Unit 9. Undersea world

Unit 9. Undersea world tài liệu, giáo án, bài giảng , luận văn, luận án, đồ án, bài tập lớn về tất cả các lĩnh vực kinh...

Seal Jellyfish

Shark Turtle

Southern Ocean( Antarctic Ocean)

3 beneath (prep) [bi'ni:θ]

sinh vật

bị đe doạ

cuộc sống dưới biển dòng nước

sinh vật

bị đe doạ

Read the passage and do the task 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 may 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

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

gulf oversized biodiversity challenges

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 party 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 analyse for

READ THE PASSAGE AGAIN THEN ANSWER

THE FOLLOWING QUESTIONS

2 How do scientists now overcome the

challenges of the depth?

1 What percentage of the earth’s surface

is covered by seas and oceans?

3 What can submarines do to help scientists

know about the undersea world?

6 What would happen if the sea biodiversity were not maintained?

4 What can we learn from the satellite photos?

5 What are the three groups of marine

plants and animals?

Complete the summary of the reading passage by filling each blank with a word or phrase given in the box below

Despite 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 learnt that whether tiny or (6) ,all the(7)

of the sea are (8)

three-quarters

mysterious modern

discoveries biodiversity

huge plants and animals closely connected

three-quarters

mysterious

modern

plants and animals

huge closely connected

biodiversity discoveries

• Prepare Speaking lesson

How do scientists now overcome the challenges of the depth?

By using modern devices

What percentage of the earth’s surface is covered by seas and oceans?

75% of the earth’s surface

X 2

Lucky

number!

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 further

study

You are unlucky!

: 2

You’ve just lost half of your points!

What would happen if the sea

biodiversity were not maintained?

The marine life would be at stake

if the sea biodiversity were not

maintained

What can we learn from the satellite photos?

We can know a wide range of information, including water temperature, depth and the

undersea populations

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