英语泛读教程4Unit7Ecology课件

1、Unit 7 Ecology1wilderness2wilderness3Leopard4a buffalo being hunted down by two lions 5Zebra6Baboon7Hippos8Gorilla9To study Ecology involvesnon-living (abiotic)ClimatologyHydrologyOceanographyPhysicsChemistryGeologysoil analysisliving (biotic) animal behavior Taxonomy Physiology mathematics10 Ecolog

2、y is the study of the interactions between organisms and their environment. The environment is a combination of the physical environment (temperature, water availability, etc.) and any influences on an organism exerted by other organisms-the biotic environment.11 Ecology Ecology is study of interact

3、ions between non-living components in the environmentlight waterwindnutrients in soilheatsolar radiationatmosphere, 12Living organismsPlantsAnimalsmicroorganisms in soil, etc.13Ecologyviews each locale as an integrated whole of interdependent parts that function as a unit.tundracaribou14The interdep

4、endent parts are151. Nonlivingdead organic matternutrients in the soil and water. 2. Producers green plants163. Consumers herbivores and carnivores4. Decomposersfungi and bacteria 17ECOLOGY: Levels of Organization- a hierarchy of organization in the environment18Levels of organization - Terms1. Bios

5、phereSurface of the earth Composed of many ecosystems2. EcosystemLarge or small as we decide19Levels of organization - Terms3. Population one species live in one place at one time4. Community All populations (diff. species) that live in a particular area.20Levels of organization - Terms4. Habitat ph

6、ysical location of community5. Organism simplest level of organization21Very complexCan contain 100s to 1000s of interacting species.22THENEcology is an integrated and dynamic study of the environment.23Arrange the following living things in order to form a food chain and explain their relationship.

7、 The Sun, Plants, Herbivores and Carnivores. 241. The sun is the original source of energy, in the form of light, for the food chain.2. Plants capture about 1% of the available light energy from the sun for carbohydrates production by way of photosynthesis. 3. Herbivores consume about 10% of the pla

8、nt produced in a typical food chain.4. Carnivores consume about 10% of the energy stored by the herbivores.25What happens when one organisms in the food chain carries disease? 2. What happens when one organism in the food chain dies or disappears? For example, in the picture of the rabbits and wolf;

9、 if the grass dries up and disappears, how will this affect the food chain? 3. What happens when forests decrease?26VIDEO27 1.C daunt: to abate the courage of sb. 2.B imminent: close in time; about to occur 3.A pronounced: easily noticeable 4.B analogue: something having the property of being analog

10、ous to something else 类似物28 5.A attest:provide evidence for 6.C extant: still in existence; not extinct or destroyed or lost 7.C procure: get by special effort 29 8.A stalk: follow stealthily or recur constantly and spontaneously to e.g Her ex-boyfriend stalked her. 9.A detriment: a damage or loss t

11、o the detriment of 有害于，对有害 10.B dissipate:to cause to separate and go in different directions 30Sustainable Development31Definition Sustainable development (SD) is a pattern of resource use, that aims to meet human needs while preserving the environment so that these needs can be met not only in the present, but also for generations to come. 32 The field of sustainable development can be conceptually broken into three constituent parts: environmental sustain