The speed of light is faster than the speed of sound by a significant margin, since sound travels at about 343 meters per second while light travels a...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...
解析 【解析】【答案】把What改为That 【解析】此句的句意是“光的传播速度比声音快是 常识”;分析句子成分和结构可知,主语从句light travels faster than sound不缺句子成分且意思完 整,所以直接用That来引导主语从句。故此处答 案是把What改为That.
"The teacher told the students"后接的从句 "light travels much faster than sound" 是完整的陈述句,不需要充当主语或宾语的成分,也没有疑问、条件或时间的含义,因此需要用纯连接词 "that" 引导宾语从句。**逐项分析:**- **A. what**:引导名词性从句时用于缺少主语/宾语的情况,但从句结构完整,排除;- *...
7、—Do you know sound travels very fast?—Yes. But light travels ___ sound. A、as fast as B、a little faster than C、much faster than D、slower than 8、—Could you help me put up the maps on the wall?— A...
31 The professor said that light___ faster than sound.悬赏10,速答A:travels B:traveled C:travel D:traveled32 He asked___ for the computer. A:did I pay how much B:I paid how much C:how much did I pay D:how much I paid33 He asked, “How are you getting along?”He asked...
Directions: For this part, you are allowed 30 minutes to write an essay that begins with the sentence“As is known to all, gaining a sound knowledge of the basics is of vital importance for students to master an academic sub...
试题来源: 解析 A。解析:本题考查主语从句的引导词。it 作形式主语,真正的主语是后面的从句,从句中不缺少任何成分,所以用 that 引导。what 在主语从句中充当主语、宾语或表语;which 在主语从句中有选择的意思;when 在主语从句中作时间状语。反馈 收藏
【题目】It is known ___ light travels faster than sound. A. as B. that C. what D. which 相关知识点: 试题来源: 解析 【解析】B 结果一 题目 If you fail to deal with your rubbish in a p way in Chengdu, you may have to pay up to 500 yuan. 答案 proper考查形容词的用法和单词拼写...
Light is electromagnetic radiation that allows us to see, moving at approximately 299,792 km/s in a vacuum. Sound is a mechanical wave that travels through a medium like air or water, typically moving at about 343 m/s in air.
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