1.选择题- (共9题)
1.A，B，C，D的物质类别各不相同，C是胃酸的主要成分，A是一种红棕色固体，D含有四种元素．它们之间的反应或转化关系如图所示（部分物质和反应条件已略去），请写出下列反应的化学反应方程式：
3.下列归纳和总结完全正确的一组是（ ）
A．对现象的认识 | B．化学与安全 |
①打开盛有浓盐酸的瓶盖，瓶口出现白烟 ②铁丝在空气里燃烧，火星四射 ③碳酸钠溶液里滴加酚酞，溶液变成红色 | ①稀酸溅入眼睛﹣﹣用大量水冲洗 ②进入地窖﹣﹣先做灯火实验 ③稀释浓硫酸﹣﹣先放水，再放浓硫酸 |
C．对除杂和鉴别的认识 | D．对概念的理解 |
①用稀盐酸除去氧化钙中含有的少量碳酸钙 ②用熟石灰鉴别硫酸铵和硫酸钾固体 ③用肥皂水鉴别硬水和软水 | ①能改变反应速率的物质，不一定是催化剂 ②生成盐和水的反应一定是中和反应 ③由一种元素组成的物质一定是单质 |
2.单项选择- (共13题)
10.
We were dancing to ____ music when all of ____ sudden the power went out and we were left in the dark.
| A．the; a | B．the; / | C． a; / | D．/; the |
12.
A team, _____ two doctors and three policemen, ____ sent to search for the missing explorers.
| A．consists of; was | B．consisting of; was |
| C．consisted of; was | D．to be consisted of; were |
13.
The living room is clean and tidy, with a dining table already _____ for a meal to be cooked.
| A．laid | B．being laid | C．put | D．being put |
14.
_____ to try his fortune abroad, he left for America.
| A．Having determined | B．Being determined |
| C．Determined | D．To determine |
15.
He’s never lost a day’s work through illness. He’s as _____ as old boots.
| A．strong | B．high | C．rough | D．tough |
16.
There will be a _____ TV report of tonight’s football match and we can enjoy it together.
| A．alive | B．living | C．live | D．lively |
17.
The new machine, as is reported in the local newspaper, will work twice as fast, _____ greatly reducing costs.
| A．thus | B．anyhow | C．yet | D．even |
18.
The moment the 28th Olympic Games _____ open, the whole world cheered.
| A．declared | B．have been declared |
| C．have declared | D．were declared |
19.
I _____ his telephone number. Had I known it, I would have rung him up.
| A．don’t known | B．didn’t know |
| C．hadn’t known | D．haven’t known |
21.
--- Don’t look down upon Bob. He has his own advantages.
--- Oh, yes. ____ others are weak , he is strong.
--- Oh, yes. ____ others are weak , he is strong.
| A．When | B．Where | C．While | D．If |
试卷分析
-
【1】题量占比
选择题:(9道)
单项选择:(13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：13
7星难题：0
8星难题：0
9星难题：0