Unit 9. Undersea world

Welcome to 10A1
Unit : 9
undersea world


A. Reading
How many oceans are there in the world?
There is only one ocean with 5 parts.
Can you name the parts of the ocean?
Atlantic Ocean
Indian Ocean
Pacific Ocean
Arctic Ocean
Southern Ocean (Antarctic Ocean)
* Look at the map and give the Vietnamese names for the oceans on the map





Can you name the sea animal in each picture? The first letter of the word has been given to help you.
Can you name the sea animal in each picture? The first letter of the word has been given to help you.


S……………… J……………..... T………………. S………………



Can you name the sea animal in each picture? The first letter of the word has been given to help you.



Seal


Can you name the sea animal in each picture? The first letter of the word has been given to help you.


Seal Jellyfish

Can you name the sea animal in each picture? The first letter of the word has been given to help you

Seal Jellyfish Turtle

Can you name the sea animal in each picture? The first letter of the word has been given to help you

Seal Jellyfish Turtle Shark

* Read the text and do the tasks that follow.
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 were maintained,marine life would be at stake.

Task 1. The words in the box all appear in the passage. Fill in each blank with one of them. There are more words than needed.

Some plants and animals are referred to as ………..........…… organisms because they are extremely small.
Thanks to modern technology, scientists have been able to …..……. the life of plants and animals that live under the sea.
A ………….. Is a large area of sea that is partly surrounded by land
……………… is a term that refers to the existence of different kinds of animals and plants which make a balanced environment.
These scientists have collected different …………………… to analyze for their experiment.
Gulf oversized biodiversity challenges
Investigate tiny samples provide
Task 1. The words in the box all appear in the passage. Fill in each blank with one of them. There are more words than needed.


Some plants and animals are referred to as ………tiny….… organisms because they are extremely small.
Thanks to modern technology, scientists have been able to …investigate…. the life of plants and animals that live under the sea.
A …gulf….. is a large area of sea that is partly surrounded by land
……Biodiversity… is a term that refers to the existence of different kinds of animals and plants which make a balanced environment.
These scientists have collected different ………samples…… to analyze for their experiment.

Gulf oversized biodiversity challenges
Investigate tiny samples provide
Task 2. Read the passage again and then answer the following questions.
What percentage of the earth’s surface is covered by seas and oceans ?
How do scientists now overcome the challenges of the depth ?
What can submarines do to help scientists know about the undersea world ?
What can we learn from the satellite photos ?
What are the three groups of marine plants and animals ?
What would happen if the sea biodiversity were not maintained ?

Task 2. Answer the questions
75% of the earth’s surface.
By using modern devices.
They investigate the seabed and bring samples of marine life back to the surface for further study.
We can know a wide range of information, including water temperature, depth and the undersea populations.
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.
Marine life would be at stake if the sea biodiversity were 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.

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) ……..…………., all the
(7)………………… of the sea are (8)…………….……… .
plants and animals discoveries huge closely connected
modern three – quarters mysterious biodiversity
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.


Though covering (1) …… three – quarters.…… of the
earth’s surface, the ocean has remained (2) … mysterious
… to us until recently. With (3) …… modern …..technology
we have now made important (4) …… discoveries …...
about the (5) …… biodiversity … of marine life. We have
learn that whether tiny or (6) …… huge ……., all the (7)…
plants and animals … of the sea are (8)…… closely
connected … .

plants and animals discoveries huge closely connected
modern three – quarters mysterious biodiversity

Homework :

Learn by heard the vocabulary.
Do exercises in the workbook.
Prepare the next lesson : B. Speaking




Good bye!
Have a good time!