1.选择题- (共2题)
1.能促进水的电离，并使溶液中c(H+)>c(OH－)的操作是（ ）
①将水加热煮沸 ②向水中投入一小块金属钠 ③向水中通CO2
④向水中通NH3 ⑤向水中加入明矾晶体 ⑥向水中加入NaHCO3固体
⑦向水中加NaHSO4固体
①将水加热煮沸 ②向水中投入一小块金属钠 ③向水中通CO2
④向水中通NH3 ⑤向水中加入明矾晶体 ⑥向水中加入NaHCO3固体
⑦向水中加NaHSO4固体
2.将1molSO2和1molO2通入容积固定的密闭容器中，在一定条件下反应达到平衡，平衡时SO3物质的量为0.3mol。此时若移走0.5molSO2和0.5molO2，则反应达到新平衡时SO3的物质的量是 （ ）
2.单项选择- (共7题)
3.
When _______________ comes to saving energy, big changes start with small steps, like turning off the lights.
| A．that | B．this | C．it | D．one |
4.
Having _____ no-meat day would be a good way of encouraging _____ low carbon life-style.
Having _____ no-meat day would be a good way of encouraging _____ low carbon life-style.
| A．a; a | B．a; the | C．the; the | D．the; a |
5.
. --- What’s the matter with Jason? He looks a bit upset.
--- Didn’t you know? When returning from his holiday last night, he found his house _____.
. --- What’s the matter with Jason? He looks a bit upset.
--- Didn’t you know? When returning from his holiday last night, he found his house _____.
| A．broken in | B．broken into |
| C．broken out | D．broken down |
6.
He hurried to the booking office only ______ that all the tickets had been sold out.
He hurried to the booking office only ______ that all the tickets had been sold out.
| A．told | B．to tell | C．to be told | D．telling |
7.
Mr Jones, a new teacher, stood in front of the students, his body ________ with fear.
Mr Jones, a new teacher, stood in front of the students, his body ________ with fear.
| A．trembling | B．trembled | C．was trembling | D．was trembled |
8.
Of the two cameras, I would prefer ________ one, which is very easy for me to carry.
Of the two cameras, I would prefer ________ one, which is very easy for me to carry.
| A．a smaller | B．the smallest | C．a small | D．the smaller |
试卷分析
-
【1】题量占比
选择题:(2道)
单项选择:(7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：0
7星难题：0
8星难题：7
9星难题：0