The appropriate use of adjectives: In "more exhausting" and "notably more challenging and demanding," the use of adjectives accurately describes the nature of contemporary learning and the characteristics of the curriculum, demonstrating the candidates' ability to enhance descriptions effectively with adjectives.
Effective use of noun phrases: The use of the noun phrases "prolonged exposure to screens" and "eye fatigue" accurately points out the reasons for study fatigue, showing that candidates can effectively use noun phrases to convey complex concepts.
Use of parallel structures: In describing the characteristics of the course, the use of "challenging and demanding" as a parallel structure effectively expresses two complementary points, increasing the amount of information and complexity of the sentence.
Use of complex sentences: "This combination of factors can contribute to..." This sentence uses a complex sentence structure, demonstrating the candidates' ability to use more complex sentence patterns to express causal relationships, which is a typical feature of high-scoring IELTS answers.