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tropical

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tropical

太阳转向,回归线的→热带的

[ˈtrɑpɪkəl]
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  • TPO词频:46 地理学 阅读词汇 听力词汇 核心词 高频词

    tropical

    常考释义

    • adj.热带的
    托福常考例句

    Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.

    许多富集植物被发现于热带和亚热带,金属可以为植物提供保护,对抗植食昆虫和细菌病原体。

    来源于:阅读TPO5 P1
单词详解
  • 英汉双解
  • 同反义词
    • adj. 热带的;有热带特性的【地理】

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      简明例句

      They discussed a plan to preserve the world's tropical forests.

      他们讨论了一个保护世界热带森林的计划。

      Doctors back home may be unfamiliar with the symptoms of tropical diseases.

      国内的医生也许不熟悉这些热带疾病的症状。

      展开更多
      情景例句

      And our first stop is tropical snack island.

      我们的第一站是热带零食小岛。

      来自《家有正太 第2季第10集》

      图片源自网络

      展开更多
      托福考试例句

      Many are found in tropical and subtropical areas of the world, where accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.

      许多富集植物被发现于热带和亚热带,金属可以为植物提供保护,对抗植食昆虫和细菌病原体。

      来源于:阅读TPO5 P1

      I mean, you wouldn’t call it a tropical paradise or anything, uh…or maybe you would if you think about how today in some parts of the Sahara it…it only rains about once a century.

      我是说,你不会叫它“热带天堂”或什么的。嗯,如果你想想在撒哈拉的有些地方今天是什么样子你也可能会这么叫,撒哈拉的有些地方一个世纪才下一场雨。

      来源于:听力TPO6 L6

      Proxy temperature records have been reconstructed from ice core drilled out of the central Greenland ice cap, calcite shells embedded in layered lake sediments in Western Europe, ocean floor sediment cores from the tropical Atlantic Ocean, ice cores from Peruvian glaciers, and ice cores from eastern Antarctica.

      替代性温度指标已被重建:格陵兰冰帽中部钻取的冰核,西欧深嵌在分层湖底沉积物中的方解石壳,取自热带大西洋的海底沉积物核,取自秘鲁冰河的冰核,以及取自东南极洲的冰核。

      来源于:阅读TPO10 P2

      If one focuses on the wet months, one calls the Maya homeland a "seasonal tropical forest"; if one focuses on the dry months, one could instead describe it as a "seasonal desert."  

      如果着眼于雨季,可以说玛雅遗址位于“热带季雨林”,如果着眼于旱季,那玛雅遗址就可以被称之为“季节性沙漠”了。

      来源于:阅读TPO14 P2

      But the Maya homeland lies more than sixteen hundred kilometers from the equator, at latitudes 17 to 22 degrees north, in a habitat termed a "seasonal tropical forest."  

      但是玛雅遗址位于北纬17°到22°,距离赤道1600公里以上,也就是通常所说的“热带季雨林”地区。

      来源于:阅读TPO14 P2

      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多雨地区,气候常年潮湿。

      来源于:阅读TPO14 P2

      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洲地区的古玛雅人,以及他们所面对的生态困境,我们必须先研究他们生活的环境,也就是今天我们所谓的“丛林”或者“热带雨林”。

      来源于:阅读TPO14 P2

      We’ve gone over where coral reefs are usually formed – along the edges of shallow ocean banks in tropical or subtropical regions, and the fact that they are declining at an alarming rate.

      我们已经重温了珊瑚礁通常在哪里形成——沿着热带或者亚热带地区的浅海岸边,以及它们正以惊人的速度锐减。

      来源于:听力TPO27 L2

      We’ve been talking about the decline of coral reefs in tropical areas all over the world…um… how natural and man-made stresses are causing them to degrade, and in some cases, to die.

      我们讨论了在世界各地热带地区珊瑚礁的数量的下降,额…大自然和人为压力是怎么使他们退化的,在有些情况下,死掉。

      来源于:听力TPO31 L5

      They concentrated their studies on a thirteen-hectare tract of tropical dry forest that contained numerous nests of nine species of stingless bees.

      他们把他们的研究集中于13热带干燥森林公顷的土地,这块地上包括多个九种无刺的蜜蜂的巢穴。

      来源于:阅读TPO32 P3

      Stingless bees are abundant in tropical and subtropical environments, where they gather nectar and pollen from a wide variety of flowers.

      无刺蜜蜂广泛分布于热带和亚热带环境,他们在此地收集多种花蜜和花粉。

      来源于:阅读TPO32 P3

      They studied competition and nest spacing in populations of stingless bees in tropical dry forests in Costa Rica.

      他们研究竞争和CR热带干旱深林的无刺蜜蜂的人口巢穴间隔。

      来源于:阅读TPO32 P3

      I mean, think of…say, tropical or temperate marine environments, which have incredibly diverse fish populations.

      我的意思是,想想热带或者温带的海洋环境,哪里有着非常丰富种类的鱼群。

      来源于:听力TPO33 L5

      Structure is essentially the architecture of vegetation, and as in the case of tropical forests, it can be extremely complicated. 

      结构基本上是植被的架构,对于热带森林来说,结构是非常复杂的。

      来源于:阅读TPO40 P2

      This leads to a complex structure in the layers of plant material In a tropical rain forest, for example, a very large quantity of plant material builds up above the surface of the ground.

      这就导致了一个复杂的植物体层级结构。例如,在一个热带雨林中,有大量的植物体生长在地面之上。

      来源于:阅读TPO40 P2

      In time, this organization became a state, and knowledge of its functioning was exportable, as were pottery, tropical bird feathers, specialized stone materials, and other local commodities.

      后来,这个组织发展成为一个国家,这种运作模式便可以输出了,当地的陶器、热带鸟的羽毛、专业的石材和其他本地物品也同样可以往外输送了。

      来源于:阅读TPO41 P3

      It is interesting that temperate seagrass beds accumulate sediments from sources outside the beds, whereas tropical seagrass beds derive most of their sediments from within.

      有趣的是,温带海草床通常会沉淀外来物,而热带海草床的沉积物通常来自海草床内部。

      来源于:阅读TPO44 P3

      Indeed, they have been called the marine version of the tropical rain forest, rivaling their terrestrial counterparts in both richness of species and biological productivity.

      事实上,它们被称为海洋版的热带雨林,在物种丰富度和生物生产力方面可以与真正的热带雨林媲美。

      来源于:阅读TPO47 P3

      They do best when the relative humidity in their nest is above 96 percent and the temperature is fairly high, an optimum of about 79°F for temperate zone species and about 86°F for tropical species.

      对白蚁来说最适合生存的蚁穴相对湿度在96%以上,温度也要比较高,温带最适合白蚁的温度是79°F,热带约为86°F。

      来源于:阅读TPO47 P2

      The Saharan herders who moved southward to escape drought were almost certainly also cultivating sorghum, millet; and other tropical rainfall crops.

      撒哈拉沙漠地区为了躲避干旱而向南迁移的牧民,几乎肯定的是他们也在种植高粱、小米和其他热带降雨作物。

      来源于:阅读TPO52 P3

      Also, cycads (a type of tropical plant that resembles a palm tree) produce special aboveground roots that harbor nitrogen-fixing cyanobacteria.

      而且,铁树(一种类似于棕榈树的热带植物)长出特殊的地上根,其中含有固氮藻青菌。

      来源于:阅读TPO53 P2

      Evidence for this conclusion is that nutrient systems are more open in the richest tropical soils and tightest in the poorest soils.

      这一结论的证据是,营养系统在热带土壤最丰富的地区更为开放,在最贫瘠的土壤中更为紧密。

      来源于:阅读TPO53 P2

      Closed nutrient systems have evolved in response to the leaching effects of heavy tropical rainfall.

      封闭的营养系统发展,以应对热带降雨的严重浸出效应。

      来源于:阅读TPO53 P2

      Consequently, tropical rain forests typically have what are known as closed nutrient systems, in which minerals are handed off from one organism to another with little leaking through to the soil.

      因此,热带雨林通常具有所谓的封闭营养系统,其中矿物质从一个生物体转移到另一个生物体,几乎没有渗漏到土壤中。

      来源于:阅读TPO53 P2

      Many tropical rain forest plants (like those in other forests) have mycorrhizal (fungus-root) partners whose delicate hyphae spread through great volumes of soil, from which they release and absorb minerals and ferry them back to the host plant in exchange for needed organic compounds.

      许多热带雨林植物(像其他森林中的那些植物一样)具有菌根(真菌根)伴侣,其精细菌丝通过大量土壤扩散,从中释放和吸收矿物质并将它们运送回宿主植物以换取所需的有机物化合物。

      来源于:阅读TPO53 P2

      In contrast to grasslands, where a large proportion of plant biomass is produced underground, that of tropical forests is nearly all aboveground.

      与地下生产大量植物生物的草地相比,热带森林几乎全部在地上。

      来源于:阅读TPO53 P2

      Given such poor soils, how can lush tropical forests exist?

      鉴于土壤如此贫瘠,那郁郁葱葱的热带森林是如何存在的?

      来源于:阅读TPO53 P2

      Because the concentration of dark-colored organic materials is low in tropical soils, they are often colored red or yellow by the presence of iron, aluminum: and manganese oxides; when dry, these soils become rock hard.

      由于热带土壤中深色有机物质的浓度较低,因此在铁、铝和锰氧化物的存在下,它们通常呈现红色或黄色; 干燥时,这些土壤变硬。

      来源于:阅读TPO53 P2

      Because organic compounds help loosen compact clay soils, hold water, and bind mineral nutrients, the relative lack of organic materials in tropical soils is deleterious to plants.

      由于有机化合物有助于松散粘土土壤,保持水分,结合矿物质营养,热带土壤中有机物质的相对缺乏对植物是有害的。

      来源于:阅读TPO53 P2

      High moisture and temperatures speed the growth of soil microbes that decompose organic compounds, so tropical soils typically contain far lower amounts of organic materials (humus) than do other forest or grassland soils.

      高湿度和高温加速了分解有机化合物的土壤微生物的生长,因此热带土壤的有机物质(腐殖质)的含量通常比其他森林或草地土壤低得多。

      来源于:阅读TPO53 P2

      Aluminum is the dominant cation (positively charged ion) present in tropical soils; but plants do not require this element, and it is moderately toxic to a wide range of plants.

      铝是热带土壤中主要的阳离子(带正电的离子), 但植物不需要这种元素,并且对很多植物都有中等毒性。

      来源于:阅读TPO53 P2

      Tropical forest soils also often contain particular types of clays that, unlike the mineral-binding clays of temperate forest soils, do not bind mineral ions well.

      热带森林土壤通常也含有特殊的粘土,与温带森林土壤的矿物结合粘土不同,它们不能很好地结合矿物离子。

      来源于:阅读TPO53 P2

      Because of rain leaching, most tropical rain forest soils have low to very low mineral nutrient content, in dramatic contrast to mineral-rich grassland soils.

      由于雨水浸出,大多数热带雨林土壤的矿物质含量都很低,与富含矿物质的草地土壤形成鲜明对比。

      来源于:阅读TPO53 P2

      On viewing the lush plant growth of a tropical rain forest, most people would conclude that the soil beneath it is rich in nutrients.

      在观赏热带雨林郁郁葱葱的植物生长时,大多数人会认为它下面的土壤营养丰富。

      来源于:阅读TPO53 P2
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  • 同义词

    adj.南北回归线之间的;热带地区的;

    反义词

    adj. 冰冻的; 寒冷的;

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