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UNIT : UNDERSEA WORLD

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READING: Before you read

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Vocabulary1. Gulf /glf/ (n): Vnh 2. Submarine /sbmri:n/ (n): Tu ngm 3. Starfish /st.f/ (n): Sao bin 4. Investigate /nves.t.get/ (n): Kho st, iu tra 5. Biodiversity /badav:sti / (n) :S a dng sinh hc 6. Sample /sm.pl/ (n): Mu vt 7. Oversized /vsazd/ (adj): Qu c 8. Tiny /ta.ni/ (adj): T hon9. Challenge /tl.nd/ (n): s th thch Challenge (v): Th thch 10. Organism /:nzm/ (n): C th, sinh vt

11. Contribute /kn.tr.bjut/ to (v): gp phn, ng gp 12. Be at stake /stek/ (v) ang lm nguy, ang b e da

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While you read

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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 andbays which form part of them. Altogether they cover 75 percent of the earths surface.For centuries, people have been challenged by the mysteries that lie beneath theocean. However, todays scientists have overcome many of the challenges of the depthby using modern devices. They send submarines to investigate the seabed and bring

samples of marine life back to the surface for further study. Satellite photographsprovide a wide range of information, including water temperature, depth and theundersea populations. If modern technology did not exist, we would never have suchprecious information.

Marine plants and animals fall into three major groups. Some of them live on or dependon the bottom like the starfish. Some are swimming animals such as fishes and sharksthat move independently of water currents while others are tiny organisms that arecarried along by the currents like the jellyfish. Plants and animals of the sea, howeversmall or oversized, all contribute to its biodiversity . Unless this biodiversity weremaintained, marine life would be at stake.

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After you read

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LISTENING: Before you listen

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Listen and repeat

MamalBlue whale

Whaling

AtlanticMigratePacific

Conservation

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LISTENING: While you listen

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LISTENING: While you listen

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Task 2: Listen again and then answer the following questions

1. What is the length and weight of the blue whale?

2. Why do whales like to feed in the cold oceans?

3. According to the listening passage, what are the good feeding grounds forwhales?

4. What is the main reason for the decrease in the whale populations?

5. What have conservation groups asked the International WhalingCommission to do?

6. What would happen if we didnt take any measures to protect whales?

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LISTENING: While you listen

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Task 2: Listen again and then answer the following questions

1. What is the length and weight of the blue whale?The blue whale grows to 30 meters in length and over 200 tonsin weight.

2. Why do whales like to feed in the cold oceans?Because there is a lot of krill in the cold oceans.

3. According to the listening passage, what are the good feeding grounds forwhales?The good feeding grounds for whales are cold water in the Northand South Atlantic Ocean and the North and South PacificOcean.

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LISTENING: While you listen

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Task 2: Listen again and then answer the following questions

4. What is the main reason for the decrease in the whale populations?Heavy hunting is the main reason for the decrease in the whalepopulations

5. What have conservation groups asked the International WhalingCommission to do?Conservation groups have asked the International Whaling

Commission to stop most whaling.6. What would happen if we didnt take any measures to protect whales?

If we didnt take any measures to protect whales they woulddisappear forever.

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LANGUAGE FOCUS

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Pronunciation

/ / /e / / /here pair sure

clear square usualidea upstairs casual

atmosphere carefully actually

Listen and repeat

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LANGUAGE FOCUS

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Pronunciation

Listen and repeat

Pr acti ce th ese sentences:

1. Lets have some b eer, dear.2. What a good idea! The atmosphere here is very clear.

3. Wh ere are my shoes? They are nowh ere here.4. Have you look c are fully everywh ere ?5. I am s ure he is far from p oor.6. Well, act ua lly he usually w ea rs cas ua l clothes.

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LANGUAGE FOCUS

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Conditional sentence type 2

Form:If Clause Main Clause

If S + V (2/-ed), S + would + V Usage:

Showing unreal conditions (present time)

Ex: If I were a bird, I would be a white dove.If I did more exercise, I would pass the exam.

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