Unit 5 Revealing Nature Using language 课件-2022-2023学年高中英语外研版（2019）选择性必修第一册

Biodiversity Activity 5 Listen to the podcast and choose the statements that are made. 1 Biodiversity is important. 2 Bacteria are always harmful to humans. 3 Some species of bacteria are used in food production. 4 Many species of bacteria recycle dead organic matter. 5 Our immune systems are able to fight off all germs. be harmful to对...有害 fight off 击退 Activity 6 Listen again and complete the fact sheet. thirty trillion thirty-nine trillion made up of cells bricks that are used to build houses help with digestion break down Using language 听力原文 4 Using language 5 Do you know about......? Have you heard of ......? Activity 7 Complete the boxes with the expressions from the podcast. By the way...... Actually...... In fact,...... Speaking of which,… Checking background knowledge Adding information What species are mentioned and what is special about them? Two species are mentioned: the blue whale and the water bear. The blue whale is the largest animal species on Earth, which can grow up to almost 30 metres in length and weigh over 130,000 kilos. The water bear is probably the toughest species, which can survive temperatures from 150ºC to a below freezing -272ºC. Activity 8 Read the passage and answer the questions The Galapagos Islands are renowned worldwide for their unique biodiversity. The Giant Tortoise Reserve on Santa Cruz 1_________ several species of giant tortoise that 2__________ the Galapagos Islands. The island is also home to the Charles Darwin Research Station, where 3____________ studies are carried out. is home to are native to scientific Complete the paragraphs with the correct form of the words and expressions in the box. ancestor scientific be native to primitive habitat appearance be home to ecosystem Mangroves are one of the coastal plants that grow on Isabela. They serve as the 4________________ for various birds and fish, and are very important to the 5________________. habitats ecosystem 10 Iguanas can be found on San