Big Machines
美音、自然拼读、分级阅读与词汇复习
Table of Contents Introduction.
导言表。
4 Building Tall Buildings.
4 建筑高楼.
7 Building Roads.
7号楼道.
9 Taking Resources from the Earth.
9 从地球获取资源。
11 Big Machines on Water.
水上11个大机器.
13 Big Machines in the Air.
空中有13个大机器
15 Introduction Work is done when something is moved from one place to another.
15 导 言. 工作从一个地方转移到另一个地方。
Machines are used to do the work.
机器是用来工作的
They move things from one place to another.
他们把东西从一个地方移到另一个地方.
Some things are easy to move.
有些东西很容易移动。
Other things are not.
其他事则不然。
This is the kind of machine used 100 years ago to move earth.
这是100年前用来移动地球的机器
The machine was driven by steam.
机器由蒸汽驱动.
It had a water tank and a coal tank.
它有一个水箱和一个煤箱。
The coal was used to heat up the water to produce the steam.
煤被用来加热出水来产生蒸汽.
Small machines are used for smaller jobs.
小型机器用于较小的工作.
Things like shovels are simple machines.
像铲子一样的东西是简单的机器.
They do not have many moving parts.
它们的移动部件不多。
Big machines are used to move heavy things.
大机器用来移动重物.
They are used to build tall buildings.
它们用来建造高大的建筑.
They are used to build roads and bridges.
它们被用来建造道路和桥梁。
They are used to take resources from the earth.
它们被用来从地球上取走资源。
Building Tall Buildings It takes many big machines to build a tall building.
建造高楼 建造高楼需要许多大机器.
Large power shovels called excavators dig deep holes in the ground.
大型动力铲称为出土机在地上挖出深洞.
Some power shovels have huge buckets that can scoop a swimming pool-sized pile of dirt in one scoop.
一些电铲有巨大的桶 能够把游泳池大小的泥土挖出来
Others have clamlike buckets that take big bites out of the earth.
其他的有蛤蟆般的桶 从地上取出大口
Bulldozers are machines that move the dirt around.
推土机是移动泥土的机器.
Giant dump trucks carry the dirt away.
巨型倾卸货车将泥土运走.
Concrete trucks carry concrete to the work site.
混凝土卡车将混凝土运入工地。
Flatbed trucks carry steel beams and rods to the work site.
平板卡车将钢梁和棒子运入工地.
Large cranes lift steel beams into place.
大起重机起起钢梁入地.
They also carry buckets of concrete to workers high above ground.
他们还向地上高地的工人运送一桶混凝土.
Do You Know?
你知道吗?
A bulldozer can move more dirt in fifteen minutes than a person can shovel in five days.
推土机在15分钟内能移出更多的泥土,比5天内人能铲出更多的泥土.
Building Roads It takes many kinds of large machines to build a road.
修建道路 修道需要多种大型机器.
Large scrapers are used to get rid of trees and brush.
大型刮刮机用来除去树木和刷子.
They also are used to get rid of small hills.
它们也被用来去除小山地.
Loaders are used to dig up dirt and rocks.
装载器用来挖出泥土和岩石.
They put dirt and rocks into giant dump trucks that carry it away.
他们把泥土和石头放入了巨大的倾卸卡车,运走.
Some dump trucks are so big that they can carry enough dirt to equal the weight of twenty elephants.
一些倒垃圾卡车很大,可以携带足够的泥土来等同20头大象的重量.
Graders smooth out the roadway, and pavers lay the road surface onto the roadway.
梯子滑出道口,人行道者将路面铺入道口.
A roller following behind the paver presses down on the new road surface to make it smooth and flat.
水瓶后面的一具滚筒压倒了新路面,使其平滑平整.
Taking Resources from the Earth There are many resources we need that are buried deep inside the Earth.
利用地球资源 我们需要许多资源 埋藏在地底深处
We need big machines to get resources out.
我们需要大机器来获取资源。
Oil drilling rigs are set up to remove oil.
油井钻井平台设置为去除石油.
Large drills are used to get coal out of mines.
大型钻取出矿用煤.
Very large excavators dig up the earth in search of resources.
非常大型出土机为寻找资源而挖掘出地.
Huge dump trucks then carry the resources to where they can be used to make products.
然后,大型倾卸货车将资源运入可以用来生产产品的地方。
Big Machines on Water There are big machines that move things on the water.
水上大机器 有大相机能动水上事.
Tugboats are machines that move other things over water by pulling and pushing.
拖船是指通过拉和推来移动其他事物的机器.
They pull barges.
他们拉起驳船。
They push and pull large ships.
他们推拉出大型船只
Ocean liners are large ships that move people.
远洋班轮是转移人的大型船只.
Oil tankers are huge ships that carry massive amounts of oil.
油轮是运载大量石油的大型船舶.
And container ships are stacked high with containers that carry things from place to place.
集装箱船堆积得很高 集装箱从地到地载货
Big Machines in the Air Large airplanes carry people and cargo.
大机器在空中大飞机 载人和货物。
A 747 is a giant passenger jet that can carry 400 to 450 people.
747是一款能运载400至450人的巨型客机.
The C-5 is a huge cargo plane.
C-5是一架巨大的货机.
It is almost as long as a football field.
它几乎与足球场一样长。
Helicopters are flying machines too.
直升机也是飞行机
The skycrane is a helicopter that is used to lift heavy objects.
摩天大楼是用于起重物体的直升机.
It can lift 15,000 pounds.
能起一万五千斤.
It is used to carry things like bulldozers and power line towers into hard-to-reach places.
它被用来将推土机和电线塔等东西运入难以到达的地方.
You can see that many large machines are at work moving things from place to place.
你可以看到很多大型机器正在工作 将东西从一个地方移动到另一个地方。
But probably the most common is the big rig.
但最常见的可能是大钻机
The big rig is made of two parts—the tractor and the trailer.
大型钻机由两部分组成:拖拉机和拖车。
Big rigs carry goods over roads that wind around the world.
大型钻机载货过道 风起云涌出世界
Do You Know?
你知道吗?
Most big rigs have eighteen wheels or more.
大多数大型钻机有18个轮子或更多.
Can you imagine running over a bed of nails?
你能想象在钉子上跑吗?
That’s a lot of tires to change!
有很多轮胎要换!