Unit 9. Undersea world

Friday, November 13th, 2009
Welcome to our lesson
How many ocean are there in the world?
There is only one ocean. It is divided into five parts.
Warm- up
Can you give name of the part of the Ocean?
Pacific Ocean
Atlantic Ocean
Indian Ocean
Antarctic Ocean
Arctic Ocean (Southern Ocean)
Unit 9. Undersea World
Lesson 1. Reading
Give the Vietnamese names for the Oceans on the map.
BEFORE YOU READ
Thái Bình Dương
Đại Tây Dương
Ấn Độ Dương
Nam Đại Dương
Bắc Băng Dương
Seal
Jellyfish
Shark
Turtle
NAME OF SEA ANIMAL
Vocabulary
to cover (v): bao phủ
to investigation (v): điều tra, khảo sát
to overcome (v): vượt qua
to provide sb with sth/ sth for sb: cung cấp cho ai cái gì/ cái gì cho ai
organism (v): sinh vật
to depend on/ upon sth/sb: phụ thuộc vào ai/ cái gì
to be at stake: bị lâm nguy, bị đe dọa
While you read
Task 1
The words in the box all appear in thepassage. Fill in each blank with one of them. There are more words than needed.



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 a large area of sea that is partly surrounded by land
4 ………………… is a term that refers to the existence of different kinds of animals and plants which make a balanced environment.
5. These scientists have collected different ………….. to analyze for their experiment.
gulf
oversized
biodiversity
challenges
investigate
tiny
samples
provide
tiny
investigate
gufl
Biodiversity
samples
Read the passage again and then answer the following questions.
Task 2
1. What percentage of the earth’s surface is covered by seas and oceans ?
75% of the earth’s surface
2. How do scientists now overcome the challenges of the depth ?
By using modern services?
3. What can submarines do to help scientists know about the undersea world ?
They investigate the seabed and bring samples of the marine life back to the surface for the further study
4. What can we learn from the satellite photos ?
We can know how a wide range of information, including water temperature, depth and the undersea population.
5. What are the three groups of marine plants and animals ?
They are those that live on or depend on the bottom like the starfish, those that move independently of water currents and those that are carried along by the currents
6. What would happen if the sea biodiversity were not maintained ?
The marine life would be at state if the sea biodiversity was not maintained.
Work in pairs. Complete of the summary of the reading passage by filling each blank with a word or phrase given in the box below.

After you read
three – quarters plants and animals discoveries huge closely connected
modern mysterious biodiversity
Though covering (1) ………….…… of the earth’s 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 learn that whether tiny or (6) ……..…………., Work in pairs. Complete of the summary of the reading passage by filling each blank with a word or phrase given in the box below.
all the (7)………………………….. of the sea are (8)………………..
three - quarters
mysterious
modern
discoveries
biodiversity
huge
plants and animals
closely connected
Home work
Learn by heard the vocabulary.
Do exercises on the notebook.
!