问题 实验题

为了测不沉于水的木块的密度,小明准备先用天平测出木块的质量,再用量筒和水测出木块体积,请你跟随他的测量过程,回答问题:

(1)在调节天平平衡时,小明发现指针偏在分度盘的左侧,此时可以 _________

A.将螺母向左旋  

B.向左盘中加砝码   

C.将螺母向右旋    

D.向右盘中加砝码

(2)在测木块体积时,由于木块不沉于水,小明便用较重的铁块与木块扎在一起,以便测出体积,测量过程如图三个量筒所示.根据图中的测量数据可知,木块的质量为_________g,密度为_________kg/m3

答案

(1)C;

(2)12;0.6×103

阅读理解

Jerry was a manager in a restaurant. He was always in a good mood(脾气)and always had something positive to say. This really made me curious, so one day I asked him, "It's hard to be a positive person all of the time. How do you do it?'' Jerry replied ,"Each morning I wake up and say to myself, "Jerry, you can choose to be in a good mood or a bad mood," and I choose to be in a good mood. Life is all about what you choose. And what you choose leads your life."

Several years later, I heard that Jerry left the back door open one morning and was robbed(抢劫).While trying to stop the thief ,he was shot. I went to see him in the hospital. When I asked him how he was, he replied, "If I were any better, I'd be twins." "Weren't you scared when you were in danger?" I asked. "Yes. The doctors kept telling me that I was going to be fine, but in their eyes, I read. "He's dead." I knew I needed to take action." "What did you do?" "Well. there was a big nurse asking me if I was allergic(过敏的)to anything. "Yes,' I replied ."Bullets(子弹)!Everyone laughed and I told them: I am choosing to live. Operate on me as if I am alive." Jerry lived thanks to the great doctors ,and also because of his amazing attitude(态度).Attitude ,after all ,is everything.

小题1:What kind of person was Jerry?

A.He was serious.

B.He was helpful.

C.He was allergic.

D.He was happy and smart.小题2:When Jerry met difficulties in life, how did he deal with them?

A.He faced them positively.

B.He talked to the writer about them.

C.He asked others to help him.

D.He tried to stop thinking about them.小题3:What does the underlined word "curious" mean in Chinese?

A.敏感的

B.好奇的

C.开心的

D.有趣的小题4:Which of the following is TRUE according to the passage?

A.Jerry was the writer's manager.

B.Jerry was not afraid of dead at all.

C.Jerry was nearly dead after he was shot.

D.Jerry didn't believe doctors.小题5:What is the best title(题目)for this passage?

A.Action Matters

B.Brave Jerry Beat the Thief

C.Attitude Is Everything

D.Jerry ,a Great Man

问答题 简答题