Before you read the passage, talk about these questions

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disease

open-ocean cage sysmets

offshore

submersible

enclosure system

Aquaculture

Get ready!

1. Before you read the passage, talk about these questions

1 What are some of the benefits and risks of aquaculture?

2 What are some common types of aquaculture?

Reading

2. Read the letter. Then, choose the correct answers.

1 What is the main idea of the letter?

A there are many inexpensive methods of aquaculture

В enclosure systems are more sustainable than cage systems

С the benefits of aquaculture outweigh its risks

D aquaculture is an outdated practice that should be abandoned

2 Which of the following is NOT mentioned in the letter?

A the possibility of spreading disease through aquaculture

В the expense of recirculating and flow-through systems

С the importance of aquaculture to some economies

D government regulations that promote or restrict aquaculture

3 What does the letter writer recommend?

A investing in aquaculture research

В eliminating economic dependence on aquaculture

С developing vaccines to protect wild fish from disease

D raising money for recirculation systems

Vocabulary

3. Match the words (1-7) with the definitions (A-G).

1 __ pen     5 __ pond system

2 __ wild   6 __ recirculating system

3 __ offshore 7 __ flow-through system

4 __ interbreed

A technique that involves cleaning water

В technique that uses inland pools of water

С located away from the coastline

D not cultivated or bred by human beings

Ean enclosed system of nets

F to cross the genes of human organisms

G technique that sends water trough long tank

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