28. Like some of my classmates, I cannot
live up to my teachers’ expectations; _______I let them down.![]()
A. in other words B. after all![]()
C. what’s more D.
more or less![]()
27. There was such a long queue for taking
money from the bank that I ______ gave up.![]()
A. unfortunately B. purposefully C.
individually
D. eventually![]()
26. ---Shall we go to the exhibition or to
the concert?![]()
---________.![]()
A. It’s your opinion
B. I don’t mind![]()
C. That’s your decision
D. It’s all up to you![]()
25. When the thief saw the police, he ran
_____, but he was caught in the end.![]()
A. like a crazy B. as crazy C. like crazy D. as a crazy![]()
24. Can you ___ me a job when I get there?
You know, I have to work in order to pay for my schooling.![]()
A. provide B.
guarantee
C arrange
D. apply![]()
23. More attention should be paid
______good habits of reading carefully![]()
A. for forming B.
to form
C. to forming
D. in forming![]()
22. ____ I admit that the problems are
difficult, I don’t agree that they can’t be solved.![]()
A. As B.
When C.
While D.
Despite![]()
第一节:单项填空(共15小题;每小题1分,满分15分)![]()
从A、B、C、D四个选项中,选出可以填入空白处的最佳选项。![]()
21. -How many people are still leading life under poverty
line in the world?![]()
-Perhaps one fourth, according to the
report.![]()
A. the; 不填; B. a; the C. a; a D.
不填: the![]()
8.在500g CuSO4溶液中插入两根电极,一电极为铁,一电极为含杂质锌均匀的粗铜。通电一段时间后,切断电源,立即将电极取出,这时铁电极上析出7.04g铜,电解质溶液增重0.02g。求粗铜中锌的质量分数。
7.在50ml 0.2mol/L 硫酸铜溶液中插入两个电极,通电电解(不考虑水蒸发)。则:
(1)若两极均为铜片,试说明电解过程中浓度将怎样变化 。
(2)若阳极为纯锌,阴极为铜片,阳极反应式是 。
(3)如不考虑氢离子在阴极上放电,当电路中有0.04mol e-通过时,阴极增重 g,阴极上的电极反应式是 。
湖北省互联网违法和不良信息举报平台 | 网上有害信息举报专区 | 电信诈骗举报专区 | 涉历史虚无主义有害信息举报专区 | 涉企侵权举报专区
违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com