1.单选题- (共7题)
①酒精挥发 ②镁条在空气中燃烧 ③二氧化碳通入澄清石灰水 ④矿石粉碎 ⑤湿衣服晾干 ⑥铁钉生锈 ⑦煤燃烧 ⑧火药爆炸
| A．①④⑤ | B．②③④ | C．⑥⑦⑧ | D．③⑥⑧ |
| A．发光、发热不一定是化学变化 |
| B．化学变化的特征是有其他物质生成 |
| C．我国古代化学工艺在世界上享有盛名，如制火药、烧制瓷器 |
| D．观察物质变化时伴随的现象，就一定能判断有无化学变化发生 |
| A．产生火焰 |
| B．放出大量的热 |
| C．罩在火焰上方的烧杯壁上出现小水滴 |
| D．将罩在火焰上方的烧杯迅速倒过来，倒入澄清石灰水，石灰水变浑浊 |
| A．烧杯中溶液的体积 | B．两个胶头滴管滴出的每滴果汁的体积 |
| C．烧杯中淀粉-碘溶液的浓度 | D．胶头滴管滴出果汁的滴数 |
2.选择题- (共9题)
True or False （判断下列句子是否符合短文内容，符合的用"T"表示，不符合的用"F"表示）
Richard is an exchange student from the USA. He is teaching his friends at Rose Garden School how to play Softball. He is explaining the rules.
Richard: First, we need a bat, a ball and some bases.
Ben: What are bases?
Richard: They are flat squares that show you where to run. After you hit the ball, you have to run around the bases.
If you stand on a base, you are safe. If you are running to a base, and the other team touches the base with the ball, then you are out.
Jennifer: Oh, I see. How would I hit the ball?
Richard: Have you seen baseball on television?
Jennifer: I have.
Richard: Well, Softball is like baseball, only the ball is bigger and softer too.
Jennifer: Do you like volleyball? I love it.
Richard: I like to play beach volleyball. It’s different from volleyball.
Ben: How?
Richard: In beach volleyball, you only have two people on each team and the court is smaller.
Jennifer: Do you play on the beach?
Richard: Yes. It’s good because if you dive for the ball, you don’t hurt yourself.
Ben: Do you play football at your school?
Richard: Which kind of football?
Jennifer: I don’t understand there more than one kind? I thought everyone play the same kind of football.
Richard: No. In the USA, we have football and soccer. Soccer is a game that is played around the world.
In other countries, soccer is called football. In the USA, we also play a different game called football.
In this game, you throw the ball and you have to wear a helmet to play.
Jennifer: Well, I want to play softball.
3.填空题- (共2题)
(2)某同学量取食盐水，读数时量筒放平在桌上且面对刻度线，当视线仰视时读数为38mL，其正确的体积数应______(填“大于”“小于”或“等于”)38mL．
(1)用来吸取和滴加少量液体的仪器是______；
(2)可以直接加热的仪器是______；
(3)实验室常用的加热仪器是________；
(4)排水集气法会用到的仪器是_______；
(5)量取液体时，需要用_______；
(6)少量溶液相互发生反应时，需要用______．
4.实验题- (共1题)
①点燃一支蜡烛，用一只烧杯倒扣在燃着的蜡烛上，蜡烛燃烧片刻后熄灭，如实验一。
②再点燃蜡烛，然后吹灭，看到烛芯产生一缕白烟，用火柴点燃白烟，蜡烛重新被引燃，如实验二。
③将粗细均匀的木条水平放在蜡烛的火焰上，稍加热后观察木条燃烧现象，如实验三。
（1）操作①中，蜡烛能燃烧片刻的原因是_________________________________________。
（2）操作②中，关于白烟的成分，有同学做出了下列猜想：A．白烟是水蒸气；B．白烟是石蜡固体小颗粒；C．白烟是二氧化碳。你认为上述猜想有道理的是（填序号）____________，理由是________________________________________。
（3）该同学在做实验一的过程中，发现罩在火焰上方的烧杯内壁被熏黑，你认为她的以下做法中不合适的是（____）
A 反复实验，并观察是否有相同现象
B 查找资料，了解石蜡的主要成分，探究生成的黑色固体是什么
C 认为与本次实验目的无关，不予理睬
D 询问老师或同学，讨论生成黑色物质的原因
（4）木条处于外焰的部分最先变黑，说明蜡烛的外焰温度最______________。
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【1】题量占比
单选题:(7道)
选择题:(9道)
填空题:(2道)
实验题:(1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：5
7星难题：0
8星难题：2
9星难题：4