睡眠不足的问题与解决办法

Both questions are fully addressed with a clear, relevant set of problems and solutions, though ideas are developed in a general, somewhat list-like way rather than being fully extended.

The essay progresses logically through clear paragraphs with effective cohesive devices, but cohesion is occasionally mechanical and solution points are sequenced as lists rather than connected ideas.

A good range of topic-specific vocabulary is used flexibly and accurately, such as sleep deprivation, sleep-conducive environment, and susceptibility to illnesses, with only minor reliance on formulaic phrasing.

Complex structures, including relative clauses and participial phrases, are generally well controlled, and sentences are frequently error-free. Repeated patterns such as 'can also' and 'can help' make the grammatical range less varied in practice.

The response fully addresses both questions with a clear position, relevantly developed main ideas, and appropriate examples from everyday experience.

Ideas progress logically across well-structured paragraphs with a range of cohesive devices used flexibly, though linking remains at times predictable.

Vocabulary is sufficiently flexible and precise, with good use of topic-specific terms such as melatonin, cognitive function, and internal body clock, alongside only minor repetition.

A variety of complex structures, including relative clauses and clauses introduced by “when”, is used with good control and frequent error-free sentences.

Both questions are fully addressed with a clear position, well-developed main ideas, and relevant supporting examples, though some claims remain generalised rather than fully elaborated.

Ideas progress logically across clear paragraphs with effective linking devices, although some transitions such as repeated 'Moreover' are used somewhat mechanically.

A sufficient range of topic-related vocabulary is used with some flexibility, but choices such as 'imminent', 'insomnolence' and 'sleep faster' reduce clarity or precision in context.

Complex sentences are generally controlled, including relative clauses and coordinated clauses. The opening 'seem like sleeping' misuses the complement after 'seem', and the relative clause about 'others who suffer' obscures who experiences the stated difficulties.

The response addresses both questions directly, presents relevant developed ideas on health and cognitive effects and practical solutions, though the second body paragraph is thinner with solutions listed rather than fully extended.

Ideas are organised logically across clear paragraphs with appropriate cohesive devices, although some linking is slightly mechanical and one transition is awkwardly used.

There is a good range of topic-related vocabulary such as 'cognitive functions', 'hormonal balance' and 'regulating the body's internal clock', with only occasional unnatural collocations like 'are a victim of not obtaining sufficient sleep'.

A variety of complex structures is used with generally good control, but faulty constructions such as 'To elaborate it, by adhering to a sleep schedule... is a very effective way' show lapses in accuracy.

The response addresses both questions directly, presents relevant problems and solutions with clear main ideas and some supporting examples, though development of individual points remains somewhat concise.

The text progresses clearly from problems to solutions and a conclusion, with signposts such as In addition, A second and To conclude. The supplied source is one paragraph; separating these main stages would make the organisation more visible.

Vocabulary is flexible and generally precise, including 'sleep-inducing hormone', 'wind down' and 'prone to irritability', although describing hormone levels as tablets is an imprecise use of meaning.

A range of complex structures is used with generally good control, though a parallelism error ('perhaps more importantly, to reduced ability') and minor slips show accuracy is not consistently faultless.