While it's technically possible to heat something with just sound, in practice it's incredibly difficult.Sound waves carry almost no energy at all. When you hit your hand on a table, the loud smack you hear represents less than 1 percen...
根据“Sounds are very important. Most people and animals use sounds to communicate with each other声音是非常重要的。大多数人和动物用声音互相交流”,可知选C。【小题2】题意:声音是如何传播的?考查细节理解。根据“there is sound when an object vibrates, or moves back and forth very fast. A ...
阅读理解DPeople, animals and other things make sounds. Sounds can be loud or quiet, happy or unhappy. Sounds arevery important. Most people and animals use sounds to communicate with each other. Many things also make usefulsounds. Drums and pianos bring us music. Bells in school tell us to...
【题目】Lots of things are loud and lots of sounds have a high pitch (音调). But there's something about the sound of ahuman scream that makes t more alarming to us than any other sound. Screaming is a sound humans make acros allage ranges and cultures. Whether due to pain, horror ...
【题目】People, animals, and other things make sounds. Sounds can be loud or(1)___,happy or unhappy.Sounds are very important. Most people and animals use sounds to (2)with each other. Many things also make useful sounds. Drums and pianos bring usmusic. Bellsin school tell us to ...
practice:[名词]医生诊所;律师事务所柯林斯英语释义:A doctor's or lawyer's practice is his or her business, often shared with other doctors or lawyers.注:这里是熟词僻义。 15:52 Karl: I know, I know it sounds unbelievable and faintly ridiculous, but bear with me on this...我知道这听起来...
题目People, animals and objects make sounds. Even the weather makes sound. Sounds can be loud or soft. They can be pleasant or unpleasant. Animals use sound in many ways. Humans use sound to communicate their thoughts and feelings. Other animals use sound to communicate, ...
People, animals, and other things make sounds (声音). Sounds can be loud (大声的) or quiet, happy or unhappy. Sounds are very important. Most people and animals use sounds, to communicate (交流) with each other. Many things also make useful sounds. Drums (鼓) and pianos bring us music...
importantthings make sounds(声音).becauseSounds can be loud (大声的)or quiet, happy ormost students have musicAclasses at schoolunhappy.Sounds are very important.most childrenlike playingBMost people and animals usethe piano and drumsounds, to communicate(交流most people and animalswith each other...
M: Sounds like a lot of work. W: It’s a pretty big project, so take someone with you. I think you can finish in a week if the two of you are working on it. M: When should we start off? W: You needn’t hurry so much. I’ll give you two days for preparations and packing...