1、Unit 2Part I Getting readyA.B. Keys:1: International Union for the Conservation of Nature, United Nations, wildlife, policies2: Convention on International Trade in Endangered Species,trade, animals and plants, 1975, prohibits, 8000, controls,300003: United Nations Environmental Program,leadership,
2、environment, quality of life4: World Wide Fund for Nature(formerly World Wildlife Fund) ,1961, Sahara Desert, North America life getting better for captive dolphins4: natural behabior patterns-altered 5: suffering from fractured skulls, ribs or jaws6: cant learn from animals in the wild how they ope
3、rate, breed, what they need, etc.Part IV More about the topic: Birds-A Source of WealthKeys:1： 9300 2： Habitat 3： warmer climates 4： 300 different species5： colder climates 6： habitat alteration 7： esthetic value 8： Birds populationPart V Do you know?Keys:1: one and one-half million 2: 20 times3: 100 4: 40000 5: 65 million6: 3500 7: 2 million square miles 8: 3%9: 200 animal species 10: 100011: a third 12: two-thirds 13: three-quarters
