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Grammar Focus • C1 Level

Adjective Before A + Noun

Master word order patterns with so, too, as, how, and however.

⏱️ 12 Minutes

📌 How to Use This Lesson

👩‍🏫 For Teachers

Guide students through the 4 pattern rules first, pointing out where the word "a" or "an" sits. Allow 12 minutes for students to complete the 12 practice items, then review answers together using the included explanation notes.

🎓 For Learners

Read each rule box carefully and pay attention to where the word "a" or "an" goes in the sentence. Try all 12 practice items from easy to hard, using the small clue word in brackets if you need help.

Model Pattern: "That is too heavy a price to pay for a few cheap fields."

📘 Grammar Rules & Patterns

Unit Context: Peatlands & Carbon Storage

Rule 1 so + adjective + a / an + singular noun

After so, put the describing word before a or an. This order works only with one thing that can be counted. For more than one thing, use such.

Ex 1: The path was so narrow a track that only one walker could pass through the waterlogged bog.

Ex 2: The reserve contains so fragile an ecosystem that any damage could release stored methane.

Rule 2 too + adjective + a / an + singular noun (+ to + verb)

After too, put the describing word before a or an. This shows that something goes beyond what is acceptable. It is often followed by to with an action word.

Ex 1: It is too hard a task for one team to restore the fen in a single season.

Ex 2: Peat extraction carries too great a risk to justify short-term economic gains.

Ex 3: It is too hard a task for one person to finish in a day.

Rule 3 as + adjective + a / an + singular noun + as

Between as and as, put the describing word before a or an. Do not put a before the describing word.

Ex 1: She is as keen a researcher as her colleague studying carbon sequestration.

Ex 2: This bog is as large a store of carbon as the fen next to it.

Ex 3: She is as keen a walker as her brother.

Rule 4 how / however / this / that + adj + a / an + noun

Words like how, however, this, and that keep the describing word before a or an. But words like such, quite, rather, and what put a or an first.

Ex 1: How serious a loss of stored carbon occurs when a waterlogged bog dries out!

Ex 2: However small a share of global land peat covers, it holds a huge amount of carbon.

Ex 3: How great a difference a few days of rain can make! However small a share it was, it mattered.

✅ Correct Structures (DO)

• so rare a plant (Adjective before "a")
• too great a risk (Adjective before "a")
• as large a store (Adjective before "a")
• such a long walk ("such" before "a")

⚠️ Common Mistakes (AVOID)

× so a rare plant
× a too great risk
× as a large store as
× such long a walk

✏️ Practice Exercises (12 Items)

Easy ➔ Hard

Part 1: Multiple Choice - Choose the Correct Sentence

Which sentence uses the correct word order with "so"?

____ a. The long drought caused so a dry summer that the peat caught fire. ____ b. The long drought caused so dry a summer that the peat caught fire. ____ c. The long drought caused such dry a summer that the peat caught fire.

Which sentence uses the correct word order with "too"?

____ a. Converting ancient peatlands to farmland is too high a price to pay for short-term profits. ____ b. Converting ancient peatlands to farmland is a too high price to pay for short-term profits. ____ c. Converting ancient peatlands to farmland is too a high price to pay for short-term profits.

Which sentence uses the correct word order with "as...as"?

____ a. This reserve protects as a rich fen as any wetland in Northern Europe. ____ b. This reserve protects such rich a fen as any wetland in Northern Europe. ____ c. This reserve protects as rich a fen as any wetland in Northern Europe.

Part 2: Sentence Rewrite - Change "such a" to "so + adjective + a / an + noun"

Instruction: Rewrite each sentence below replacing "such a" with the "so" pattern. Change no other words!

Original sentence:

"It was such a wet summer that the pond overflowed."

Your rewritten sentence: ____

Original sentence:

"The team faced such a complex challenge during the bog restoration."

Your rewritten sentence: ____

Original sentence:

"The site emitted such a high volume of methane last year."

Your rewritten sentence: ____

Part 3: Fill in the Gaps - Complete the Missing Adjective

Instruction: Fill in the single word described by the bracketed clue (adjective).

Complete the sentence:

The restored fen sequesters carbon at so ____ (adjective) a rate that experts are amazed.

Complete the sentence:

How ____ (adjective) a loss of stored methane occurred when the peatland dried out!

Complete the sentence:

Peat extraction remains too ____ (adjective) a risk to justify short-term land conversion.

Part 4: Error Correction - Fix Mistakes in Notes & Messages

Instruction: Read the short notes below and correct the mistaken phrase.

Message from a colleague:

"Hi team, we recorded such long a regrowth period after rewetting the fen that we must update our timeline."

Type the corrected phrase (using "so"): ____

Field research summary note:

"However a small share of global land peat covers, it sequesters a great deal of carbon."

Type the corrected phrase (using "however"): ____

Environmental report excerpt:

"That is a too heavy methane footprint for one facility to generate without paying penalties."

Type the corrected phrase (using "too"): ____

Adjective Before A + Noun

Adjective Before A + Noun

📌 How to Use This Lesson

📘 Grammar Rules & Patterns

✅ Correct Structures (DO)

⚠️ Common Mistakes (AVOID)

✏️ Practice Exercises (12 Items)

Part 1: Multiple Choice - Choose the Correct Sentence

Part 2: Sentence Rewrite - Change "such a" to "so + adjective + a / an + noun"

Part 3: Fill in the Gaps - Complete the Missing Adjective

Part 4: Error Correction - Fix Mistakes in Notes & Messages

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