瀕臨滅絕的動(dòng)物英語(yǔ)ppt課件

1、12Do you like animals?Have a look34What do you think?They are really lovely!But unfortunately, they are all endangered animal. 5The twelve most endangered animal species 古巴鱷（Cuban crocodile）佛羅里達(dá)戴帽蝙蝠佛羅里達(dá)戴帽蝙蝠 (Florida bonneted bat) 6綠眼蛙綠眼蛙（Green Frog）格林納達(dá)鴿格林納達(dá)鴿 （Grenada dove ）7亨氏羚羊亨氏羚羊 (Heinz antelope

2、)犁頭龜犁頭龜 (Ploughshare tortoise)8蘇門答臘猩猩蘇門答臘猩猩 (Sumatran Orangutan)島嶼灰狐島嶼灰狐 (Urocyon littoralis )9 白頭葉猴白頭葉猴 White headed leaf monkey小頭鼠海豚小頭鼠海豚 Phocoena sinus Norris10普氏野馬普氏野馬(Equus przewalskii ) 羅默小樹(shù)蛙羅默小樹(shù)蛙 (Luo s tree frog)11There are over 5000Vertebrate(脊椎動(dòng)物）脊椎動(dòng)物） animals are threatened or endangered.

3、 Many things can cause animals to become threatened or endangered;Most problems are caused by12Following are some major PROBLEMS:First Problems: habitat loss Habitat is the ecosystem(生態(tài)系統(tǒng)）生態(tài)系統(tǒng)） of animals, they need to live in proper place, such as swamp, rain forest, desert, etc. Human replace the

4、animal habitats ,it could cause an extensive loss of ranges for animals.13Second Problem: pollution Commercial and industrial operations can reduce land and pollute environment. Air pollution Water pollution14Third Factor: predation or illegal killing Predation makes animals become endangered is ove

5、r-fishing or over-hunting.15Forth Factor: introduction animal Many rarity animals are introduced by people to areas where they never existed before. The introduction of a non-native species to a habitat may make animals become endangered. 許多稀有的動(dòng)物被人們引進(jìn)到他們從未生存過(guò)的地方，引進(jìn)一個(gè)非本地物種到一個(gè)棲息許多稀有的動(dòng)物被人們引進(jìn)到他們從未生存過(guò)的地方

6、，引進(jìn)一個(gè)非本地物種到一個(gè)棲息地可能使動(dòng)物瀕臨滅絕。地可能使動(dòng)物瀕臨滅絕。16Fifth Factor: disease Introduced animals bring new diseases with them, becomes another reason of why are animals endangered. The native animals cant resistance（抵抗）（抵抗） to non-native diseases. Another cause of disease is chemicals. Some chemicals direct effect on some animals population.17Whats your feeling now? Do you want these lovely animals live?We have to know that when animals become endangered, the entire food chain can be affected.These five major PR