A2CEFRGrammar12 min

Luyện tập: So sánh trong vũ trụ

As ... as and different from

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Space Mission A2

🚀 Mission Control: Making Comparisons

📡 Target: as...as & different from
A rocket standing vertically next to a tall building, clear background, realistic art style
Two glowing stars in deep space, side by side, bright and clear

🧑‍🏫 For Teachers

  • • Give 12 minutes for quick review and individual practice.
  • • Check answers together and practise the 4 patterns.

👨‍🚀 For Cadets (Students)

  • • Read the 4 rule cards carefully before launching exercises.
  • • Complete all 12 mission checks using the hints in brackets.

🪐 Core Flight Patterns

Four clear ways to compare things across the solar system.

1. Equal as + adjective + as

Use when two things share the exact or similar quality.

Example: "Venus is nearly as big as Earth."
2. Less / Not Equal not as + adjective + as

Use when the first thing has less of a quality than the second.

Example: "Mars is not as big as Earth."
3. Same the same (+ noun) as

Use when things share the exact same measurement or name.

Example: "A day on Mars is about the same length as a day on Earth."
4. Not the same different from

Use when two things are not alike in character or nature.

Example: "Venus is very different from Earth."

⚡ Look Out! Space Navigation Warnings

✅ Correct Navigation

  • • "The Moon is different from Mars." (Always use from)
  • • "The rocket is as tall as a building." (Always keep both as words)

⚠️ Common Flight Traps

  • • "The Moon is different than Mars."
  • • "The rocket is as tall a building." (Missing second as)
STAGE 1

Mission Choice (Multiple Choice)

Question 1 / 12 Hint: (hot)

Star Alpha and Star Beta both have a surface temperature of 6,000°C. Which sentence is correct?

Choose the sentence that correctly compares their temperature.

____ Star Alpha is as hot than Star Beta. ____ Star Alpha is as hot as Star Beta. ____ Star Alpha is the same hot as Star Beta.
Question 2 / 12 Hint: (different)

Earth's moon orbits at 384,000 km. Jupiter's moon Europa orbits at 670,000 km. Which sentence is correct?

Choose the sentence that correctly compares their distance.

____ The moon's distance is different than Europa's distance. ____ The moon's distance is different with Europa's distance. ____ The moon's distance is different from Europa's distance.
Question 3 / 12 Hint: (heavy)

Planet Mercury has less mass and weight than planet Neptune. Which sentence is correct?

Choose the sentence that shows Mercury is smaller in weight.

____ Mercury is not as heavy as Neptune. ____ Mercury is not so heavy than Neptune. ____ Mercury is not as heavier as Neptune.
STAGE 2

Control Panel Fill (Fill-in-the-gaps)

Question 4 / 12 Hint: (speed)

Rocket Apollo and Rocket Orion both travel at 28,000 km/h.

Rocket Apollo travels at ____ Rocket Orion.

Type the missing words (4).

Question 5 / 12 Hint: (easy)

Walking on Earth is simple, but for an astronaut, learning to float in zero gravity is much harder.

Floating in space is ____ walking on Earth.

Type the missing words (4).

Question 6 / 12 Hint: (quiet)

Deep space has no sound. A special test room on Earth has no sound too.

The test room is ____ deep space.

Type the missing words (3).

STAGE 3

Orbit Rewrite (Sentence Transformation)

Question 7 / 12 Hint: (big)

Rewrite the sentence using the word in brackets so it means the same thing:

"Planet Mars is smaller than planet Earth."
Planet Mars is ____ planet Earth.
Question 8 / 12 Hint: (cold)

Rewrite the sentence using the word in brackets so it means the same thing:

"The moon is colder than the space station."
The space station is ____ the moon.
Question 9 / 12 Hint: (far)

Rewrite the sentence using the word in brackets so it means the same thing:

"A rocket travels further into space than an airplane."
An airplane does not travel ____ a rocket.
STAGE 4

Space Chat Error Hunt (Error Correction)

Astronaut Alex sent messages from orbit, but each message contains one grammar mistake. Find and fix it!

Question 10 / 12 Hint: (than)

📡 Incoming Message #1

"Living in space is very different than living on Earth."

Type the correct single word to replace "than": ____
Question 11 / 12 Hint: (bright)

📡 Incoming Message #2

"Look at that bright star! Through my window, it is as bright the morning Sun."

Type the missing word needed after "bright": ____
Question 12 / 12 Hint: (same)

📡 Incoming Message #3

"The temperature inside my suit is the same to the air in the space station."

Type the correct single word to replace "to": ____

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