1.选择题- (共11题)
7.下列实验方法能达到实验目的是（ ）
选项 | 实验目的 | 实验方法 |
A | 除去FeCl2溶液中的CuCl2 | 加入足量铁粉，充分反应后，过滤 |
B | 鉴别固体NH4NO3和NaCl | 加适量水溶解，测液体温度变化 |
C | 除去CO2中的少量CO | 点燃 |
D | 检验集气瓶中是否集满氧气 | 将带火星的木条伸入集气瓶中 |
8.下列实验方法能达到实验目的是（ ）
选项 | 实验目的 | 实验方法 |
A | 除去FeCl2溶液中的CuCl2 | 加入足量铁粉，充分反应后，过滤 |
B | 鉴别固体NH4NO3和NaCl | 加适量水溶解，测液体温度变化 |
C | 除去CO2中的少量CO | 点燃 |
D | 检验集气瓶中是否集满氧气 | 将带火星的木条伸入集气瓶中 |
9.下列实验方法能达到实验目的是（ ）
选项 | 实验目的 | 实验方法 |
A | 除去FeCl2溶液中的CuCl2 | 加入足量铁粉，充分反应后，过滤 |
B | 鉴别固体NH4NO3和NaCl | 加适量水溶解，测液体温度变化 |
C | 除去CO2中的少量CO | 点燃 |
D | 检验集气瓶中是否集满氧气 | 将带火星的木条伸入集气瓶中 |
11.在人们担心化石能源将被耗尽的时候，科学家发现海底蕴藏着大量可燃烧的“冰”﹣﹣“可燃冰”，其中主要含有甲烷水合物，可燃冰将成为未来新能源，但在开采技术上还存在着困难，2017年我国在可燃冰开采技术上有较大突破．
2.单项选择- (共10题)
12.
Recently I was an observer at _____ parent education seminar about the depression, suicide, and anxiety disorders affecting _____ children.
| A．the ; the | B．the ; a | C．a ; \ | D．a ; the |
13.
You type almost anything into the space provided on Baidu and in a second it _____with thousands of references.
| A．catches up | B．comes up | C．ends up | D．turns up |
14.
With more forests _____being destroyed, huge _____ of good earth _____ washed away each year.
| A．are ; number ; is | B．/ ; quantities / are |
| C．be ; number ; are | D．/ ; quantities ;is |
15.
The old couple have three daughters，_____ graduating from the same university.
| A．all of them | B．all of whom |
| C．neither of them | D．neither of whom |
16.
_____ what would happen，none of them could find a way out.
| A．Left wondering | B．Having left wondering |
| C．Leaving to wonder | D．Having left to wonder |
17.
She didn’t mention her troubles to Mr. Li，who might have helped her ______.
| A．instead | B．either | C．otherwise | D．anyhow |
18.
Parents are taught to be aware of _____ important mental health is to their children.
| A．that | B．how | C．what | D．so |
19.
---I don’t think your children could have been used to the quick pace of life while working in Shenzhen, _____they?
---_____. They thought of returning to Changchun.
---_____. They thought of returning to Changchun.
| A．had ; Yes | B．do ; Yes | C．have ; No. | D．were ; No |
20.
After _____ seemed an endless effort, the patient was finally able to carry out _____ seemed a perfectly normal walk.
| A．what ; what | B．that；that |
| C．which；which | D．it；it |
试卷分析
-
【1】题量占比
选择题:(11道)
单项选择:(10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：9
7星难题：0
8星难题：1
9星难题：0