1.选择题- (共13题)
10.钢铁工业是国家工业的支柱，每年钢铁生锈让国家损失大量资金，请回答钢铁腐蚀与防护过程中的有关问题．
在实际生产中，可在铁件的表面镀铜防止铁被腐蚀．装置示意图如下：
①A电极对应的金属是{#blank#}1{#/blank#}（写元素名称），B电极的电极反应式是{#blank#}2{#/blank#}；
②若电镀前铁、铜两片金属质量相同，电镀完成后将它们取出洗净、烘干、称量，二者质量差为5.12g，则电镀时电路中通过的电子为{#blank#}3{#/blank#}；
③镀层破损后，镀铜铁比镀锌铁更容易被腐蚀，请简要说明原因{#blank#}4{#/blank#}．
11.阿斯巴甜作为强烈甜味剂被广泛应用于食品、饮料、糖果等，工业上可以用苯丙氨酸甲酯和α﹣氨基丁二酸为原料合成：
已知：RCN {#mathml#}{#/mathml#} RCOOH； 
{#mathml#}{#/mathml#} 
2.单项选择- (共11题)
14.
New technologies have made __________easier to enjoy life than ever before.
| A．that | B．this | C．one | D．it |
15.
I woke up with bad headache, yet by evening the pain had gone.
A. the; the B. the; an C. a; the D. a; an
A. the; the B. the; an C. a; the D. a; an
16.
Paper produced every year is _______________the world`s production of vehicles.
| A．three times the weight | B．the three times weight |
| C．as three times heavy as | D．three times as heavier as |
17.
We must do what we can to ____________the river ______________.
| A．protect; against polluting | B．stop; polluting |
| C．keep; being polluted | D．prevent; from being polluted |
18.
With so much noise of the traffic, I couldn`t __________and do my research work.
| A．put down | B．settle down | C．break down | D．take down |
19.
-___________you sing so loudly so late? Can`t you see it is already midnight?
-Oh,sorry.
-Oh,sorry.
| A．Can | B．Should | C．Must | D．Would |
20.
If you let pressure benefit ___________upset you, much more can be accomplished than you
thought possible.
thought possible.
| A．more than | B．rather than | C．other than | D．less than |
21.
There was a __________look on her face because a________ problem _________the little girl.
| A．puzzled; puzzled; puzzled | B．puzzling; puzzling; puzzled |
| C．puzzled; puzzling; puzzled | D．puzzling; puzzled; puzzling |
22.
._______________ you have finished your work,you might as well relax yourself now.
| A．Now that | B．After | C．Although | D．As soon as |
23.
The newcomer went to the library the other day in search of ____________he could find about
Mark Twin.
Mark Twin.
| A．wherever | B．whatever | C．whoever | D．however |
试卷分析
-
【1】题量占比
选择题:(13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：10
7星难题：0
8星难题：1
9星难题：0