1.选择题- (共8题)
7.某次酸雨的分析数据如下：c （NH4+）=2×10﹣5mol/L、c（Cl﹣）=6×10﹣5mol/L、c （Na+）=1.9×10﹣5mol/L、c （NO3﹣）=2.3×10﹣5mol/L、c （SO42﹣）=2.8×10﹣5mol/L，则此酸雨的pH约为（ ）
2.单项选择- (共14题)
9.
It takes ______ to talk to others on the team when that might expose some of your own weaknesses or ignorance.
| A．energy | B．patience | C．wisdom | D．courage |
10.
— Did you go to the lecture by the visiting professor?
— No. I ______ it, but I've been busy taking care of my grandma in hospital these days.
— No. I ______ it, but I've been busy taking care of my grandma in hospital these days.
| A．would have attended | B．should attend |
| C．must have attended | D．would attend |
11.
According to Darwin's Survival of the Fittest, only those species that were able to ______ the sudden great changes of their living conditions survived.
| A．appeal to | B．relate to | C．adapt to | D．contribute to |
12.
Every morning I get up at 6:00 because I have two dogs ______ at the door for me to take them out for the routine walk.
| A．to wait | B．wait | C．waited | D．waiting |
13.
______her ambition of becoming a professional singer, she has been training very hard since an early age.
| A．Realizing | B．To realize | C．Having realized | D．To have realized |
14.
The poet ______described the peaceful Rocky Mountain and the beautiful Mississippi River in his newly-published poetry.
| A．aggressively | B．vividly | C．desperately | D．controversially |
15.
______the weather, our school sports meet has to be held in the indoor stadium.
| A．In view of | B．In charge of | C．In place of | D．In search of |
16.
How can you expect to get ahead in your life _______you even live to yourself from time to time?
| A．though | B．until | C．before | D．when |
17.
After Tom had finished some paper work, he ______ interviewing the applicants.
| A．starts | B．had started | C．started | D．has started |
18.
— We thought he would have got the job.
— What a pity! He ______too nervous when interviewed.
— What a pity! He ______too nervous when interviewed.
| A．was | B．had been | C．has been | D．would have been |
19.
Guess what! I came across my primary school science teacher this morning, ______ I have lost touch for almost 20 years.
| A．of which | B．when | C．with whom | D．who |
20.
This still leaves the question of ______ local public services should be improved in the next five years.
| A．whose | B．how | C．when | D．where |
21.
The parents didn't tolerate their kids' rudeness at the party, nor ______ themselves to be disobeyed.
| A．they allowed | B．did they allow | C．didn't they allow | D．they didn't allow |
试卷分析
-
【1】题量占比
选择题:(8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：12
7星难题：0
8星难题：2
9星难题：0