1.选择题- (共8题)
2.老师在课堂上演示了一个有趣的实验：在一只洁净的小烧杯A中装入30ml蒸馏水，再滴入2—3滴石蕊试液（甲溶液）；在小烧杯B中装入30mL浓盐酸（乙溶液）；用一个玻璃水槽把A、B两个烧杯罩在一起，一会儿就看到A烧杯中的溶液变成了红色。
同学们对上述现象看法不一，有以下两种猜测：
第一种：A烧杯中的蒸馏水使石蕊试液变成了红色。
第二种：B烧杯中的浓盐酸挥发出一种气体，溶解到A烧杯的溶液中，使溶液变成红色。
5.甲、乙、丙、丁均为初中化学常见的物质，它们之间的部分转化关系如图所示（部分反应物、生成物和反应条件已略去．“﹣”表示物质之间能发生化学反应，“→”表示物质之间的转化关系）．下列推论不正确的是（ ）
6.甲、乙、丙、丁均为初中化学常见的物质，它们之间的部分转化关系如图所示（部分反应物、生成物和反应条件已略去．“﹣”表示物质之间能发生化学反应，“→”表示物质之间的转化关系）．下列推论不正确的是（ ）
2.单项选择- (共12题)
9.
-----What about today’s temperature?
------It’s the same as, if the weather report is exact as usual, _____ of yesterday.
------It’s the same as, if the weather report is exact as usual, _____ of yesterday.
| A．one | B．that | C．ones | D．those |
10.
Living in ever increasingly fast-paced world, we must take____ advantage of every opportunity to develop．
| A．an; the | B．an; an | C．the; an | D．the;／ |
11.
Looking back on the three-year life in the mountain village, Thomas _______ it as a milestone in his personal development.
| A．values | B．confirms |
| C．declares | D．assumes |
12.
Agriculture _____ about 14 percent of global greenhouse gas emissions, and transporting the food around adds to the environmental cost.
| A．cares for | B．applies for |
| C．accounts for | D．answers for |
13.
—How dangerous it was!
—Yes, but for the passerby's quick action, the girl ________.
—Yes, but for the passerby's quick action, the girl ________.
| A．was drowned | B．could have been drowned |
| C．had drowned | D．should be drowned |
14.
Some very common things such as to the sun for a long time will do harm to people's skin and even cause skin cancer
| A．exposing | B．being exposed | C．having exposed | D．exposed |
15.
We don’t care if a hunting dog smells _____, but we really don’t want him to smell ____.
| A．well, well | B．bad, bad | C．well, badly | D．badly, bad |
16.
－When will the expert come and give the lecture on economic development
－Not until our program ____by the government
－Not until our program ____by the government
| A．approves | B．is to approve |
| C．will be approved | D．has been approved |
17.
The question that puzzled them is ____ they can get rid of the air pollution in the area.
| A．how is it that | B．that is how | C．what is that | D．how it is that |
18.
The present question is ____ many students consider it impossible ____ is really possible if effort is made.
| A．what; that | B．that ; that | C．that; what | D．what; what |
19.
As is known to us all, under no circumstances______ temporary economic development at the expense of the environment and resources.
| A．should we seek | B．we should seek |
| C．we had sought | D．had we sought |
试卷分析
-
【1】题量占比
选择题:(8道)
单项选择:(12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：1
5星难题：0
6星难题：6
7星难题：0
8星难题：5
9星难题：0