Band 4+: The diagram below shows how one type of desert, known as a rain-shadow desert, is formed. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The report effectively covers the main stages of the rain-shadow desert formation process, with a clear overall description and logical sequencing. The key features are selected and presented appropriately. However, there are some minor omissions (e.g., the scale of thousands of kilometres is mentioned but not elaborated) and a few inaccuracies in phrasing (e.g., 'represends' instead of 'represents', 'a mountains' instead of 'mountains'). The report could be improved by using more precise vocabulary and ensuring grammatical accuracy. Additionally, including a brief comparison between the windward and leeward sides would enhance the response. Overall, the task requirements are well addressed. The report falls short of the required 150 words.

The report has a basic structure with an introduction and an overview, but the progression of ideas is not always clear. The description of the steps is somewhat disjointed, and the use of cohesive devices is limited and occasionally inaccurate (e.g., 'The first steps of diagram represents that winds...'). To improve, use a wider range of linking words and phrases (e.g., 'subsequently', 'following this', 'as a result') to show the sequence and cause-effect relationships more clearly. Also, ensure each paragraph focuses on a distinct stage of the process.

The vocabulary used is adequate for the task but lacks variety and precision. There are some errors in word choice and form (e.g., 'represends', 'a mountains', 'the first steps of diagram'). To improve, use more specific and accurate terms related to geography and weather (e.g., 'moist air', 'condensation', 'precipitation', 'arid conditions'). Also, avoid repetition by using synonyms (e.g., 'process', 'stage', 'phase' instead of just 'step').

The report contains several grammatical errors that affect clarity, including subject-verb agreement issues ('winds... pushed'), incorrect article usage ('a mountains'), and incomplete sentences. Sentence structures are mostly simple and repetitive. To improve, practice using a variety of sentence structures (e.g., complex sentences with relative clauses, conditional clauses). Also, carefully proofread for basic grammar and punctuation errors to ensure accuracy.