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A2 English • Unit: Light & Nature

Rainbows and Light 🌈✨

Learn 10 everyday words about light, rainbow shapes, and colors in 20 minutes.

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💡 How to use this lesson

For Teachers

• Guide students through the word table, practice items, and shadowing in 20 minutes.
• Check answers instantly using the interactive inputs and recording boxes.

For Learners

• Read the words, meanings, and memory tips first in the Word Table.
• Complete the 16 practice questions next, then record your voice in Shadowing.

Word table

10 Vocabulary Words

A vivid glass prism standing outdoors on green grass under bright sunbeams, creating a colorful rainbow arc with violet

Sunbeams pass through water droplets and prisms to make bright rainbow arcs in the sky.

Theme 1: Light

Word	Meaning	Common Collocations	Example Sentence	Memory Tip
ray	A line of light coming from the sun or a lamp	sun ray, light ray	A bright ray of light enters the room.	Sounds like "day" — light in the day.
prism	A glass object that splits light into rainbow colors	glass prism, small prism	Clear light goes into the glass prism.	Picture a triangular glass block.
reflection	An image you see in a mirror or clear water	water reflection, light reflection	She sees her reflection in the lake.	"Re" means back — light bounces back!
sunbeam	A warm beam or ray of sunlight	bright sunbeam, warm sunbeam	The cat sleeps under a warm sunbeam.	Sun + beam = a warm beam of sun.

Theme 2: In the sky

Word	Meaning	Common Collocations	Example Sentence	Memory Tip
horizon	The far line where land or sea meets the sky	ocean horizon, distant horizon	The sun sets below the blue horizon.	Horizon sounds like horizontal: a flat line where sky meets Earth.
arc	A curved shape like part of a circle	wide arc, rainbow arc	A rainbow forms a bright arc in the sky.	Looks like the curved letter "C".
droplet	A very small drop of liquid	water droplet, rain droplet	Sunlight passes through each water droplet.	Drop + let = a tiny little drop.

Theme 3: What it looks like

Word	Meaning	Common Collocations	Example Sentence	Memory Tip
double	Two of the same thing together	double rainbow, double door	We saw a rare double rainbow today.	Double = 2 times! Two rainbows together.
violet	A bluish-purple color	violet light, violet color	The bottom stripe of the rainbow is violet.	Sounds like a purple flower.
beautiful	Very nice to look at	beautiful sight, beautiful colors	The rainbow looks beautiful in the sky.	Beauty + full = full of beauty!

Practice

16 Interactive Tasks

Part 1: Collocation Matching

Select the right word that matches the target word to make a natural pair.

1. Choose the word that pairs with "sun":

____ sun ray ____ sun horizon ____ sun arc

2. Choose the word that pairs with "water":

____ water prism ____ water droplet ____ water arc

3. Choose the word that pairs with "light":

____ violet light ____ double light ____ sunbeam light

4. Choose the word that pairs with "rainbow":

____ ray rainbow ____ double rainbow ____ droplet rainbow

Part 2: Gap-fill with Word Bank

Fill in each blank with the correct word from the bank below.

horizon droplet sunbeam prism

5. Dialogue in the morning:

A: Look! A warm ____ is shining on the rug.

Hint: starts with s

6. Science classroom experiment:

The teacher shines white light into a glass ____ to show rainbow colors.

Hint: starts with p

7. Evening at the beach:

The red sun slowly sets below the ocean ____.

Hint: starts with h

8. After the rain:

Every small water ____ on the leaf bends the light.

Hint: starts with d

Part 3: Choose the Word

Choose the single word option that makes the best sense in the sentence context.

9. A single bright ___ of sunlight passes through the dark cloud.

____ a. ray ____ b. horizon ____ c. droplet

10. The rainbow makes a big colorful ___ over the green hill.

____ a. reflection ____ b. prism ____ c. arc

11. Water drops bend light into red, yellow, and ___ colors.

____ a. sunbeam ____ b. violet ____ c. double

12. We took a ___ photo of the rainbow.

____ a. double ____ b. beautiful ____ c. violet

Part 4: Sentence Building

Put the given words in the correct order to form a full sentence.

13. Words: shines / A / sun / ray

Reorder into 4 words:

____

14. Words: looks / violet / Light / bright

Reorder into 4 words:

____

15. Words: is / arc / A / rainbow / curved / a

Reorder into 6 words:

____

16. Words: see / beautiful / We / double / a / rainbow

Reorder into 6 words:

____

Shadowing

12 Recording Items

Listen to each English audio prompt, then press record to speak out loud clearly.

Collocation 1

bright sunbeam

[Bài tập luyện nói]

____

Collocation 2

water reflection

[Bài tập luyện nói]

____

Collocation 3

rainbow arc

[Bài tập luyện nói]

____

Collocation 4

beautiful rainbow

[Bài tập luyện nói]

____

Sentence 1

The sunbeam is very warm.

[Bài tập luyện nói]

____

Sentence 2

Look at the violet light.

[Bài tập luyện nói]

____

Sentence 3

Water droplets form a rainbow.

[Bài tập luyện nói]

____

Sentence 4

We saw a double rainbow.

[Bài tập luyện nói]

____

Extra Sentence 1

The sun sets below the horizon.

[Bài tập luyện nói]

____

Extra Sentence 2

I see my reflection in water.

[Bài tập luyện nói]

____

Target Word: Horizon

horizon

[Bài tập luyện nói]

____

Target Word: Reflection

reflection

[Bài tập luyện nói]

____

Vocabulary: Rainbows and Light

Rainbows and Light 🌈✨

💡 How to use this lesson

For Teachers

For Learners

Word table

Theme 1: Light

Theme 2: In the sky

Theme 3: What it looks like

Practice

Part 1: Collocation Matching

Part 2: Gap-fill with Word Bank

Part 3: Choose the Word

Part 4: Sentence Building

Shadowing

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