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The diagrams below show the life cycle of a lady bird and its anatomy.

The diagrams below show the life cycle of a lady bird and its anatomy.

The first diagram depicts the natural life cycle of a ladybird, while the others provide details about its body structure.

Overall, the life cycle involves four stages, beginning with the egg and ending with a fully developed ladybird. The body of a ladybird is composed of eight segments.

In the first stage, an adult ladybird lays eggs on a leaf. After 2 to 5 days, the eggs hatch into larvae, which grow for about 21 days before entering a dormant phase called the pupal stage. During this stage, the larvae form a protective shell and attach to the leaf, eventually emerging as adult ladybirds.

Regarding body structure, an adult ladybird is divided into three main parts: the head, thorax, and abdomen. The head, which is black with two white spots, houses the eyes and a pair of long, thin sensory appendages called antennae. The thorax features three pairs of legs and two pairs of wings. The outer wings, called elytra, are hard and red, serving as protection for the delicate flight wings underneath. The abdomen, located at the lower part of the body, contains the digestive system and other vital organs.


Gợi ý nâng cấp từ vựng

  1. "the natural life cycle of a ladybird" -> "the biological life cycle of a ladybird"
    Explanation: "Biological" is a more precise term that emphasizes the scientific aspect of the life cycle, making it more suitable for an academic context.

  2. "the others provide details about its body structure" -> "the remaining diagrams provide details regarding its anatomical structure"
    Explanation: "Remaining" is more formal than "others," and "regarding" is a more precise preposition than "about." "Anatomical structure" is a more technical term that aligns better with academic language.

  3. "the life cycle involves four stages" -> "the life cycle comprises four stages"
    Explanation: "Comprises" is a more formal and precise term than "involves," which can be vague.

  4. "the larvae form a protective shell" -> "the larvae develop a protective casing"
    Explanation: "Develop" is a more precise term than "form," and "casing" is more specific than "shell," which can imply a broader range of meanings.

  5. "a dormant phase called the pupal stage" -> "a quiescent phase referred to as the pupal stage"
    Explanation: "Quiescent" is a more formal and precise term than "dormant," and "referred to as" is more academically appropriate than "called."

  6. "the head, which is black with two white spots" -> "the head, characterized by a black coloration with two white spots"
    Explanation: "Characterized by" is a more formal and descriptive phrase than "which is," enhancing the academic tone.

  7. "houses the eyes and a pair of long, thin sensory appendages called antennae" -> "contains the eyes and a pair of elongated sensory appendages known as antennae"
    Explanation: "Contains" is more precise than "houses," and "elongated" is a more formal descriptor than "long, thin." "Known as" is more suitable than "called" in an academic context.

  8. "features three pairs of legs and two pairs of wings" -> "comprises three pairs of legs and two pairs of wings"
    Explanation: "Comprises" is a more formal term than "features," which can sound informal in academic writing.

  9. "serving as protection for the delicate flight wings underneath" -> "providing protection for the delicate flight wings beneath"
    Explanation: "Providing" is a more formal verb choice than "serving," and "beneath" is a more precise term than "underneath."

  10. "the abdomen, located at the lower part of the body" -> "the abdomen, situated at the inferior aspect of the body"
    Explanation: "Situated" is a more formal term than "located," and "inferior aspect" is a more precise anatomical term than "lower part."

Band điểm Task Achivement ước lượng: 7

Band Score: 7

Explanation: The essay covers the requirements of the task and presents a clear overview of the main trends in the life cycle of a ladybird. It also clearly presents and highlights key features/bullet points, such as the four stages of the life cycle and the three main parts of the ladybird’s body. However, the essay could be more fully extended by providing more detail about the different stages of the life cycle and the functions of the different body parts.

How to improve: The essay could be improved by providing more detail about the different stages of the life cycle. For example, the essay could mention that the larvae are voracious eaters and that they molt several times as they grow. The essay could also provide more detail about the functions of the different body parts. For example, the essay could mention that the antennae are used for sensing the environment and that the wings are used for flying.

Band điểm Coherence & Cohesion ước lượng: 7

Band Score: 7.0

Explanation: The essay logically organizes information about the life cycle and anatomy of a ladybird, demonstrating clear progression throughout. Each stage of the life cycle is presented sequentially, and the body structure is described in a coherent manner. The use of cohesive devices is appropriate, although there are instances where they could be more varied to enhance flow. Each paragraph presents a clear central topic, contributing to the overall coherence of the essay.

How to improve: To achieve a higher band score, the essay could benefit from a more varied use of cohesive devices to avoid any mechanical feel. Additionally, enhancing the paragraphing by ensuring that each paragraph not only presents a central topic but also connects more fluidly to the next could improve coherence. Providing clearer references back to previously mentioned ideas would also strengthen the overall cohesion.

Band điểm Lexical Resource ước lượng: 7

Band Score: 7.0

Explanation: The essay demonstrates a sufficient range of vocabulary that allows for some flexibility and precision in conveying the information about the life cycle and anatomy of a ladybird. The use of terms such as "dormant phase," "protective shell," and "sensory appendages" indicates an awareness of less common lexical items. However, there are occasional inaccuracies in word choice and a lack of more sophisticated vocabulary that would elevate the score. Additionally, while the essay is generally clear, there are minor errors in phrasing that slightly detract from the overall quality.

How to improve: To enhance the lexical resource score, the writer could incorporate a wider variety of sophisticated vocabulary and expressions related to biological processes and anatomy. For instance, using terms like "metamorphosis" instead of "dormant phase" or "exoskeleton" instead of "protective shell" would demonstrate a higher level of lexical sophistication. Additionally, ensuring precise word choices and avoiding any repetitive phrasing would improve clarity and impact.

Band điểm Grammatical Range & Accuracy ước lượng: 7

Band Score: 7.0

Explanation: The essay demonstrates a variety of complex structures and produces frequent error-free sentences, which aligns well with the criteria for Band 7. The grammatical range is good, with appropriate use of both simple and complex sentences. However, there are some minor errors and awkward phrasings that slightly detract from the overall accuracy and fluency, preventing a higher score.

How to improve: To achieve a higher band score, the writer should focus on enhancing the accuracy of complex sentence structures and minimizing errors. This can be done by proofreading for grammatical mistakes and ensuring that all sentences flow smoothly. Additionally, incorporating a wider range of vocabulary and varying sentence beginnings could further demonstrate flexibility and sophistication in writing.

Bài sửa mẫu

The first diagram illustrates the natural life cycle of a ladybird, while the subsequent diagrams detail its anatomical structure.

Overall, the life cycle comprises four stages, commencing with the egg and culminating in a fully developed ladybird. The anatomy of a ladybird is made up of eight segments.

In the initial stage, an adult ladybird lays eggs on a leaf. After a period of 2 to 5 days, the eggs hatch into larvae, which grow for approximately 21 days before entering a dormant phase known as the pupal stage. During this phase, the larvae form a protective shell and attach themselves to the leaf, eventually emerging as adult ladybirds.

Concerning anatomical structure, an adult ladybird is divided into three main parts: the head, thorax, and abdomen. The head, which is black with two white spots, contains the eyes and a pair of long, slender sensory appendages known as antennae. The thorax features three pairs of legs and two pairs of wings. The outer wings, referred to as elytra, are hard and red, serving to protect the delicate flight wings beneath. The abdomen, located at the lower part of the body, houses the digestive system and other essential organs.

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