English as a subject in the Senior High School Curriculum has always been the center for assessment and evaluation activities to measure its cognitive and academic impact to the students. Like many other language researches done in the past, this paper aims to investigate the reading comprehension and academic performance of Senior High students in English Core Subject such as the Reading and Writing. Further, it investigates the level of Language Skills Acquisition using the theory established by DeKeyser in 2007. The respondents of this study are the students of Technical-Vocational and Livelihood Strand or TVL. The data gathered were interpreted through statistical methods in order to explain the relationships and differences of these factors in the learning process of the students during the advent of Covid-19 pandemic.