1.选择题- (共4题)
2.只用下列鉴别方法不能把待鉴别的物质区分开的是（ ）
待鉴别的物质 | 鉴别方法 | |
A | 澄清石灰水和水 | 闻气味 |
B | 酒精与白醋 | 闻气味 |
C | 过氧化氢溶液和水 | 取样，加二氧化锰，观察有无气泡产生 |
D | 氧气和空气 | 插入带火星的木条，观察是否复燃 |
3.下列物质鉴别或除杂的实验方法错误的是（ ）
物质 | 实验方法 |
A鉴别过氧化氢和蒸馏水 | 分别加入MnO2，看是否有气泡 |
B除去CO2中少量CO | 用点燃的方法除掉一氧化碳 |
C鉴别CO2、氧气和空气 | 将燃着的木条分别伸入瓶中，观察现象 |
D鉴别活性炭和氧化铜 | 分别投入盛有红棕色二氧化氮气体的集气瓶中，观察现象 |
4.下列物质鉴别或除杂的实验方法错误的是（ ）
物质 | 实验方法 |
A鉴别过氧化氢和蒸馏水 | 分别加入MnO2，看是否有气泡 |
B除去CO2中少量CO | 用点燃的方法除掉一氧化碳 |
C鉴别CO2、氧气和空气 | 将燃着的木条分别伸入瓶中，观察现象 |
D鉴别活性炭和氧化铜 | 分别投入盛有红棕色二氧化氮气体的集气瓶中，观察现象 |
2.单项选择- (共11题)
5.
In order to get ________ enough travel experience, they have planned _________ bicycle journey along the longest river of the country.
| A．an; / | B．an; a | C．/; / | D．/; a |
6.
Jack went to college last year, _________ to return home until he achieves his goal.
| A．determining not | B．not determined | C．not determining | D．determined not |
7.
Music _________ by the British musician attracts music lovers all over the world.
| A．to write | B．to be written | C．written | D．writing |
8.
At the sight of the _________ scene, he was almost _________ to death.
| A．frightening；frightened | B．frightened；frightened |
| C．frightening；frightening | D．frightened；frightening |
9.
Adam behaved _________ he had never heard such a thing before.
| A．in case | B．as if | C．while | D．though |
10.
He said he _________ his work, and then we needed to wait for him for a little while.
| A．just finished | B．was just finishing | C．had just finished | D．was just finished |
11.
— What’s that terrible noise?
— The boys _________ for a party.
— The boys _________ for a party.
| A．are preparing | B．have prepared | C．prepare | D．will prepare |
12.
. _________ is known to all, good friends _________ happiness and value to life.
| A．It; add | B．As; add | C．It; add to | D．As; add to |
13.
How pleasant the picture is to _________!
| A．be looked at | B．being looked at | C．looking at | D．look at |
14.
Help is needed for families _________ homes were destroyed during the earthquake.
| A．which | B．when | C．whose | D．where |
试卷分析
-
【1】题量占比
选择题:(4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