human & nature人与自然.ppt.ppt

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1、Human and Nature,2012-5-22,Long long ago.God created the earth.All things were beautiful and perfect.The sea,rivers,valleys,and fresh air.Everwhere is full of flowers and trees.Animals lived in peace without hatred.,Human and nature,One day.God created the human.Since this special day.Lovely earth b

2、egan to suffer from their destruction.Her sea and air were polluted.Automobile gas was discharged into the air.Oil and rubbish were poured into the river.They continued to dump“toxin(毒素)”murdering countless fishes.,Human and nature,Human&environment,Human&plants,Human&animals,Development&utilization

3、,Human and nature,Current situation,Humanandenvironment,Human and nature,Humanandenvironment,Human rely on the nature,Human transform the nature,Human fundamentally change the original nature,Depend on,Humanandenvironment,Conquere&deteriorate Contradiction(矛盾):limited and limitless Peoples requireme

4、nts were limitless,but environment resources were limited.The population increased dramatically,but the environments capacity is limited.,Humanandenvironment,Industrialization and modernization Environmental degradation(退化)a global phenomenon.Four life systems:forest,grassland,fishery and farmland(森

5、林、草原、渔场、农田)a severe crisis(危机).,Humanandenvironment,Bad weather,Forest damaged,Humanandenvironment,Air pollution,Humanandenvironment,Water pollution,Humanandenvironment,Severe Pollution.Will you dare to live in this city?,Humanandenvironment,Human and Plants,Human and Nature,Why are green plants ver

6、y important?What will happen follow the destruction of green vegetation?,Human and plants,Why are green plants very important?,Guarantee almost every species.Natural dust collectors.Natural health epidemic prevention.A huge muffler.Regulate climate.,Human and plants,Photosynthesis(EVERY DAY),Absorb

7、1 tons of carbon dioxide,Release 0.73 tons of oxygen,Human and plants,Guarantee almost every species,Tall poplar(杨树)can reduce the wind speed,Human and plants,Natural dust collectors,Sycamores(悬铃木)secretion(分泌物)can sterilize germ(杀菌)in 3 minutes.,Human and plants,Natural health epidemic prevention,G

8、roups of trees can absorb the acoustic wave(声波)and stop the sound.When the acoustic wave pass through,leaves fluttering would make sonic abate or disappear quickly.,Human and plants,A huge muffler,Why people say“A good tree is a good shelter(大树底下好乘凉)?”In summer,the plants can absorb a plenty of wate

9、r then evaporation(蒸发)by transpiration(蒸腾作用).,Human and plants,Regulate climate,Plants can regulate climate“A good tree is a good shelter”“A forest is a green reservoir”,Human and plants,$2 What will happen follow the destruction of green vegetation?,Human and plants,Human and plants,Human and plant

10、s,Human and plants,Human and plants,Human and plants,Defend our homelandGreening the environment!,Human and animals,Human and nature,Outline,Human and animals,The origin of human,There are three statements of human origin,Human and animals,The origin of animals,Human and animals,human and animals,Ea

11、ting:from what we eat everyday,well eat vegetables,fruits,meat,eggs,and dairy products,from animals and plants.,Human and animals,Clothing,We usually clothes without,biological whether it be a T-shirt or leather are biological organization,such as cotton,cowhide,sheep.,Human and animals,Living,Anima

12、ls have gradually become our friends,Human and animals,They are the ornamentof our life,Human and animals,The conflict,Because of human greed,animals suffered huge losses.,Human and animals,Shocking picture,Human and animals,The future of human and animal,One day animal can communicate with people,j

13、ust as what has been shown in the film“war house”and become one among us.,Human and animals,Development and utilization,Human and nature,The use of human to the animals,Human science and technology from the beginning to now have a huge change,of which many inventions inspiration comes from nature,af

14、ter a long time the animalsare evolved the ability to our scientists provide a lot of inspiration!,Development and utilization,Plane,Plane comes from bird.,Development and utilization,Submarine,Submarine was invented from whale,Development and utilization,Radar,Radar is manufacturing according to ba

15、t,Development and utilization,Human advantage of plant,From the beginning of human eat raw meat to the present rice,noodles,the whole of the process is human nature to the use of process.,Development and utilization,GrainTraditional Chinese medicine,Development and utilization,Food crops,Rice,in bot

16、any of grass is common on rice cultivated rice and the common rice of subspecies,Development and utilization,Traditional Chinese medicine,Some plant can be quite effective when taken as drug,this is traditional Chinese medicine.,Development and utilization,Development and utilization,But,our earth i

17、s being destroyed,Development and utilization,Crop capacity is increasing,however,Different pills are invented from experiment of animal,Development and utilization,Current situation,Human and nature,Water resource anddistribute,Current situation,Yellow river flow,Estuary sedimentation,Current situation,Wetlands reduce,Current situation,desertification,Earth subsidence,Current situation,Seawater invasion,Current situation,Pm 2.5,Current situation,We are in danger,Current situation,