Dragonflies!
美音、自然拼读、分级阅读与词汇复习
Table of Contents Amazing Dragonflies.
内容列表 神奇的"龙".
4 What Are Dragonflies?
4 什么是"萤龙"?
5 Young Dragonflies.
5"青龙".
7 Super Sight.
7"超级视觉".
9 Amazing Flight.
9"惊人的飞行".
10 Amazing Hunters.
10个神奇猎人
12 Dragonflies for Dinner.
12只龙蝇吃晚饭.
13 Swarms.
13个斯沃克
14 Dragonflies Worldwide.
14 《全球龙凤》。
15 Glossary.
15 词汇。
16 Amazing Dragonflies You’re walking past a lake or stream when suddenly— bzzt!
16个神奇的"猛龙" 突然间,
—something big, shiny, and green zooms past your head.
- 东西大,闪亮,绿色 放大你的头。
It’s bigger than a bumblebee.
比起大黄蜂,
It’s faster than a butterfly.
比蝴蝶还快。
It’s an amazing dragonfly!
这是一只令人惊叹的苍蝇!
A dragonfly has a large head; a long, skinny body; and two pairs of wings.
有一只"龙"有一头大;一身长而瘦;两对"翅膀".
What Makes an Insect a Dragonfly?
是什么让一只昆虫成为了一头龙?
What Are Dragonflies?
什么是"苍蝇"?
Dragonflies are flying insects with long bodies and two pairs of wings.
龙蝇是飞行中的昆虫,有长身和两对翅膀.
They come in every color of the rainbow: bright red, sunny orange, even metallic blue, green, and gold.
它们从彩虹的每个颜色中出现: 明亮的红色,阳光的橙色, 甚至有金属的蓝色,绿色和黄金。
Some dragonflies have colorful stripes on their wings or bodies.
一些蜻蜓的翅膀或身体有多彩的条纹.
Some even change color over time.
有些甚至会随着时间的推移而改变颜色.
Dragonflies are often confused with damselflies because the two kinds of insects look like each other.
由于两种昆虫相貌相相似,常被龙蝇与坝自活虫相混淆.
You can tell dragonflies and damselflies apart when they land.
你可以分辨出萤火虫和水蚤在降落时会分开
When a damselfly isn’t flying, it folds its wings together and holds them above its back.
当一个大坝本身不飞时,它会把翅膀叠在一起并放在背上。
Dragonfly wings can’t fold like a damselfly’s.
飞龙翅膀不能像大坝一样折叠。
Dragonflies keep their wings stretched out to either side all the time.
龙凤会一直把翅膀伸到两边
Young Dragonflies Dragonflies need water during every stage of their life cycle.
年轻的萤龙 蜻蜓在生命周期的每一个阶段都需要水.
Adults lay their eggs in water or on plants near water.
成年人在水中或靠近水的植物上下蛋.
The young dragonflies, called nymphs, live in water for one or more years after hatching.
幼生的蜻蜓被叫作"尼",孵出后会活在水中一年或几年.
Some dragonflies lay their eggs in rotting wood under water (main).
有的蜻蜓会把蛋放入腐烂的木材下水(主).
Some dragonflies can lay hundreds of eggs at a time (inset).
有的蜻蜓一次可以产出上百个卵(被套入).
Nymphs look very different from adult dragonflies.
尼姆斯看起来与成年的蜻蜓大相径庭.
They have gills inside their bodies, which allow them to breathe underwater.
它们体内有 gi,可以让它们在水下呼吸.
Dull green or brown coloring helps them hide from predators such as fish and frogs.
杜尔绿色或棕色的取色能帮助他们躲避捕食者如鱼和青蛙.
To escape predators, they squirt a powerful stream of water through their gills.
为了躲避掠食者,它们会通过 gi来喷出一股强大的水流.
It launches the nymphs forward at high speed.
它以高速发射尼姆斯前进.
As nymphs grow, their skin doesn’t grow with them.
当尼姆斯长大后,
Instead, dragonfly nymphs shed their entire outer layer each time they need to grow.
相反地,龙蝇尼姆斯每次需要生长时都会掉出整个外层.
When a nymph is ready to become an adult, it crawls out of the water.
当一个尼姆准备成为成人时会从水中爬出.
The adult dragonfly comes out of the last shed layer.
成年的"飞龙"出自上层棚地层.
Super Sight Dragonflies have amazing eyesight.
超级相机龙有惊人的视力.
Each eye is made up of about thirty thousand tiny sections.
每只眼睛由大约三万个小部分组成.
As adults, dragonflies have the largest eyes of any kind of insect.
作为成年人,蜻蜓拥有任何种类昆虫中最大的眼睛.
They can see in almost all directions at once.
他们可以同时看到几乎所有方向.
Dragonflies’ super eyesight helps them catch prey.
恐龙的超级视力有助于捕捉猎物。
They can find a single target, even in a swarm of thousands.
他们可以找到一个单一的目标,即使是成群的数千人.
Close up, dragonfly eyes look as if they are made of window screens.
收起,"龙飞"的眼睛看起来就像由窗外屏所成.
Tracking Dragonflies How do scientists find out where a dragonfly swarm is headed?
追踪萤龙 科学家们如何发现一头飞龙的去向?
They glue on miniature radio transmitters.
它们粘在微型无线电发射机上
Then scientists use cars and an airplane to track the dragonflies as they move across the country.
然后,科学家们用汽车和飞机 追踪那些穿越全国的蜻蜓
Amazing Flight Adult dragonflies are among the world’s fastest flying insects.
世界上飞行速度最快的昆虫之一,
They reach speeds of one hundred body lengths per second.
它们达到每秒一百个体长的速度.
That’s more than 22 miles (36 km) per hour for a large dragonfly.
一只大苍蝇的时速超过22英里(36公里)。
When a dragonfly zips into high speed, it speeds up faster than the world’s fastest race cars!
当一头被一头被一头龙卷风拉入高速时,速度会快于世界最快的赛车!
Male dragonflies defend their homes against other males.
雄性蜻蜓会保卫自己的家园,对抗其他雄性.
If they spot an intruder, they “fight” by performing high-speed flight displays.
如果他们发现入侵者,他们通过进行高速飞行展示“战斗”。
These contests let dragonflies show off their speed and size without being hurt.
这些比赛让蜻蜓在不受伤害的情况下展现出速度和体型.
Unlike most flying insects, dragonflies control each wing independently.
与大多数飞行昆虫不同,蜻蜓独立地控制了每个翅膀.
They can hover like helicopters or swoop and dive like fighter jets.
它们可以像直升机一样徘徊 也可以像战斗机一样飞来飞去
They can fly forward, backward, and even upside down.
它们可以往前飞,往后飞,甚至颠倒.
Do You Know?
你知道吗?
Scientists study dragonfly flight in order to understand how to make better airplanes and helicopters.
科学家们研究飞龙飞行,以了解如何制造更好的飞机和直升机.
Scientists even hope to create a robotic dragonfly that they can send places too tricky or dangerous for humans to visit.
科学家甚至希望创造出一种机器人飞龙,他们可以把过于棘手或危险的地段送到人类无法去拜访的地方.
Dragonflies are quick, nimble fliers.
龙蝇快活活活活活
Amazing Hunters An adult dragonfly is a high-speed flying predator, one of the most successful hunters in the animal world.
惊人的猎人 成活龙是高速飞行的捕食者,是动物界最成功的猎人之一.
Scientists say that a dragonfly catches its prey more than nine times out of ten.
科学家们说,一只蜻蜓捕到猎物 超过十分之九
Compare that to a lion, which catches its dinner only one out of four tries.
比起一头狮子, 它的晚餐只有四分之一尝试。
Dragonflies can deliver rapid, powerful bites.
猛龙能发出快而强大的咬口.
They surprise mosquitoes and other small insects by attacking from behind and below.
它们通过从后方和下方出击来突袭蚊子和其他小昆虫.
They often eat their catch without bothering to land.
他们经常吃他们的渔获而不打扰地上.
Damselflies make good meals for dragonflies.
贱民为蜻蜓做好饭.
Dragonflies for Dinner Dragonflies’ flying skills help them avoid most predators.
恐龙的飞行技巧有助于避免大多数掠食者。
Many animals like to eat dragonflies—birds, lizards, frogs, spiders, and even other dragonflies.
许多动物喜欢吃蜻蜓-鸟,蜥蜴,青蛙,蜘蛛等,甚至吃其他的蜻蜓.
Not many can catch these speedy insects.
没有很多人能捕到这些快速的昆虫。
Humans eat dragonflies, too.
人类也吃蜻蜓.
In many parts of the world, dragonflies are a special treat.
在世界多地,蜻蜓是一种特殊的取景.
You can buy them threaded onto sticks like skinny corn dogs.
你可以像瘦玉米狗一样买下它们
An adult bee-eater holds a dragonfly in its beak.
成年吃蜜蜂的鸟在它的喙中握住一只龙.
Scientists say that dragonfly swarms are hard to photograph.
科学家称"萤火虫"很难拍照.
Swarms Sometimes dragonflies gather in huge groups, or swarms.
斯沃斯有时会聚集成巨大的群,或者群起.
They may swarm to feed on large numbers of insect prey found in one place.
它们可能聚集在一个地方发现的大量昆虫猎物上觅食.
They also swarm to fly south as the weather cools, the way birds travel south for the winter.
它们也会在天气凉爽时向南飞去,即鸟类为冬季向南行走的方式.
A Safe Place for Dragonflies In 1985, people in Japan created the world’s first dragonfly park.
飞龙的安全地盘 1985年,日本人创建了世界上第一个"苍蝇公园".
Since then, dragonfly parks have sprung up in Europe and the United States as well.
自此,欧洲和美国也纷纷兴起"飞龙"公园.
Dragonflies are amazing creatures— and people all over the world are starting to realize it!
飞龙是惊人的生物——全世界的人都开始意识到了!
Dragonflies Worldwide There are nearly three thousand kinds of dragonflies.
世界龙卷风 有近三千种龙凤.
They are found all around the world, in almost every kind of habitat.
它们遍布世界各地,分布于几乎所有种类的栖息地.
Check out a nearby stream, pond, or lake, and see if you can spot these fancy fliers for yourself!
看看附近的溪流,池塘,或者湖泊, 看看能不能自己发现这些花花公子!
The dragonfly park in Singapore has large statues of dragonflies in the lake.
新加坡的"苍蝇公园"在湖中有大型"苍蝇"雕像.