真題：2010年1月考研英語(yǔ)試題(海文版)

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　　one basic weakness in a comservation system based wholly one economic motives is that most members of the land.community have no economic value.yet these ereatures are members of the biotic community and ,if its stability depends on its inteyrity,they are entitled to continuance。

　　When one of these noneconomic categories is threatened and,if we happen to love it .we invert excuses to give it economic importance.at the beginning of century songbiras were supposed to be disappearing。(46scinentists jumped to the resure with some distimctly shaky evidence to the effect that insects would eat us up of birds failed to control them)，the evideuce had to be conbmic in order to be valid。

　　It is pamful to read these round about accounts today .we have no land ethic yet ,(47but we have at least drawn near the point of admitting that birds should continue as a matter of intrinsic right,regardless of the presence or absence of economic advantage to us)

　　A panallel situation exists in respect of predatory mamals and fish-eating birds 。(48time was when biologists somewhat over worded the evidence that these creatures preserve the health of game by killing the physically weak,or that they prey only on “worthless species)

　　Some species of tree have been read out of the party by economics-minded foresters because they grow too slowly .or have too low a sale vale to pay as imeber crops (49in europe ,where forestry is ecologically more advanced ,the ncommercial tree species are recognized ad members of native forest community ,to be preserved as such ,within reason)

　　To sum up:a system of conservation based solely on economic self-interest is hopelessly lopsided。(50It tends to ignore, and thus eventually to eliminate, many elements in the land community that lack commercial value, but that are essential to its healthy functioning。)without the uneconomic pats。

　　2010年考研英語(yǔ)翻譯之英譯漢答案

　　46.科學(xué)家們趕緊拿出某些明顯站不住腳的證據(jù)前來(lái)救駕，大致說(shuō)的是如果鳥(niǎo)兒不能控制害蟲(chóng)的話，害蟲(chóng)就會(huì)把我們吃掉。

　　47.但是我們至少已經(jīng)幾乎承認(rèn)了這樣一種觀點(diǎn)：那就是鳥(niǎo)兒的生存是它們的固有權(quán)利，不管它對(duì)我們是否有經(jīng)濟(jì)利益。

　　48.

　　曾幾何時(shí)，生物學(xué)家總是重述以下的這條證據(jù)：這些生物是為了維持食物鏈的正常運(yùn)行去捕食弱小的生物或“沒(méi)有價(jià)值的物種”。

　　49在生態(tài)林業(yè)較為先進(jìn)的歐洲，沒(méi)有成為商業(yè)化對(duì)象的樹(shù)種被視為原始森林群落的成員適當(dāng)?shù)丶右员Ｗo(hù)。

　　50.

　　他容易忽視并最終消滅很多缺乏商業(yè)價(jià)值的物種，然而這些物種對(duì)于整個(gè)生物群落的健康運(yùn)行是至關(guān)重要的。

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