托福核心单词

　　Ecological 生态的；生态学的

　　原文：To understand the ancient Mayan people who lived in the area that is today southern Mexico and Central America and the ecological difficulties they faced， one must first consider their environment， which we think of as "jungle" or "tropical rainforest." 为了了解生活在今天南墨西哥和中美中地区的古玛雅人种以及他们所面对的生态困境，那么我们必须先研究他们的环境，也就是今天我们所谓的“丛林”或者“热带雨林”。

　　强化记忆：

　　All these measures have played active roles in improving China’s ecological environment. 这些措施对于改善中国生态环境起到了积极作用。

　　We risk upsetting the ecological balance of the area. 我们有可能会破坏这个地区的生态平衡。

　　Jungle 丛林；密林

　　原文：To understand the ancient Mayan people who lived in the area that is today southern Mexico and Central America and the ecological difficulties they faced， one must first consider their environment， which we think of as "jungle" or "tropical rainforest." 为了了解生活在今天南墨西哥和中美中地区的古玛雅人种以及他们所面对的生态困境，那么我们必须先研究他们的环境，也就是今天我们所谓的“丛林”或者“热带雨林”。

　　强化记忆：

　　The area was covered in dense jungle. 这个地区丛林密布。

　　Our soldiers lay in ambush in the jungle for the enemy. 我方战士埋伏在丛林中等待敌人。

　　Tropical 热带的

　　原文：To understand the ancient Mayan people who lived in the area that is today southern Mexico and Central America and the ecological difficulties they faced， one must first consider their environment， which we think of as "jungle" or "tropical rainforest." 为了了解生活在今天南墨西哥和中美中地区的古玛雅人种以及他们所面对的生态困境，那么我们必须先研究他们的环境，也就是今天我们所谓的“丛林”或者“热带雨林”。

　　强化记忆：

　　You must grow these tropical flowers in a greenhouse. 你必须把这些热带花卉种在温室里。

　　Tropical fruits， such as bananas and pineapples 热带水果，如香蕉和菠萝

　　Equatorial 赤道的；近赤道的

　　原文：Properly speaking， tropical rainforests grow in high-rainfall equatorial areas that remain wet or humid all year round. 严格意义上讲，热带雨林生长在赤道附近常年保持潮湿的多雨地区。

　　强化记忆：

　　We flew south through the equatorial night. 我们穿过赤道的夜空向南飞行。

　　Plants from equatorial regions have large， thin sparsely hairy leaves. 在赤道地区其植物叶片大而薄。

　　Longitude 经度

　　The city is at longitude 33°east. 这个城市位于东经33度。

　　All places on the same meridian have the same longitude. 在同一子午线上的地方都有相同的经度。

　　Peninsula 半岛

　　原文：From north to south in the Yucatan Peninsula， where the Maya lived， rainfall ranges from 18 to 100 inches (457 to 2，540 millimeters) per year. 玛雅人所居住的尤卡坦半岛从南向北的年降水量是从18英寸到100英寸(457到2540毫米)逐级递增的。

　　强化记忆：

　　The Arab live on the Arabian Peninsula.阿拉伯人居住在阿拉伯半岛上。

　　Korean peninsula lies to the west of Japan. 朝鲜半岛在日本以西。

　　Presumably 大概；推测起来

　　原文：The ancient Maya were presumably more experienced and did better， but nevertheless they too must have faced risks of crop failures from droughts and hurricanes. 古玛雅人也许更有经验也做得更好，但是不管怎么说他们都必须面对旱灾和飓风而导致的颗粒无收的风险。

　　强化记忆：

　　Presumably she had been changed on to a later shift. 想必她改值了夜班。

　　Presumably this is where the accident happened. 这大概就是事故现场。

　　Drought 干旱；缺乏

　　原文：The ancient Maya were presumably more experienced and did better， but nevertheless they too must have faced risks of crop failures from droughts and hurricanes. 古玛雅人也许更有经验也做得更好，但是不管怎么说他们都必须面对旱灾和飓风而导致的颗粒无收的风险。

　　强化记忆：

　　Hundreds of sheep perished that year because of drought. 那年由于干旱，几百头羊突然死去。

　　The ground is as hard as stone after the drought. 长期干旱后土地硬得就像石头一样。

　　Hurricane 飓风；暴风

　　原文：The ancient Maya were presumably more experienced and did better， but nevertheless they too must have faced risks of crop failures from droughts and hurricanes. 古玛雅人也许更有经验也做得更好，但是不管怎么说他们都必须面对旱灾和飓风而导致的颗粒无收的风险。

　　强化记忆：

　　The radio alerted the citizens to prepare for the hurricane. 电台警告市民们作好预防暴风准备。

　　The hurricane is blowing broken glass about in the city streets. 狂风把碎玻璃刮得到处横飞。

　　Paradoxically 矛盾地；反常地

　　原文：Although southern Maya areas received more rainfall than northern areas， problems of water were paradoxically more severe in the wet south. 尽管玛雅故地的南部比之北部有更多的降雨，但是在潮湿的南方，水资源问题的矛盾性要更加尖锐。

　　强化记忆：

　　Paradoxically， the success has also been frustrating. 可是很矛盾地，这项成功却也令人沮丧。

　　Paradoxically， the thorniest outstanding issue involves Bolivia. 而荒唐可笑的是，最棘手的国家要事却牵涉到了玻利维亚。

　　Underlie 在…..之下；成为...的基础

　　原文：The likely explanation is that an area of underground freshwater underlies the Yucatan Peninsula. 一种可能季节是尤卡坦半岛的地下水资源的区域是倾斜的。

　　强化记忆：

　　Shale underlie coal. 页岩层在煤层之下。

　　Technology improvements underlie these trends. 科技进步将成为此发展趋势的基础。

　　Sinkhole 排水口；污水池

　　原文：In the northern peninsula the elevation is sufficiently low that the ancient Maya were able to reach the water table at deep sinkholes called cenotes， or at deep caves. 较低高度的北方地区玛雅人能挖到的含水层的深层排水口，叫做“cenote”，或者叫深层含水层。

　　强化记忆：

　　To a geologist， this is a simple limestone sinkhole. 对地质学者来说，这只是简易的石灰石污水池。

　　The sinkhole was caused by rains and an underground sewage flow. 这个塌方的污水池是由于雨水和地下污水流动造成的。

　　Elevation 提高；提升；海拔

　　原文：In the northern peninsula the elevation is sufficiently low that the ancient Maya were able to reach the water table at deep sinkholes called cenotes， or at deep caves. 较低高度的北方地区玛雅人能挖到的含水层的深层排水口，叫做“cenote”，或者叫深层含水层。

　　强化记忆：

　　His elevation to the rank of a lord has made him very proud. 他被提升贵族头衔使他非常自豪。

　　The city is at an elevation of 2000 meters. 这座城市海拔2000米。

　　Karst 岩溶；喀斯特

　　原文：But much of the south lies too high above the water table for cenotes or wells to reach down to it. Making matters worse， most of the Yucatan Peninsula consists of karst， a porous sponge-like limestone terrain where rain runs straight into the ground and where little or no surface water remains available. 更要命的是，尤卡坦半岛是由水浊石灰岩构成的，一种多孔海绵型就石灰岩地域，当雨水来临时水会笔直的流入地底并不在地表留下任何水分。

　　强化记忆：

　　There are karst caves in Guilin. 桂林有溶洞。

　　The forth route is for the karst landscape. 第四条路线是喀斯特景观游。