摘要： A 10. B 填空题
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二、填空题（本大题包括4小题，共16分）
9、如图所示是“研究凸透镜成像”的实验图，若在凸透镜右边的光屏上（光屏未画）得到清晰放大的实像，则蜡烛应置于透境左边四点a、b、c、d中的 点处， 机就是利用此成像特点制成的。
10、某同学从一均匀大岩石上砸下一小块岩石，用天平称得质量是27g。放入装有80ml水的量筒中，水面升到90ml，这块岩石的密度是 kg/m3，这一小块岩石的密度与那一大块岩石的密度 （选填“相等”或“不相等”）
11、质量为2kg的水在太阳的照射下，温度升高5℃，水吸收的热量为 J。这是通过 的方法改变了水的内能。（C水＝4.2×103J/kg
查看习题详情和答案>>专题一：密度
回顾实验与探究：（将下列实验报告中的空缺部分填写完整）
（1）测盐水密度
（2）探究物质某种特性
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回顾实验与探究：（将下列实验报告中的空缺部分填写完整）
（1）测盐水密度
| 器材 | 天平 天平 、量筒 量筒 、被测液体、烧杯 | ||||||||||
| 原理 | ρ=
ρ=
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| 过程 | A、称出烧杯和剩余盐水总质量m1，如图甲； B、在烧杯中盛盐水，称出杯和盐水的总质量m2，如图丙； C、将m、V值代入公式ρ=m/V中算出ρ； D、将杯中盐水倒入量筒中一部分，测出这些盐水体积V，如图乙； E、算出量筒中盐水的质量m 正确的顺序是 BDAEC BDAEC | ||||||||||
测量情况 |
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数据表格 |
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表格图象 |
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结论 |
A、分析表中的实验次数1与2（2与3，1与3）或4与5（5与6，4与6）的体积及质量的倍数关系，可以归纳得出结论 同种液体，质量与体积成正比 同种液体，质量与体积成正比 ．B、分析表中实验次数 1与4、2与5、3与6 1与4、2与5、3与6 可归纳得出结论是：相同体积的甲、乙两种液体，他们的质量是不相同的．C、分析表中甲、乙两种液体的质量与体积的比值关系，可归纳得出结论： 同种液体，质量和体积的比值是一个定值；不同液体，质量和体积的比值一般不相同 同种液体，质量和体积的比值是一个定值；不同液体，质量和体积的比值一般不相同 |
完形填空 (共20小题；每小题1分，满分20分)
请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Certainly dustmen prefer to be known as "Reuse Collection and Disposal Officers". You may think that this is rather 36 , and it is better to call a spade a spade. But dustmen can be as 37 as people of any other occupation, though we must 38 that their job is not a 39 one in the world. We often take dustmen for granted. Perhaps because they usually come very early in the morning, before most people are 40 .We are likely to forget their 41 .Our dustbins are 42 regularly, but we 43 stop to think about the men who do this. However, it is one of the most important jobs in the world, and when there are no dustmen to 44 the rubbish, the general 45 soon becomes aware that something is wrong. Recently, the dustmen of England went on strike for higher wages.
During the first few days it was regarded as a 46 .But when the first two weeks had passed, and the dustbins were overflowing in nearly every backyard in the country, the joke did not seem so 47 any more. 48 the strike continued, people could not 49 the hills of rubbish around their dustbins, and they looked for other places in which to 50 it. Even Leicester Square, in the heart of West End of London, was 51 high with plastic bags full of smelly rubbish. This was a（n） 52 attraction that the people of London were not at all 53 to see. Even when the strike was over, it took several weeks for the country to get cleaned up completely. Perhaps now the English people appreciate the work of 54 dustmen rather more 55 and won't take them for granted any more.
【小题6】.
【小题18】.
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请认真阅读下面短文，从短文后各题所给的A、B、C、D四个选项中，选出最佳选项，并在答题卡上将该项涂黑。
Certainly dustmen prefer to be known as "Reuse Collection and Disposal Officers". You may think that this is rather 36 , and it is better to call a spade a spade. But dustmen can be as 37 as people of any other occupation, though we must 38 that their job is not a 39 one in the world. We often take dustmen for granted. Perhaps because they usually come very early in the morning, before most people are 40 .We are likely to forget their 41 .Our dustbins are 42 regularly, but we 43 stop to think about the men who do this. However, it is one of the most important jobs in the world, and when there are no dustmen to 44 the rubbish, the general 45 soon becomes aware that something is wrong. Recently, the dustmen of England went on strike for higher wages.
During the first few days it was regarded as a 46 .But when the first two weeks had passed, and the dustbins were overflowing in nearly every backyard in the country, the joke did not seem so 47 any more. 48 the strike continued, people could not 49 the hills of rubbish around their dustbins, and they looked for other places in which to 50 it. Even Leicester Square, in the heart of West End of London, was 51 high with plastic bags full of smelly rubbish. This was a（n） 52 attraction that the people of London were not at all 53 to see. Even when the strike was over, it took several weeks for the country to get cleaned up completely. Perhaps now the English people appreciate the work of 54 dustmen rather more 55 and won't take them for granted any more.
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（10昭通）学习了机械效率知识后，某物理兴趣小组的同学对“斜面的机城效率跟什么因素有关”这一课题提出了一些猜想：A．跟斜面的粗糙程度有关； B．跟斜面的倾斜程度有关；C．跟物体的重力有关；D．跟斜面的长度有关．
为了证实其中的部分猜想是否正确，小明同学设计方案并用相同材料的斜面和物块进行探究．下表反映了他的探究过程．
(I)请你替小明在表中两个空格处填上适当的数据．
(2)通过对比 两次(填实验次数的序号)实验数据，可验证猜想A．
(3)通过对比实验①③据，可以得出的探究结论是：当其它条件一定时，斜面倾斜程度越大，斜面的机械效越 ．
(4)若要验证猜想C，应控制不变的量是：斜面长、斜面的倾斜程度和 ，需要改变的量是 ．
专题一：密度
回顾实验与探究：（将下列实验报告中的空缺部分填写完整）
（1）测盐水密度
（2）探究物质某种特性
查看习题详情和答案>>
回顾实验与探究：（将下列实验报告中的空缺部分填写完整）
（1）测盐水密度
| 器材 | ______、______、被测液体、烧杯 | ||||||||||
| 原理 | ______ | ||||||||||
| 过程 | A、称出烧杯和剩余盐水总质量m1，如图甲； B、在烧杯中盛盐水，称出杯和盐水的总质量m2，如图丙； C、将m、V值代入公式ρ=m/V中算出ρ； D、将杯中盐水倒入量筒中一部分，测出这些盐水体积V，如图乙； E、算出量筒中盐水的质量m 正确的顺序是______ | ||||||||||
测量情况 |  | ||||||||||
数据表格 |
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表格图象 |
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结论 | A、分析表中的实验次数1与2（2与3，1与3）或4与5（5与6，4与6）的体积及质量的倍数关系，可以归纳得出结论______． B、分析表中实验次数______可归纳得出结论是：相同体积的甲、乙两种液体，他们的质量是不相同的． C、分析表中甲、乙两种液体的质量与体积的比值关系，可归纳得出结论：______ |
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