精英家教网 > 初中英语 > 题目详情
许多科学家在物理学发展过程中作出了重要的贡献,下列叙述中符合物理学史实的是
A.牛顿提出了万有引力定律,并通过实验测出了万有引力常量
B.奥斯特发现了电流的磁效应,总结出了电磁感应定律
C.库仑在前人研究的基础上,通过扭秤实验研究得出了库仑定律
D.哥白尼提出了日心说并发现了行星沿椭圆轨道运行的规律
练习册系列答案
相关习题

科目:初中英语 来源: 题型:

在物理学发展的过程中,许多物理学家的科学发现推动了人类历史的进步。以下叙述中,正确的说法是
A.哥白尼创立地心说
B.相对论的创立表明经典物理学已不再适用
C.卡文迪许建立了行星运动定律
D.牛顿总结出牛顿运动定律和万有引力定律,建立完整的经典力学体系

查看答案和解析>>

科目:初中英语 来源: 题型:阅读理解

“Wanted: Violin. Can’t pay much. Call…”
That advertisement in the newspaper made me remember my childhood. I, too, had wanted a violin, but we didn’t have the money. Even though times were   16 , I couldn’t wait any longer to ask. “Daddy, may I have a violin of   17 ?” Daddy’s face looked   18 . But a few weeks later, Daddy went home, with a case in his hand,   19 ,“Mary, I found this secondhand violin for seven dollars.”
The day when I carried my violin to school for my first lesson , no one could know how   20  I was. I practiced, joined the school orchestra(管弦乐队), gave performances……Several years seemed to run even quickly and I found myself in the first violin chair. More years   21 , and my violin made every move with me, until one day, I carefully   22  it away.
Now here   23  this want advertisement, I discovered the case deep in my closet(储藏室). I put it on the table. Then I picked up the   24 , walked to the telephone and called by the   25 .
Later in the day, a man of about 30 knocked at the door. “I’ve been expecting someone would  26  my advertisement. My daughter wants a violin so  27 ,”he said, examining my violin. “How much are you asking?”
I said, “Seven dollars.” “Are you sure?” he asked,   28  he did not believe his ears. “Seven dollars.” I   29  and then added,” I hope your little girl will enjoy it   30  I did.”
I smiled, but I found my tears(眼泪) rolling down my face.
【小题1】
A.easyB.hardC.lateD.long
【小题2】
A.myB.mineC.myselfD.me
【小题3】
A.angryB.happyC.sadD.funny
【小题4】
A.answeringB.sayingC.askingD.telling
【小题5】
A.surprisedB.excitedC.interestedD.embarrassed
【小题6】
A.pastB.was passedC.passingD.passed
【小题7】
A.carriedB.putC.tookD.threw
【小题8】
A.aboutB.byC.inD.for
【小题9】
A.advertisementB.violinC.caseD.newspaper
【小题10】
A.dateB.nameC.numberD.address
【小题11】
A.offerB.answerC.receiveD.find
【小题12】
A.badlyB.easilyC.quicklyD.luckily
【小题13】
A.thoughB.whenC.as ifD.until
【小题14】
A.repeatedB.continuedC.remindedD.suggested
【小题15】
A.whichB.whenC.whatD.as

查看答案和解析>>

科目:初中英语 来源: 题型:

-- Dad, it's such a long way from our home to the park!
-- You mean it's ______ to take a taxi?
A.popularB.necessaryC.possibleD.important

查看答案和解析>>

科目:初中英语 来源: 题型:

As we know, the Changjiang River is one of _______rivers in the world.
A. long                                  B. longer                              C. the longest

查看答案和解析>>

科目:初中英语 来源: 题型:

I'm wondering _________ Liu Xiang will have time to_________ the meeting.
A.whether;attendB.that;attend
C.whether;appearD.that;appear

查看答案和解析>>

科目:初中英语 来源: 题型:

Jin  Yong is  one of the greatest  and  oldest _________ writers. He is still_________.
A.living; aliveB.living; livingC.alive; livingD.alive; alive

查看答案和解析>>

科目:初中英语 来源: 题型:

As soon as the man walked into the room ~
he ______ his heavy coat and sat down.
A.took awayB.took down
C.took offD.took up

查看答案和解析>>

科目:初中英语 来源: 题型:

There are so many kinds of Mp3 in the shop. We can’t decide ________ .
A.what to buyB.to buy whatC.which to buyD.to buy which

查看答案和解析>>

同步练习册答案