预课英语点读

Unit 5 How do inventions change our lives?

单词点读

invention
[ɪnˈvenʃn]

中文
发明

例句
They are the most basic inventions.
slide
[slaɪd]

中文
滑梯

例句
A slide is a ramp.
seesaw
[ˈsiː sɔː , ˈsiːsɔː]

中文
跷跷板

例句
When you ride on a seesaw in the playground, you are using a lever.
*watch
[wɒtʃ]

中文
手表

例句
Inside an old clock or watch, you can also see tiny wheels.
lever
[ˈliːvə(r)]

中文
杠杆

例句
A bottle opener is a lever.
wheel
[wiːl]

中文
轮子

例句
We use wheels every day on cars, trucks and bicycles.
simple
[ˈsɪmpl]

中文
简单的

例句
What are simple machines?
machine
[məˈʃiːn]

中文
机器

例句
What are simple machines?
basic
[ˈbeɪsɪk]

中文
基本的；基础的

例句
They are the most basic inventions.
everyday
[ˈevrideɪ]

中文
每天的

例句
Many everyday inventions are levers.
*playground
[ˈpleɪɡraʊnd]

中文
游乐场

例句
When you ride on a seesaw in the playground, you are using a lever.
point
[pɔɪnt]

中文
尖端；点

例句
There is a point in the middle.
truck
[trʌk]

中文
卡车

例句
We use wheels every day on cars, trucks and bicycles.
inside
[ˌɪnˈsaɪd]

中文
在…… 里

例句
Inside an old clock or watch, you can also see tiny wheels.
tiny
[ˈtaɪni]

中文
极小的

例句
Inside an old clock or watch, you can also see tiny wheels.
ramp
[ræmp]

中文
斜坡；坡道

例句
A ramp has one high end and one low end.
wheelchair
[ˈwiːltʃeə(r)]

中文
轮椅

例句
People in wheelchairs use ramps to go into and out of buildings.
*hill
[hɪl]

中文
山丘；小山

例句
Hills and mountains are ramps in nature.
nature
[ˈneɪtʃə(r)]

中文
自然界；大自然

例句
Hills and mountains are ramps in nature.
board
[bɔːd]

中文
木板

例句
Dad, these boards are heavy.
push down
[pʊʃ daʊn]

中文
向下按压

例句
We can push down the seesaw.

句子点读

Explore

中文
Simple machines in our daily lives

中文
我们日常生活中的简单机械
What are simple machines?

中文
什么是简单机械？
They are the most basic inventions.

中文
它们是最基础的发明。
They make our lives easier, and we use them every day.

中文
它们让我们的生活更便利，我们每天都在使用它们。
The lever

中文
杠杆
Many everyday inventions are levers.

中文
许多日常的发明都是杠杆。
A bottle opener is a lever.

中文
开瓶器是杠杆。
A seesaw is also a lever.

中文
跷跷板也是杠杆。
When you ride on a seesaw in the playground, you are using a lever.

中文
当你在游乐场玩跷跷板时，你就在使用杠杆。
In the picture, a boy sits down on one side, and his friend on the other side goes up.

中文
图中，一个男孩坐在一端，另一端的朋友就升了起来。
The wheel

中文
轮子
We use wheels every day on cars, trucks and bicycles.

中文
我们每天在汽车、卡车和自行车上使用轮子。
Inside an old clock or watch, you can also see tiny wheels.

中文
在老式钟表里面，你也能看到极小的齿轮。
The ramp

中文
斜坡
A ramp has one high end and one low end.

中文
斜坡有一端高，一端低。
A slide is a ramp.

中文
滑梯是一种斜坡。
On it, you can go from a high place to a low place quickly.

中文
在上面，你可以从高处快速滑到低处。
Things can move up and down more easily on a ramp.

中文
物体在斜坡上更容易上下移动。
People in wheelchairs use ramps to go into and out of buildings.

中文
坐轮椅的人使用斜坡进出建筑物。
Hills and mountains are ramps in nature.

中文
山丘和大山是大自然里的斜坡。
Extend

中文
Lu Ban and the saw

中文
鲁班和锯子
Lu Ban was a famous inventor in ancient China.

中文
鲁班是中国古代一位著名的发明家。
He invented a lot of useful tools.

中文
他发明了许多有用的工具。
One day, when Lu Ban was at work on a mountain, a leaf cut his finger.

中文
有一天，鲁班在山上干活时，一片叶子划破了他的手指。
Lu Ban thought, "How could such a small leaf hurt my finger?"

中文
鲁班想,“这么小的一片叶子，怎么能弄伤我的手指呢？”
He looked at the leaf carefully.

中文
他仔细地看了看这片叶子。
There were many teeth on the leaf, and the teeth were sharp.

中文
叶子上有许多齿，而且这些齿很锋利。
"Could I make a tool with teeth like these?"

中文
"我能不能做出一种带这种齿的工具？"
"It could cut things easily,"

中文
"它可以轻松地切割东西。"
Lu Ban said to himself.

中文
鲁班自言自语道。
Soon Lu Ban made a saw.

中文
不久，鲁班造出了一把锯子。
It was the first saw in the world.

中文
它是世界上第一把锯子。
People are still using it today.

中文
人们至今仍然在使用它。
Lu Ban was not the only ancient Chinese inventor.

中文
鲁班并不是中国古代唯一的发明家。
Other ancient Chinese people invented many great things, such as cuju and paper.

中文
其它中国古人还发明了许多伟大的东西，比如蹴鞠和纸。
Many have a great influence around the world.

中文
许多发明在全世界都有着深远的影响。