the teacher said to us.是一般过去时,改为宾语从句said to sb 改为told sb; "光比声音传得快" 是表客观真理,所以从句的动词不受主句谓语动词时态的限制,Why does light travel faster than sound是特殊疑问句,宾语从句要按照陈述句的语序;故答案为told;travels 。
改间接引语 1.“Why does light travel faster than sound?”Tom asked Mike. 怎么改? 老师说travel要加s ,但我不明白为什么不是加ed ? 答案 Tom asked Mike why light travels faster than sond.宾语从句中陈述的是客观事实、真理、名言、警句、谚语等内容时,不管主句是何种时态,从句中都用一般现在时态 ...
1. Why can't we hear the sound of aeroplane in the nights? 2. Why we are able to hear smaller sound? Explain what happends when sound travel from one medium to another medium? How can a rocket change direction when it is far out in space and is essentially in a vacuum? Explain. ...
(travel) faster than sound. 相关知识点: 试题来源: 解析 1.travels 考查动词时态。根据句子结构,该宾语从句是叙述永恒不变的 "真理" ,时态应为一般现在时, "light" 是主语,所以谓语动词应为三单形式 "travels" 。句意:过去的人们不知道为什么光比声音传播得快。故正确答案为:travels。
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To get to the bottom of this question, we need to look at two important factors: How sound travels, and what's actually out there in space. Once we have this information, we should be able to tell if humans can really hear in space. So how does sound travel? Keep reading ...
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百度试题 结果1 题目【题目】动词填空Little Tom always wondered why ight(travel fasterthan sound when he was young. 相关知识点: 试题来源: 解析 【解析】travels 反馈 收藏
Examines why compressional sound waves travel faster along the earth's axis in the inner core. Analysis of the origin of the seismic anisotropy observed in the inner core; Collaboration among several scientists to come up with a method of calculating the elasticity of iron in the inner core; ...
Whether people have had a stronger wish to protect their personal space in recent times is hard to say. Yet studies of airlines show that people have a strong desire(渴望) to have space to themselves. In a survey by TripAdvisor a travel website people said that if they had to pay more...