目录

  • 1 第1章 课程说明
    • 1.1 课程说明及成绩构成
    • 1.2 大学英语二级教学大纲
    • 1.3 大学英语二级教学周历
  • 2 第2章 综合教程 Unit 1 Working Holiday Abroad
    • 2.1 第一次课 (任务清单)
      • 2.1.1 File 1 音频
      • 2.1.2 File 2- Culture notes
      • 2.1.3 Test 1(章节测试)
      • 2.1.4 Test 2 (章节测试)
    • 2.2 第二次课 (任务清单)
      • 2.2.1 File 3- Language Focus
      • 2.2.2 Test 3 (章节测试)
  • 3 第3章 视听说教程 第一单元
    • 3.1 视听说 Unit1 Family 学生用材料(1)
    • 3.2 视听说 Unit 1 Family  学生材料(2)
  • 4 第4章 综合教程 Unit 3 Cultural Differences
    • 4.1 第一次课 (任务清单)
      • 4.1.1 File 1  video  viewing & listening
      • 4.1.2 File 2 Culture notes
    • 4.2 第二次课(任务清单)
      • 4.2.1 File 3 Language  Focus
      • 4.2.2 unit3 课后习题.
  • 5 第5章 视听说教程 第二单元
    • 5.1 视听说 Unit 2 Nature 学生材料(1)
    • 5.2 视听说 Unit 2 Nature 学生材料(2)
  • 6 第六章 视听说教程 第三单元
    • 6.1 视听说 Unit 3 Happiness 学生材料(1)
    • 6.2 视听说 Unit 3 Happiness 学生材料 (2)
  • 7 第7章 综合教程 Unit 2 Conspicuous consumption
    • 7.1 第一次课 (任务清单)
      • 7.1.1 File 1 音频,视频
      • 7.1.2 File 2 culture notes
    • 7.2 第二次课(任务清单)
      • 7.2.1 File 3 Language Focus
      • 7.2.2 Unit 2 章节练习
  • 8 第八章 视听说教程 第四单元
    • 8.1 视听说 Unit 4 Conservation 学生材料(1)
    • 8.2 视听说 Unit 4 Conservation 学生材料(2)
  • 9 第九章 综合教程 Unit 4 Emerging Adulthood
    • 9.1 第一次课 (任务清单)
      • 9.1.1 File 1 video viewing and listening
    • 9.2 第二次课 (任务清单)
      • 9.2.1 File 2 Language Focus
      • 9.2.2 Unit 4 章节练习
  • 10 第十章 视听说 Unit 5 Friendship
    • 10.1 视听说 Unit 5 Friendship 学生材料
  • 11 第十一章 视听说 unit 6 Fear
    • 11.1 视听说 Unit 6 Fear 学生材料
  • 12 第十二章 综合教程 Unit 5
    • 12.1 第一次课 (任务清单)
      • 12.1.1 File 1 音频,视频
      • 12.1.2 File 2 viewing & Listening
      • 12.1.3 File 3 Additional video
    • 12.2 第二次课(任务清单)
      • 12.2.1 章节练习
  • 13 第十三章 视听说教程 第七单元 Health
    • 13.1 视听说 Unit 7 Health学生材料
  • 14 第十四章 视听说教程 第八单元 Change
    • 14.1 视听说 Unit 8 Change 学生材料
视听说 Unit 4 Conservation 学生材料(1)

Book 3Unit 4 Conservation

 

Part II Listening and Speaking

Lesson A

Task1: Check(P37)

Directions: Accordingto supplemental materials, how do you understand the following questions?

 

 

Supplemental Information:

 

One  reason for the endangerment of animal species is habitat loss and destruction  due to human development, pollution, and natural changes to an environment.  The second main reason is loss of the genetic variation that keeps a species  healthy over generations. When an animal population is reduced, due to  disease or human actions such as hunting and using pesticides, it becomes  harder for that species to continue to reproduce healthy generations. The  gene pool becomes too small, and this lack of variety affects the health of a  species in a negative way

 

 

 

Language  Note

 

Animal species each have a  conservation status, which identifies their level of endangerment, or how  soon they may die off in the wild. Species in trouble are categorized as one  of the following statuses: Extinct in the Wild (only alive in captivity); Critically  Endangered (extremely likely to be extinct in the wild very soon); Endangered  (very likely to be extinct in the wild soon); Vulnerable (extremely likely to  become endangered soon); and Near Threatened (likely to become endangered  soon). A species that is no longer alive in the wild or captivity is referred  to as extinct. Some examples of animal species on the Critically Endangered  and Endangered lists include: Javan rhino, South China tiger, Sumatran  elephant, orangutan, bluefin tuna, chimpanzee, giant panda, and snow leopard

 

1.According to the supplemental information given above, why are some species endangered?

2.What can the conservation status of a certain species indicate?

3.What else do you know about the endangered species in the pictures on the previous page?

 

 

Task 2: Pair-work (P37)

Directions:  Work in pairs and makea dialogue according to the conversation sample. You can refer to the expressions given below.

 

 

Sample

 

A:  Did you know that grizzly bears are endangered?                                    

 

B: Yeah? Why are they endangered?

 

A: Mainly because of hunting by  humans and habitat loss.

 

B: How many are left?

 

A: Only about 25,000.

 

 

 

 

Reference:

 

l  Some other endangered  species

 

American  bison, Tibetan antelopes, Black rhino, Southern bluefin tuna, Beluga  Sturgeon, Alligator Snapping Turtle, Hawksbill Turtle, Green-Cheeked Parrot,  Mako Shark…

 
  • The reasons why they are dying out

 

the destruction of their habitats  because of global warming

 

consequences of human development such  as deforestation

 

pollution of their habitats

 

poaching(偷猎) for food, medicine, trade, etc.

 

consumption of animals’ body parts,  e.g. fur coats, tiger-bone wine, elephant tusks, etc.

 
  • Some expressions about numbers

 

Fewer than 6,000

 

Between 10,000 and 15,000

 

No more than 5,000

 

Not more than 80,000

 

 

 

Lesson B -Listening1

Task3: Check(P38)

  • Please try to tell us about some other conservationists you have heard about.

 

 

Lesson B -Listening 2

Task4: Check(P39)

Directions: Accordingto supplemental materials, how do you understand the following questions?

 

 

Supplemental Information:

 

One  of wildlifedirect.org’s main goals is to help conservationists raise funds  through blogging about their experiences of working to save endangered  species. The site has a long list of blogs by conservationists that visitors  to the website can browse to learn about different projects. The bloggers are  also able to use the website to raise funds for their projects. The site  provides this service free of charge to conservationist bloggers. Through the  efforts of Paula Kahumbu and her organization, conservationists across globe,  especially those working on smaller projects that don't get a lot of  publicity, are able to get connected with supporters and donors more easily

 

1.  What is the main goal of the wildlife direct.org mentioned in the supplemental information?

2.  Do you want to help endangered animals bydonating money or volunteering?

 

 

Lesson B -Listening 1&2

Task5: Group Discussion (P40)

Directions: Work in group and discuss the following question.

  • Discussa conservation problem you know about, and talk about ways you can help.

   

 

Supplemental  Information:

 

Protecting Endangered Species

 

Around  the world, habitats are being destroyed at an alarming rate, putting many  wildlife species in danger of extinction. Threatened and endangered animals  and plants are found in many places throughout the globe you may even find  some in your own backyard. To protect endangered animals and plants, think  both globally and locally. There are many things you can do to contribute to  their protection

 

To  begin with, you can find out what animals living near you are on the  endangered species list. Spend some time learning about these animals and  their habitats.

 

You  can also contribute to nature reserves and other wilderness areas. Habitat  preservation is one of the best ways to help protect endangered animals.  Donate money or volunteer your time helping the nature reserve preserve  habitat. Or, do both.

 

Another  thing you can do is buy environmentally friendly products. Choose non-toxic  cleaners that won pollute streams, rivers or oceans. Avoid any companies  that, when manufacturing products, endanger animals. Buy foods and goods that  are made from materials that do not harm endangered animals or their  habitats. For example, look for organic chocolate, coffee or cotton clothing  that is grown without cutting down rainforests.

 

 Moreover, you can help create or restore  habitats for endangered animals. You can volunteer to help with project side  designed to re-establish habitat. In your own backyard, for example, plant a  butterfly garden.

 

Individual  effort is not enough. You need to join a local, national or global  conservation organization. Through these organizations, you can perhaps  "adopt" an animal or plant a tree. The options are endless. All you  need to do is a little exploring

 

 

 
 

Reference

 

What can we do to help rhinos in Africa?

 

We can raise money to send to conservation groups.

 

Or we could make  a poster to tell people about the problem.

 
  • What  people can do to protect endangered species

 

Create reserves.

 

Raise and domesticate endangered  animals.

 

Carry out scientific research like  increasing giant pandas' mating period and sexual desire, developing cloning technology,  etc.

 

Send captured wild animals back into  their natural habitats.

 

Raise people's awareness through  media.

 

Raise young people's awareness through  school education.

 

Enact laws to protect endangered  animals and increase law enforcement (e.g. Those who sell panda skin or tiger  bones shall be imprisoned).

 

Increase international cooperation(e.  g. introducing advanced technology from abroad, and sending South China  tigers to Africa for survival training)