问题 选择题

下图中所示的实验方法、装置或操作正确的是(  )

C.实验室制硝基苯    D.探究硫酸、苯酚、碳酸酸性强弱

答案

答案:D

题目分析:A中温度计的水银球没有插入到溶液中,不正确;B中没有用铁架台固定分液漏斗,错误。C中温度计测量的应该是水浴的温度,不正确,因此答案选D。

点评:化学实验常用仪器的使用方法和化学实验基本操作是进行化学实验的基础,对化学实验的考查离不开化学实验的基本操作,该类试题主要是以常见仪器的选用、实验基本操作为中心,通过是什么、为什么和怎样做重点考查实验基本操作的规范性和准确性及灵活运用知识解决实际问题的能力。

判断题
完形填空
When I came to my new school three years ago, I was surprised at how lonely I felt. Then one of my classmates invited me to her house for a dinner 36 . I was a little anxious, but finally I gladly 37.
Not really knowing how 38  the bus ride should be, I 39  when I saw the landmarks 40 on my friend’s hand-drawn map. But when I got close enough to the 41 , I found none of the streets were shown on the map. I was 42  on a busy road with cars driving past without a person in sight. I had no43  when the next bus would come, 44  when a bus did come by, I 45  got on. I told the bus driver where I wanted to go and he said that I had caught the 46  bus, but he let me stay on. After he had finished his scheduled bus route, he 47 to help me out. I gratefully showed him my little hand-drawn map but 48  did not help much.
He finally 49  me off at a main road to catch a different bus and was 50  that he could not help me more. After a few minutes of walking, I noticed a bus pull up beside me. It was the 51  bus driver. He explained that he didn’t want to leave me there 52 . He sent out a call and someone radioed back, saying that the bus I needed to catch was about ten minutes away. At last I made it to the dinner party 53  I was over an hour late.
I am forever thankful for the 54  that this bus driver had for me. His act of kindness left a 55 on my heart.
小题1:
A.mealB.partyC.meetingD.time
小题2:
A.acceptedB.refusedC.gotD.received
小题3:
A.farB.difficultC.longD.bad
小题4:
A.drove onB.walked away C.hurried byD.got off
小题5:
A.showB.showing C.shownD.to show
小题6:
A.street signsB.tall buildingsC.traffic lightsD.back yards
小题7:
A.queuingB.sittingC.standingD.waiting
小题8:
A.meaningB.ideaC.problemD.way
小题9:
A.soB.yetC.butD.still
小题10:
A.suddenlyB.luckily C.finallyD.quickly
小题11:
A.rightB.wrongC.bestD.fastest
小题12:
A.suppliedB.refused C.offeredD.wanted
小题13:
A.itB.heC.sheD.they
小题14:
A.keptB.droppedC.droveD.turned
小题15:
A.eagerB.worriedC.sorryD.disappointed
小题16:
A.same B.nextC.kindD.silly
小题17:
A.helplessB.lonelyC.unaccompaniedD.alone
小题18:
A.afterB.althoughC.untilD.when
小题19:
A.respectB.concern C.helpD.love
小题20:
A.markB.sign C.symbolD.line