1.选择题- (共6题)
3.某课外活动小组的同学查阅资料得知，传统腌制松花蛋的主要配料是氧化钙、纯碱和食盐．该小组的同学将这三种物质混合后加入适量的水搅拌、过滤得滤渣和滤液，并对料浆澄清液（“滤液”）的主要成分进行探究．
【提出问题】滤液的主要成分（H2O除外）是什么？
【关于滤液的猜想】
小东认为：滤液中含有NaCl、Na2CO3、Ca（OH）2
小西认为：滤液中含有NaCl、NaOH、Na2CO3
小南认为：滤液中含有NaCl、NaOH、Ca（OH）2
小北认为：滤液中含有NaCl、NaOH
5.将一定质量的甲、乙、丙、丁四种物质放入一密闭容器中，在一定条件下发生化学反应，一段时间后，测得各物质的质量数据如下：
物质 | 甲 | 乙 | 丙 | 丁 |
反应前各物质的质量/g | 3 | 2 | 9 | 4 |
反应后各物质的质量/g | 5 | 2 | 未知数 | 6 |
下列所述正确的是（ ）
6.某氯化钙中含有碳酸钙杂质，称取研细的该样品12.4g放入锥形瓶中，加入32.6g水，充分振荡形成悬浊液，再向锥形瓶中逐滴滴加盐酸使其充分反应至无气泡产生，测得加入盐酸的质量与锥形瓶中物质的质量关系如表所示．
加入盐酸的质量/g | 0 | 37.5 |
锥形瓶中物质的质量/g | 45 | 80.3 |
（有关反应的化学方程式：CaCO3+2HCl═CaCl2+H2O+CO2↑）
2.单项选择- (共11题)
7.
—What major will you choose when you are at university?
—______ but Physics, which has brought terrible dreams to me for the past 12 years.
—______ but Physics, which has brought terrible dreams to me for the past 12 years.
| A．Nothing | B．Anything | C．Something | D．Everything |
8.
Color shapes our view of __world and it may have ___far more influence on our lives than many of us realize.
| A．a; a | B．the; / | C．the; the | D．the; a |
9.
Try not to cough more than you can_____since it may cause problems to your lungs.
| A．help | B．allow | C．stop | D．check |
10.
It is said that the engines of Flight MH370____while flying over the Indian Ocean,with all on board killed .
| A．broke out | B．ran out | C．gave out | D．wore out |
11.
—Did Ann fail in English?
—She ________. Don't you notice that she looks depressed?
—She ________. Don't you notice that she looks depressed?
| A．might | B．must |
| C．may have | D．could have |
12.
Laura was away in Paris for over a week . When she got home，there was a pile of mail_____for her.
| A．waited | B．waiting | C．to wait | D．was waiting |
13.
The story is about an old Indian farmer and an American tourist in India,__ understanding the other’s language.
| A．none of whom | B．both of them |
| C．neither of them | D．neither of whom |
14.
—People often don't appreciate what they have, do they?
—No, _____ they lose it.
—No, _____ they lose it.
| A．if | B．after | C．when | D．until |
15.
People believe that the China Dream is not very difficult ________ so long as the whole nation works hard for it.
| A．realizing | B．to be realized |
| C．realized | D．to realize |
16.
Under no circumstances in the last three months______ for leave because of personal affairs．
| A．did she ask | B．she asked |
| C．has she asked | D．she has asked |
试卷分析
-
【1】题量占比
选择题:(6道)
单项选择:(11道)
-
【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：11
7星难题：0
8星难题：0
9星难题：0