고1 영어 독해 문장 분석 부탁드려요

영어 독해 문장 두 개의 구조를 분석하고 싶어요.
1) Both sensed a lack of respect and felt as if they were not being listened to when this response was used.
2) The second group was exposed to the same scientists, but in addition they were told about the series of steps that the scientists took—the trials, errors, and setbacks on the road to scientific success.
첫 문장에서 sensed와 felt가 동사인지, as if절이 felt의 목적어 역할을 하는지 궁금해요.
두 번째 문장은 어디서 끊어 읽으면 되는지도 알려주세요.