1. TO OUR CLASS!!!

2. Sea Can you list some things related to the sea or the ocean? sea fish
water
ship
turtle
Sea
lobster
shark
coral
dolphin
…… etc……..

3. PART A: READING
UNIT 9:
UNDERSEA WORLD

4. I.BEFORE YOU READ:
Work with a partner: Look at the map and give the Vietnamese names for the oceans on the map:
Bắc Băng Dương
Đại Tây Dương
Ấn Độ
Dương
Thái Bình
Dương
Nam Băng Dương

5. J……………… S…………….. T…………….. S……………..
Work with a partner: Look at the pictures below. Can you name the sea animal in each picture? The first letter of the word has been given to help you.
J………………
elly fish
S……………..
eal
T……………..
urtle
S……………..
hark

6. VOCABULARY:
Gulf /gʌlf/ (n): Vịnh

7. Submarine (n): Tàu ngầm
/ˈsʌbməri:n/

8. Shark /ʃɑːk/ (n): Cá mập
Starfish /ˈstɑː.fɪʃ/ (n): Sao biển
Shark /ʃɑːk/ (n): Cá mập

9. Investigate /ɪnˈves.tɪ.geɪt/ (v): Khảo sát
E.g: They are investigating the sea-bed.

10. Samples /ˈsɑːm.pl/ (n) : Mẫu vật
Biodiversity /ˌbaɪəʊdaɪˈvɜ:səti / (n) : Sự đa dạng sinh học

11. Oversized /ˈəʊvəsaɪzd/ (adj): Quá cỡ
Tiny /ˈtaɪ.ni/ (adj.): Tí hon

12. Challenge /ˈtʃæl.ɪndʒ/ (v): Thách thức
Eg: The problem of pollution challenges the scientists.
Challenge (n)
Organism /ˈɔ:ɡənɪzəm/ (n) cơ thể, sinh vật

13. Contribute /ˈkɒn.trɪ.bjuːt/ (v) góp phần, đóng góp
Eg: Plants and animals of the sea contribute to its biodiversity.
Contribute to sth.
Contribution (n)
Be at stake /steɪk/ (v) đang lâm nguy, đang bị đe dọa
Eg: The family honour is at stake.

14. 13. Be at stake /steɪk/ (v) đang lâm nguy, đang bị đe dọa
Gulf /gʌlf/ (n): Vịnh
Submarine /ˈsʌbməri:n/ (n): Tàu ngầm
Starfish /ˈstɑː.fɪʃ/ (n): Sao biển
Shark /ʃɑːk/ (n): Cá mập
Investigate /ɪnˈves.tɪ.geɪt/ (n): Khảo sát, điều tra
Biodiversity /ˌbaɪəʊdaɪˈvɜ:səti / (n) :Sự đa dạng sinh học
Sample /ˈsɑːm.pl/ (n): Mẫu vật
Oversized /ˈəʊvəsaɪzd/ (adj): Quá cỡ
Tiny /ˈtaɪ.ni/ (adj): Tí hon
Challenge /ˈtʃæl.ɪndʒ/ (n): sự thử thách
Challenge (v): Thử thách
11. Organism /ˈɔ:ɡənɪzəm/ (n): Cơ thể, sinh vật
12. Contribute /ˈkɒn.trɪ.bjuːt/ to (v): góp phần, đóng góp
13. Be at stake /steɪk/ (v) đang lâm nguy, đang bị đe dọa

15. There is only one ocean. It is divided into five different parts: the Pacific, Atlantic, Indian, Antarctic, and Arctic Oceans. There are also many other smaller seas, gulfs and bays which form part of them. Altogether they cover 75 percent of the earth’s surface. For centuries, people have been challenged by the mysteries that lie beneath the ocean. However, today’s scientists have overcome many of the challenges of the depth by using modern devices. They send submarines to investigate the seabed and bring samples of marine life back to the surface for further study. Satellite photographs provide a wide range of information, including water temperature, depth and the undersea populations. If modern technology did not exist, we would never have such precious information.
Marine plants and animals fall into three major groups. Some of them live on or depend on the bottom like the starfish. Some are swimming animals such as fishes and sharks that move independently of water currents while others are tiny organisms that are carried along by the currents like the jellyfish. Plants and animals of the sea, however small or oversized, all contribute to its biodiversity . Unless this biodiversity were maintained, marine life would be at stake.

16. II. WHILE YOU READ
TASK 1
The words in the box all appear in the passage. Fill each blank with one of them. There are more words than needed:

17. gulf
oversized
biodiversity
challenges
seal
samples
investigate
turtle
provide
tiny
Some plants and animal are referred to as organisms because they are extremely small.
2. Thanks to modern technology, scientists have been able to the life plants and animal that live under the sea.
3. A sea animal that eats fish and lives around coasts is a
4. A is a large area of sea that is partly surrounded by land.
is a term that refers to the existence of different kind of animal and plants which makes a balanced environment.
6. These scientists have collected different to analyze for their experiment.
7. A is a large reptile with a hard round shell, that lives in the sea.

18. Read the passage again and answer the questions below:
Task 2:
Read the passage again and answer the questions below:

19. What percentage of the earth’s surface is covered by seas and oceans?
 75% of the earth’s surface is covered by the seas and oceans.
2. How do scientists now overcome the challenges of the depth?
 By using modern devices.
3. What can submarines do to help scientists know about the undersea world?
 They help them to investigate the seabed and bring samples of the marine life back to the surface for further study.
4. What can we learn from the satellite photos?
 We can know 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 current.
6. What would happen if the sea biodiversity were not maintained?
 The marine life would be at stake if the sea biodiversity was not maintained.

20. III. After you read: Work in pairs:
Complete the summary of the reading passage by filling each blank with a word or phrase given in the box below.

21. 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 the marine life. We have learnt that whether tiny or (6) , all the (7) of the sea are (8)
three-quarters
Plants and animals
Discoveries
Huge
Closely connected
Modern
Three-quarters
Mysterious
Biodiversity
mysterious
modern
discoveries
biodiversity
huge
plants and animals
closely
connected

22. HOMEWORK Learn by heart new words. Review the content of tasks.
Prepare for the next lesson, part B. SPEAKING