Exhaustive Analysis of B2-C1 Vocabulary from Thái Nguyên THPT 2026 Mock Exam

Source and Contextual Overview

  • Material Origin: The vocabulary list is derived from the second mock examination (Lần 2) for the 2026 High School Graduation Exam (THPT) administered by the Department of Education and Training (Sở Giáo dục và Đào tạo) of Thái Nguyên province.
  • Target Proficiency Level: The vocabulary corresponds to the B2 and C1 levels of the Common European Framework of Reference for Languages (CEFR), indicating upper-intermediate to advanced linguistic complexity.
  • Objective: To equip students with the necessary lexical resources to navigate complex reading passages, advanced grammar tasks, and academic writing contexts found in high-stakes testing environments.

Detailed Vocabulary Analysis and Definitions

  • 1. Grapple with     * Definition: To struggle to deal with or overcome a difficult problem, situation, or concept.     * Part of Speech: Phrasal verb.     * Exhaustive Explanation: This term often implies a physical struggle, but in an academic context, it refers to the mental effort required to understand or solve complex issues. For instance, a government might grapple with economic inflation, or a student might grapple with a difficult philosophical theory.

  • 2. Detrimental     * Definition: Tending to cause harm; damaging or prejudicial.     * Part of Speech: Adjective.     * Exhaustive Explanation: This word is a formal synonym for "harmful." It is frequently used in scientific or social discussions to describe the negative effects of a specific habit or policy (e.g., "Smoking has a detrimental effect on lung health").

  • 3. Substantial     * Definition: Of considerable importance, size, or worth; strongly built or made.     * Part of Speech: Adjective.     * Exhaustive Explanation: In academic writing, "substantial" is used to describe significant quantities or changes that are not merely incidental. For example, a "substantial increase in funding" implies the change is large enough to be meaningful.

  • 4. Harness     * Definition: To control and make use of (natural resources), especially to produce energy; to utilize or exploit a resource for a particular purpose.     * Part of Speech: Verb.     * Exhaustive Explanation: While it refers to the equipment used on a horse, its metaphorical use is common in technology and environmental science, such as "harnessing solar power" or "harnessing the power of the internet."

  • 5. Feasible     * Definition: Possible to do easily or conveniently; likely or probable.     * Part of Speech: Adjective.     * Exhaustive Explanation: This relates to the practicality of a plan. If a project is "feasible," it means it can be accomplished with the available time, money, and technology. It is a critical term in business and engineering proposals.

  • 6. Fraught     * Definition: Filled with or destined to result in something undesirable; causing or affected by great anxiety or stress.     * Part of Speech: Adjective.     * Exhaustive Explanation: Usually followed by the preposition "with" (e.g., "fraught with danger"). It can also describe a tense atmosphere or relationship (e.g., "a fraught silence").

  • 7. Intermittent     * Definition: Occurring at irregular intervals; not continuous or steady.     * Part of Speech: Adjective.     * Exhaustive Explanation: This describes something that stops and starts. A common example is "intermittent rain" or an "intermittent Wi-Fi signal," where the activity is not constant but recurs over time.

  • 8. Diminish     * Definition: To make or become less; to make someone or something seem less impressive or valuable.     * Part of Speech: Verb.     * Exhaustive Explanation: This describes a reduction in size, importance, or intensity. In an ethical or social context, it can mean to belittle something (e.g., "to diminish someone's achievements").

  • 9. Hinge     * Definition: To depend entirely on something; to be contingent on.     * Part of Speech: Verb (usually used as "hinge on/upon").     * Exhaustive Explanation: Much like a physical hinge allows a door to move, this verbal use suggests that the success or outcome of a whole situation depends on one specific factor. For example, "The success of the project hinges on the final vote."

  • 10. Digital Amnesia     * Definition: The tendency to forget information that can be easily retrieved from a digital device (such as a smartphone).     * Part of Speech: Noun phrase.     * Exhaustive Explanation: This phenomenon, also known as the "Google Effect," suggests that because we know information is stored externally in our devices, our brains are less likely to commit that information to long-term memory. It highlights the psychological implications of our reliance on technology.

Thematic Implications for THPT Exams

  • Environmental and Technological Contexts: Several terms such as "harness," "feasible," and "detrimental" are frequently found in reading comprehension passages regarding renewable energy, climate change, and technological advancement.
  • Psychological and Social Observations: Terms like "digital amnesia" and "grapple with" suggest the exam may include content related to modern lifestyle challenges, mental health, or the sociology of the digital age.
  • Data and Trends: Words like "substantial," "diminish," and "intermittent" are essential for Task 1 style descriptions (if applicable) or for interpreting trends in scientific texts provided within the exam.