In grammar, the gerund and the present participle are both types of words derived from verbs and that end in -ing. For example, the words "playing", "fishing" and "golfing" can work either as a gerund or as a participle. However, there is a big difference between the function of each one, in the case of gerunds the word that ends in -ing work as a noun, which is usually the subject of a sentence; on the other hand, in the case of participles these words work as a verbs or even and adjective. Considering this, in the case of the word "Golfing" from the sentence "Golfing can be an expensive hobby", it can be concluded this word is a gerund and not a participle because "Golfing" refers to a noun and indeed is the subject or agent that performs the action "can be" instead of acting as an adjective or verb.
They think that Betty has been bewitched so if she really was she would not be able to survive hearing the Lord's name. More likely the reason was that she heard everything about the affair between John Proctor and Abby.