example,people may 2.in flying cars.They will be faster and safer than today's cars.But there is a problem:Where will all these flying cars park?3.may need to have special "sky garages". Another prediction is about 4..Robots will do many jobs.They can 5.in factories,hospitals,and even schools.Some people worry that robots will take away their jobs.However,new jobs will also appear.People will need to learn how to 6. and repair robots. The 7.for these changes is technology.Technology is 8.very fast.Every year,there are new inventions.Some of them seem 9.today,but they will be common in the future. What do you 10. of these predictions?Are you excited or worried?The future is11. a mystery(),but one thing is certain:We are the ones who will create it.Let's 12. together to make a better world. 1. 2. 3 4. 5 6. 7 8. 9. 10. 11. 12 五、写作 话题：What will your life be like in20 years? 提示 1.你将住在哪里？和谁一起？ 2.你的工作可能是什么？ 3.你的日常生活会是什么样？ 4你对未来的生活有什么期待？ 要求：80词左右，语句通顺，语法正确。 一、阅读理 A篇：1.B2.C3.B4.C5.B 解 B篇：1.B2.B3.B4.C5.A 二、完形填 空 1.A2.B3.C4.A5.B6.B7.A8.C9.B10.B11.C 1.the most Earth-like planet in our solar system 2.seven months 三、阅读短 文回答问题 3.lonely and bored 4.grow their own food on Mars 5.to protect people from space radiation 四、短文填 1.scientists 2.travel 3.Homes 4.work 5.work 6.develop 7.reason 8. 空 developing 9.impossible 10.think 11.but 12.help 五、写作 范文： My Life in 20 Years In 20 years,I will be 35 years old.I think I will live in a smart house with my family.The house will have robots to help with housework.I will probably be a computer programmer.I will work from home most of the time.Every morning,I will exercise with my Al trainer.In the afternoon,I will design new apps.In the evening,I will use VR glasses to travel to different places with my children.I hope my future life will be full of joy and new technology.I can't wait!