2014黄浦区英语中考二模卷
1. （2014黄浦区二模）牛顿曾研究过这样一个问题：他发现人水平掷出去的石头总会偏离掷出方向落回地面，且
牛顿发现人掷出去的石头总会偏离掷出方向落回地面，我们知道这是重力作用回的效果，是石头答的重力去改变石头运动方向，他从石头落回地面的距离不同，分析预测用相同的力去改变同一物体运动方向时，运动速度越大，物体的运动方向越不易改变，即物体的运动方向改变较小，会落回离掷出点更远的地方．所以牛顿设想：在地球的一座高山上架起一只水平大炮，以不同的速度将炮弹平射出去，射出速度越大，炮弹落地点就离山脚越远．于是牛顿通过科学的推理得出了一个重要的结论：抛出物体的速度足够大时，物体将离开地球，绕地球旋转，做圆周运动；现在随着现代科技的发展，人们应用他的推论，制成了人造地球卫星．
故答案为：
（1）A；（2）当水平速度足够大时，物体就永远不会落到地面上来．
2. （2014黄浦区二模）如图光具座上，从左到右依次放置蜡烛、凸透镜和光屏，调整透镜和光屏的中心大致与烛
（1）根据凸透镜成像规律中实验的要求，首先把凸透镜、蜡烛、光屏放在光具座上，点燃蜡烛并调整蜡烛、凸透镜、光屏的高度，让烛焰、凸透镜、光屏三者中心放在同一高度上，这样才能使像成在光屏的中心；
（2）由“蜡烛放置在20厘米处，保持透镜在40cm刻线处位置不变，移动光屏，可在光屏上得到大小不同的两个像”可知，在光屏上得到的像是实像，那么如果选择透镜的焦距为15cm，蜡烛放置在20厘米处，保持透镜位置不变，由于30cm＞U＞15cm，所以移动光屏，那么能在光屏上得到倒立放大实像，而如果选择透镜的焦距为10cm，蜡烛放置在20厘米处，保持透镜位置不变，由于U=2f=20cm，所以移动光屏，那么能在光屏上得到倒立等大实像；
（3）保持透镜位置不变，若要确保在“50～70厘米”刻度之间移动光屏得到像，也就是像距在大于10cm，小于20cm之间，由于焦距为f=15cm，则若选择C点，物距为U=40cm-15cm=25cm处于一倍焦距和二倍焦距之间，像距应该为大于二倍焦距，必须在v=15cm×2=30cm外，即在70cm刻线之外，同理选择D点也是如此．而选择A、B时，由于物距大于二倍焦距，则像距在一倍焦距和二倍焦距之间，符合题意．
综上所述，保持透镜位置不变，若要确保在“50～70厘米”刻度之间移动光屏得到像，蜡烛应置于光具座上A、B、C、D中的A或B点．
故答案为：（1）同一；（2）15；（3）A或B．
3. 上海市黄浦区中考一二模卷在全市属于什么难度
海市的黄浦区中考一模二模卷在全市属于什么难度？我刚才看了一下你们的一二模卷子。在你们上海市这个难度应该属于中上难度还是比较大的。
4. 上海市闸北区2014届初三英语二模试卷答案
2014年闸北区初三英语教学质量检测试卷
参考答案
Part 1 Listening
I. Listening Comprehension
略（暂无）
Part 2 Phonetics, Vocabulary and Grammar
II. Choose the best answer
26-30 BBCAA,31-35 DBADC, 36-40 BDBDC, 41-45 ACADC
III. Complete the following passage withthe words or phrases in the box. Each can only be used once
46-49 DAEC, 50-53BAEC
IV Complete the sentences with the givenwords in their proper forms
54-61 monkeys, ninetieth, themselves, Canadian,personal, choice, enable, politely
V. Complete the following sentences asrequired
62-68 does it, How essential, Why did, why took, oldenough, be used,
We spent much time going over all the subjects before the entranceexam.
Part 3 Reading and Writing
VI. Reading comprehension
69-74 BCDCBD
B. Choose the best words and complete thepassage
75-80 DCABCB
C. Read the passage and fill in the blankswith proper words
81-87 trouble,average, They, carefully, suggest, same, easier
D. Answer the questions
88.Yes, it was.
89. InAnne’ eyes, people usually set down a series of facts in a diary.
90.Since July 1942.
91.She wanted to have a good look at the moon by herself.
92.Yes, they were.
93.言之有理即可，如可回答I would like to walk into the nature and feel the beauty of it.
VII. Writing
范文：
A White Lie
There’s no doubt that we should be honestto others in modern society. However, as we all know, everyone tells a lie inour daily life from time to time. But should we tell a lie or not whilecommunicating with others? From my point of view, it’s quite necessary for usto lie to others if we want to get on well with others.
But when, why and where? It’s really a meaningful question. Forexample, when some of relatives get a cancer, he or she is sure to pass awaysoon. At this moment, should we be the so-called ‘honest’, and tell him thetruth that he is going to die. I do believe most of us would choose to hide thefact.
Therefore, sometimes we have no choice but to tell a white lie,which can make the situation more positive. As a result, I’m for the point oftelling a white lie when it is helpful or necessary.
5. 2014杨浦区初三英语二模答案
