Unit 9. Deserts

WELCOME TO DAI MO HIGH SCHOOL
Teacher: Pham Quoc Khanh
GRADE 12
Fill in each blank with one suitable word from the box.
1. The desert was named …..... a famous writer.
2. A …….. is a low hill of sand formed by a wind in a desert.
3. You can see hummock grasses on the ……. of dunes
in the Simpson Desert.
4. Spenifex grows in the ……….… between dunes and on the more stable slopes.
5. The great Victoria Desert ………….. to the North of Nullabor.
crest
dune
desert
stretches
after
corridors
UNIT 9
Deserts
C. LISTENING
Ask and answer the following questions.
1. What is a desert?
2. How is a desert formed?
3. Can human beings make a desert?
Why/ Why not?
* Vocabulary
1. cool (a)  cool (v)
2. canal (n)
[kə`næl]
3. needle (n)
[`ni:dl]
4. colony (n)
[`kɔləni]
5. firewood (n)
[`faiəwud]
6. edge (n)
[edʒ]
7. petroleum (n)
[pə`trouliəm]
kênh, sông đào
Kim, lá kim
Thuộc địa
Củi
Rìa, cạnh
làm cho mát, nguội
Dầu lửa
Rub out & remember
canal
needle
colony
firewood
edge
petroleum
kênh, sông đào
Kim, lá kim
Thuộc, địa
Củi
Rìa, cạnh
Dầu lửa
Listen & repeat.
Frightening speed
Australia
Sahara
Firewood
Petroleum
Mauritania
Task1. Listen to the talk then decide the following statements true (T) or false (F)?
T F




1. In a desert, everything is hard.
2. Only trees with hard needles can grow in desert.
3. Space seems to have no limit in the desert.
4.Nature causes the change in the size and location of the world’s desert.
5.Rabbits are one of the agents that help make
deserts in Australia.

Task2. Answer the following questions.
1. What central theme does the talk examine?
2. What is a desert?
3. What causes the growing of the world’s deserts?
4. In what way do rabbits contribute to the growing of deserts in Australia?
Lucky numbers
Task2. Answer the following questions.
1. What central theme does the talk examine?
2. What is a desert?
3. What causes the growing of the world’s deserts?
4. In what way do rabbits contribute to the growing of
deserts in Australia?
It examines deserts, what they are and how they are formed.
It is a hot, dry, sandy place. It is also a beautiful land of
silence and space. The sun shines, the wind blows, and
time and space seem endless.
Nature and humans.
They contribute by eating every plant they can find.
This makes the land become desert.
Task3. Fill in the missing word(s)
In the developing countries, (1) …………… of the people use wood for cooking and heat. They cut down trees for firewood. But trees are important. They cool the land under them and keep the sun off (2) ………………… When leaves fall from a tree, they make the land richer. When trees are gone, the small plants die and the land becomes desert.
Humans can make deserts, but humans can also (3)….…… their growth. Algeria planted a green wall of trees across the edge of the Sahara to stop the desert and sand from (4) …………… Mauritania planted a similar wall around its (5) ……… Iran puts a thin covering of petroleum on sandy areas and plant trees. Other countries build long (6) ……… to bring water to the desert areas.
90 percent
smaller plants
prevent
spreading
capital
canals
At home: Summarize the main ideas of the expert’s Talk. Use the following suggestions:
 What is desert?
 What causes the growth of a desert?
 What should humans do to prevent the
growth of deserts?
Summarize the main ideas of the expert’s talk.
Prepare writing lesson
HOMEWORK
Thanks for your attention
You are unlucky!
:2
You’ve just lost half of your points!
What central theme does the talk examine?
A. It examines deserts, what they are and how they are formed.
B. It examines plants and animals.
C. It examines sand in deserts.
D. B & C are correct.
A
10
X 2
Lucky number!
What is a desert?
A. It is a hot, dry, sandy place.
B. It is also a beautiful land of silence and space.
C. The sun shines, the wind blows, and time and space seem endless.
D. A, B, and C are correct.
D
15
What causes the growing of the world’s deserts?
C. Nature and humans.
B. Nature.
D. Humans.
A. Sand.
C
10
In what way do rabbits contribute to the growing of deserts in Australia?
B. They contribute by eating every plant they can find.
This makes the land become desert.
A. They contribute by cutting every plant they can find.
D. They destroy every plant they can find.
C. They contribute by planting every plant they can find.
B
20