M8 U22 Language Power学案.docx

1、Learning sheetModule 8 Unit 22 Language Power Focus on ReadingThe link between food chains and extinctionTeaching objectives:At the end of the lesson, you will be able to*integrate different subjects.*know how to guess the difficult words through the context.*learn about the food chain related to ou

2、r life.*raise awareness of the environmental protection and harmonious development.Teaching procedures:Step I Lead-in & Warm-upPlay a game: Guess who eats who?leaf, worm, bird, eagle (pictures)Step Vocabulary Guess the words (Chinese meaning): producer_At the beginning of the natural food chain are

3、plants which turn sunlight into energy and draw nutrients from the earth. herbivore_plant-eating animals;fish;insectseat grass and plants carnivore_eat meat,animals and even human beings omnivore_eat seed, plant, insect, fruit, meat, peanut, egg, leaf and so on. consumer_herbivore + carnivore + omni

4、vore decomposer_After animals and plants die，they become food for other small creatures, which turned the dead bodies into minerals and become food for producers at the beginning of the food chain. Then the cycle continues. Bacteria, fungi and mushroom etc. belong to it.Step Reading Task 1: Fast Rea

5、ding (Para2)ReasonsThe destruction of the natural food chain Task 2 : Careful Reading (Para6 - Para10)1. Alien Species(Para8 & 9): People took _ and _ from their home countries and _ them wherever they went.By introducing _ they were _ thenatural _ _.If they are allowed to continue, they will_ _ all

6、 the species and population.2. Consequences(Para6 &7&10):When a food chain is _, the consequences can be extremely _.If a single plant in a chain cannot _, then the insects and the animals that eat the insects also start to _.Each plant species that is lost, up to 30 animals and insects may also _ _

7、.The loss of any more plants and animals could eventually mean our own _3. Solutions (The Authors Opinion)(Para10):With import laws and peoples rising _ of how humans_ the natural environment.We can learn to _ _ _ the natural food chains that govern our world.Step Role Play (Group Work) Group 1 Grou

8、p 2 Group 3 Group 4Step SummaryStep V Discussion （After-Class Activity）Solutions (Your Opinion)To save the endangered animals and plants, what should we do?As the government officials, we shouldAs the students, we shouldAs the animals and plants, we hopeStep Homework (Writing)According to your discussion, write an essay through the angle of students or animals to our government officials about how to deal with the destruction of our habitat and how to protect the environment._