完形填空专项训练（1）：
One day my math teacher asked me to help him save back up copies of his work in the computer. I then realized I was able to _1_ the grades for all of his classes. I showed him how to copy files from one disk to another and he _2_ me.
A few days later he asked me to help him again, because he forgot how to do it. When I began to show this to him, some students in my class _3_ and began to talk among themselves quietly. Later that day, at lunch time, I was _4_ by several of them.
“Hey, could you help us change our grades in math? We’ll pay you…”
I could not believe what I was hearing. I could get paid for something very _5_. “All right. I’ll do it.”The next day my math teacher _6_ me to help him out. When he was not paying attention, I began to change their grades from F’s to A’s.
I soon became very popular among my friends. They began to treat me like a god with a magical _7_. I began to change the grades of students. Word _8_ quickly and I became very rich.
Everything was going fine until I was called into the headmaster’s office. When I got there, my teacher was mad, and the headmaster had a angry look in his eyes. “ I have known you for three years. I don’t want to _9_ what your teacher said, but I’m afraid that I must. He has too much _10_,” he said. “Do you have anything to say for yourself?” he asked.
“No.”I said finally. I did not realize how serious my actions had been. I had violated the _11_ of my , and the headmaster. And there was no way back. I was forced to leave my school.
That was a good _12_ for me.
1. A. access B. assess C. change D. mark
2. A. guided B. supported C. thanked D. accepted
3. A. hid B. noticed C. complained D. agreed
4. A. appointed B. approved C. approached D. appreciated
5. A. familiar B. simple C. interesting D. pleasant
6. A. forced B. advised C. encouraged D. got
7. A. energy B. strength C. right D. power
8. A. escaped B. slipped C. spread D. fled
9. A. believe B. ignore C. oppose D. influence
10. A. experience B. pressure C. confidence D. evidence
11. A. intention B. honour C. promise D. trust
12. A. lesson B. skill C. story D. example
完形填空专项训练（2）(A)
With the development of industry, air pollution is getting more and _1_ serious. In Beijing, many people suffer different kinds of illnesses because _2_ air pollution.
Air pollution is caused by the following reasons: about half of the problem is caused by vehicles. There are more and more cars, buses on the roads, and they give _3_ poisonous gases. 25% of air pollution is caused by factories. __4__ factor is the smokers. Smoking not only does harm to their health _5_ to others. _6_ these, about 10% of air pollution is caused by other reasons.
We should take some measures to fight _7_ pollution. New fuel can be used to take _8_ place of gas. We can plant more trees. If everybody realize the importance of environment and does something to stop pollution, the problem will be solved.
