Answers and an explanation for each question appear once you add this activity to your own library.

Target: 7.0-7.5

Module 1: Getting Started with Preservation

Build up the key words, natural phrases, and clear sentence patterns you need before tackling Part 3 speaking topics.

📌 How to use this lesson

For the Teacher

Use these activities to warm up, taking about 15 minutes.

Check student answers and review common mistakes via the AI dashboard.

For the Learner

Start by reviewing the vocabulary and sentence patterns carefully.

Then try the fun facts quiz to test your memory and guess the answers.

1 Vocabulary Review

Complete each sentence using one suitable word from the word bank below.

Word Bank

ferment brine vinegar pickle yeast microbe acidity spoilage sterilise dehydrate

1. To keep cucumbers crisp and free of harmful bacteria, traditional cooks immerse them in a salty ___.

____

2. Before sealing jars of preserves for the winter, you must ___ the glassware in boiling water to kill any lingering pathogens.

____

3. In artisan bread-making, baker's ___ digests natural sugars and generates carbon dioxide bubbles that lift the dough.

____

4. Leaving fresh meat unchilled in warm weather causes rapid ___, making it completely unsafe to eat.

____

5. An ancient technique to prevent fruit from rotting is to ___ it by sun drying.

____

2 Common Collocations

Match each collocation to its exact meaning. Notice how no meaning repeats any word from the collocation.

Collocation: natural spoilage

____ A biochemical transformation carried out by microscopic cultures ____ The organic breakdown of fresh produce over time ____ A concentrated saline bath used for immersion

Collocation: bacterial fermentation

____ A biochemical transformation carried out by microscopic cultures ____ An invisible living particle drifting through ventilation ____ A sharp, sour chemical condition that suppresses mold

Collocation: high acidity

____ A fermented apple solution applied in cooking ____ A concentrated saline bath used for immersion ____ A sharp, sour chemical condition that suppresses mold

Collocation: salt brine

____ The organic breakdown of fresh produce over time ____ A concentrated saline bath used for immersion ____ An invisible living particle drifting through ventilation

Collocation: airborne microbe

____ An invisible living particle drifting through ventilation ____ A biochemical transformation carried out by microscopic cultures ____ A fermented apple solution applied in cooking

Collocation: cider vinegar

____ A sharp, sour chemical condition that suppresses mold ____ The organic breakdown of fresh produce over time ____ A fermented apple solution applied in cooking

3 Useful Sentence Patterns

Master these four natural sentence patterns to explain processes smoothly and emphasize your main points in Speaking Part 3.

Pattern 1: Sequence Actions

The mixture is left for ..., after which ...

"The mixture is left for a few days, after which it is ready to eat."

Why this works: Connects two events in chronological order without needing to start a new sentence.

Pattern 2: Focus on What Matters

It is ... that makes the difference.

"It is the controlled environment that makes the difference."

Why this works: Puts sharp emphasis on the decisive factor in your argument.

Pattern 3: Describe Gradual Change

... is left to rest ..., and the ... slowly ...

"Dough is left to rest overnight, and the yeast slowly fills it with tiny bubbles."

Why this works: Gives your explanation a natural rhythm and vivid physical detail.

Pattern 4: Show the Alternative

Without ..., the entire batch would simply ...

"Without proper salt levels, the entire batch would simply rot within days."

Why this works: Highlights necessity by pointing out what goes wrong if a step is skipped.

4 Preservation Fun Facts

Test your instincts on these historical preservation milestones before you reveal the full fact.

Fact 1

In what year did UNESCO add kimjang, the making and sharing of kimchi in the Republic of Korea, to its Representative List of the Intangible Cultural Heritage of Humanity?

____ 1993 ____ 2013 ____ 2023

Fact 2

In 1795, what prize amount did the French government offer to anyone who could find a way to keep food from spoiling?

____ 1,200 francs ____ 12,000 francs ____ 120,000 francs

Target: 7.0-7.5

Module 2: Speaking Practice - Part 3

Answer these discussion questions out loud using natural spoken expressions, personal details, and clear explanations.