Part I Getting ready
A.
B. Keys:
1: International Union for the Conservation of Nature,
United Nations, wildlife, policies
2: Convention on International Trade in Endangered Species,
trade, animals and plants, 1975, prohibits, 8000, controls,
30000
3: United Nations Environmental Program,
leadership, environment, quality of life
4: World Wide Fund for Nature(formerly World Wildlife Fund) ,
1961, Sahara Desert, North America & most of Europe,
top soil blowing away
C. Keys:
1: 2 2: 4 3: 5 4: 1,6 5: 3
Questions:
1: They work to conserve natural areas that contain endangered wildlife
2: They are campaigning to provide sea sanctuaries for some of these endangered species.Protected-nesting sites for turtles have been set up
3: It refers to the places of safety in the sea where sea animals are protected and allowed to live freely
Part II Christmas bird counts
A. Keys:
1: Jan. 3rd 2: more than 40 000 volunteers 3: 1 600 4: a 15 mile diameter
5: an American artist 6: their natural habitats 7: the late 1800s
B. Keys:
1: start 2: sponsored 3: outside counting birds 4: experienced bird watchers
5: anyone that is interested or concerned 6: scheduled 7: 10 people taking part
8: 15 mile diameter circle 9: the total bird populations 10: the number of birds
11: the longest-running bird census 12: undefined
Part III Dolphin captivity
A.
B. Keys:
1: 1 2: 3 3: 4 4: 5 5: 2
6: Dolphins should be kept in captivity.
7: There are educational benefits of keeping marine mammals in captivity.
C. Keys:
1: stress (family-oriented) 2: sonar bouncing off
3: average age of death; life getting better for captive dolphins
4: natural behabior patterns-altered
5: suffering from fractured skulls, ribs or jaws
6: can't learn from animals in the wild how they operate, breed, what they need, etc.
Part IV More about the topic: Birds----A Source of Wealth
Keys:
1： 9300 2： Habitat 3： warmer climates 4： 300 different species
5： colder climates 6： habitat alteration 7： esthetic value 8： Birds' population
Part V Do you know…?
Keys:
1: one and one-half million 2: 20 times
3: 100 4: 40000 5: 65 million
6: 3500 7: 2 million square miles 8: 3%
9: 200 animal species 10: 1000
11: a third 12: two-thirds 13: three-quarters下载本文
