8. ---Has your former classmate come back from America?
---Yes, he _______ there for eight years.
A. has stayed B. stays C. stayed D. had stayed
7. Luckily, the black box, ______ to record the flight data, was soon found.
A. being designed B. designing C. to design D. designed
6. One of the consequences of our planet’s being warming up is a(n) ______ in the number of natural disasters.
A. account B. reason C. increase D. occurrence
5. I ______ a training course in Hangzhou to study English in the coming summer vacation.
A. will have taken B. have taken C. will be taking D. take
4. ---I can’t imagine that great destruction was made to the city by the snowstorm.
---______.
A. Nor am I B. So do I C. Me, too D. Me, neither
3. We would join them in the dress-up party ______.
A. whether they invite us B. shall they invite us
C. if they invite us D. should they invite us
2. If I can help ______, I don’t like working too late into the night.
A. so B. that C. it D. them
第一节:单项填空(共20小题;每小题0.5分,满分10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,并在答题卡上将该选项标号涂黑。
1. Some researchers point out that ______ daydreaming is ______ means of relaxation.
A. the; a B. 不填; the C. a; the D. 不填; a
8、已知下列反应:①NH3+H+NH4+ ②Ag++2NH3Ag(NH3)2+ ③Ag++Cl-AgCl 前者都比后者更容易发生。下列事实或现象预期正确的是( )
A.氯化银可溶于氨水 B.银氨溶液中加入少量氯化钠有白色沉淀
C.银氨溶液中加入盐酸有白色沉淀 D.银氨溶液可在酸性条件下稳定存在
7、NA表示阿伏加德罗常数,下列各组物质在一定条件下充分反应后,生成气体物质的分子数可能大于或等于NA的是( )
A.400mL10 mol·L-1的浓盐酸与足量的MnO2反应
B.2molCu与200g98%的浓硫酸反应
C.65gZn与足量的硝酸反应
D.H2O(g)和CO2混合气体2mol与足量的Na2O2反应
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