1.选择题- (共14题)
1.酒后驾车危害极大,为此,2011年5月以来,南宁市交通警察重点查处酒后驾车.酒精测试仪是交警用来检测机动车驾驶员是否酒后驾车的仪器,它的原理示意图如图所示.图中酒精气体传感器的电阻随酒精气体浓度的增大而减小,R0为定值电阻.如果测试到的酒精气体浓度越大,则( )
2.酒后驾车危害极大,为此,2011年5月以来,南宁市交通警察重点查处酒后驾车.酒精测试仪是交警用来检测机动车驾驶员是否酒后驾车的仪器,它的原理示意图如图所示.图中酒精气体传感器的电阻随酒精气体浓度的增大而减小,R0为定值电阻.如果测试到的酒精气体浓度越大,则( )
3.使用天平之前,应使游码停留在标尺左端的{#blank#}1{#/blank#}.用调节好的天平测某物体的质量,天平平衡时,右盘砝码的质量、游码在标尺上的位置如图所示,则该物体的质量为{#blank#}2{#/blank#} g.
4.2011年6月4日,中国选手李娜勇夺法网女单冠军.比赛中,李娜用球拍击球,将网球击扁,如图所示.球拍对网球的力改变了网球的形状和{#blank#}1{#/blank#}.网球被击出后能在空中继续向前飞行,是因为网球具有{#blank#}2{#/blank#}.
5.2011年6月4日,中国选手李娜勇夺法网女单冠军.比赛中,李娜用球拍击球,将网球击扁,如图所示.球拍对网球的力改变了网球的形状和{#blank#}1{#/blank#}.网球被击出后能在空中继续向前飞行,是因为网球具有{#blank#}2{#/blank#}.
6.一包白色粉末,其中可能含有NaCl、Ba(NO3)2、CuSO4、Na2CO3,现做以下实验:
①将部分粉末加入水中,振荡,有白色沉淀生成,过滤,滤液呈无色
②向①中的沉淀物中加入足量稀硝酸,固体完全溶解,并有气泡产生
③取少量②的溶液,滴入稀硫酸,有白色沉淀产生
试根据上述实验现象判断,原白色粉末中
一定含有的物质是{#blank#}1{#/blank#},
一定不含的物质是{#blank#}2{#/blank#},
可能含有的物质是{#blank#}3{#/blank#}(以上物质均写化学式),
写出第①步中反应的化学方程式:{#blank#}4{#/blank#},
第②反应步中离子方程式:{#blank#}5{#/blank#}.
7.汽车发动机用水散热,这是因为水的比热容{#blank#}1{#/blank#}(填“大”或“小”).在相同条件下,吸收的热量较多.质量为1kg的水,温度从20℃升高到70℃,吸收的热量是{#blank#}2{#/blank#}J.[水的比热容为4.2×103J/(kg•℃)].
8.汽车发动机用水散热,这是因为水的比热容{#blank#}1{#/blank#}(填“大”或“小”).在相同条件下,吸收的热量较多.质量为1kg的水,温度从20℃升高到70℃,吸收的热量是{#blank#}2{#/blank#}J.[水的比热容为4.2×103J/(kg•℃)].
11.如图所示电路,电源电压保持不变,滑动变阻器的最大阻值为10Ω.闭合开关s,当滑动变阻器的滑片P移到b端时,电流表的示数为O.6A,此时电阻Rx两端的电压为{#blank#}1{#/blank#}V;当滑动变阻器的滑片P移到a端时,电流表的示数为O.9A.则电源电压为{#blank#}2{#/blank#}V,电阻Rx的电阻值为{#blank#}3{#/blank#}Ω.
12.如图所示电路,电源电压保持不变,滑动变阻器的最大阻值为10Ω.闭合开关s,当滑动变阻器的滑片P移到b端时,电流表的示数为O.6A,此时电阻Rx两端的电压为{#blank#}1{#/blank#}V;当滑动变阻器的滑片P移到a端时,电流表的示数为O.9A.则电源电压为{#blank#}2{#/blank#}V,电阻Rx的电阻值为{#blank#}3{#/blank#}Ω.
13.小明从网上了解到,丁电池内部其实是有电阻的,分析电路时,可以把干电池看成是由一个电压为U、电阻为零的理想电源与一个电阻值为r的电阻串联而成,如图甲所示.在老师指导下,小明设计了图乙所示的电路来测量一节干电池内部的电阻.
14.下列有关问题,与盐的水解有关的是 ( )
①NH4Cl与ZnCl2溶液可做焊接金属中的除锈剂
②用NaHCO3与Al2(SO4)3两种溶液可做泡沫灭火剂
③草木灰与铵态氮肥不能混合施用
④实验室盛放碳酸钠溶液的试剂瓶不能用磨口玻璃塞
⑤加热蒸干AlCl3溶液得到Al(OH)3固体
⑥用热的Na2CO3溶液去污
⑦使用明矾净水
⑧贮存FeCl3溶液滴加几滴盐酸
①NH4Cl与ZnCl2溶液可做焊接金属中的除锈剂
②用NaHCO3与Al2(SO4)3两种溶液可做泡沫灭火剂
③草木灰与铵态氮肥不能混合施用
④实验室盛放碳酸钠溶液的试剂瓶不能用磨口玻璃塞
⑤加热蒸干AlCl3溶液得到Al(OH)3固体
⑥用热的Na2CO3溶液去污
⑦使用明矾净水
⑧贮存FeCl3溶液滴加几滴盐酸
2.单项选择- (共18题)
15.
Victor doesn’t have _____ sense of ____ humor. If you joke with him, he may get very angry.
A.the, the | B.a, the | C.a,/ | D./,/ |
16.
Here are five nice pairs of shoes, I think, to __. Which would you like to ___?
A.choose, choose | B.be chosen, choose |
C.choose from, choose | D.choose, choose from |
18.
The boy was late. He tried to enter the classroom without being noticed by the teacher, but luck ______ him.
A.went with | B.went against | C.went along | D.went over |
19.
--- Smoking is bad for your health. ---Yes, I know. But I simply can’t ___.
A.give it up | B.give it in | C.give it out | D.give it away |
20.
The boy insisted ______ in a nearby school.
A.to be taught | B.being taught | C.on being taught | D.on teaching |
21.
He arrived early,____ to have a look at his favourite pop star.
A.hoping | B.to hope | C.having hoped | D.hoped |
22.
–It’s too late to go to the football match now; ______,it’s being to rain.
A.however | B.besides | C.on the contrary | D.because |
24.
------what do you think of the shirt I bought?
------It is not only good __________ but also reasonable in price.
------It is not only good __________ but also reasonable in price.
A.with quality | B.in quality | C.of a quality | D.in a quality. |
25.
She went out with the door unlocked by _ although she knew early that it would result in theft.
A.accident | B.intention | C.chance | D.purpose |
26.
_______ I have to sell my house, I’ll keep my business going.
A.Even | B.As if | C.If | D.Even if |
27.
What do you think ____________ at this time last night?
A.has he done | B.he has done | C.was he doing | D.he was doing |
28.
----What was the party like?
----Wonderful. It’s years _____ I enjoyed myself so much.
----Wonderful. It’s years _____ I enjoyed myself so much.
A.after | B.before | C.when | D.since |
29.
Tom killed the cat. I’ll ask him why _______.
A.he did that | B.did he do that | C.he does that | D.he had done so |
31.
He waited for __________ seemed like an hour before he finally got the ticket.
A.what | B.which | C.that | D.it |
试卷分析
-
【1】题量占比
选择题:(14道)
单项选择:(18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:16
7星难题:0
8星难题:1
9星难题:0