问题 听力题

单词拼写(每空1分,共15小题,满分15分;)

(已给出首字母的,注意在答题卡上写出完整单词)

小题1: The old man s__________ from a bad backache after the accident happened.

小题2:He looks dishonest, but ____________(实际上) he is a thief.

小题3: It made her u________ that she didn’t do well in the final exam.

小题4:The child has a very large ____________(词汇量) for his age.

小题5:But for the strong dams that had been newly built, the whole city would have been ______ (破坏) by the flood.

小题6:I come from China, and Chinese is my n____________ language.

小题7:He got a job in a foreign company after _____________(毕业) from university.

小题8:From his ____________ (determine) look, I can see he is sure to succeed.

小题9: He has changed a lot. I could hardly r____________ him.

小题10:Compared with men, women can’t still get the e___________ pay though doing the same work as men.

小题11:Our workmate has been in danger. We’re all ___________ (担心)about his health.

小题12:We all know that he is too ________ (顽固) to apologize.

小题13:People all over the world love to live a p__________ life, they hate wars.

小题14: The novel is ____________ (依据) on a true story .

小题15:Luckily for the people trapped in the fire, many firefighters came to their ______(营救)in time.

答案

小题1:suffered

小题2:actually

小题3:upset

小题4:vocabulary

小题5:destroyed

小题6:native

小题7:graduating

小题8:.determined

小题9: recognize

小题10:equal

小题11:concerned

小题12:.stubborn

小题13:peaceful

小题14:based

小题15:rescue

题目分析:

小题1:句意:事故后,这个老人后背疼的厉害,动词:遭受:suffer,因为的具体的事情,用一般过去式:suffered

小题2:句意:他看上去不诚实,但实际上他是个小偷。副词:实际上:actually

小题3:句意:期末考试没考好让她难过,形容词:难过的:upset

小题4:句意:对于这个孩子的年龄而言,他的词汇量很大。名词:词汇量:vocabulary

小题5:句意:要不是刚建的大坝,这个城市就被洪水摧毁了。动词:破坏,用be destroyed表示被动

小题6:句意:我来自中国,汉语是我的本族语。形容词:当地的,本族的:native

小题7:句意:大学毕业后,他在一家外国公司找到一份工作,after后面接动名词:graduating

小题8:.句意:从他有决心的表情,我可以看出他一定会获胜。形容词:determined 有决心的

小题9: 句意:他改变了很多,我几乎认不出他了。动词:认出:recognize

小题10:句意:和男性相比,女性做同样的工作得不到同等的报酬。形容词:平等的:equal

小题11:句意:我们的同事都有危险,我们都很担心他。Be concerned about对…担心

小题12:.句意:我们知道他很固执不会道歉的。形容词:固执的:stubborn

小题13:句意:全世界的人喜欢过和平的生活,不喜欢战争。形容词:和平的:peaceful

小题14:句意:这个小说是以真实的故事为基础的。Be based on以…为基础

小题15:句意:对大火中的人来说是很幸运的,消防队员及时来救他。Come into rescue sb救某人

问答题

某同学为探究“合力做功与物体动能改变的关系”,设计了如下实验,他的操作步骤是:

①按图摆好实验装置,其中小车质量M=0.20kg,钩码总质量m=0.05kg.

②释放小车,然后接通打点计时器的电源(电源频率为f=50Hz),打出一条纸带.

(1)他在多次重复实验得到的纸带中取出自认为满意的一条,如图所示.

把打下的第一点记作0,然后依次取若干个计数点,相邻计数点间还有4个点未画出,用厘米刻度尺测得各计数点到0点距离分别为d1=0.41m,d2=0.055m,d3=0.167m,d4=0.256m,d5=0.360m,d6=0.480m…,他把钩码重力(当地重力加速度g=9.8m/s2)作为小车所受合力算出打下0点到打下第5点合力做功.W=______J(结果保留三位有效数字),用正确的公式Ek=______(用相关数据前字母列式)把打下第5点时小车动能作为小车动能的改变量,算得Ek=0.125J.

(2)此次实验探究的结果,他没能得到“合力对物体做的功,等于物体动能的增量”,且误差很大.通过反思,他认为产生误差的原因如下,其中正确的是______.

A.钩码质量太大,使得合力对物体做功的测量值比真实值偏大太多

B.没有平衡摩擦力,使得合力对物体做功的测量值比真实值偏大太多

C.释放小车和接通电源的次序有误,使得动能增量的测量值比真实值偏小

D.没有使用最小刻度为毫米的刻度尺测距离也是产生此误差的重要原因.

单项选择题