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课件网) Human activities cause increasing harm to animals endangered animals be endangered be close to extinction Tibetan antelope whale South China tiger When you think of a fearsome hunter, images of lions and sharks may spring to mind, Recent research by environmental scientists, however, shows that in fact, humans are the most fearsome hunters who have the greatest impact on animal populations, Human activities have brought many animals close to extinction. In the last 500 years, over 300 species of animals have gone extinct. Some activities,such as hunting and fishing, directly harm animals, while other activities, such as development in towns and cities, impact indirectly on animal populations. Hunting and fishing have directly influenced the world's animal populations.Some people hunt animals for food: whale meat is eaten in some parts of the world. Some people hunt animals for fashion: animal skin is used to make coats and bags. Still others hunt animals just for fun: deer are tracked and shot by people who enjoy the excitement of the sport. Human activities that have indirect effects on animals can be just as harmful.When we build farms or factories, we destroy animal habitats and leave many animals with nowhere to live, or no food to eat, We can also put animals in danger without ever entering their habitats. Air, water, noise and light pollution can all have a deep and damaging influence quite far from their source. Partly due to pollution caused by ship traffic and other human activities, the dolphin population has dropped greatly. As the human population continues to grow, so does the effectwe have on animals. Figure out the main idea of each paragraph. Para. 1 Para. 2 Para. 3 Humans are the most fearsome hunters who have the greatest impact on animal populations. Hunting and fishing have directly influenced the world’s animal populations. Human activities have indirect effects on animals. Human activities have brought many animals close to extinction. Impacts on animals due to human activities. Direct Due to building farms or factories, animals’ habitats are destroyed. Air, water, noise and light pollution can all have an impact. Indirect For food For fashion For fun ① ② ③ ⑦ ④ ⑤ ⑥ ⑧ ⑨ Fill in the mind map. (3)As the human population continues to grow, so does the effect we have on animals. (2)When we build farms or factories, we destroy animal habitats and leave many animals with nowhere to live, or no food to eat. Find sentences describing harms done to animals. (1)Human activities have brought many animals close to extinction. Jim has found a video about protecting animals. Watch the video and complete the questions in part B1 on page 9. 1.What happened to several whale species in the last century They were hunted near to extinction. 2. What can protected areas ensure They can ensure water and food supplies are safe. 3. What causes the loss of animal habitats in t ... ...
