Ours is a big world,and full of many different people.People

Ours is a big world,and full of many different people.People with many varying (不同的) points of view are often running up against others who have different opinions.Those of us who smoke are just one group of many.Recently,the activism (采取行动) of non-smokers has reminded us of the need to be considerate (体谅的) of others when we smoke in public.
But,please!Enough is enough!We should like to remind non-smokers that being polite is a two-way street.If you politely request that someone not smoke you are more likely to receive an agreeable response than if you give an ugly look and say something unkind.If you speak directly to someone,you are more likely to get what you want than if you complain to the management.
Many of us have been smoking for so long that we sometimes forget that others are not used to the smell of burning tobacco.We' re human,and like everyone else,we occasionally offend unknowingly.But most of us are open to friendly suggestions and comments,and quite willing to change our behavior to accommodate others.
Smokers are people,too.We laugh and cry.We have hopes,dreams,and aspirations.We have children,mothers,and pets.We eat our hamburgers (汉堡包) with everything on them and give respect to the flag at Fourth of July picnics.We hope you'll remember that the next time a smoker light up in public.
The purpose of the first paragraph is ______.
A.to inform the reader of the bigness of the world
B.to declare that the author belongs to the group of smokers
C.to tell non-smokers that smokers will be considerate
D.to reveal the author's reason for writing this essay
7.What does the second sentence in the second paragraph imply?
A.We should go on two different roads.
B.We have different ways of doing things.
C.Being polite to each other is a mutual thing.
D.We can smoke and sometimes we will not smoke.
8.According to the author,how can you get an agreeable response from smokers if you don't feel like someone smoking beside you?
A.Complain to his boss.
B.Tell him directly that you hate smokers.
C.Keep from complaining but do something to suggest your feelings.
D.Tell him politely that you are not used to smoke.
9.According to the author,why do some smokers smoke in public?
A.Because they cannot stop from smoking.
B.Because they forget that others do not like the smell cigarettes.
C.Because they are humans and they cannot avoid offending people.
D.Because there is no law against it.
10.How does the author try to persuade the reader?
A.He uses reasons.
B.He appeals to people's feelings.
C.He gives examples in his argument.
D.He simply states his opinion.