1.选择题- (共10题)
1.已知1g氢气完全燃烧生成水蒸气时放出热量121kJ，且氧气中1mol O=O键完全断裂时吸收热量496kJ，水蒸气中1mol H﹣O键形成时放出热量463kJ，则氢气中1mol H﹣H键断裂时吸收热量为（ ）
2.在“绿色化学工艺”中，理想状态是反应物中的原子全部转化为欲制得的产物，即原子利用率为100%﹣﹣即“原子经济性”．①置换反应 ②化合反应 ③分解反应 ④取代反应 ⑤加成反应 ⑥消去反应 ⑦加聚反应 ⑧缩聚反应，以上反应类型一定能体现原子经济性的是（ ）
3.在“绿色化学工艺”中，理想状态是反应物中的原子全部转化为欲制得的产物，即原子利用率为100%﹣﹣即“原子经济性”．①置换反应 ②化合反应 ③分解反应 ④取代反应 ⑤加成反应 ⑥消去反应 ⑦加聚反应 ⑧缩聚反应，以上反应类型一定能体现原子经济性的是（ ）
4.在“绿色化学工艺”中，理想状态是反应物中的原子全部转化为欲制得的产物，即原子利用率为100%﹣﹣即“原子经济性”．①置换反应 ②化合反应 ③分解反应 ④取代反应 ⑤加成反应 ⑥消去反应 ⑦加聚反应 ⑧缩聚反应，以上反应类型一定能体现原子经济性的是（ ）
5.下列实验操作能达到实验目的是（ ）
实验目的 | 实验操作 | |
A． | 制备Fe（OH）3胶体 | 将NaOH浓溶液滴加到饱和FeCl3溶液中 |
B． | 由MgCl2溶液制备无水MgCl2 | 将MgCl2溶液加热蒸干 |
C． | 除去Cu粉中混有的CuO | 加入稀硝酸溶液，过滤、洗涤、干燥 |
D． | 比较水与乙醇中氢的活泼性 | 分别将少量钠投入到盛有水和乙醇的烧杯中 |
2.单项选择- (共14题)
11.
I need some carbon paper badly, but there is _____ at hand.
| A．none | B．no one | C．nothing | D．not anything |
12.
__________ her way through the excited crowd in the bookstore, the woman writer is surrounded by a group of admirers.
| A．To make | B．Having made | C．To be made | D．Making |
13.
A total of 264,302 people in the country were reported __________ with HIV by the end of last September.
| A．to have been infected | B．to be infected |
| C．to having been infected | D．to have infected |
14.
______ well in an interview made him lose the position in that company.
| A．Not doing | B．Not to have done |
| C．Having not done | D．Doing not |
15.
My little daughter has walked eight miles today. We never guessed that she could walk ______ far.
| A．that | B．such | C．/ | D．as |
16.
“We Chinese people always put emphasis on the friendly relationships ______ the people of all countries.” said the Ambassador.
| A．with | B．under | C．to | D．between |
17.
The Premier says that bilateral relations will grow smoothly and steadily _____ both countries follow the principle contained in the joint documents.
| A．as far as | B．though | C．unless | D．as long as |
18.
I was trying to pick up my hat that __________ off in the wind, but failed at last.
A. had been blown . is blown C. blown D. it had been blown
A. had been blown . is blown C. blown D. it had been blown
19.
We were aware that, _____, the situation will get worse.
| A．if not dealing with carefully | B．if dealt not carefully with |
| C．if not carefully dealt with | D．if not carefully dealing with |
20.
The news quickly spread ______ China has successfully launched another manned spaceship.
| A．which | B．that | C．when | D．while |
21.
Funny animals is a term used in comics and animated cartoons __________ the animals are given human characteristics.
| A．where | B．that | C．why | D．as |
22.
The government has promised to do ______ lies in its power to relieve the hardships of the victims in the snow-stricken area.
| A．however | B．wherever | C．whatever | D．whichever |
23.
__________ golf was first played in Scotland in the 15thcentury is generally agreed.
A．Whether B. Why C. That D. What
A．Whether B. Why C. That D. What
试卷分析
-
【1】题量占比
选择题:(10道)
单项选择:(14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：9
7星难题：0
8星难题：5
9星难题：0