是否应为每户家庭免费供水

The position of agreement is clear and supported with developed ideas on ethical and practical grounds, though the second body paragraph focuses mainly on feasibility, slightly narrowing the extension of the core argument.

Ideas are logically organised with clear paragraphing and a range of cohesive devices used naturally, although transitions such as 'In spite of all that' occasionally simplify the logical relationships.

Vocabulary is flexible and generally precise, with effective use of terms like 'potable', 'ethically right', and 'justifiable', with only minor imprecision.

A wide range of structures is used with strong control, including complex conditionals and relative clauses, and errors are rare and non-impeding.

The response addresses the task with a clear position throughout and relevant main ideas, but it is 34 words below the minimum and some arguments, such as the pricing rebuttal, remain underdeveloped.

Ideas are organised logically across clear paragraphs with effective cohesive devices and a smooth counterargument-to-rebuttal progression.

Vocabulary is sufficiently flexible and precise for the topic, with natural collocations like water-saving technologies and monetized, though occasional minor spacing slips and limited idiom keep it short of full flexibility.

A good range of complex structures, including conditionals and relative clauses, is used with generally strong accuracy and only minor punctuation faults.

The response fully addresses the question with a clear, consistently maintained position, well-developed main ideas, and relevant supporting examples.

Ideas progress logically across clearly organised paragraphs with a range of cohesive devices used naturally, though some repetition of key points slightly reduces variety.

Vocabulary is sufficiently flexible and precise, with effective use of topic-related terms such as sanitation and dysentery, though some phrasing is mildly formulaic.

A wide range of complex structures, including conditionals and relative clauses, is used with good control and only occasional minor inaccuracy.

The position is clear throughout, both sides of the practical and moral dimensions are developed with relevant supporting examples, and the response addresses the question directly, though the conclusion slightly overstates the case relative to the more nuanced body discussion.

Ideas are organised logically into well-sequenced paragraphs with a clear stance, effective transitions, and a conclusion that follows from the argument, with only minor looseness in linking the tiered-pricing solution to the final recommendation.

Vocabulary is flexible and precise, with natural collocations such as 'engenders serious challenges', 'strained reservoirs', and 'financial ramifications', showing good awareness of style with only occasional less apt phrasing.

A wide range of structures is used with flexibility and accuracy, including complex conditionals and relative clauses, and error-free sentences predominate with no mistakes that impede communication.

The essay directly addresses the question with a clear, qualified position, develops each main idea fully, and supports it with relevant examples including infrastructure costs and the South African allowance.

Ideas progress logically across well-structured paragraphs with cohesive devices used skilfully and naturally, producing a consistently clear line of argument.

Vocabulary is wide and precise, with natural use of topic-specific items such as tariffs, infrastructure, and water-stressed, and only rare minor slips.

A wide range of structures, including complex concession and conditional sentences, is used flexibly and accurately with frequent error-free clauses.

The response fully addresses the question with a clear, consistent position, well-developed main ideas on both sides, and relevant supporting examples, reaching a balanced, qualified conclusion.

Ideas progress logically across well-organized paragraphs with a range of cohesive devices used naturally, though transitions are occasionally formulaic and development within points is somewhat generalized.

Vocabulary is flexible and precise, with natural collocations such as safeguarding public health, financial constraints, and overconsumption, showing strong awareness of style with only minor imprecision.

A wide range of complex structures is used with generally strong control, including effective conditionals and relative clauses, though some sentences are dense and a few constructions are slightly mechanical.