Vocabulary: Academic & Formal Vocabulary (C1) - Lesson 6: Using Sophisticated Formal Vocabulary & Grammatical Structures with Precision

Lesson 6: Academic Precision
Academic English C1
Precision & Formal Tone
ការប្រើប្រាស់ពាក្យផ្លូវការ និងច្បាស់លាស់
🖋️
FORMAL
ផ្លូវការ
🎯
PRECISE
ច្បាស់លាស់
📜
STRUCTURE
រចនាសម្ព័ន្ធ

Avoid "Basic" Words 🚫

At C1 level, avoid general words like "good," "bad," "big," or "get." Use specific, sophisticated synonyms.

🏛️ Precise Verbs
Facilitate
/fəˈsɪlɪteɪt/
សម្របសម្រួល / ធ្វើឱ្យងាយស្រួល
Instead of "Help" or "Make easy": "The new software will facilitate remote work."
Elaborate
/ɪˈlæbəreɪt/
ពន្យល់លម្អិត / បរិយាយ
Instead of "Explain more": "Could you please elaborate on that point?"
Substantiate
/səbˈstænʃieɪt/
ដាក់ភស្តុតាងបញ្ជាក់
Instead of "Prove": "You must substantiate your claims with data."
🧐 Sophisticated Adjectives
Ubiquitous
/juːˈbɪkwɪtəs/
ដែលមាននៅគ្រប់ទីកន្លែង
Instead of "Everywhere": "Smartphones have become ubiquitous in modern society."
Detrimental
/ˌdɛtrɪˈmɛntl/
ដែលផ្តល់ផលប៉ះពាល់អាក្រក់
Instead of "Bad" or "Harmful": "Smoking has a detrimental effect on health."
Ambiguous
/æmˈbɪɡjuəs/
ដែលមិនច្បាស់លាស់ (មានន័យច្រើន)
Instead of "Unclear": "The instructions were ambiguous, leading to confusion."
📐 Advanced Structures
Inversion
Structure: Negative Adverb + Aux Verb + Subject "Seldom have I seen such dedication."
(កម្រណាស់ដែលខ្ញុំបានឃើញការលះបង់បែបនេះ)
Participle Clause
Use: To combine sentences or show cause/time "Having finished the report, he left the office."
(បន្ទាប់ពីបញ្ចប់របាយការណ៍ គាត់បានចាកចេញពីការិយាល័យ)

Academic Proficiency 🎓

Select the most precise option.

Replace "made easier":
"The internet has _____ global communication."
Which word implies "Harmful"?
Select the correct Inversion:

Mission 📝

Upgrade Your Writing

Rewrite these sentences:

In your notebook, rewrite these basic sentences using the new vocabulary.

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