Hi Ladypiggy
Thanks for posting and sorry for the delay in replying.
Just quickly, I must say your paragraph structure concerning - topic/support/conclusion - are excellent.
I've simply made RED some words that should be changed and I've added a few articles and prepositions for you

Presently, smoking is one of the
largest cause of death. It's currently
killed more than 30,000 humans from lung cancer and 1,000 from other cancers. Thus,just one or two cigarattes a day are more than enough to cause lung cancer which is also commonly
happened older smokers, so destroying active lives. Moreover, smoking also
increasing the risk of heart disease; meanwhile, it also affects to skin and
cause early appearance of wrinkles. Accordingly it might able to be a social problem that the government need to have a solution; for instance, medical service, drug therapy and hospital. Thus, it lead to losing a lot of money. As a result, these examples show
that some affectations of smoking its should be made illegal.(some of the negative effects of smoking, therefore, it should be banned.)On the other hand, personally I partly disagree
about this. Firstly smoking is a personal right. Many smokers generally
known about
affectation; even
so, they
are chosen to do that. Then, smoking is likely to
showing a sign of social
life; for instance, communication or
acceptation. Besides that , smoking might able to generate a lot of tax income into the country. Some country
has a cigaratte which is exported and it is able to increase sort of power in the global negotiation. For these
reason, I appreciate that smoking is probably good in many ways. Thus, I've strongly
agreement on smoking is not illegal.