Read the sentence pairs. Choose which word or phrase best fits each blank.

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4. Read the sentence pairs. Choose which word or phrase best fits each blank.

1 enclosure system / сage system

A A(n)       _______________ uses the coastline or other natural barriers.

В A(n) ______________ uses nets or other synthetic materials on all sides.

2 open-ocean / submersible

A Some ________________ cages sink all the way to the floor of the ocean.

В Storms sometimes make _____________ aquaculture difficult.

3 aquaculture / disease

A One problem with breeding fish in close quarters is the possibility of _____________.

В __________________ provides a significant percentage of the seafood eaten worldwide.

5. Listen and read the letter again. Why is interbreeding between farmed and wild fish sometimes dangerous?

Listening

6. Listen to a conversation between an owner and a manager. Mark the following statements as true (T) or false (F).

1 __ The woman wants to invest in

aquaculture research.

2 __ The company currently uses

pond systems.

3 __ The man will report on the

risk of disease.

7. Listen again and complete the conversation.

Owner: We realty 1 ________ __________ increase production this year Demand is up. What do you think we should do to bring our numbers up?

Manager: Well, we could diversify into 2 ________ __________ of aquaculture.

Owner: What do you mean?

Manager: Currently, most of our fish are bred in a pond system. But we could also 3 ________ ____________into recirculation systems.

Owner: Aren't those expensive?

Manager: The start-up cost would be high. But I think 4 ________ ________ make the money back.

Owner: Are there 5 _______ _________ options?

Manager: Our plants 6 ______ _________ __________ could open some enclosure system facilities.

Speaking

8 With a partner, act out the roles below based on Task 7. Then, switch roles.

USE LANGUAGE SUCH AS:

We really need to ...

What do you think ...?

We could ...

Student A: You are an owner. Talk to Student В about:

· the company’s needs

· new options for aquaculture

· risks and benefits of those options

Student B: You are a manager. Talk to Student A about options for aquaculture.

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