1.简答题- (共5题)
(1)做铁丝在氧气中燃烧的实验时，集气瓶底部没有放少量水或细纱可能产生的后果:________
(2)实验室加热高锰酸钾，用排水收集氧气。实验结束前先熄灭酒精灯后从水槽中移出导管可能造成的后果：________
(3)向试管中倾倒试剂时，试剂瓶标签背对手心造成的后果：________
(4)实验室制取氢气时，未经过验纯就直接点燃氢气的后果：________
（1）生石灰可用作食品的干燥剂；
_____________________________
（2）燃着的小木棒若将燃烧端朝上，往往木棒没燃尽就熄灭了．
_____________________________
（1）瓦斯属于________ （选填“纯净物”或“混合物”）．瓦斯的主要成分是甲烷，瓦斯爆炸会产生高温、高压和冲击波，并放出有毒气体．甲烷在空气中燃烧的化学方程式是：________ ．
（2）为了防止煤矿爆炸，应采取的措施是：________．
| 物质 | 着火点 | 酒精灯的 火焰温度 |
| 白磷 | | 500℃ |
| 红磷 | |
（1）在铜片上，A和C点为白磷；B点为红磷，用酒精灯对准A加热，最先发生燃烧的是（填字母，下同）________ ；一定不会发生燃烧的是________ ．
（2）将一支充满氧气的试管倒扣在（1）中“一定不会燃烧”的物质上面，现象是________ ；写出该反应的化学方程式 ________ ．
（3）烧杯中热水的作用是________ ．
（1）可燃物燃烧除需氧气外，还需满足什么条件_______？
（2）可燃物燃烧的剧烈程度与延期浓度或接触面积等因素有关，任举一例加以说明_________．
2.单选题- (共10题)
| A．增大可燃物的热值 | B．提高空气中氧气的含量 |
| C．提高可燃物的着火点 | D．增大可燃物与空气的接触面积 |
| A．可以燃烧 | B．隔绝了氧气 | C．改变了楼板的着火点 | D．清除了可燃物 |
| A．物质燃烧必须要与氧气（或空气）接触 |
| B．物质燃烧温度必须要达到着火点 |
| C．烧杯中热水的作用只起提高温度的作用 |
| D．铜片上的白磷与红磷的着火点不同，则现象不同 |
| A．空气不充足，纸不会燃烧 |
| B．纸火锅被加热时使纸的着火点升高了 |
| C．纸火锅里的汤料汽化吸热，使温度达不到纸的着火点 |
| D．酒精燃烧时产生热量少，温度达不到纸的着火点 |
| A．水作为反应物参与了化学反应 | B．手帕的温度没有达到纯棉着火点 |
| C．纯棉的手帕不可燃 | D．坩埚钳有导热作用，手帕的温度较低 |
| A．使温度降到着火点以下 | B．使可燃物与火源隔离 |
| C．使可燃物与空气隔绝 | D．使树木草类变为不可燃物质 |
3.选择题- (共1题)
阅读下列短文内容，回答问题。
How do you spend your spare time? There will be different answers to it. Most people in Poland have their own ways of spending free time. Sometimes they just want to have a rest, but they try to do something more pleasant most of the time. They have many different hobbies, which help them to get away from their everyday problems and spend their free time happily.
Many Polish people like traveling. They look for new places that they have never been to and add new and exciting experiences to their journey. Some of them like to climb mountains, others like to go to the sea or a lake to swim, because these can make them get exercise and are good for their health.
Many Polish people also like to do sports in their free time. They are usually crazy about football, and football is regarded as the Polish national sport. Many football fans may support a certain team, so they go to watch every match of the team they support, and they buy many things that have any relation with the team. Watching sport and doing it are both good ways to relax.
In addition, doctors say that doing sports is very good for the health. Many people in town, especially young men, often go to the gym to attend the exercise classes to keep fit.
Besides these ways, Polish people have many other ways to spend their free time. And they really enjoy their free time.
4.填空题- (共3题)
(1)周瑜的士兵将“火箭”射进曹军的连环木船上，“火箭”能使木船着火的原因是______．
(2)起火后曹军的部分船只逃脱，这些船没有被烧的原因是______．
(3)孔明“借”来的东风不仅使火势吹向曹营，还为燃烧提供了______，使火势更旺．
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【1】题量占比
简答题:(5道)
单选题:(10道)
选择题:(1道)
填空题:(3道)
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【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：9
7星难题：0
8星难题：8
9星难题：1