Sound All Around
美音、自然拼读、分级阅读与词汇复习
Table of Contents What Makes Sound?
目录是什么声音?
4 What Is Sound?
4 什么是声音?
8 Different Sounds.
8 不同的声音。
11 Ears and Sound.
11 耳和声.
13 Conclusion.
13 结论。
15 Glossary.
15 词汇。
16 Index.
16 指数。
16 What Makes Sound?
16是什么声音?
Crash, boom, bam, bang, swoosh, and splash—sounds are all around us.
碰撞、爆炸、砰砰、砰砰和喷出声响,
People, animals, and objects make sounds.
人、动物和物体发出声音。
Even the weather makes sound.
连天气也发出声音
Sounds can be loud or soft.
声音可以是响亮或柔软.
They can be pleasant or unpleasant.
他们可以令人愉快或不愉快。
Animals use sound in many ways.
动物在很多方面使用声音.
Humans use sound to communicate their thoughts and feelings.
人类使用声音来表达自己的思想和感受.
Other animals use sound to communicate, too.
其他动物也使用声音进行交流.
They use sound to defend themselves, attract a mate, or signal a warning.
他们用声音来自卫,吸引伴侣,或者发出警告.
A prairie dog makes a noise to warn that danger is near.
一只草原狗发出噪音来警告危险即将到来.
A girl makes sound with an ukulele.
一个女孩用克来耳来发声
Rain makes sound when it hits the ground.
入地后雨出声.
Humans have invented many things to make sounds.
人类发明了许多东西来制造声音.
Drums, bagpipes, and stringed instruments make music.
鼓,管子,和弦乐器制作出音乐.
Horns, bells, and sirens sound warnings or call people to events.
喇叭、铃声和警笛响起警告或唤起人们注意事件。
Alarm clocks signal with music or loud beeps that it is time to get out of bed.
警钟发出有音乐的信号 或响亮的叫声 现在该起床了
What Is Sound?
什么是声音?
Sound is made when an object vibrates, or moves back and forth very quickly.
声音是在物体震动时发出来,或者在非常快地前后移动.
People make sound to talk when air vibrates vocal cords in their throats.
当空气震动喉咙声带时人们会发出声音来说话.
Different vibrations in the vocal cords make different sounds.
声带上的不同振动发出不同的声音.
Vocal cords in the windpipe vibrate to make sounds similar to the way a bee’s wings vibrate to make sound.
风管中可发出类似蜂翼振动的声音。
A vibrating object makes the air around it move.
震动物体使其周围的空气会移动.
This is how sound travels.
声音就是这样传来
It moves outward in all directions.
它向外移动
For example, when a tree crashes to the ground, the air around it vibrates.
例如一棵树倒地后,周围的空气会震动.
When the vibrating air reaches your ear, you hear the sound of a crashing tree.
当震动的空气到达你的耳朵时,你听到一棵倒塌的树的声音.
The vibrating air is called sound waves.
震动的空气被称为声波.
Sound waves also travel through solids and liquids.
声音波也从固体和液体中穿行.
If there is no one around to hear the tree crash, will it make a sound?
如果周围没有人听到树崩的声音,它会发出声音吗?
Try This!
试一试！
Feel the Vibration • Get two rubber bands, one thick and one thin.
- 感受震动; 得到两个橡胶筋,一个厚而一薄.
• Stretch them over an open shoebox.
• 把它们伸到一个打开的鞋盒上。
• Pluck each rubber band.
• 支助 每一个橡皮筋。
• Listen to the sounds they make.
• 听他们的声音。
• How are the sounds different?
• 支助 听起来怎么样?
Why?
为什么?
Different Sounds Not all sound is alike.
不同的声音 不是所有的声音都一样。
Some sounds are loud.
有些声音很响亮。
Others are quiet.
其他人是安静的。
The loudness of sound is called volume.
声出声出相叫出声.
The more air that vibrates, the louder the volume.
震动的空气越多,音量就越大.
For example, a lion’s roar vibrates more air than a buzzing bee’s wings.
例如,狮子的咆哮比鸣叫蜂的翅膀更能振动空气。
Sound also can be high or low.
声音也可以是高的或低的.
This is called pitch.
这叫做投出.
Pitch depends on how fast something vibrates.
皮奇取决于东西振动的速度有多快.
Sirens vibrate quickly and have a high pitch.
警报器迅速震动,音高
Bass drums vibrate slowly and have a low pitch.
巴斯鼓会缓慢地振动并低音.
Math Minute It takes sound about five seconds to travel one mile.
数学分钟 需要5秒左右的声音才能走一英里
How long would it take for a sound to travel 10 miles?
一个声音要多久才能行走10英里?
Lion Bee Mi Mi Mi Mi 4 Mi Mi Mi Mi Mi Mi Hint: Use the mile markers to count by fives to find the answer.
狮子蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜蜜香: 使用里程标记数取出五分来找到答案.
HONK!
韩克!
HONK!
韩克!
The inner parts of the ear are very sensitive.
耳朵的内部非常敏感.
Very loud sounds can hurt your ears.
非常响的声音会伤害你的耳朵。
Be careful around loud noises.
当心周围的噪音。
Cover your ears with your hands, or wear coverings on your ears such as earphones or earplugs.
用手遮住耳朵,或者用耳机或耳塞等遮住耳朵.
Or simply move away from the loud sounds.
或者只是远离声音
Ears and Sound The outside of your ear is shaped to collect sound waves.
耳朵和声音 耳外为取出声波而成形.
The sound waves move from outside the ear to inside the ear.
相声波从耳外入入耳.
Tiny bones inside vibrate when they are struck by sound waves.
微小的骨头被声波击中后会震动
The vibrating bones send messages through nerves to your brain.
震动的骨头通过神经向大脑传递信息.
Your brain then interprets the messages as noise, music, talking, or other sounds.
然后,你的大脑将信息 解释为噪音,音乐,谈话,或其他声音。
Protecting your ears from loud noises keeps them working well.
保护你的耳朵不受噪音的侵扰 让他们工作顺利
Humans and other animals use their ears to hear.
人类和其他动物用耳朵来听.
Conclusion We are surrounded by sounds.
结论：我们被各种声音包围着。
Vibrations make loud, quiet, high, and low sounds.
振动会发出响亮,安静,高而低的声音.
Our ears pick up these sounds, and our brain tells us what they are.
我们的耳朵听到这些声音,我们的大脑告诉我们它们是什么。
Enjoy the many sounds of the world and be careful with your ears!
享受世界的多声音,小心耳朵!