I. Before you read
1) Look at the map and give the Vietnamese names for the oceans on the map.
(1)
(2)
(3)
(4)
(5)
Thái Bình Dương
Đại Tây Dương
ấn Độ Dương
Bắc Băng Dương
Nam Băng Dương
I. Before you read
2) Match the animals with their names
(1)
(2)
(3)
(4)
a. Jelly fish
c. Seal
b. Shark
d. Turtle
I. Before you read
I. Before you read
II) While you read
Ex: The mountain is very high. It challenges mountain climbers
New words:
1. challenge( n+v):
(sự) thử thách, thách thức
2. mystery(n):
Điều bí ẩn, huyền bí
mysterious(a):
3. submarine(n):
Tàu ngầm
EX: The death of Princess Diana is still a mystery
4. Investigate(v):
II) While you read
New words:
Điều tra, nghiên cứu
Ex: The police are investigating the robbery.
5. sample(n): real object: mẫu vật, vật thể
6. organism(n): Plants and animals:
7. biodiversity(n): sự đa dạng sinh học
8. be at stake:
be in danger: bị nguy hiểm, đe doạ
Ex: This kind of animals is in danger
sinh vật
1. challenge( n+v):
(sự) thử thách, thách thức
2. mystery(n):
Điều bí ẩn, huyền bí
mysterious(a):
3. submarine(n):
Tàu ngầm
4. Investigate(v):
Điều tra, nghiên cứu
5. sample(n): real object: mẫu vật, vật thể
6. organism(n): Plants and animals:
sinh vật
7. biodiversity(n): sự đa dạng sinh học
8. be at stake:
be in danger: bị nguy hiểm, đe doạ
New words
II) While you read
Task 1: Fill in the blanks(There are more words than needed)
Gulf
Investigate
oversized
tiny
biodiversity
samples
challenges
provide
1. Some plants and animals are referred to as_______ organisms because they are extremely small.
2. Thanks to modern technology, scientists have been able to ________ the life of plants and animals that live under the sea.
3. A________ is the large area of sea that is party surrounded by land.
4. _________ is a term that refers to the existence of different kind of animals and plants which make a balanced environment.
5. These scientists have collected different_________ to analyse for their experiment.
Task 2: Answer these questions:
1. What the percentage of the earth?s surface is covered by seas and oceans?
2. How do scientists now overcome the challenges of the depth?
3. What can submarine do to help scientists know about the undersea world?
4. What can we learn from the satellite photos?
5. What are three groups of marine plants and animals?
6. What would happen if the sea biodiversity were not maintained?
II) While you read
1. What the percentage of the earth?s surface is covered by seas and oceans?
II) While you read
They now overcome the challenges of the depth by using modern devices.
2. How do scientists now overcome the challenges of the depth?
Seas and oceans cover 75% percent of the earth?s surface.
3. What can submarines do to help scientists know about the undersea world?
II) While you read
4. What can we learn from the satellite photos?
We can know a wide range of information, including water temperature, depth and the undersea populations.
Submarine helps scientists investigate the seabed and bring samples of marine life back to the surface for further study.
5. What are three groups of marine plants and animals?
II) While you read
6. What would happen if the sea biodiversity were not maintained?
Three groups of marine plants are: some of them live on or depend on the bottom, some move independently of water currents and some are carried along by the currents.
if the sea biodiversity were not maintained, marine life would be at stake.

III. After you read
Complete the summary by filling each blank with a word or phrase.
biodiversity
Plants and animals
discoveries
huge
closely connected
modern
mysterious
three- quarters
Though covering(1)________ of the earth?s of the surface, the ocean has remained (2)__________ to us until recently. With (3)________ technology we have now made important (4)________ about the (5) _________ of marine life. We have learnt that whether tiny or (6)________, all the (7)________ of the sea are (8)_______
Thank you for your attendance!