冀教版八年级下册英语Unit 5 Great inventions课文音频

Unit 5 Great inventions 翻译：第五单元 伟大的发明

1 Inventions are great! 翻译：发明真伟大！

2 Listen to the conversation and circle the pictures of the inventions mentioned. 翻译：听对话，圈出提到的发明图片。

Ms Liu: Today, let's talk about inventions 翻译：刘老师：今天，我们来谈谈发明

and their roles in shaping our world. 翻译：及其在塑造我们世界中的作用。

Which invention do you think is the most important? 翻译：你认为哪项发明最重要？

Li Ming: I believe the invention of paper 翻译：李明：我相信纸的发明

has greatly influenced the development of human civilization. 翻译：极大地影响了人类文明的发展。

Song Hua: How about the telephone? 翻译：宋华：电话呢？

It helps people communicate with each other easily and quickly. 翻译：它帮助人们方便快捷地相互沟通。

Wang Mei: The light bulb is also an important invention. 翻译：王梅：电灯泡也是一项重要的发明。

It lights up the world. 翻译：它照亮了世界。

Li Lin: I think washing machines are a helpful invention, 翻译：李林：我觉得洗衣机是一项有用的发明，

and both electric and gas-powered cars are cool. 翻译：而且电动车和燃气汽车都很酷。

Ms Liu: Those are all great examples! 翻译：刘老师：这些都是很好的例子！

Can you think of any other inventions? 翻译：你们还能想到其他发明吗？

Wang Mei: Computers are very important. 翻译：王梅：电脑非常重要。

People can do so many things with a computer. 翻译：人们可以用电脑做很多事情。

Li Ming: And don't forget about the internet! 翻译：李明：别忘了互联网！

It connects people around the world 翻译：它连接了世界各地的人们，

and provides us with information, knowledge, and entertainment. 翻译：为我们提供信息、知识和娱乐。

Ms Liu: Absolutely! Computers and the internet have changed our lives. 翻译：刘老师：没错！电脑和互联网改变了我们的生活。

Now, if you could invent something, what would it be? 翻译：现在，如果你能发明一样东西，它会是什么？

Song Hua: I would invent a time machine 翻译：宋华：我会发明一台时光机，

to travel to different periods in history. 翻译：去历史上的不同时期旅行。

Li Lin: That sounds fascinating! 翻译：李林：听起来很迷人！

I would invent a robot to do chores for me. 翻译：我会发明一个机器人帮我做家务。

Ms Liu: Inventions come from imagination and creativity. 翻译：刘老师：发明源于想象力和创造力。

Keep dreaming and coming up with new ideas! 翻译：继续梦想，不断提出新想法吧！

2 Ways of travelling 翻译：出行方式

2 Read the passage and match each part with its main idea. 翻译：阅读文章并将各部分与其主要意思配对。

Long ago, many people did not travel far from home. 翻译：很久以前，许多人不会离家远行。

In fact, in the early days, 翻译：事实上，在早期，

a person might live their whole life in one village. 翻译：一个人可能在一个村庄里度过一生。

The first important invention in land travel was the wheel. 翻译：陆路出行中第一项重要的发明是轮子。

And then came the wagon. 翻译：然后是马车。

Humans began to have the power 翻译：人类开始有能力

to move and carry things across long distances. 翻译：远距离移动和运输物品。

The next was the train. 翻译：接下来是火车。

After the train came the invention of cars, buses, trucks, 翻译：火车之后发明了汽车、公共汽车、卡车

and other means of transportation. 翻译：和其他交通工具。

Humans and goods were able to travel farther than ever before. 翻译：人和货物能够比以往任何时候都走得更远。

Boats and ships provided another important way of travelling. 翻译：船只提供了另一种重要的出行方式。

The invention of the compass helped people explore more places. 翻译：指南针的发明帮助人们探索更多地方。

And canal systems made fast waterway transportation possible. 翻译：运河系统使得快速的水路运输成为可能。

Modern means of transportation, such as high- speed trains and airplanes, 翻译：现代交通工具，如高速列车和飞机，

help people travel faster and farther. 翻译：帮助人们旅行得更快、更远。

Eco- friendly electric cars are common 翻译：环保的电动汽车很常见，

and self-driving cars are in development. 翻译：自动驾驶汽车正在研发中。

People can even travel to space in spaceships. 翻译：人们甚至可以乘坐宇宙飞船前往太空。

Who knows what the future holds? 翻译：谁知道未来会怎样？

The development of transportation has made travelling much easier and faster. 翻译：交通的发展使旅行变得更加便捷和快速。

Every invention is a symbol of human creativity. 翻译：每一项发明都是人类创造力的象征。

Let's enjoy these developments 翻译：让我们享受这些发展，

and work for more great things in the future. 翻译：并为未来更多伟大的事物而努力。

3 Computers and the internet 翻译：电脑和互联网

2 Read the conversation and answer the questions. 翻译：阅读对话并回答问题。

Jenny wants to do her homework on the computer. 翻译：珍妮想在电脑上做作业。

But her mum is using it. 翻译：但她妈妈正在用。

Jenny: Mum, is it okay if I use the computer now? 翻译：珍妮：妈妈，我现在用电脑可以吗？

Mum: Okay. I just finished my work, so it's all yours. 翻译：妈妈：好的。我刚完成我的工作，所以现在是你的了。

Jenny, you're so lucky to have a computer. 翻译：珍妮，你有电脑真是太幸运了。

Jenny: Yes, I am. 翻译：珍妮：是的，我很幸运。

As it's connected to the internet, 翻译：因为它连接到了互联网，

it has made study and research much easier. 翻译：它使学习和研究变得容易多了。

Mum: This technology helps students a lot with their homework. 翻译：妈妈：这项技术对学生们做作业帮助很大。

But when I was a student, 翻译：但在我上学的时候，

computers were not widely used. 翻译：电脑还没有广泛使用。

And the internet was not as convenient as it is now. 翻译：互联网也没有现在这么方便。

I couldn't imagine having such a convenient tool for getting the job done. 翻译：我无法想象拥有这么方便的工具来完成工作。

Jenny: Mum, how was homework done in those days? 翻译：珍妮：妈妈，那时候作业是怎么做的？

Mum: Well, everything was written by hand on paper. 翻译：妈妈：嗯，所有东西都是手写在纸上的。

When I didn't know how to spell a word, 翻译：当我不知道如何拼写一个单词时，

I had to look it up in a printed dictionary. 翻译：我不得不在印刷词典里查。

When I needed to do any research, 翻译：当我需要做任何研究时，

I had to go to the library. 翻译：我不得不去图书馆。

Jenny: But now with the internet 翻译：珍妮：但现在有了互联网，

we can simply search for everything online. 翻译：我们只需在网上搜索一切。

And there's always new technology, like AI. 翻译：而且总有新技术，比如人工智能。

Mum: Yes, and you can easily find definitions and examples for any word. 翻译：妈妈：是的，你可以轻松找到任何单词的定义和例子。

The internet and the computer are amazing inventions with many applications. 翻译：互联网和电脑是了不起的发明，有许多应用。

Jenny: I agree with you on that, Mum. 翻译：珍妮：在这一点上我同意你的看法，妈妈。

4 Thank you, Mr Pasteur! 翻译：谢谢你，巴斯德先生！

2 Read the passage and answer the questions. 翻译：阅读文章并回答问题。

While pouring a glass of milk, 翻译：杰里米倒一杯牛奶时，

Jeremy notices something written on the package. 翻译：注意到包装上写着一些字。

Jeremy: Hey, Mum! I just noticed a big word on the carton. 翻译：杰里米：嘿，妈妈！我刚注意到纸盒上有个大字。

PASTEURIZED. What does it mean? 翻译：“巴氏消毒的”。这是什么意思？

Mum: Well, if something is pasteurized, 翻译：妈妈：嗯，如果某物经过巴氏消毒，

it means that it has gone through a process of heating to a certain temperature. 翻译：意味着它经过了加热到一定温度的过程。

Jeremy: Why do we heat milk? 翻译：杰里米：我们为什么要加热牛奶？

Mum: Raw milk has dangerous bacteria and germs. 翻译：妈妈：生牛奶中含有危险的细菌和病菌。

We must heat milk to 72 degrees Celsius for 15 seconds to kill them. 翻译：我们必须将牛奶加热到72摄氏度并保持15秒来杀死它们。

Jeremy: How did people discover that? 翻译：杰里米：人们是怎么发现这一点的？

Mum: Many years ago, people sometimes got sick when they drank milk. 翻译：妈妈：许多年前，人们有时喝牛奶会生病。

Some of them even died because of the bad bacteria. 翻译：有些人甚至因为有害细菌而死亡。

Jeremy: Wow! Who created this heating process? 翻译：杰里米：哇！谁发明了这个加热过程？

A dairy farmer or a scientist? 翻译：是奶农还是科学家？

Mum: It was Louis Pasteur, a French microbiologist. 翻译：妈妈：是路易·巴斯德，一位法国微生物学家。

He invented the process around 1864. 翻译：他在1864年左右发明了这个过程。

Jeremy: That's a long time ago! 翻译：杰里米：那是很久以前了！

Mum: Mr Pasteur was one of the greatest scientists. 翻译：妈妈：巴斯德先生是最伟大的科学家之一。

His work saved millions of lives around the world. 翻译：他的工作挽救了全世界数百万人的生命。

He was famous for his work on germs. 翻译：他因在病菌方面的研究而闻名。

Jeremy: Well, here's a toast to you, Mr Pasteur. 翻译：杰里米：那么，敬你一杯，巴斯德先生。

Thank you for making the world much safer. 翻译：谢谢你让世界变得更安全。

5 Refrigerator timeline 翻译：冰箱时间线

1 Read the timeline and tick the inventor of the first refrigerator. 翻译：阅读时间线并勾选出第一台冰箱的发明者。

Ancient times: Ancient China, Greece, and Rome used ice or snow 翻译：古代： 古代中国、希腊和罗马使用冰或雪

to preserve food by freezing or chilling it. 翻译：通过冷冻或冷藏的方式来保存食物。

1600s: Icehouses were used to preserve food all year round. 翻译：17世纪： 冰窖被用来全年保存食物。

1748: William Cullen did an experiment on artificial refrigeration. 翻译：1748年： 威廉·卡伦进行了一项关于人工制冷的实验。

1805: Oliver Evans designed the first refrigeration machine. 翻译：1805年： 奥利弗·埃文斯设计了第一台制冷机器。

1890s: Iceboxes became popular. 翻译：19世纪90年代： 冰盒变得流行起来。

They were smaller icehouses meant for home use. 翻译：它们是用于家庭使用的更小的冰窖。

1913: Fred W. Wolf invented the first home electric refrigerator. 翻译：1913年： 弗雷德·W·沃尔夫发明了第一台家用电动冰箱。

1918: Mass production of home refrigerators began. 翻译：1918年： 家用冰箱开始大规模生产。

1920s: Refrigerators became popular in some countries. 翻译：20世纪20年代： 冰箱在一些国家变得流行。

1940s: Freezer compartments were added. 翻译：20世纪40年代： 增加了冷冻室。

1980s: Water dispensers were added. 翻译：20世纪80年代： 增加了饮水机。

1996: Refrigerators became more energy-saving. 翻译：1996年： 冰箱变得更加节能。

Understanding cultures 翻译：文化理解

Great inventions of ancient China 翻译：古代中国的伟大发明

1 Read the passage and answer the questions. 翻译：阅读文章并回答问题。

We all know the most significant inventions of ancient China-- 翻译：我们都知道古代中国最重要的发明——

paper-making, printing, gunpowder, and the compass. 翻译：造纸术、印刷术、火药和指南针。

However, Chinese people also made many other fascinating inventions. 翻译：然而，中国人民还创造了许多其他迷人的发明。

Have you used the abacus? 翻译：你用过算盘吗？

It was invented in China over 2,500 years ago. 翻译：它是2500多年前在中国发明的。

It became the primary tool used by merchants and bankers to calculate. 翻译：它成为商人和银行家用来计算的主要工具。

Tofu originated in China. 翻译：豆腐起源于中国。

It is a good source of protein. 翻译：它是一个很好的蛋白质来源。

Tofu is rich in minerals 翻译：豆腐富含矿物质，

that are important for building strong bones and reducing the risk of some diseases. 翻译：这些矿物质对强健骨骼和降低某些疾病的风险很重要。

It has been an important part of Chinese cuisine for over 2,000 years 翻译：2000多年来，它一直是中国菜的重要组成部分，

and is now enjoyed worldwide. 翻译：如今在世界各地都很受欢迎。

Tea making is another invention from China. 翻译：制茶是中国的另一项发明。

It is said that Shennong, an ancient Chinese emperor, discovered tea when a tea leaf accidentally fell into a pot of boiling water. 翻译：据说，当一片茶叶偶然掉入一锅开水中时，中国古代皇帝--神农发现了茶。