Unit 10 CAREER CHOICES
LESSON 3: A CLOSER LOOK 2

Unit 10 PLANET EARTH
LESSON 3: A CLOSER LOOK 2

WARM-UP

OPTION 1

WARM-UP

OPTION 1

1. The man ______ taught us science
last year was Mr Nam.

when
which

what
who

WARM-UP

OPTION 1

2. We are playing a game ______ was designed
by our teacher.

who
which

where
how

WARM-UP

OPTION 1

3. The woman ______ we visited
last summer is my former English teacher.

which
when

who
whose

OPTION 1

WARM-UP

4. We are learning about the planet ______
has green trees and living things.

where
which

who
whose

WARM-UP

OPTION 1

5. I go to the school ______ my mother
went to when she was small.

where
who

how
which

WARM-UP

OPTION 2

Planet Earth
Pictionary

WARM-UP

HOW TO PLAY

OPTION 2
- Work in pairs.
- One student in each pair secretly draws
a picture of a natural phenomenon or
geographical feature related to Earth.

- The other student, using relative clauses, must describe the
picture to their partner without explicitly naming it.
- The partner guesses the phenomenon or feature within the set
time limit.
- The most correct guess within the time limit wins!

WARM-UP

EXAMPLE

OPTION 2

It's an area of coral,
the top of which
can sometimes
be seen just above
the sea.

WARM-UP

EXAMPLE

OPTION 2

It's a tall, sleeping
mountain that is covered
in green forests and
dotted with fluffy white
clouds. But sometimes,
this mountain wakes up
in a very dramatic way!

WARM-UP

OPTION 2

LET'S PLAY.

PRESENTATION

– We use non-defining relative clauses to add extra information.
Example: Earth, which is the third planet from the Sun,
depends much on the Sun for its energy.
– If we remove the non-defining relative clause, the sentence
still makes sense.
Example: Earth depends much on the Sun for its energy.
– We use comma(s) with non-defining relative clauses.
– Relative pronouns cannot be omitted in non-defining relative
clauses.

PRACTICE

1 Complete the sentences with correct relative pronouns.
1. Planet Earth, ______
which is also called the Blue Planet, is covered with
water and land.
2. Peter Molnar, _____
who has done many studies on climate change, is
one of the best-known Earth scientists.
3. Neil Armstrong, ______
whose trip to the moon marked a giant leap for
mankind, was the first to walk on the moon.
4. Suoi Thau, ______
which is in Ha Giang, is one of the most gorgeous
grasslands in Viet Nam.
5. People often do green things to protect Earth on the Earth Day,
______
which is celebrated on 22nd April.

PRACTICE

2 Underline the relative clauses. Tick (√) if the relative clause can be omitted.
1.__ The second planet from the Sun is Venus, which is
sometimes called the Earth's sister.
2.__ The ocean, which is the body of salt water, contains
97% of Earth's water.
3.__ Landforms make up the areas which include mountains,
hills, plains, and plateaus.

PRACTICE

2 Underline the relative clauses. Tick (√) if the relative clause can be omitted.
4. ___ One of the world's most famous Earth scientists is
James Hutton, who is a British geologist.
5. ___ Arctic Ocean ice and water make up a habitat for
polar bears, whose main food is seals.

PRACTICE

3 Complete each sentence (1-5) with a non-defining relative clause (A-E).
A. which is a Germanic word
B. which is also called the Red Planet
C. whose radius is nearly 4 million miles
D. who explained ecological balance to us
E. which has a large collection of animals,
birds and reptiles, and unique plants

1. Mars, ____,
B is very
much similar to Earth.
2. Earth, ____,
C is the
fifth largest planet in
our solar system.
3. The name of our
planet, ____,
A simply
means “the ground”.

PRACTICE

A. which is a Germanic word
B. which is also called the Red Planet
C. whose radius is nearly 4 million miles

E
4. Cat Ba National Park, ____,
is one of the most famous
tropical rainforests in Viet
Nam.

D. who explained ecological balance to us 5. We were interested in the
D
E. which has a large collection of animals, talk by Mr An, ____.
birds and reptiles, and unique plants

PRACTICE

4

Combine the two sentences into one, using a non-defining relative clause.

1. The Moon is Earth's only natural satellite. Its surface is dark.
The Moon, whose surface is dark, is Earth's only natural satellite.
_____________________________________________________
2.
. Moonquakes are much weaker than Earthquakes. Moonquakes
can last up to half an hour.
_____________________________________________________
Moonquakes, which can last up to half an hour, are much
_____________________________________________________
weaker than Earthquakes.

PRACTICE

4

Combine the two sentences into one, using a non-defining relative clause.

3. Mars has mountains and canyons on its surface. It is a rocky
planet like Earth.
Mars, which is a rocky planet like Earth, has mountains and
_____________________________________________________
canyons on its surface.
_____________________________________________________
4. Venus is considered the twin sister of Earth. Venus has a similar
size and structure as Earth.
_____________________________________________________
Venus, which has a similar size and structure as Earth, is
_____________________________________________________
considered the twin sister of Earth.

PRACTICE

4

Combine the two sentences into one, using a non-defining relative clause.

5. We should protect rivers and lakes. Rivers and lakes provide
humans with their main sources of fresh water.
_____________________________________________________
We should protect rivers and lakes, which provide humans with
their
_____________________________________________________
main sources of fresh water.

PRODUCTION

5 Work in two groups. Take turns to say aloud one of the places in the

table. The other group explains or gives more information about it. The
team that has the most correct sentences wins.

- Work independently and prepare for your performance.
- Take turns to say aloud one of the places (the Nile, Pacific
Ocean, Viet Nam, the Sahara, Mount Fansipan) and the other
explains or gives more information about the places.
Example:

The Nile

The Nile, which is the
longest river, flows into
the Mediterranean Sea.

PRODUCTION
PLACE

FEATURE

FEATURE

The Nile

longest river

flows into the Mediterranean Sea

Pacific Ocean

covers 30% of
planet surface

largest ocean

Viet Nam

has the shape
of letter S

has a long coastline

The Sahara

largest desert

has almost no rainfall

Mount Fansipan

highest peak in
also called the 'Roof of Indochina'
Viet Nam

CONSOLIDATION

1 Wrap-up

What have we learnt in this lesson?
Use non-defining relative clauses.

CONSOLIDATION

2 Homework

- Do exercises in the workbook.

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