1 . We are faced with all kinds of information on the internet, so we can't tell the difference between the true and the false, which may be harmful to our study and life. （用非谓语动词转换）

2 . He loses himself physically in nicotine. The nicotine is one of the hazardous chemicals in cigarettes.（进行同义句转换，并合并成一个定语从句）
He becomes physically ________ ________nicotine, ________ ________one of the hazardous chemicals in cigarettes.