必修3词汇第13课单词卡片_必修3单词卡_必修3在线背单词_必修3单词卡记忆法

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exhaust [iɡˈzɔ:st]

释义：: vt. 用尽；耗尽；使精疲力尽

构词：: ex出+haust抽水→抽出→抽干

例句：: The health of our children is being endangered by exhaust fumes.
我们孩子们的健康正受到排放出的废气的损害。换一句; Exhaust fumes are bad for your health.
废气对健康有害。换一句; the exhaust fumes that are polluting our cities
污染我们城市的废气换一句

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2/20 报错

exist [iɡˈzist]

释义：: vi. 存在；生存

例句：: Does life exist on other planets?
其他行星上有生命吗？换一句; Many possible orderings may exist.
组合方式可能有许多种。换一句; There exist many sources of energy both potential and kinetic.
存在着许多势能和动能的能源. 换一句

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3/20 报错

extinct [iksˈtiŋkt]

释义：: adj. 灭绝的；绝种的

构词：: ex出+stinct火焰→灭火

例句：: Servants are now almost extinct in modern society.
在现代社会里奴仆已近乎不复存在。换一句; The extinct volcano's eruption would mean a cataclysm for the city.
死火山又重新喷发,对这座城市来说意味着大难临头. 换一句; Nothing could rekindle her extinct passion.
她激情已逝,无从心回意转. 换一句

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4/20 报错

float [fləut]

释义：: vi.&vt. 浮动；漂浮
n.漂浮物

例句：: Strange thoughts float through my mind when I am nearly asleep.
我快睡着时产生一种奇怪的念头. 换一句; When you're tired of swimming, just float for a while.
你游累了就漂浮一会儿. 换一句; When a fish bites the hook, the float bobs.
当鱼上钩时, 鱼漂上下跳动. 换一句

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fundamental [ˌfʌndəˈmentəl]

释义：: adj. 基本的；基础的

例句：: The argument is full of fundamental flaws.
这段论述充满根本性的错误。换一句; There is a fundamental difference between the two points of view.
这两个观点有根本区别。换一句; Opportunism consists of sacrificing fundamental interests in order to gain temporary, partial benefits.
机会主义就是牺牲根本的利益,贪图暂时的、局部的利益. 换一句

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gentle [ˈdʒentl]

释义：: adj. 温和的；文雅的

例句：: a quiet and gentle man
温文尔雅的男士换一句; a story full of gentle humour
充满轻松幽默的故事换一句; a gentle shampoo for frequent washing
供经常洗发用的柔性洗发剂换一句

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7/20 报错

geologist [dʒɪˈɔlədʒɪst]

释义：: n. 地质学家

构词：: geology地质[学]+ist信仰者,专家或人→geologist地质学者

例句：: The geologist found many uncovered fossils in the valley.
在那山谷里,地质学家发现了许多裸露的化石. 换一句; The geologist proves up a coal deposits.
地质学家探明了一个煤矿的藏量. 换一句; He was a geologist, rated by his cronies as the best in the business.
他是一位地质学家, 被他的老朋友们看做是这门行当中最好的一位. 换一句

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8/20 报错

global [ˈɡləubəl]

释义：: adj. 全球性的；全世界的

例句：: The commission is calling for a global ban on whaling.
委员会要求全球禁止捕鲸。换一句; a global economic monoculture
全球经济一元化社会换一句; The report takes a global view of the company's problems.
这份报告对公司的问题作了综合性的论述. 换一句

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9/20 报错

gravity [ˈɡræviti]

释义：: n. 万有引力；重力

构词：: grav重+ity表名词→n.重力,引力;严肃,庄重

例句：: Newton's law of gravity
牛顿万有引力定律换一句; He doesn't think you realize the gravity of the situation.
他认为你没意识到局势的严重性. 换一句; An apple falls down because of gravity.
由于重力的关系,苹果往下掉. 换一句

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harmful [ˈhɑ:mfəl]

释义：: adj. 有害的

例句：: prolonged exposure to harmful radiation
长时间接触有害辐射换一句; the harmful effects of alcohol
酒精的害处换一句; The drug is not harmful per se, but is dangerous when taken with alcohol.
这种药本身无害，但与酒同服就危险了。换一句

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11/20 报错

lessen [ˈlesən]

释义：: vi.&vt. 减少；减轻

例句：: The noise began to lessen.
噪音开始减弱。换一句; The flexibility of a man's muscles will lessen as he becomes old.
人老了肌肉的柔韧性将降低. 换一句; Regular exercise can help to lessen the pain.
经常运动有助于减轻痛感. 换一句

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mammal [ˈmæməl]

释义：: n. 哺乳动物

例句：: The function of a mammal's fur is to insulate the body.
哺乳动物皮毛的功能在于使身体保温. 换一句; A whale is a kind of mammal.
鲸是一种哺乳动物. 换一句; The whale is the largest mammal in creation.
鲸鱼是所有哺乳动物中最大的. 换一句

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multiply [ˈmʌltiplai]

释义：: vi.&vt. 乘；增加

构词：: multi很多,很多+ply折→折多次→乘

例句：: The children are already learning to multiply and divide.
孩子们已经开始学习乘法和除法了。换一句; Think of a number and multiply it by two.
想出一个数，然后乘以二。换一句; When animals have more food, they generally multiply faster.
动物在有较多的食物时, 一般繁殖得较快. 换一句

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nitrogen [ˈnaitrədʒən]

释义：: n. 氮

例句：: The atmosphere consist of more than 70 % of nitrogen.
大气中含有70%以上的氮气. 换一句; Every tonne of coal contains, on average, 30 kilograms of nitrogen.
每吨煤平均含30公斤氮. 换一句; The plant requires nitrogen in order to make proteins.
植物需要氮以便制造蛋白质. 换一句

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15/20 报错

now that [nau ðæt]

释义：: 既然

例句：: Now that the problem has been identified, appropriate action can be taken.
现在既已找出问题的症结，即可采取适当行动。换一句; They are hoping for a return to normality now that the war is over.
既然战争结束了，他们希望一切都恢复常态。换一句; Now that's a whole 'nother question.
但那完全是另一个问题。换一句

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16/20 报错

oxygen [ˈɔksidʒən]

释义：: n. 氧

例句：: the first Briton to climb Everest without oxygen
第一个未借助氧气设备登上珠穆朗玛峰的英国人换一句; a bubble of oxygen
氧气泡换一句; Hydrogen and oxygen combine to form water.
氢与氧化合成水。换一句

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17/20 报错

physicist [ˈfizisist]

释义：: n. 物理学家

例句：: I think he's a physicist or something of that nature.
我想他大概是物理学家或那一类的人. 换一句; He is a physicist of the first rank.
他是一流的物理学家. 换一句; Her husband is a world - known physicist.
她的丈夫是一位世界著名的物理学家. 换一句

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18/20 报错

presence [ˈprezəns]

释义：: n. 出席；到场；存在

例句：: I suppose your presence here today is not entirely coincidental .
我认为你今天来这里不完全是碰巧。换一句; The constant presence of the media was very intrusive.
媒体一直在场十分令人讨厌。换一句; He hardly seemed to notice my presence.
他似乎没有注意到我在场。换一句

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19/20 报错

pull [ pul]

释义：: n.&vt. 拉；拖；牵引力

例句：: Who wants to pull this cracker with me?
谁跟我拉响这个彩炮？换一句; the gravitational pull of the moon
月球的引力换一句; Pull the lever towards you to adjust the speed.
把操纵杆向你身体一侧拉动以调节速度。换一句

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puzzle [ˈpʌzl]

释义：: n. 谜；难题
vt.&vi.迷惑；为难

例句：: It's good for students to puzzle things out for themselves.
让学生们自己思索解决难题很有好处. 换一句; Their reason for doing it is still a puzzle to me.
他们为什么干那件事仍然让我费解. 换一句; I'm in a puzzle as to what to do next.
对于下一步该做什么我也不知道. 换一句

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小易英语背单词