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今日主題:Habitat Loss a Real Buzzkill for Invertebrates
無脊椎動物棲息地的喪失!

洪欣老師推薦:托福聽力最好的課外教材:60-Second Science
康康精選托福會考的主題,堅持每天精聽一定會進步的哦!!

 建議方法:
1. 先聽兩三遍 (不看文稿)
2. 再一句一句聽寫 (每句都要聽寫數遍,直到寫出85%以上的字)
3. 最後check文稿,看哪聽不出來,單字沒背過,還是發音不熟。
4. 堅持天天聽,就能每天進步哦。

MP3音檔 (按右鍵可下載聽):喜歡的同學,幫忙推或按讚哦~~
http://online1.tingclass.net/voaspe/…/20140907sa_science.mp3

只有音檔怎夠,聽不懂地方,不用怕,康康幫你準備好中英文稿了:

中英文稿:
Based on the sheer number of ants that have invaded my home this summer, it seems hard to believe. But a new study finds that the number of invertebrates—which include any animal without a spine—has fallen by nearly half over the past 35 years—the same period of time in which the human population has doubled. The estimate appears in the journal Science. [Rodolfo Dirzo et al: Defaunation in the Anthropocene]
今年夏天,拜訪我家的螞蟻的數量(太少了),真是令人難以置信。但是一項新的研究發現,在過去35年中,無脊椎動物的數量少了將近一半,而這一期間,人類的數量卻翻了一番。該研究被發表在《科學》雜誌上。

When we think of extinction, we usually picture large, charismatic creatures, like the saber-toothed tiger, the wooly mammoth or the even the dodo bird. Over the past 500 years, more than 300 species of vertebrates like these have disappeared. You can find more 60-Second Science on chinavoa.com.
當我們想到「滅絕」時,通常都是會想到那些體型較大,那些具有超凡魅力的生物,像劍齒虎、毛茸茸的猛獁象或者是渡渡鳥。在過去的500年中,已經有300多種脊椎動物從地球上消失。

But what about critters that fly…or crawl…under our radar? Butterflies, beetles, spiders, slugs and worms are all in the midst of decline. Much of that die-off is due to habitat loss. In the U.K., for example, scientists have recorded a 30 to 60 percent decrease in areas inhabited by common insects, including bees and wasps.
但是我們日常可看到的小飛行生物……爬行動物又如何?蝴蝶、蜜蜂、蜘蛛、蛞蝓和蟲子的數量都在減少。這些物種中的大多數是由於棲息地的喪失而消亡。例如在英國,科學家已經記錄的蜜蜂和黃蜂等常見昆蟲居住地的昆蟲數量,就減少了30%-60%.

While fewer flying pests might seem a plus, insects also perform functions that are key to human survival, like pollinating crops and recycling nutrients. So crowding out our invertebrate allies could turn out to be a real buzzkill.
—Karen Hopkin
雖然有少量的飛行害蟲數量似乎仍在增加,昆蟲仍然在人類生存方面起著重要作用。例如農作物授粉和回收營養。所以排擠我們的無脊椎動物盟友可能真會成為令人掃興的事。——凱倫‧霍普金

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