寫作是新托?？荚囁捻椫邢鄬碚f比較好容易得分的一項，但是事實證明大部分考生并不能考出滿意的成績，究其原因應該是綜合寫作失分嚴重，和出國留學網(wǎng)小編一起來看看托福寫作話題之生態(tài)類。
生態(tài)類話題真題
在TPO 的題目中，最具有代表性的生態(tài)類話題分布在TPO 14，TPO 18，TPO 20，TPO 21，TPO 23 和TPO 26，它們分別研究的是：樹木回收性砍伐的好處、佛羅里達榧樹的保護、大火給森林帶來的損害、轉基因樹的好處、雪松數(shù)量減少、斑馬貝的入侵。例如（閱讀--- 聽力）：
TPO 14：回收性砍伐的好處
1. make room for the growth of the new trees---deprive the soil of the nutrients produced during the process of decomposition
2. minimize the danger of insect infestation---some insects are great contributors to the health of the forest
3. provide usable wood by industries and create additional jobs for local people---transportation of these woods is expensive and the jobs provided are temporary
TPO 18：佛羅里達榧樹減少的解決方案
tablish Torreya in the same location
with the coolest and dampest microclimate---the microclimate is strongly influenced by either global warming or the drained wetlands
Torreya to an entirely different location---Torreya will threaten other rendangered species
erve Torreya in research center---the research center can not ensure a large and genetically-diverse population of the Torreyatrees， which means the trees are not capableof resisting the disease
TPO 20：Let it burn policy 帶來的危害
1. damage the trees as well as the vegetation---there appears to be a biggerdiversity for the plants
g negative effects to the wildlife---small animals like the rabbits and hares are more likely to inhabit in the ideal place
harm to the local tourism， negatively contributing to the economy---only if it happens every year would it be a problem for tourism
從上面的考察點結合閱讀與聽力的內(nèi)容，我們給考生們總結了生態(tài)類話題的考點設置：
從單詞的層面上
物種名稱詞匯（ 植物）：plant / cedar / plankton / Terroya tree / wild berry / organism / black locust tree
物種名稱詞匯（動物）：wildlife / insect / beetle / bear / mussel / hare / rabbit / shellfish
涉及棲息地詞匯：habitat / dwell / inhabit / habitat / bottom / wetland
生物鏈涉及詞匯：food chain / plankton eater/ predator / parasite / disease / infestation / infest / pest-resistant / resist / dominate / reproduce / germinate / nutrient
關于物種入侵：wipe out / crowd out / be aggressive / invade / invasion / colonize / compete for
表示物種數(shù)量的下降：decline / descend / shrink / extinct / endangered / minimize / devastate / destroy
科學技術層面的單詞：genetic modification / genetictechnology / genetically –diverse / geneticallymodified / uniform / gene / pesticide
常出現(xiàn)在綜合寫作閱讀和聽力部分的考點
生物減少原因：
Environment： temperature / climate change / global warming
Technology： genetically-modified plants /pest-unresistant / uniform in genes
Invasion： compete for nutrient/ infestation / parasite / predator
生物保護方法：
Environment： temperature / climate change / relocation
Technology： research center
防止生物擴散的方法：
Biological introduction： predator
Human activities： capture （financially beneficial） / chemical control （poison / pesticide）
以上的總結并不能完全對應目前新托福綜合寫作的生態(tài)話題考點，更要注意一些新的考點，尤其是TPO 套題中所沒有涉及的。