Unit 8 Imagine that! 单元知识点梳理 沪教版新教材英语八年级下册

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Unit 8 Imagine that! 单元知识点梳理 沪教版新教材英语八年级下册

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Unit 8 Imagine that! 单元知识点梳理
一、重点单词
1. imagine / m d n/ v. 想象;设想(短语:imagine doing sth. 想象做某事;imagine that... 设想……)
2. imagination / m d ne n/ n. 想象力;想象(短语:use one’s imagination 发挥想象力)
3. creative /kri e t v/ adj. 有创造力的;创造性的(名词:creativity;副词:creatively)
4. create /kri e t/ v. 创造;创作(名词:creation;短语:create new things 创造新事物)
5. idea /a d / n. 想法;主意;概念(短语:have an idea 有主意;a good idea 好主意)
6. think /θ k/ v. 想;认为;思考(过去式/过去分词:thought;短语:think up 想出;think about 思考)
7. invent / n vent/ v. 发明;创造(名词:invention/inventor;短语:invent new things 发明新事物)
8. invent / n vent/ v. 发明;虚构(区别create:侧重创造新事物)
9. possible / p s bl/ adj. 可能的(副词:possibly;反义词:impossible;短语:it’s possible to do sth. 做某事是可能的)
10. impossible / m p s bl/ adj. 不可能的(前缀im-表否定;短语:it’s impossible to do sth. 做某事是不可能的)
11. future / fju t (r)/ n. 未来;将来 adj. 未来的(短语:in the future 在未来;future life 未来生活)
12. life /la f/ n. 生活;生命(复数:lives;短语:daily life 日常生活;future life 未来生活)
13. change /t e nd / v. 改变;变化 n. 变化;改变(短语:change the world 改变世界;great changes 巨大的变化)
14. world /w ld/ n. 世界;领域(短语:the whole world 全世界;change the world 改变世界)
15. technology /tek n l d i/ n. 科技;技术(形容词:technological;短语:high technology 高科技)
16. fly /fla / v. 飞;飞行;驾驶(过去式:flew;过去分词:flown;短语:fly in the sky 在天空飞)
17. travel / tr vl/ v.&n. 旅行;游历(短语:travel around the world 环游世界;time travel 时光旅行)
18. live /l v/ v. 居住;生活 adj. 活的(短语:live on the moon 住在月球上;live a happy life 过幸福生活)
19. robot / r b t/ n. 机器人(短语:smart robot 智能机器人;robot helper 机器人助手)
20. smart /smɑ t/ adj. 聪明的;智能的(比较级:smarter;短语:smart phone 智能手机;smart robot 智能机器人)
21. help /help/ v.&n. 帮助;援助(短语:help sb. (to) do sth. 帮助某人做某事;ask for help 寻求帮助)
22. human / hju m n/ n. 人类 adj. 人的;人类的(复数:humans;短语:human life 人类生活)
23. dream /dri m/ v. 梦想;做梦 n. 梦想(过去式/过去分词:dreamed/dreamt;短语:dream of doing sth. 梦想做某事)
24. believe /b li v/ v. 相信;认为(短语:believe in oneself 相信自己;believe that... 认为……)
25. hope /h p/ v.&n. 希望(短语:hope to do sth. 希望做某事;hope that... 希望……)
26. achieve / t i v/ v. 实现;达到(短语:achieve one’s dream 实现某人的梦想)
27. try /tra / v. 尝试;努力(短语:try one’s best 尽某人最大努力;try to do sth. 努力做某事)
28. hard /hɑ d/ adv. 努力地 adj. 坚硬的;困难的(短语:work hard 努力工作;hard work 艰苦的工作)
29. together /t ɡe (r)/ adv. 一起;共同(短语:work together 共同努力;get together 相聚)
30. magic / m d k/ adj. 有魔力的;神奇的 n. 魔法(短语:magic world 魔法世界;magic power 魔力)
二、重点短语
1. Imagine that! 想象一下!
2. use one’s imagination 发挥想象力
3. imagine doing sth. 想象做某事
4. have a good idea 有一个好主意
5. think up new ideas 想出新主意
6. create new things 创造新事物
7. invent new machines 发明新机器
8. it’s possible to do sth. 做某事是可能的
9. in the future 在未来
10. future life 未来生活
11. change the world 改变世界
12. high technology 高科技
13. fly in the sky 在天空中飞行
14. travel around the world 环游世界
15. live on the moon 住在月球上
16. smart robot 智能机器人
17. robot helper 机器人助手
18. help sb. do sth. 帮助某人做某事
19. dream of doing sth. 梦想做某事
20. achieve one’s dream 实现某人的梦想
21. believe in oneself 相信自己
22. try one’s best 尽某人最大努力
23. work hard 努力学习/工作
24. work together 共同努力
25. magic world 神奇的世界
三、重点句型
1. —Can you imagine living on the moon in the future
—Yes, I can. I think it will be very interesting.
(—你能想象未来住在月球上吗?—是的,我能。我认为那会非常有趣。)
2. We should use our imagination to think up more creative ideas.
(我们应该发挥想象力,想出更多有创意的主意。)
3. It’s possible for humans to travel to Mars with the development of high technology.
(随着高科技的发展,人类去火星旅行是可能的。)
4. If we work hard, we can achieve our dreams and create a better world.
(如果我们努力奋斗,我们就能实现梦想,创造更美好的世界。)(if条件状语从句)
5. I dream of flying in the sky like a bird and traveling around the world in a day.
(我梦想像小鸟一样在天空飞翔,一天内环游世界。)
6. Unless we use our imagination, we can’t think up new and good ideas.
(除非我们发挥想象力,否则我们想不出新颖的好主意。)(unless状语从句)
7. As long as we believe in ourselves, nothing is impossible.
(只要我们相信自己,没有什么是不可能的。)(as long as状语从句)
8. Smart robots will help humans do many difficult things in the future.
(未来智能机器人会帮助人类做许多困难的事。)
9. I imagine that our daily life will change a lot with more new inventions.
(我设想,随着更多新发明的出现,我们的日常生活会发生巨大变化。)
10. We hope that we can invent more useful things to make our life easier.
(我们希望能发明更多有用的东西,让我们的生活更便捷。)
四、重点词汇辨析
1. imagine & think & suppose
词汇 含义与用法 核心搭配 例句
imagine 侧重“想象、设想”,后接doing sth./从句,指脑海中构建未发生的画面 imagine doing sth., imagine that... I can imagine living in a smart house in the future.(我能想象未来住在智能房子里。)
think 泛指“想、思考、认为”,后接to do sth./从句,侧重思维过程 think about, think up, think that... She is thinking about a new idea for the project.(她正在为这个项目思考新主意。)
suppose 侧重“假定、猜想”,后接从句,指基于推测的想法 suppose that..., I suppose so I suppose that robots will replace humans to do some work.(我猜想机器人会代替人类做一些工作。)
2. possible & probable & likely
词汇 含义与可能性 常用结构 例句
possible 表“可能的”,可能性中等,不能用人作主语 It’s possible (for sb.) to do sth./It’s possible that... It’s possible to finish the work in an hour.(一小时内完成这项工作是可能的。)
probable 表“很可能的”,可能性比possible大,不能用人作主语 It’s probable that... It’s probable that it will rain tomorrow.(明天很可能会下雨。)
likely 表“有可能的”,可指人/物作主语,可能性可大可小 sb./sth. is likely to do sth./It’s likely that... He is likely to win the competition.(他有可能赢得比赛。)
3. invent & create & discover
词汇 含义侧重 适用对象 例句
invent 强调“发明”,创造原本不存在的新事物、新工具 机器、发明、方法等 Edison invented the light bulb more than 100 years ago.(爱迪生一百多年前发明了电灯泡。)
create 强调“创造、创作”,侧重从无到有构建,可指抽象/具体事物 作品、事物、机会、世界等 Artists create beautiful paintings with their imagination.(艺术家们用想象力创作美丽的画作。)
discover 强调“发现”,找到原本存在但未被人知晓的事物 行星、规律、真相、地点等 Scientists discovered a new kind of plant in the forest.(科学家们在森林里发现了一种新植物。)
4. dream (v.) & hope (v.)
词汇 含义与实现可能性 核心搭配 例句
dream 侧重“梦想”,实现可能性可大可小,常指美好的憧憬 dream of doing sth., dream that... He dreams of becoming a scientist and inventing new things.(他梦想成为一名科学家,发明新事物。)
hope 侧重“希望”,实现可能性较大,指切合实际的期待 hope to do sth., hope that... We hope to have a smart robot at home in the future.(我们希望未来家里能有一个智能机器人。)
5. if & unless
词汇 含义 句式转换 例句
if 表“如果”,引导条件状语从句,表肯定条件 直接引导条件句 If you study hard, you will get good grades.(如果你努力学习,你会取得好成绩。)
unless 表“除非;如果不”,引导条件状语从句,表否定条件 = if...not Unless you try your best, you won’t achieve your dream.(=If you don’t try your best, you won’t achieve your dream.)
五、重点语法
状语从句(if/unless/as long as引导的条件状语从句)
本单元核心语法,聚焦引导条件状语从句的三大连词if/unless/as long as,掌握主将从现时态规则,贴合“想象未来的条件与结果”单元话题,掌握基础用法与句式转换。
1. 基本概念
- 条件状语从句:用来表示主句动作发生的条件,由if/unless/as long as等连词引导,从句可置于句首(用逗号隔开)或句末。
- 核心时态规则:主将从现——主句用一般将来时/情态动词(can/may/must)/祈使句,从句用一般现在时表将来。
2. 三大连词的用法(教材核心考点)
(1)if 引导的条件状语从句
- 含义:如果,引导肯定的条件,表示“满足这个条件,就会发生主句的结果”。
- 结构:If + 一般现在时,主句(will/can/may + 动词原形/祈使句)
- 例句:
If we use our imagination, we can think up more creative ideas.(如果我们发挥想象力,我们就能想出更多有创意的主意。)
We will change the world if we work hard together.(如果我们共同努力,我们将会改变世界。)
(2)unless 引导的条件状语从句
- 含义:除非;如果不,引导否定的条件,相当于if...not,表示“不满足这个条件,就会发生主句的结果”。
- 结构:Unless + 一般现在时,主句(will/can/may + 动词原形/否定形式)
- 例句:
Unless we try our best, we won’t achieve our dreams.(除非我们尽最大努力,否则我们无法实现梦想。)
= If we don’t try our best, we won’t achieve our dreams.
You can’t create new things unless you use your imagination.(如果你不发挥想象力,你就无法创造新事物。)
(3)as long as 引导的条件状语从句
- 含义:只要,引导条件,强调“只要满足这个条件,就会发生主句的结果”,条件意味比if更强烈。
- 结构:As long as + 一般现在时,主句(will/can/may + 动词原形)
- 例句:
As long as we believe in ourselves, we can do anything.(只要我们相信自己,我们就能做成任何事。)
We will live a better life as long as we keep creating.(只要我们持续创造,我们就会过上更好的生活。)
3. 核心注意事项(贴合教材要求,不超纲)
1. 时态绝对核心:无论连词是if/unless/as long as,从句永远用一般现在时,主句用将来时/情态动词/祈使句,切记不可主从句都用将来时。
错误:If we will work hard, we will succeed.
正确:If we work hard, we will succeed.
2. 从句位置:置于句首时,必须用逗号与主句隔开;置于句末时,不用加逗号。
例:As long as you practice, you can improve your imagination.(从句末,无逗号)
例:Unless you give up, your dream will come true.(从句首,有逗号)
3. unless 不可与not连用,避免双重否定(易错点)。
错误:Unless you don’t give up, you will succeed.
正确:Unless you give up, you will succeed.
4. 即时练(教材语境)
用if/unless/as long as填空,并用动词适当形式填空:
1. ______ we ______ (use) our imagination, we ______ (think up) more good ideas.
2. ______ you ______ (try) your best, you ______ (not achieve) your dream.
3. ______ we ______ (believe) in ourselves, nothing ______ (be) impossible.
(答案:1. If; use; will think up 2. Unless; try; won’t achieve 3. As long as; believe; is)
六、写作指导(未来想象/创意畅想类短文)
1. 核心写作结构(贴合单元写作任务:写一篇畅想未来生活/想象未来发明的短文,表达自己的创意与设想)
部分 内容要点 单元常用表达
开头 点明主题,引出“想象未来”的话题,表达自己对未来的期待 Imagination is very important for us. It can help us create a better future. Today I want to imagine what our life will be like in the future. / With the development of high technology, our future life will be very different from now.
主体 分2-3点展开: ① 未来生活的具体变化(居住、出行、学习、生活等); ② 未来的新发明/新科技(智能机器人、太空旅行、智能房子等); ③ 实现这些想象的条件(努力学习、发挥想象力、科技创新等) First, I imagine that we will live on the moon or Mars in the future. Second, smart robots will help us do all the difficult work. We can travel around the world in a few hours by flying cars. If we study hard and use our imagination, we can invent these new things.
结尾 总结观点,表达对未来的憧憬,强调想象力和努力的重要性 I believe our future life will be more wonderful if we keep creating and working hard. Imagination is the key to changing the world. We should use our imagination and try our best to make our dreams come true.
2. 范文示例
My Imagination of Future Life
Imagination is a magical power. It can make us think up new ideas and look forward to a better future. I often imagine what our life will be like in 100 years, and I think it will be very different and wonderful.
First, I imagine that humans will not only live on the Earth but also on the moon or Mars. The houses there will be smart and beautiful. They can change their size and color according to our needs. Second, smart robots will be our best helpers. They will help us do all the difficult and boring work, such as cleaning the house, cooking food and washing clothes. We will have more free time to do what we like. Third, the way we travel will change a lot. Flying cars will be very common. We can fly in the sky and travel around the world in just a few hours. It will be very easy and interesting.
Of course, these beautiful imaginations can’t come true easily. If we don’t study hard, we can’t develop high technology. Unless we use our imagination, we can’t invent new and useful things. As long as we all work hard together and keep our creativity, I believe all these imaginations will become real one day.
Future life is full of possibilities. Imagination is the first step to create the future. Let’s use our imagination and try our best to make our world more beautiful and wonderful.

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