Uni 12 LIFE ON OTHER PLANETS
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LESSON 5: SKILLS 1

1
Uni
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READING

SPEAKING

WARM UP

1 Work in pairs. Discuss the following questions.
1. What do you know about other planets?
2. Would you like to live on another planet? Why / Why not?

PRESENTATION

liquid (n)
/ˈlɪk.wɪd/
chất lỏng

PRESENTATION

temperature (n)
 /ˈtem.pɚ.ə.tʃɚ/
nhiệt độ

PRESENTATION

atmosphere (n)
/ˈæt.mə.sfɪr/
không khí

: air

PRESENTATION

gravity (n)
/ˈɡrævəti/
trọng lực, lực hút
trái đất

PRESENTATION

habitable (adj
/ˈhæbɪtəbl/
có thể ở được, phù
hợp để ở

:
providing conditions that
)
are good enough to live in
or on

PRESENTATION

promising (adj)
/ˈprɒmɪsɪŋ/
đầy hứa hẹn, triển
vọng

: signs that it is going to
be successful or
enjoyable.

PRESENTATION

trace (n)
/treɪs/
dấu hiệu, dấu vết,
vết tích

:a sign that something
has happened or existed

PRESENTATION
New words

Pronunciation

Meaning

/ˈlɪk.wɪd/

chất lỏng

2 temperature (n)

/ˈtem.pɚ.ə.tʃɚ/

nhiệt độ

3. atmosphere (n)

/ˈæt.mə.sfɪr/

không khí

4. gravity (n)

/ˈɡrævəti/

trọng lực, lực hút trái
đất.

5. habitable (adj)

/ˈhæbɪtəbl/

có thể ở được, phù hợp
để ở.

6. promising (adj)

/ˈprɒmɪsɪŋ/

đầy hứa hẹn, triển vọng

/treɪs/

dấu hiệu, dấu vết, vết
tích

1. liquid (n)

7. trace (n)

2

Read the text and match the highlighted words in the text with their
meanings.

Nowadays humans are still wondering what planets in outer space might
support life.
Scientists say planets need to meet three main conditions to support life.
Firstly, they must have liquid water, so their temperature must not be too
high or too low. Secondly, the planets need to have the correct amount of
air so that they can hold an atmosphere around. Finally, their size is also
important. If a planet is too small, its gravity is not strong enough to hold
an enough amount of air. If it is too big, its gravity will be so strong that it
will hold too much air.
Scientists are using space telescopes to find habitable planets. According to
them, Mars is one of the most promising planets for life in our solar
system. It is a planet like Earth. Its days last for 24.5 hours and its seasons
are similar to Earth's. Although scientists have not found actual water on
Mars, there seems to be traces of it on the planet's surface. However, the
climate on Mars is unsuitable for human life because it is too cold and Mars
lacks oxygen to support human life.

READING

2

Read the text and match the highlighted words in the text with their
meanings.

1. liquid

a. suitable for people to live in

2. gravity

b. marks, objects, or signs that
show that somebody or
something existed

3. habitable

4.promising d. the force that causes
something to fall to the
ground
5.traces

e. showing signs of being
good or successful

c. in the form of a substance
that flows freely and is not a
solid or a gas

1. c 2. d 3. a

4. e

5. b

READING

3

Read the text again and answer the following questions

1. What are humans still wondering nowadays?

They are still wondering what planets in outer space might support life.

2. Why does a habitable planet need to have the correct amount of air?

It needs to have the correct amount of air to hold an atmosphere around
it.

3. What happens if a planet is too small?

Its gravity is not strong enough to hold an enough amount of air.

4. How long does a day on Mars last?

Its day lasts for 24.5 hours.

5. Why can we not live on Mars?

Because it is too cold and lacks oxygen.

SPEAKING
Work in pairs.Tick (√) the boxes to show what conditions a planet needs to
4 support
human life.

1. There must be enough liquid water on the planet.
2. The planet must have craters on its surface.
3. The planet must hold an atmosphere.
4. The planet must have at least two moons.
5. The planet must have enough oxygen in the air.

SPEAKING

4 Can you add other conditions for a habitable planet?

Some ideas:

– The planet must experience at least two seasons.
– The planet's temperature of the planet must be suitable for humans
to live on it.
– There must be enough sources of energy on the planet.
– The planet must be a comfortable distance away from a star.
– The planet must rotate on its axis and revolve.
– The planet must hold an atmosphere.
– The stars around the planet must be stable.
– The planet must have carbon that is found in all living things.

SPEAKING
in groups. Take turns to talk about the conditions you think are
5 Work
required for a planet to support human life. Use the information in 4 and
your own ideas.

Example: There are some conditions planets must have to
support human life on them. First, the most important
condition is that ...

SPEAKING
in groups. Take turns to talk about the conditions you think are
5 Work
required for a planet to support human life. Use the information in 4 and
your own ideas.

Example:
There are some conditions planets must have to support
human life on them. First, the most important
condition is that there must be enough liquid water on the
planet. Second, the planet must hold an atmosphere. And the
planet must have enough oxygen in the air for people to
survive...

CONSOLIDATION

1 Wrap-up
What have we learnt in this lesson?
 Read for specific information about the possibility of life on
other planets.
 Talk about the conditions needed for planets to support human
life.

CONSOLIDATION

2

Homework

Do exercise in workbook

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