Thus one simple fact, a change in the number of bison, had an effect on the whole wildlife chain of the plains.
因此，出現(xiàn)了這樣一個簡單的事實--野牛數(shù)目換的變化對平原的整個野生生物鏈都產(chǎn)生了影響。
高三英語課文
Unit 13 The USA
?? 句中詞匯解析
從本句中提取的重要詞匯
adj. 簡單的;單純的;易受騙的;天真的;
n. 笨蛋;愚蠢的行為;出身低微者;
?? sim(one by one)+ple(fold)→簡單的；樸素的；單純的
"her austere bedroom with its simple narrow bed"
她那僅有一張窄床的簡陋臥室
近義：uncomplicated, basic, cushy, doss, easy, facile
反義：arduous, intricate, labored, laborious, onerous, painful
n. 數(shù)字;數(shù)量;號碼;編號;
v. 標(biāo)號;總計;把…算作;
?? numer, number 表示”數(shù)字”;”計算”,”估算”
"The number of people employed in agriculture has fallen in the last decade."
過去十年，農(nóng)業(yè)從業(yè)人數(shù)已經(jīng)下降。
近義：numerate, reckon, recount, sum, tally, cipher
反義：remove, subduct, take, withdraw, deduct
n. 影響;效果;印象;所有物;
vt. 使發(fā)生;引起;產(chǎn)生（效果）;
?? ef出+fect做，制作→做出來→實施；生效；效果
"the cumulative effect of human activity on the world environment"
人類活動對世界生態(tài)環(huán)境日積月累的影響
近義：implement, make, materialize, occasion, officiate, operate
反義：motive, occasioner, origin, point, reason, root
wildlife
['wa?ldla?f]
n. 野生的鳥獸等;
adj. 野生生物的;
?? wild野生的+life生命 → 野生動植物
"to be interested in wildlife conservation"
對野生動物保護(hù)感興趣
近義：fauna
adv. 于是，因此;如此，這樣，像這樣，例如;到這程度，到這地步，這么;如下;
conj. 因此;
"Old people often try to economize on heating, thus endangering their health."
老年人常常想方設(shè)法節(jié)約用暖氣，結(jié)果損害了他們的健康。
近義：sic, so, that, this