阅读理解。
I've written 14 movies. My characters smoke in many of them, and they look cool and glamorous
(有魅力的) doing it. Smoking was an integral (必需的) part of many of my screenplays because I
was a heavy smoker. It was part of a bad-boy image I'd cultivated for a long time— smoking, drinking,
partying, rock 'n' roll.
Smoking, I once believed, was every person's right. The second-hand smoke was non-existent
problem invented by professional do-gooders. I put all these views into my plays.
Remembering all this, I find it hard to forgive myself. I have been an accomplice (帮凶) to the
murders of untold numbers of human beings. I am admitting this only because I have made a deal with
God. Spare me, I said, and I will try to stop others from committing the same crimes I did.
Eighteen months ago I was diagnosed with throat cancer, the result of a lifetime of smoking. I am alive
but disabled. Much of my larynx (喉) is gone. I have some difficulty speaking; others have some
difficulty understanding me.
I haven't smoked or drunk for 18 months now, though I still take it day by day and pray for help. I
believe in prayer and exercise. I have walked five miles a day for a year, without missing even one day.
Quitting smoking and drinking has taught me the hardest lesson I've ever learned about my own
eakness; it has also given me the greatest affection and empathy (同感) for those still addicted.
I don't think smoking is every person's right anymore. I think smoking should be as illegal as heroin
(海洛因). I'm no longer such a bad boy. I go to church on Sunday. I'm desperate to see my four boys
grow up. I want to do everything I can to undo the damage I have done with my own big-screen words
and images.
Screen writers know, too, that some movie stars are more likely to play a part if they can
smoke —because they are so addicted to smoking that they have difficulty stopping even during the
shooting of a scene.
My hands are bloody; so are Hollywood's. My cancer has caused me to attempt to cleanse (彻底
清洁) me. I don't wish my fate upon anyone in Hollywood, but I beg that Hollywood should stop putting
it upon millions of others.
1. The main idea of this passage probably is _________.
A. the writer is ashamed of the bad effects his screenplays have had on human beings
B. the writer's smoking experience nearly killed himself
C. the bad effects that Hollywood screenplay have brought to children
D. the determination of the writer to overcome his illness
2. How do you think the writer has realized his mistake?
A. So many people have found the habit of smoking due to his plays.
B. His plays have brought great harm to teenagers.
C. He himself suffered greatly from smoking.
D. His screenplays have been doing more and more harm to human beings.
3. What is the writer determined to do in future?
A. He has made up his mind to give up smoking forever.
B. He will try his best to prevent others from writing screen plays encouraging smoking.
C. He will try his best to bring up his four children.
D. He has decided to write his screenplays without smoking scenes.
4. It can be inferred from the passage that _______.
A. the writer will soon be recovered from his illness thanks to his exercise
B. the writer will soon die because of his deadly disease
C. smoking will be got rid of in all Hollywood films
D. smoking in Hollywood films is still doing great harm to human beings
等]。某化工厂主要生产
，现利用钡泥制取
，其部分工艺流程如下
，
的反应化学方程式为_________________。