北师大版九年级全一册英语Unit 8 Discoveries课文音频

Unit 8 Discoveries 翻译：第八单元 发现

Talk about scientific discoveries. 翻译：谈论科学发现。

Read about important discoveries and read an experiment report. 翻译：阅读有关重大发现的文章并读一份实验报告。

Listen to a speech. 翻译：听一个演讲。

Write about discovery or experience. 翻译：写一写发现或经历的故事。

Learn about conditionals. 翻译：学习条件句。

Getting Ready 翻译：课前准备

Look at the photos. 翻译：看一看这些照片。

What are the people doing? 翻译：这些人正在做什么？

What do you think they are trying to discover? 翻译：你认为他们正在试图发现什么？

Key Words 翻译：关键词

Discoveries 翻译：发现

chemistry 翻译：化学

do experiments 翻译：做实验

electricity 翻译：电

health 翻译：健康

lab 翻译：实验室

machine 翻译：机器

observe 翻译：观察

physics 翻译：物理学

research 翻译：研究

space 翻译：太空

technology 翻译：技术

Example 翻译：例子

I think the person in Photo A is observing the stars. 翻译：我认为照片A中的那个人正在观察星星。

Maybe he is trying to discover a new star. 翻译：也许他正在试图发现一颗新的星星。

Think about discoveries you know. 翻译：想想你所知道的发现。

Can you name some famous discoveries? 翻译：你能说出一些著名发现的名称吗？

Among these discoveries, which do you think are the most important ones? 翻译：在这些发现中，你认为哪些是最重要的呢？

Lesson 22 Famous Discoveries 翻译：第二十二课 著名发现

Warm-up 翻译：课前热身活动

What discovery do you think is the most interesting one? 翻译：你认为什么发现是最有趣的？

Example 翻译：例子

I think X-rays are the most interesting discovery. 翻译：我认为X射线是最有趣的发现。

Reading 翻译：阅读

Skim the text. 翻译：浏览课文。

Which discoveries does it discuss? 翻译：文中讨论了哪些发现？

When did these things happen? 翻译：这些事发生在什么时候？

Write the correct years. 翻译：写出正确的年份。

Event 翻译：事件

The structure of DNA was discovered. 翻译：DNA结构被发现。

Wilhelm Roentgen received the Nobel Prize. 翻译：威廉·伦琴获得了诺贝尔奖。

Scientists discovered DNA. 翻译：科学家们发现DNA。

Year 翻译：年份

What discoveries have influenced our lives most? 翻译：是什么发现对我们的生活影响最大？

Here's a list. 翻译：这里有一份列表。

Do you have any to add? 翻译：你有什么要添加的吗？

Antibiotics 翻译：抗生素

Three centuries ago, many children died very young because of different diseases. 翻译：三个世纪以前，许多孩子会因为不同的疾病而英年早逝。

Now with antibiotics, a lot of these diseases can be cured easily. 翻译：现在，有了抗生素，这些疾病中有许多都可以很容易被治愈。

However, we need to be careful about how we use antibiotics because if we do not use them correctly, they can cause serious health problems. 翻译：然而，我们需要当心使用抗生素的方式，因为如果我们没有正确地使用，它们可能会引起严重的健康问题。

DNA 翻译：

DNA is the building block of life and was discovered in 1869. 翻译：DNA是生命的构成部分，于1869年被发现。

Over many years, scientists have slowly learned more and more about DNA. 翻译：多年来，科学家们已经慢慢地对DNA有了越来越多的了解。

In 1928, scientists discovered that DNA passed on certain characteristics from parents to children. 翻译：1928年，科学家们发现DNA可以将父母身上的某些特征传给孩子。

In 1953, the famous structure of DNA was discovered. 翻译：1953年，著名的DNA结构被发现了。

Now, scientists have a map of our DNA that tells them a great deal about what we get from our parents. 翻译：现在，科学家们有一张我们的DNA图，这张图可以告诉他们大量有关我们从父母那儿继承的东西。

If we learn more about DNA, we will be able to treat more diseases. 翻译：如果我们对DNA可以了解得更多，我们将能够治疗更多的疾病。

X-rays 翻译：X射线

Wilhelm Roentgen, a German scientist, was the first to study and name X-rays in 1895 and in 1901. 翻译：德国科学家威廉·伦琴在1895年和1901年首次研究和命名了X射线。

He was awarded the first-ever Nobel Prize in Physics for this discovery. 翻译：他因此项发现荣获首届诺贝尔物理学奖。

X-rays go right through some things, like skin and wood, but are stopped by others, such as bones or metal. 翻译：X射线能穿透某些物质，如皮肤和木材，但会被其他物质阻挡，比如骨骼或金属。

This means that they can be used to see broken bones in people or things inside suitcases. 翻译：这意味着X射线可以用来观察人体内的骨折情况或行李箱内的物品。

With X-ray machines doctors can treat broken bones much more easily. 翻译：有了X光机，医生治疗骨折变得更加容易。

If we discover more about the human body, we can help people live longer and better lives. 翻译：如果我们对人体有了更多的发现，我们就可以帮助人们活得更长、更好。

Unit 8 Discoveries 翻译：第八单元 发现

Read the text again. 翻译：再读一遍课文。

Answer the questions below. 翻译：回答下列问题。

What effect do antibiotics have on how long people live? 翻译：抗生素对人们的寿命有什么影响？

Scientists discovered DNA in 1869. 翻译：1869年科学家们发现了DNA。

How many years later did they discover its structure? 翻译：他们在多少年后发现了DNA结构？

What can scientists know from the map of our DNA? 翻译：科学家们从我们的DNA图中可以知道些什么？

Who are X-rays useful for? 翻译：X射线对谁有用？

How do you know? 翻译：你是怎么知道的？

Grammar 翻译：语法 条件状语从句

Read the sentences from the text. 翻译：读这些课文中的句子。

Then try to find out the rules and complete the table. 翻译：然后试着找出规律并完成表格。

If we do not use them correctly, they can cause serious health problems. 翻译：如果我们没有正确地使用，它们可能就会引起严重的健康问题。

If we learn more about DNA, we will be able to treat more diseases. 翻译：如果我们对DNA可以了解得更多，我们将能够治疗更多的疾病。

If we discover more about the human body, we can help people live longer and better lives. 翻译：如果我们对人体有了更多的发现，我们就可以帮助人们活得更长、更好。

If I have time, I will visit my grandparents. 翻译：如果有时间的话，我将去看望我的祖父母。

If you have any questions, you can ask Kim for help. 翻译：如果有任何问题，你可以向金姆求助。

Grammar Summary 7, page 175. 翻译：详见第175页语法总结7。

Complete the sentences with the correct form of the verbs in brackets. 翻译：用括号内动词的正确形式完成这些句子。

If you go to bed late, you will feel tired the next day. 翻译：如果你很晚上床睡觉，第二天你就会感觉很累。

You can join the Chess Club if you are interested in it. 翻译：如果你对它感兴趣的话，你可以加入象棋俱乐部。

We will stay at home if it rains tomorrow. 翻译：如果明天下雨，我们就会待在家里。

If I finish the work early, I will play basketball with you. 翻译：如果我提早完成了工作，我就会跟你打篮球。

Complete the sentences with your own ideas. 翻译：用你自己的想法完成这些句子。

If I go to London, ______. 翻译：如果我去伦敦，______。

If I have a ten-day holiday, ______. 翻译：如果我有一个十天的假期，______。

If you don't work hard in school, ______. 翻译：如果你在学校不努力学习的话，______。

If you lend me your football, ______. 翻译：如果你把你的足球借给我，______。

If you call me, ______. 翻译：如果你给我打电话，______。

Speaking 翻译：口语

Pair Work 翻译：结对活动

Ask and answer these questions with your partner. 翻译：和你的搭档提问并回答这些问题。

What can / will you do if ... 翻译：如果......，你可以 / 将会做些什么？

there is a fire? 翻译：发生火灾？

there is an earthquake? 翻译：发生地震？

your bike is broken on your way to school? 翻译：在上学途中你的自行车坏了？

you get lost? 翻译：你迷路了？

Example 翻译：例子

Baining, what will you do if there is a fire? 翻译：白宁，如果发生火灾的话，你将会做什么？

I will stay calm and call 119. 翻译：我将会保持冷静，然后拨打119。

Group Work 翻译：小组活动

Talk about the discoveries in Exercise 2. 翻译：谈论一下练习2中的那些发现。

Which do you think is the most important? 翻译：你认为哪一项发现是最重要的？

Example 翻译：例子

I think X-rays are the most important discovery. 翻译：我认为X射线是最重要的发现。

Why? 翻译：为什么？

Because with X-rays, doctors can help fix broken bones more easily. 翻译：因为有了X射线，医生可以更容易地帮助修复断骨。

Lesson 23 Discovery of the Year 翻译：第二十三课 年度大发现

Warm-up 翻译：课前热身活动

Match the inventions with the inventors. 翻译：将这些发明物与其发明家进行匹配。

the light bulb 翻译：电灯泡

the telephone 翻译：电话

the plane 翻译：飞机

the paper 翻译：纸

Cai Lun 翻译：蔡伦

Thomas Edison 翻译：托马斯·爱迪生

The Wright brothers 翻译：莱特兄弟

Alexander Bell 翻译：亚历山大·贝尔

The following are statements from a speech. 翻译：下面是一次演讲中的陈述。

What might be the correct order? 翻译：其正确顺序可能是什么？

Guess. 翻译：猜猜吧。

Dr Millar says ... 翻译：米勒博士说......

Order 翻译：顺序

And above all, they never gave up. 翻译：最重要的是，他们决不放弃。

This discovery wasn't made easily. 翻译：取得这次发现并不容易。

So, in closing, I wish you a wonderful evening as we celebrate these great achievements. 翻译：所以最后，我祝你们在庆祝这些伟大成就的同时，拥有一个美好的夜晚。

Just like Charles Kettering, who said, "Believe and act as if it were impossible to fail. " 翻译：正如查尔斯·凯特灵所说的那样：“相信并行动起来，就像不可能失败一样。”

Welcome to the Roseland Centre. 翻译：欢迎来到玫瑰园中心。

It's an honour to be here tonight as we present the award for Discovery of the Year. 翻译：很荣幸今晚可以在此见证我们颁发年度大发现奖的时刻。

Dr Harold Millar is giving a speech at a meeting of the Academy of Sciences. 翻译：哈罗德·米勒博士正在科学院的一次会议上发表演讲。

Listening 翻译：听力

Listen to the speech. 翻译：听演讲。

Check the order of the statements. 翻译：核对一下那些陈述的顺序。

Listen to what Dr Millar says. 翻译：听米勒博士所说的话。

What is he trying to do in his speech? 翻译：他正试图在演讲中做什么？

to introduce Roseland Centre 翻译：介绍玫瑰园中心

to tell the listeners about the hard work of the award winners 翻译：给听众们讲述获奖者的艰苦工作

to tell the listeners the difficulties that he has had 翻译：告诉听众们他所遇到过的困难

to praise Chairman Wilson's achievements 翻译：赞扬威尔逊主席的成就

Unit 8 Discoveries 翻译：第八单元 发现

Listen again. 翻译：再听一遍录音。

Are these sentences true or false? 翻译：这些句子是正确还是错误？

How do you know? 翻译：你是怎么知道的？

The winners of the award have made some discoveries in medicine. 翻译：该奖项的得主已经在医学方面取得了一些发现。

It was not very difficult to decide who would get the award. 翻译：决定谁将获得这个奖项并不是很难。

All of the researchers worked hard. 翻译：所有的研究人员工作都很努力。

Chairman Wilson will present the award. 翻译：威尔逊主席将会颁发这一奖项。

Function 翻译：作用 演讲

Read the Key Expressions. 翻译：读这些重点表达。

Key Expressions: Making a formal speech 翻译：重点表达：发表正式演讲

Opening 翻译：开场白

Chairman Wilson, ladies and gentlemen, 翻译：威尔逊主席，女士们、先生们，

Welcome to the ... 翻译：欢迎来到......

It's an honour to be here tonight as we ... 翻译：很荣幸今晚可以在此见证我们......

Main body 翻译：正文

I want to take this time to share ... 翻译：我想趁这个时候分享......

I have great respect for ... 翻译：我非常尊重......

And above all, ... 翻译：最重要的是，......

Just like ... who said, ... 翻译：正如......所说......

While we honour you this evening, we mustn't forget ... 翻译：当我们今晚授予你荣誉的时候，我们绝不能忘记......

Closing 翻译：结束语

So, in closing, I wish you a wonderful evening as we ... 翻译：所以最后，我祝你们在......同时，拥有一个美好的夜晚。

Now, let's give a warm round of applause to ... 翻译：现在，让我们给予热烈的掌声......

Speaking 翻译：口语

Pair Work 翻译：结对活动

Imagine you are the principal of Jolly High School. 翻译：假设你是乔利中学的校长。

Choose one of the situations below. 翻译：选择下面的一个情景。

Discuss with your partner what you can say in the speech. 翻译：和你的搭档讨论一下你在演讲中可以说些什么。

You want to give a speech ... 翻译：你想发表演讲......

on the first day of school 翻译：在开学第一天

at a parents' meeting 翻译：在家长会上

at a school concert 翻译：在学校音乐会上

Example 翻译：例子

We can begin the speech by saying "Dear parents, teachers and students". 翻译：我们可以通过说“亲爱的家长们、老师们和同学们”来开始演讲。

Then we can say "Welcome to Jolly High School". 翻译：然后我们可以说“欢迎来到乔利中学”。

Your Turn 翻译：轮到你了

Write a short speech. 翻译：写一篇简短的演讲稿。

Then give your speech to the class. 翻译：然后向全班同学发表演讲。

Example 翻译：例子

Dear parents, teachers and students, 翻译：亲爱的家长们、老师们和同学们，

Welcome to Jolly High School, and welcome to our school concert. 翻译：欢迎来到乔利中学，欢迎来参加我们的学校音乐会。

It's an honour to have the famous songwriter Li Mengtao here. ... 翻译：很荣幸可以邀请到著名歌曲作家李孟涛来这儿。......

Lesson 24 An Experiment Report 翻译：第二十四课 一份实验报告

Warm-up 翻译：课前热身活动

Have you done any experiments before? 翻译：你以前做过什么实验吗？

What were they? 翻译：它们是什么呢？

Did you write an experiment report? 翻译：你写过实验报告吗？

Reading 翻译：阅读

Read the Reading Help. 翻译：读阅读辅导。

Read the experiment report and take notes on page 95. 翻译：读这份实验报告，并在第95页上面做笔记。

Reading Help: Taking notes 翻译：阅读辅导：做笔记

Skim the report quickly to understand the purpose of the experiment. 翻译：快速浏览这份报告，了解一下实验目的。

Look at the tables and pictures to get key information. 翻译：看看表格和图片，以获取关键信息。

Write down key words like numbers, dates and actions. 翻译：写下像数字、日期和动作这样的关键词。

Use short forms or symbols, e.g. >=bigger, x=not, □=because. 翻译：使用简易格式或符号，例如：＞等于更大，×等于不，□等于因为。

An Experiment Report on Growing Potato Plants 翻译：关于种植马铃薯的实验报告

Things prepared: 翻译：需要准备的东西：

a potato that has sprouts 翻译：一个长着幼芽的马铃薯

a flower pot with soil 翻译：一个装满土壤的花盆

a camera to record progress 翻译：一个可以记录进展的相机

Observation: 翻译：观察：

Day One 翻译：第一天

The colour of the soil looks darker because I have just watered it. 翻译：土壤的颜色看起来更黑，因为我刚刚给它浇了水。

In the centre of the pot, I can see a tiny sprout that has grown from the potato under the soil. 翻译：在花盆中央，我能看见土壤下面的马铃薯中长出了一棵极小的幼芽。

I'll call it Buddy. 翻译：我将它叫做巴迪。

Buddy is green and yellow. 翻译：巴迪又绿又黄。

I wonder how fast it will grow. 翻译：我想知道它生长得将会有多快。

Day Six 翻译：第六天

Without much change in the past six days, I finally see some new progress on Buddy as it has grown taller. 翻译：在过去的六天里没有多少变化，但我终于在巴迪身上看到一些新的进展了，因为它已经长高一点了。

It's exciting to see new life like this. 翻译：看到像这样的新生命真是令人兴奋。

I hope Buddy can grow faster. 翻译：我希望巴迪可以生长得更快。

Day Eleven 翻译：第十一天

Buddy is getting larger! 翻译：巴迪变得越来越大啦！

Three more new sprouts have grown around Buddy! 翻译：巴迪周围已经长出另外三棵幼芽啦！

Green leaves have grown on the new sprouts, but they have not fully grown yet. 翻译：这些幼芽上面长了些绿叶，但是它们还没有完全长出来。

I guess I need to be a bit more patient. 翻译：我想我需要再多一点耐心。

Day Thirteen 翻译：第十三天

Buddy continues to grow taller. 翻译：巴迪继续长高。

The leaves on the new sprouts have grown a bit. 翻译：那些幼芽上面的叶子已经长了一点儿。

I'm also excited to see more new sprouts that have grown from under the soil. 翻译：看到有更多的新幼芽从土壤下面长出来，我也感到很兴奋。

Day Fifteen 翻译：第十五天

Finally, the leaves on the other sprouts are 3 cm tall. 翻译：最后，其他幼芽上面的叶子有三厘米高。

They're so green. 翻译：它们是那么的绿。

I hope they will soon grow into new potatoes. 翻译：我希望它们很快就会长成新的马铃薯。

What I have learned 翻译：我学到的东西

It's really interesting to grow potatoes. 翻译：种马铃薯真的很有意思。

During these fifteen days, I have learned that growing potato plants needs plenty of water. 翻译：在这十五天里，我了解到种马铃薯需要大量的水。

If the soil is dry, the potato will fail to grow. 翻译：如果土壤干燥，马铃薯将会无法生长。

I have also learned that the temperature needs to be right. 翻译：我还了解到温度需要适宜。

If it is too cold, it won't grow. 翻译：如果太冷的话，它就不会生长。

I feel that growing plants is just like trying to succeed with anything in life - it takes not only time, but also lots of effort and patience. 翻译：我觉得种植植物就像努力取得人生中任何事情上的成功一样——不仅需要时间，而且还需要大量的努力和耐心。

Unit 8 Discoveries 翻译：第八单元 发现

Day 翻译：天

1 翻译：第一天

6 翻译：第六天

11 翻译：第十一天

13 翻译：第十三天

15 翻译：第十五天

Progress 翻译：进展

A tiny sprout called Buddy has grown. 翻译：一棵名叫巴迪的细小幼芽已经长了出来。

Buddy is taller than before. 翻译：巴迪比以前更高了。

Buddy is getting larger. 翻译：巴迪变得越来越大。

Three more new sprouts have grown around Buddy! 翻译：巴迪周围已经长出另外三棵幼芽啦！

Buddy continues to grow taller. 翻译：巴迪继续长高。

More new sprouts have grown. 翻译：更多的新幼芽已经长了出来。

The leaves on the other sprouts are 3 cm tall. 翻译：其他幼芽上面的叶子有三厘米高了。

Read the text again and answer the questions. 翻译：再读一遍课文，回答问题。

How does the writer feel when she sees the progress of the plant? 翻译：当作者看到那棵植物的进展时，她感觉怎么样？

What do you need to do to grow potato plants successfully? 翻译：你需要做些什么才可以成功种植马铃薯？

How is growing plants similar to trying to succeed in life? 翻译：种植植物与努力取得人生成功有何相似之处？

Your Opinion 翻译：你的观点

Do you think this is a good experiment for six-year-old kids? 翻译：你认为这对六岁的孩子来说是一个好实验吗？

Why or why not? 翻译：为什么是或为什么不是？

Speaking 翻译：口语

Pair work 翻译：结对活动

Choose a day from the experiment in the text. 翻译：从课文中的那个实验里选出一天。

Describe it for your partner to guess which day it is. 翻译：向你的搭档描述一下这一天，好让他猜猜是哪一天。

Then change roles. 翻译：然后更换角色。

Example 翻译：例子

A tiny sprout has grown from the potato under the soil. 翻译：一棵极小的幼芽已经从土壤下面的马铃薯中长了出来。

It's Day One. 翻译：这是第一天。

Communication Workshop 翻译：交流研习班

Reading 翻译：阅读

Read Rich's story and fill in the table below. 翻译：读里奇的故事，然后填写下列表格。

Learning from Discoveries 翻译：从发现中学习

When I was in junior high school, I was not good at sports because I was overweight. 翻译：当我上初中的时候，我并不擅长运动，因为我超重。

I was often laughed at by other students in my PE class. 翻译：我在体育课上经常被其他学生嘲笑。

Gradually, I came to believe that I did not have the talent for sports. 翻译：渐渐地，我开始认为我没有运动天赋。

One day, I was playing table tennis with a classmate in my PE class. 翻译：有一天，我正在体育课上和一位同学打乒乓球。

My teacher said I was playing well and asked me to show the other students how to play. 翻译：我的老师说我打得很好，还让我教其他学生怎样打。

I was very happy because it was the first time I had ever been praised by my PE teacher. 翻译：我非常高兴，因为这是我生平第一次被体育老师称赞。

From then on, I made up my mind to practise table tennis every day. 翻译：从那时起，我下定决心要每天练习乒乓球。

After a lot of practice, I became the best table tennis player in my class. 翻译：经过大量的训练之后，我成为了班上最棒的乒乓球球员。

I started to love sports and joined others in doing all kinds of sports: running, swimming, football, basketball, etc. 翻译：我开始热爱运动，还和其他人一起做着各种各样的运动：如跑步、游泳、足球、篮球等等。

One year later, I not only did well in my PE class but also lost 10 kg and became the star of my class at the school sports games. 翻译：一年后，我不仅在体育课上表现出色，而且还减掉了十公斤，成为了学校运动会上的班级之星。

The experience of going from failure to success has taught me that everyone can be successful if they work hard. 翻译：从失败走向成功的这一经历让我懂得了如果肯努力的话，人人都可以成功。

Before 翻译：以前

Personal experience 翻译：个人经历

After 翻译：后来

What was he like? 翻译：他是什么样子的？

What happened? 翻译：发生了什么事？

What did he learn? 翻译：他学到了什么？

Unit 8 Discoveries 翻译：第八单元 发现

In pairs, ask and answer questions about Rich's experience. 翻译：两人一组，就里奇的经历提问并回答问题。

Example 翻译：例子

What did Rich think about himself when he was in junior high school? 翻译：里奇在上初中的时候觉得自己怎么样？

He thought he could not do sports. 翻译：他觉得他不能做运动。

What happened one day during PE class? 翻译：有一天，在体育课上发生了什么事？

His teacher ... 翻译：他的老师......

He learned ... 翻译：他学会了......

Writing 翻译：写作

Think of a personal discovery or experience which has changed your life or from which you have learned something. 翻译：回想一次改变了你的生活或你从中学到了一些东西的个人发现或经历。

Then answer the questions below. 翻译：然后回答下列问题。

Before 翻译：以前

What were you like? 翻译：你是什么样子的？

How did you behave? 翻译：你表现如何？

What did you believe? 翻译：你相信了什么？

Personal discovery / experience 翻译：个人发现 / 经历

What happened? 翻译：发生了什么事？

When did it happen? 翻译：它是何时发生的？

After 翻译：后来

What was the result? 翻译：结果是什么？

Did it change your behaviour or beliefs? 翻译：它改变你的行为或信念了吗？

What did you learn from it? 翻译：你从中学到了些什么？

Write about your discovery or experience. 翻译：记述一下你的发现或经历。

Use your answers in Exercise 3 and the example in Exercise 1 to help you. 翻译：使用你在练习3中的答案和练习1中的例子可以帮助你。

My Discovery 翻译：我的发现

Experience 翻译：经历

Unit 8 Check Your Progress 翻译：第八单元 检查进度

A discovery is something that exists already and we learn about. 翻译：“发现”是某种已经存在并且我们得知了的东西。

An invention is a tool that is created by someone. 翻译：“发明”是一种被某人创造出来的工具。

Put the items in the box below into the correct list. 翻译：把下列方框中的物品填入正确的列表中。

paper 翻译：纸

electricity 翻译：电

light bulb 翻译：电灯泡

X-rays 翻译：X射线

DNA 翻译：

airplane 翻译：飞机

Invention 翻译：发明

Discovery 翻译：发现

Vocabulary ______ / 6 翻译：词汇 ______ / 6

Use words from the box below to complete the passage. 翻译：使用下列方框中的单词完成这篇短文。

treated 翻译：治疗

antibiotics 翻译：抗菌素，抗生素

diseases 翻译：疾病

DNA 翻译：

go through 翻译：通过

parents 翻译：父母

During the last hundred years, many new discoveries have changed our lives. 翻译：在最近的数百年里，有许多新发现已经改变了我们的生活。

Among them, antibiotics, DNA, and X-rays are three examples. 翻译：抗生素、DNA和X射线就是其中的三个例子。

With the discovery of antibiotics, a lot of diseases can be cured more easily. 翻译：随着抗生素的发现，许多疾病可以更容易被治愈了。

Similarly, with the discovery of DNA— the building block of life— scientists can tell a lot more about what we get from our parents so that many diseases can be explained, treated or even prevented. 翻译：同样地，随着DNA——生命的构成部分——的发现，科学家们可以讲述更多我们从父母身上所继承的东西，这样许多疾病都可以得到解释、治疗，甚至是预防。

X-rays are another example. 翻译：另一个例子是X射线。

As it can go through things like skin and wood but not things like bones or metal, doctors can use them to treat broken bones far more easily. 翻译：因为它可以通过像皮肤和木头这样的东西，但却不能通过像骨头或金属这样的东西，医生利用它们来治疗断骨可以容易得多。

Choose the best words to complete the sentences. 翻译：选择最佳单词，完成这些句子。

If she works hard, she will get into college. 翻译：如果她努力学习，她就会进入大学。

The dog will live inside if it is trained. 翻译：如果狗被训练的话，它会住在里面。

The land will be healthy if we take care of the soil. 翻译：如果我们爱护土壤，土地将会很健康。

Some snakes will kill you if you are bitten by them. 翻译：如果你被一些蛇咬了，它们可能会要了你的命。

If lightning strikes a tree, it will burn. 翻译：如果闪电击中了一棵树，这棵树就会烧起来。

You can stay for the weekend if you like. 翻译：如果你喜欢的话，你可以留下来过周末。

If you see him, give him this note. 翻译：如果你看见他，就把这张便条给他。

If the weather is fine, we will go swimming tomorrow. 翻译：如果天气好的话，我们明天就会去游泳。

Grammar ______ / 14 翻译：语法 ______ / 14

Fun Zone 4 Show Time! 翻译：开心地带四 表演时刻！

Match the people with the descriptions. 翻译：将这些人物与其描述进行匹配。

Thomas Edison 翻译：托马斯·爱迪生

Leonardo da Vinci 翻译：莱昂纳多·达·芬奇

The Wright Brothers 翻译：莱特兄弟

Isaac Newton 翻译：艾萨克·牛顿

Artist, scientist and engineer 翻译：艺术家，科学家兼工程师

His most famous painting is the Mona Lisa. 翻译：他最著名的一幅画是《蒙娜丽莎》。

He made notes and drawings for a tank, a helicopter and a submarine. 翻译：他对坦克、直升机和潜水艇做了些笔记并制作了图纸。

Inventors and pilots 翻译：发明家兼飞行员

They began by building and flying "gliders", light planes without engines. 翻译：他们是从建造并试飞“滑翔机”和没有发动机的轻型飞机开始的。

After many tests through the years, finally, on December 17, 1903 they successfully flew the first airplane. 翻译：经过那些年来的多次测试之后，1903年12月17日，他们终于成功使第一架飞机起飞了。

Mathematician and scientist 翻译：数学家兼科学家

He made great progress in advanced mathematics and showed that light is made up of different colours. 翻译：他在高等数学方面取得了巨大进步，证明了光是由不同颜色所组成的。

He also defined laws of gravity and motion, which later became the basis of modern physics. 翻译：他还给万有引力定律和物体的运动下了定义，这在后来成为了现代物理学的基础。

Inventor and businessman 翻译：发明家兼商人

Many people think he invented the first light bulb, but he actually created many things that people could use in their homes. 翻译：很多人认为他发明了第一个电灯泡，但实际上他还创造了许多人们可以在自己家里使用的东西。

He invented the first record player. 翻译：他发明了第一台留声机。

He also started one of the first electric companies in 1880. 翻译：1880年，他还创办了第一批电气公司中的其中一家。

Which invention is scientifically impossible? 翻译：哪一项发明从科学上来说是不可能的？

Which ones are real products? 翻译：哪些发明物是真实的产品？

Clocky 翻译：落跑闹钟

To stop the noise, you've got to find him! 翻译：要想阻止那股噪音，你就必须找到他！

With "Clocky", getting up in the morning is fun! 翻译：有了“落跑闹钟”，早晨起床就好玩了！

When you press the "off" button, Clocky moves off your bedside table onto the floor and hides somewhere in your bedroom. 翻译：当你按一下“关闭”这个按钮时，落跑闹钟就会从你的床头柜上滚到地板上，然后藏在卧室里的某个地方。

Fireplace with Waterfall 翻译：带有瀑布的壁炉

This fantastic new fireplace doesn't only keep you warm. 翻译：这个神奇的新壁炉不只可以为你取暖。

You can look at a beautiful waterfall in your living room and listen to the relaxing sound of water. 翻译：你还可以在客厅里看看漂亮的瀑布，听听令人放松的水声。

Teleport 翻译：远距传物

Do you hate the journey to school every morning? 翻译：你讨厌每天早晨的上学旅程吗？

With "Teleport"you can be there in a few seconds! 翻译：有了“远距传物”，你就可以在几秒之内到达那里啦！

Maximum range at the moment is 5km. 翻译：目前最大距离是5公里。

Canine Diving Suit 翻译：狗的潜水服

Dogs love swimming but never get the chance to explore underwater. 翻译：狗喜欢游泳，但却从来没有机会探索水底世界。

The next time you go underwater, take your dog with you in this fantastic new diving suit! 翻译：下次你去水底，就可以带上穿着这件神奇的新潜水服的狗啦！

Unit 8 Study Help 翻译：第八单元 学习辅导

Formal and Informal Language 翻译：正式与非正式语言

When you look up words in good dictionaries, you can see if they are formal or informal. 翻译：当你在好词典中查阅单词的时候，你可以看看它们是正式还是非正式的。

Example 翻译：例子

kid [C] (informal) a child 翻译：[可数名词]（非正式）小孩

When you write down new words and expressions, note if they are formal or informal. 翻译：当你写下新的单词和表达时，注意一下它们是正式还是非正式的。

Example 翻译：例子

Hi, Chris. 翻译：嗨，克里斯。

How's it going? 翻译：最近怎么样？

informal 翻译：非正式的

Good morning. 翻译：早上好。

How are you, Mr Tallen? 翻译：泰伦，你好吗？

formal 翻译：正规的

Make a list of informal words and expressions that you know. 翻译：列出一张你所知道的非正式单词和表达的清单。

Then write down their equivalents in formal language. 翻译：然后用正式语言写下它们的对等词。

Informal words and expressions 翻译：非正式单词和表达

Their equivalents in formal language 翻译：正式语言中的对等词

Unit Diary 翻译：单元日志

How well can you do these? 翻译：你能把这些完成得多好？

Language and Skills 翻译：语言和技能

I can understand the text about important discoveries. 翻译：我能理解有关重大发现的课文。

I can write conditional clauses. 翻译：我能写条件从句。

I know how to make a formal speech. 翻译：我知道如何发表正式演讲。

I know how to take notes while reading. 翻译：我知道如何在阅读时做笔记。

I can write about a personal discovery or experience which has changed my life. 翻译：我能记述一次改变了我的生活的个人发现或经历。

Study Skills 翻译：学习技能

I can tell the difference between formal and informal words or expressions with the help of a dictionary. 翻译：我能借助于词典分辨出正式与非正式的单词或表达。