新策略大学英语听力教程第三册课后答案

Unit 5 Agriculture

Part I In-class Listening

III. Understanding Passages

Listening Task 2

1—3 CDA

Part II After-class Listening

I. Understanding Basic Skills

Listening Task

1—5 BACCD 6—10 CDADD

II. Understanding a Conversation

Listening Task

1—6 TFFTFT

III. Understanding Passages

Listening Task 1

1. Aquaculture is the production of food through the controlled growth and harvesting of plants and animals that live in water.

2. One popular environment for aquaculture is small lakes or ponds surrounded by land, away from the ocean.

3. We do so in order to keep the level of oxygen high enough for the fish.

4. The best time is in cool weather.

5. Because there is no need for costly equipment. Also, one can know ahead of time how many fish will be harvested. And bad weather does not usually affect the harvest.

Listening Task 2

1. the global food crisis

2. The United States, Brazil, Argentina

3. integrating, conventional crop technology, crop biotechnology applications

4. increased yield, drought-tolerance, salt-tolerance, enhanced nutrition or other beneficial traits

5. widespread concerns on its health, environmental and socio-economic impact

Unit 6 IT Industry

Part I In-class Listening

III. Understanding Passages

Listening Task 2

1. The intelligent transportation system would enable traffic lights to change automatically according to traffic flows and also help drivers avoid traffic congestions by sending messages about road conditions and suggesting driving routes.

2. About 2,15

3.

3. The Internet of Things, or the sensor web, is a network of real-world objects linked by the Internet and interacting through web services.

4. The Internet of Things will enable new forms of communication between people and things, and between things themselves.

Part II After-class Listening

I. Understanding Basic Skills

Listening Task

1—5 BADDA 6—10 DBBCD

II. Understanding a Conversation

Listening Task

1—4 FTTF

III. Understanding Passages

Listening Task 1

1. No. 1 Amazon No. 2 Apple No. 3 Facebook No. 4 Google No. 48 Microsoft

2. social networking sites, 400 million, continually adding new features to provide users with a better user experience

Listening Task 2

1. He wants to show that the Internet is now more accessible than ever before.

2. The online retailers.

3. Because the economic crisis reminds people that newer technology, lower operating costs, and higher efficiency are crucial for a business, and Internet based businesses, which have such advantages, are likely to flourish.

Unit 7 Automobile

Part I In-class Listening

I. Understanding Basic Skills

Listening Task 1

1. the first

2. environmental policies

3. 5

4. also, what’s more, besides, also

III. Understanding Passages

Listening Task 2

1—4 CBDC

Part II After-class Listening

I. Understanding Basic Skills

Listening Task

1. find the idea, appealing and attractive

2. to be learned, to be understood, to be developed, to be truly a pleasure

3. where housing is less expensive, in which their children can play

4. is often a major expense in the family budget

5. dominates the life-styles of those who live there

II. Understanding a Conversation

Listening Task

1. 27,000 miles

2. sales tax

3. fool around

4. we give an unconditional warranty for six months

5. He’s a good mechanic, and used car dealers are not known for their honesty.

III. Understanding Passages

Listening Task 1

1—3 DBD

Listening Task 2

1—4 FFTT

Unit 8 Space Technology

Part I In-class Listening

II. Understanding a Conversation