EN： The coordinating conjunction 'so' is used to connect two independent clauses, where the second clause expresses the result or consequence of the first clause.
中文： 对等连接词「so」（所以）用于连接两个独立从句，第二个从句表示第一个从句所产生的结果或影响。
It was raining, so we stayed indoors.
那时正在下雨，所以我们待在室内。
EN： The modal verb 'must' is used to express strong obligation, necessity, or duty. It is followed by the base form of the verb (bare infinitive).
中文： 情态助动词「must」（必须）用于表达强烈的义务、必要性或职责。其后接动词原形。
We must respect the rules of the library.
我们必须遵守图书馆的规定。
EN： This sentence reflects a global environmental consciousness, emphasizing shared responsibility. The phrase 'one planet' is often used in environmental campaigns to highlight that Earth's resources are finite and belong to all humanity.
中文： 這句話反映了全球性的環保意識，強調「共同責任」。「one planet」（同一個地球）這個詞常用於環保運動中，旨在提醒人們地球資源是有限的，且屬於全人類共有。
EN： The subordinating conjunction 'because' is used to introduce a dependent clause (adverbial clause of reason) that explains the cause or reason for the action in the main clause.
中文： 从属连词“because”（因为）用于引导从属从句（原因状语从句），用来解释主句动作发生的原因或理由。
We walk to school because it is close.
我们走路去上学，因为学校很近。
EN： The simple present tense is used here to express a habitual action ('I recycle') and a general truth or fact ('it saves trees').
中文： 此处使用一般现在时来表示习惯性行为（「I recycle」）以及普遍真理或事实（「it saves trees」）。
She turns off the lights because she wants to save energy.
她关掉电灯，因为她想节省能源。
EN： In many English-speaking countries, recycling is a deeply ingrained daily habit. Schools often teach children the 'Three Rs' (Reduce, Reuse, Recycle) from a very young age, making environmental protection a common topic of everyday conversation.
中文： 在許多英語系國家，資源回收是根深蒂固的日常習慣。學校通常從小就向孩子灌輸「3R」原則（減少使用 Reduce、重複使用 Reuse、循環回收 Recycle），使環保成為日常對話中非常普遍的話題。
EN： The modal verb 'can' is used to express ability or possibility. It is followed by the base form of the verb (bare infinitive) without 'to'. In this sentence, 'can' applies to both 'walk' and 'ride' connected by the coordinating conjunction 'or'.
中文： 情态助动词「can」用于表示能力或可能性。其后必须接动词原形（不带 to 的不定式）。在本句中，「can」同时修饰由并列连词「or」连接的「walk」和「ride」两个动词。
We can swim or play tennis this afternoon.
我们今天下午可以去游泳或打网球。
EN： The coordinating conjunction 'or' is used to connect two or more alternatives. Here, it links the two verb phrases 'walk' and 'ride bikes' to show choice.
中文： 并列连词「or」（或者）用于连接两个或多个选择。在此处，它连接了「walk」（走路）与「ride bikes」（骑自行车）两个动词短语，表示可供选择的方式。
You can have tea or coffee.
你可以喝茶或咖啡。
EN： In many Western countries, walking or riding bikes to school (often called 'active commuting') is highly encouraged to promote physical health and reduce carbon emissions. Many schools have dedicated bicycle racks and safety programs to support this.
中文： 在許多西方國家，走路或騎自行車上學（通常被稱為「主動通勤」）受到高度鼓勵，這不僅能促進身體健康，還能減少碳排放。許多學校都設有專用的自行車停放架和安全宣導活動來支持這一舉措。
EN： The coordinating conjunction 'but' is used to connect two independent clauses that show contrast. It is preceded by a comma when connecting two complete sentences.
中文： 对等连接词「but」（但是）用于连接两个表示对比的独立从句。当连接两个完整的句子时，前面通常会加上逗号。
The weather was cold, but we went for a walk anyway.
天气很冷，但我们还是去散步了。
EN： The causative structure 'make + object + adjective' is used to describe causing someone or something to enter a certain state or condition.
中文： 使役结构「make + 宾语 + 形容词」用于描述使某人或某物进入某种状态或情况。
Regular exercise can make your body strong.
规律的锻炼可以让你的身体强壮。
EN： The Zero Conditional is used to talk about general truths, scientific facts, or situations where one event always leads to another. It is structured as: 'When/If + Present Simple, Present Simple'.
中文： 零类条件句（Zero Conditional）用于描述普遍真理、科学事实，或某个事件必然会导致另一个结果的情况。其结构为：「When/If + 现在简单式，现在简单式」。
When you heat ice, it melts.
当你加热冰块时，它会融化。
EN： Indefinite pronouns like 'everyone', 'someone', and 'nobody' are grammatically singular. Therefore, the verb that follows them must take the singular form (e.g., 'suffers' with an '-s').
中文： 不定代词如「everyone」（每个人）、「someone」（某人）和「nobody」（无人）在语法上视为单数。因此，其后接的动词必须使用单数形式（例如：动词词尾加 '-s' 的 'suffers'）。
Everyone wants to be happy.
每个人都想要快乐。
EN： This sentence reflects a growing global awareness of environmental protection and shared responsibility. In English-speaking cultures, environmental education often emphasizes that individual actions (like wasting water) have collective consequences, fostering a sense of community duty.
中文： 這句話反映了全球對於環境保護與共同責任意識的提升。在英語系國家的文化中，環境教育經常強調個人的行為（如浪費水資源）會帶來集體的後果，藉此培養公民的社會責任感。
EN： The conjunction 'although' is used to introduce a subordinate clause of concession, showing a contrast. In English, we do not use 'but' in the main clause when 'although' is used at the beginning of the sentence.
中文： 连词「although」（虽然）用于引导让步状语从句，表示对比。在英文中，当句首使用了「although」时，主句中「不可」再并用连词「but」（但是）。
Although it was raining, we went for a walk.
虽然正在下雨，我们还是去散步了。
EN： The modal verb 'can' is used to express ability or possibility. It is followed by the base form of the verb (in this case, 'help').
中文： 情态助动词「can」（能够/可以）用来表示能力或可能性。其后必须接动词原形（在此句中为「help」）。
We can save energy by turning off the lights.
我们可以用关灯来节省能源。
EN： The coordinating conjunction 'and' is used to connect two verbs ('turn off' and 'save') that share the same subject ('I'). This creates a compound predicate, making the sentence more concise.
中文： 并列连词「and」（和、并且）用于连接共享同一个主语（I）的两个动词（turn off 和 save）。这构成了复合谓语，使句子更简洁。
She washes the dishes and cleans the kitchen.
她洗碗并清理厨房。
EN： The phrasal verb 'turn off' means to stop the flow of electricity, gas, or water. It is a separable phrasal verb, meaning the object can go between 'turn' and 'off' (e.g., 'turn lights off') or after 'off' (e.g., 'turn off lights').
中文： 动词短语「turn off」意思是关闭电力、煤气或水源。它是一个可拆分的动词短语，这意味着宾语可以放在「turn」和「off」之间（例如 turn lights off），也可以放在「off」之后（例如 turn off lights）。
Please turn off the TV before you go to bed.
请在睡前把电视关掉。
EN： In many English-speaking countries, environmental awareness campaigns frequently use simple, direct imperatives or personal statements like 'I turn off lights' to encourage daily energy conservation habits.
中文： 在許多英語系國家，環保宣導活動經常使用簡單、直接的祈使句或個人陳述（如「I turn off lights」）來鼓勵人們養成日常節約能源的習慣。
EN： The subordinating conjunction 'because' is used to introduce a clause of reason. It connects the main action ('We plant trees') with the cause or reason behind it ('they clean the air'). Unlike in Chinese, where 'because' (因為) and 'so' (所以) are often used together in a sentence, English only uses one conjunction to connect these two clauses.
中文： 从属连词「because」（因为）用于引导表示原因的从属从句。它将主要动作（我们种植树木）与其背后的原因（它们能净化空气）连接起来。与中文常同时使用「因为...所以...」不同，英文在连接这两个从句时，只会使用一个连词（用了 because 就不能再用 so）。
I stay at home because it is raining.
我待在家里，因为正在下雨。
EN： The pronoun 'they' is a third-person plural subject pronoun. In this sentence, it is used as an anaphora to refer back to the plural noun 'trees' mentioned in the main clause, avoiding repetitive language.
中文： 代词「they」（它们）是第三人称复数主格代词。在本句中，它作为照应语，用来指代前句中提到的复数名词「trees」（树木），以避免语言上的重复。
I bought some apples because they looked fresh.
我买了一些苹果，因为它们看起来很新鲜。
EN： First Conditional: Used to talk about possibilities in the present or in the future. The structure is 'If + simple present, will + base verb'.
中文： 第一类条件句（First Conditional）：用于描述在现在或未来极有可能发生的真实情况。结构为「If + 现在简单式，will + 动词原形」。
If it rains tomorrow, we will cancel the picnic.
如果明天下雨，我们就会取消野餐。
EN： Comparative Adjectives: 'Brighter' is the comparative form of the adjective 'bright'. For short adjectives, we add '-er' to compare two states or things.
中文： 比较级形容词：「brighter」是形容词「bright」（光明的）的比较级。对于单音节的短形容词，我们通常在词尾加上「-er」来比较两种状态或事物。
With this new lamp, the room is much brighter.
有了这盏新灯，房间变得明亮多了。
EN： This sentence reflects a common theme in modern environmental discourse: the emphasis on immediate, collective action to prevent climate change and secure a better future for subsequent generations.
中文： 這句話反映了現代環保論述中的一個共同主題：強調立即採取集體行動，以防止氣候變遷，並為後代子孫確保一個更美好的未來。
EN： The modal verb 'must' is used to express strong obligation or necessity. It is followed by the base form of the verb (in this case, 'change').
中文： 情态助动词「must」用于表示强烈的义务或必要性。其后须接动词原形（在此句中为「change」）。
We must protect the environment.
我们必须保护环境。
EN： The conjunction 'or' is used here to introduce the negative consequence of not doing the action in the first clause. It translates to 'otherwise' or 'else'.
中文： 连词「or」在此处用于引导若不执行前句动作将会产生的否定后果，相当于「否则」。
Hurry up, or you will miss the bus.
快一点，否则你会错过公交车。
EN： The phrasal verb 'care about' means to feel that something is important and to be concerned about it. It is followed by a noun or pronoun as its object.
中文： 短语动词「care about」表示觉得某事很重要、并对其表示关心或在意。后面接名词或代词作为宾语。
She cares about animal welfare.
她关心动物福利。
EN： The coordinating conjunction 'and' is used to connect two independent clauses (complete thoughts) of equal importance. A comma is typically placed before 'and' when joining two independent clauses.
中文： 并列连词「and」用于连接两个同样重要且独立的从句（完整的想法）。当连接两个独立从句时，通常会在「and」之前加上逗号。
I like reading, and I want to write a book.
我喜欢阅读，而且我想写一本书。
EN： The verb 'matter' is an intransitive verb meaning 'to be important or have a significant effect.' It does not require a direct object.
中文： 动词「matter」是不及物动词，意思是「重要」或「有重大影响」，其后不需要接直接宾语。
Your opinion matters to us.
您的意见对我们很重要。
EN： The subordinating conjunction 'when' is used to introduce an adverbial clause of time, indicating the condition or time under which the main action occurs.
中文： 从属连词「when」用于引导时间状语从句，表示主句动作发生的时间或条件。
We feel happy when we help others.
当我们帮助他人时，我们感到快乐。
EN： The appositive pronoun 'all' is used after the subject pronoun 'we' to emphasize that every member of the group is included in the action.
中文： 同位语代词「all」置于主格代词「we」之后，用以强调群体中的每一个人皆参与了该项动作。
We all want to protect the environment.
我们大家都想要保护环境。
EN： Adjective ordering: When multiple adjectives describe a noun, they follow a specific order. Here, 'small' (size) comes before 'blue' (color).
中文： 形容词的排列顺序：当有多个形容词修饰同一个名词时，需遵循特定的顺序。在此处，「small」（尺寸）置于「blue」（颜色）之前。
She lives in a big, white house.
她住在一栋白色的大房子里。
EN： The phrase 'blue planet' is a common and affectionate way to refer to Earth, emphasizing its oceans and vulnerability in the vastness of space. It is often used in environmental contexts to inspire a sense of global community and shared responsibility.
中文： 「blue planet」（藍色星球）是人們對地球常用且充滿感情的稱呼，強調了在浩瀚太空中地球的海洋與其脆弱性。這句話常用於環保情境中，以激發全球共同體意識與共同責任感。
EN： The conjunction 'although' is used to introduce a subordinate clause of concession, showing a contrast. In English, we do not use 'but' in the main clause when 'although' is used.
中文： 从属连词「although」（虽然）用于引导表示让步的从属从句，以呈现对比。在英文语法中，当句首使用了「although」，后面的主句就不能再使用「but」（但是）。
Although it was raining, we went for a walk.
虽然下着雨，我们还是去散步了。
EN： The relative clause 'we must respect' is an adjective clause modifying the noun 'limits'. The relative pronoun 'that' or 'which' is omitted because it functions as the object of the verb 'respect'.
中文： 关系从句「we must respect」是一个形容词从句，用来修饰名词「limits」（限制）。这里省略了关系代词「that」或「which」，因为它在从句中担任动词「respect」的宾语。
This is the book I bought yesterday.
这是我昨天买的那本书。
EN： Adverbial clauses of time are introduced by subordinating conjunctions like 'when'. They indicate the time at which the action in the main clause takes place. In this sentence, 'When we waste water or energy' sets the condition or time for the main action 'we harm our shared home'. Note that we use the present simple tense in the time clause to refer to general truths or future possibilities.
中文： 时间状语从句由「when」（当……时）等从属连词引导，用来表示主句动作发生的时间。在本句中，「When we waste water or energy」为主要动作「we harm our shared home」设定了前提时间或条件。请注意，在表示普遍真理或规律时，时间从句中需使用一般现在时。
When you turn off the lights, you save electricity.
当你关灯时，你就节省了电。
EN： The coordinating conjunction 'or' is used to connect two or more words, phrases, or clauses of equal grammatical rank, presenting a choice or alternative. Here, 'or' connects the two noun objects 'water' and 'energy'.
中文： 并列连词「or」（或者）用于连接两个或多个语法地位对等的单词、短语或从句，表示选择或并列关系。在此处，「or」连接了两个名词宾语「water」（水）与「energy」（能源）。
You can ride a bike or walk to school.
你可以骑自行车或走路去上学。
EN： The concept of 'our shared home' reflects a global environmental perspective, emphasizing that Earth is a single, interconnected ecosystem where individual actions have collective consequences. This holistic view is central to modern environmental education and sustainability campaigns worldwide.
中文： 「我們共同的家園」（our shared home）這一概念反映了全球環保視角，強調地球是一個單一且相互關聯的生態系統，每個人的行為都會產生集體後果。這種整體觀是全球現代環境教育和永續發展運動的核心理念。
EN： The Present Continuous Tense (be + V-ing) is used here to describe an action or trend that is currently in progress or changing over time (e.g., 'are rising').
中文： 现在进行时（be 动词 + 现在分词）在此处用于描述目前正在发生或随着时间不断变化的动作或趋势（例如：'are rising'，正在上升）。
Global temperatures are rising every year.
全球气温每年都在上升。
EN： The coordinating conjunction 'so' is used to connect two independent clauses, showing a cause-and-effect relationship. The first clause is the cause, and the second clause (introduced by 'so') is the result.
中文： 并列连词 'so'（所以）用于连接两个独立分句，表示因果关系。第一个分句是原因，第二个分句（由 'so' 引导）是结果。
It was raining, so we stayed indoors.
下雨了，所以我们待在室内。
EN： This sentence reflects the global urgency surrounding climate change and rising sea levels, a major environmental concern in the 21st century. The phrase 'act with care' emphasizes collective responsibility and mindful living.
中文： 這句話反映了全球對氣候變遷和海平面上升的緊迫關注，這是21世紀重大的環境議題。'act with care'（謹慎行動）這個片語強調了集體責任感以及對環境友善的生活方式。
EN： The modal verb 'can' is used to express ability or possibility. It is followed by the base form of the verb (infinitive without 'to'). In this sentence, 'can' applies to all three verbs in the list: 'recycle', 'save', and 'plant'.
中文： 情态助动词「can」（能够、可以）用于表示能力或可能性。其后必须接动词原形（不带 to 的不定式）。在本句中，「can」同时修饰清单中的三个动词：「recycle」（回收）、「save」（节约）和「plant」（种植）。
We can reduce waste by using reusable bags.
我们可以通过使用环保袋来减少垃圾。
EN： Parallel structure (or parallelism) involves using the same pattern of words to show that two or more ideas have the same level of importance. When listing three or more items, we use commas between them and place the coordinating conjunction 'and' before the last item (A, B, and C). Here, three base verbs are parallel: 'recycle', 'save [power]', and 'plant [more trees]'.
中文： 平行结构（排比）是指使用相同的单词结构来表示两个或多个想法具有相同的重要性。当列出三个或更多项目时，项目之间用逗号隔开，并在最后一个项目之前加上并列连词「and」（即 A, B, and C）。在这里，三个原形动词呈现平行对称：「recycle」（回收）、「save [power]」（节约能源）和「plant [more trees]」（种植更多树木）。
She likes to swim, run, and ride a bike.
她喜欢游泳、跑步和骑自行车。
EN： The subordinating conjunction 'because' is used to introduce a dependent clause (adverbial clause of reason) that explains why the action in the main clause happens. In English, we do not use 'so' in the main clause when 'because' is used.
中文： 从属连词「because」（因为）用来引导状语从句（原因从句），解释主句动作发生的原因。在英文中，当句子开头或中间使用了「because」，主句中就不能再重复使用「so」（所以）。
We stayed indoors because it was raining heavily.
我们待在室内，因为雨下得很大。
EN： The verb 'keep' can be used in the pattern 'keep + object + adjective' to mean 'to cause someone or something to remain in a specified state'. Here, 'the air' is the object and 'clean' is the object complement (adjective).
中文： 动词「keep」后面常接「宾语 + 形容词」的结构，表示「使某人或某事物保持在特定的状态」。在此句中，「the air」（空气）是宾语，「clean」（干净的）是形容词作宾语补足语。
Please keep the door open.
请保持门开着。
EN： In many Western countries, riding a bike to school or work is highly encouraged as an eco-friendly and healthy lifestyle choice. Schools often have dedicated bicycle racks, and cities invest in bike lanes to promote this green habit.
中文： 在許多西方國家，騎自行車上學或上班被視為一種非常環保且健康的生活方式。學校通常設有專用的自行車停放架，城市也會規劃自行車專用道，以推廣這種綠色習慣。
EN： The coordinating conjunction 'but' is used to connect two independent clauses, showing a contrast or contradiction between the two ideas.
中文： 并列连词「but」（但是）用于连接两个独立从句，表示前后两个想法之间的对比或转折关系。
She wanted to go for a walk, but it started to rain.
她想去散步，但开始下雨了。
EN： The verb 'count' can be used as an intransitive verb meaning 'to be significant or important'. It is often used with 'every' or 'all' to emphasize collective value.
中文： 动词「count」可作为不及物动词，意思是「有重要性、起作用」。它经常与「every」或「all」连用，以强调集体累积的价值。
EN： The phrase 'every action counts' reflects a common environmental and social philosophy in English-speaking cultures, emphasizing individual responsibility. It encourages people that even small, daily efforts (like recycling or saving water) are meaningful in solving global issues.
中文： 「every action counts」（每一個行動都很重要）反映了英語系國家常見的環保與社會哲學，強調個人責任感。它鼓勵人們，即使是日常生活中微小的努力（如資源回收或節約用水），對於解決全球性問題也同樣具有重要意義。
EN： The First Conditional is used to talk about possibilities in the present or in the future. It uses the structure: 'If + Simple Present, will/can/verb phrase'. In this sentence, 'If each of us does...' is the condition, and 'the change adds up fast' is the result (expressed as a general truth in the present simple).
中文： 第一条件句（First Conditional）用于讨论现在或未来可能发生的情况。其结构为：「If + 现在简单式，will/can/动词短语」。在此句子中，「If each of us does...」是条件，而「the change adds up fast」则是结果（以现在简单式表示一项普遍真理）。
If you study hard, you will pass the exam.
如果你努力学习，你就会通过考试。
EN： The phrasal verb 'add up' means to increase gradually in quantity or size until it becomes significant. 'Each of us' is a singular subject, which is why it takes the singular verb 'does'.
中文： 短语动词「add up」意为「逐渐增加、积少成多」，直到达到显著的程度。另外，「each of us」（我们每个人）在英文中视为单数主语，因此后方接单数动词「does」。
These small expenses add up to a lot of money over time.
随着时间的推移，这些微小的开销会累积成一笔大数目。
EN： This sentence reflects a common environmental philosophy in English-speaking cultures: collective individualism. It emphasizes that while global problems like climate change seem overwhelming, individual small actions (like recycling or saving water) are meaningful and powerful when multiplied by millions of people.
中文： 這句話反映了英語系國家常見的環保哲學：集體個人主義。它強調雖然像氣候變遷這樣的全球性問題看似令人無能為力，但當成千上萬人的微小個人行動（如資源回收或節約用水）累積起來時，就會產生強大的改變力量。
EN： The correlative conjunction 'not... but...' is used to connect two contrasting ideas, indicating that the first idea is false or rejected, while the second is true or accepted. It requires parallel grammatical structure after both 'not' and 'but'.
中文： 关联连词「not... but...」（不是……而是……）用于连接两个对比的观点，表示否定前者而肯定后者。在「not」和「but」后面需要接相同语法结构的对称成分。
He succeeded not by luck but through hard work.
他的成功不是靠运气，而是通过努力工作。
EN： Reflexive pronouns (such as 'ourselves') are used when the subject and the object of the verb or preposition are the same. In this sentence, 'ourselves' refers back to the subject 'We'.
中文： 反身代词（如「ourselves」）用于当动词或介词的主语与宾语为同一人称时。在本句中，「ourselves」（我们自己）呼应了主语「We」（我们）。
We should believe in ourselves.
我们应该相信我们自己。
EN： The phrasal verb 'belong to' is used to indicate ownership or relationship. It is a non-progressive (stative) verb, meaning it is rarely used in the continuous (-ing) form.
中文： 动词短语「belong to」用于表示所有权或归属关系。它是一个静态动词（stative verb），通常不使用进行时（-ing 形式）。
These books belong to the library.
这些书属于图书馆。
EN： The word 'alike' can function as an adverb meaning 'equally' or 'in the same way'. When placed at the end of a sentence or clause, it emphasizes that the statement applies to all parties mentioned equally.
中文： 单词「alike」可作为副词使用，意思是「同样地」或「以相同方式」。当它放在句子或从句的末尾时，用来强调所述情况同样适用于所有提及的对象。
The teacher treated the students and parents alike.
老师对待学生和家长一视同仁。
EN： Adverbial clause of time introduced by 'when'. This clause sets the condition or time frame for the main action. In this sentence, 'When people work together' is the dependent clause, and 'even big problems grow smaller' is the independent main clause.
中文： 由 'when'（当……时）引导的时间状语从句。此从句用于设定主要动作发生的时间或条件。在本句中，「When people work together」是从属从句，而「even big problems grow smaller」是独立的主句。
When the sun sets, the temperature drops quickly.
当太阳下山时，温度会迅速下降。
EN： Linking verb 'grow' used to indicate a change in state. 'Grow' is followed by a comparative adjective ('smaller') acting as a subject complement, meaning 'to become' or 'to turn'.
中文： 系动词「grow」用于表示状态的改变。后面接比较级形容词（smaller）作为主语补语，意思是「变得」或「转变为」。
As autumn approaches, the days grow shorter.
随着秋天临近，白天变得越来越短。
EN： This sentence reflects a strong cultural value of community action and collective responsibility, which is highly prominent in modern environmental movements. The phrasing emphasizes that individual efforts, when combined, have a powerful collective impact.
中文： 這句話反映了社群行動與集體責任的強烈文化價值觀，這在現代環保運動中非常受到重視。此句型強調了個人的努力在凝聚起來時，能產生強大的集體影響力。
EN： The phrase 'In the end' is a transitional adverbial phrase used to introduce a final conclusion, summary, or ultimate result after considering all facts.
中文： 短语「In the end」是一个过渡性的副词短语，用于在考虑所有事实后，引出最终的结论、总结或最终结果，意为「归根结底」或「最后」。
In the end, honesty is always the best policy.
归根结底，诚实总是最好的策略。
EN： The verb 'means' (singular form of 'mean') is used here to link a subject to its logical consequence or definition. In this structure, 'A means B' indicates that A logically results in or is equivalent to B.
中文： 动词「means」（动词「mean」的单数形式）在此处用于将主语与其逻辑结果或定义联系起来。在这种结构中，「A means B」表示 A 在逻辑上会导致 B，或者与 B 等同。
EN： This sentence reflects the global citizenship mindset, emphasizing that environmental and social issues transcend national borders. The repetition of 'one' ('one world', 'one shared responsibility') is a common rhetorical device in English speeches to create a sense of unity and urgency.
中文： 這句話反映了「全球公民」的思維方式，強調環境與社會問題是超越國界的。英文演講中常用「one」的重複（如「one world, one shared responsibility」）作為修辭手法，以營造團結感與緊迫感。
EN： Wh-questions with modal verbs: In English, questions starting with a question word (like 'how') followed by a modal verb (like 'can') use the word order: Wh-word + modal verb + subject + main verb. The main verb must be in its base form.
中文： 使用情态助动词的特殊疑问句：在英文中，以疑问词（如 'how'）开头并结合情态助动词（如 'can'）的问句，其语序为：疑问词 + 情态助动词 + 主语 + 主要动词。主要动词必须使用原形动词。
How can we protect the environment?
我们该如何保护环境？
EN： Direct address with comma: When addressing someone directly by name (vocative case) at the end of a sentence, a comma must be placed before the name to separate it from the rest of the clause.
中文： 呼格逗号：在句子末尾直接称呼某人的名字（呼格）时，名字前面必须加上逗号，以将其与句子的其余部分隔开。
What should we do, Tom?
我们该做什么呢，汤姆？
EN： In English-speaking cultures, referring to Earth as 'the planet' is very common in discussions about environmentalism and sustainability. It emphasizes our shared responsibility to care for the global environment.
中文： 在英語系國家中，在討論環保與永續發展時，經常會用 'the planet' 來指代地球。這強調了我們共同守護全球環境的責任。
EN： The modal verb 'can' is used to express ability or possibility. It is followed by the base form of the verb (bare infinitive), in this case, 'recycle'.
中文： 情态动词「can」（能够/可以）用来表示能力或可能性。其后必须接动词原形（不带 to 的不定式），在此句中为「recycle」（回收）。
We can save water by taking shorter showers.
我们可以通过缩短淋浴时间来节约用水。
EN： The subordinating conjunction 'because' is used to introduce a clause of reason, explaining why the action in the main clause ('We can recycle') is possible or necessary.
中文： 从属连词「because」（因为）用来引导原因状语从句，解释为什么主句（「我们可以回收」）的动作是可行或必要的。
We walk to school because it reduces pollution.
我们走路去上学，因为这样可以减少污染。
EN： The coordinating conjunction 'or' is used to connect two alternative verbs ('walk' and 'bike') that share the same subject ('I'). This creates a compound predicate.
中文： 并列连词「or」（或者）用来连接两个共享同一个主语（I）的替代性动词（walk 与 bike），形成复合谓语。
We can study or play after school.
我们放学后可以读书或玩耍。
EN： The 'to-infinitive' (to + base verb) is used here as an adverbial of purpose, answering the question 'why' the action is done. In this sentence, 'to keep' means 'in order to keep'.
中文： 不定式（to + 原形动词）在此处用作副词短语表示「目的」，回答了动作「为什么」而做。在本句中，「to keep」表示「为了保持」。
She saves money to buy a new computer.
她存钱是为了买一台新电脑。
EN： In many English-speaking countries, especially in eco-conscious communities, 'biking' or 'cycling' to work or school is highly encouraged as a green alternative to driving, reflecting a strong cultural emphasis on individual environmental responsibility.
中文： 在許多英語系國家（特別是具有環保意識的社區），人們非常鼓勵「騎自行車」上班或上學，將其視為開車之外的綠色替代方案，這反映了文化上對個人環保責任的重視。
EN： The Zero Conditional is used to talk about things that are always or generally true, such as scientific facts or general habits. It uses the structure: 'When/If + Present Simple, Present Simple'.
中文： 零类条件句（Zero Conditional）用于描述总是或普遍属实的事情，例如科学事实或一般习惯。其结构为：「When/If + 现在简单式，现在简单式」。
When you heat ice, it melts.
当你加热冰块时，它会融化。
EN： Indefinite pronouns like 'everyone', 'someone', and 'nobody' are grammatically singular. Therefore, the verb that follows them must take the third-person singular form (e.g., 'benefits' with an '-s').
中文： 像 'everyone'（每个人）、'someone'（某人）和 'nobody'（没有人）这样的不定代词在语法上视为单数。因此，后面的动词必须使用第三人称单数形式（例如 'benefits' 加上 '-s'）。
Everyone loves a good story.
每个人都喜欢好故事。
EN： The conjunction 'although' is used to introduce a subordinate clause that expresses a concession or contrast. In English, when a sentence begins with 'although', we do not use 'but' in the main clause. A comma is used to separate the two clauses.
中文： 连词「although」（虽然）用于引导表示让步或对比的从属从句。在英文中，当句子以「although」开头时，主句中「不能」再使用「but」（但是）。两句之间需使用逗号隔开。
Although it was raining, we went for a walk.
虽然正在下雨，我们还是去散步了。
EN： The verb 'keep' followed by a gerund (verb-ing) is a common phrasal pattern meaning to continue doing an action without stopping or to repeat it frequently.
中文： 动词「keep」后面接动名词（V-ing）是一个常见的句型，表示不间断地持续进行某个动作，或频繁重复该动作。
You must keep practicing if you want to improve.
如果你想进步，你必须持续练习。
EN： The First Conditional is used to talk about possibilities in the present or in the future. It uses the structure: 'If + Simple Present, Will/Modal + Verb'. In this sentence, 'looks' is used instead of 'will look' to describe a state that immediately results from the condition.
中文： 第一条件句（First Conditional）用于讨论现在或未来可能发生的真实情况。其基本结构为「If + 现在简单式，will/情态助动词 + 动词原形」。在本句中，主句使用「looks」而非「will look」，用以描述条件达成后随之呈现的即时状态。
If it rains tomorrow, we will cancel the picnic.
如果明天下雨，我们就会取消野餐。
EN： The adverb 'now' is used to modify the verb 'act', indicating that the action needs to happen immediately in the present moment to affect the future.
中文： 副词「now」（现在）在此处修饰动词「act」（行动），强调必须在当下立即采取行动，才能对未来产生影响。
EN： This sentence reflects a growing global consciousness among younger generations regarding environmental protection and climate change. The phrase 'act now' is a common rallying cry in environmental activism, emphasizing individual and collective responsibility.
中文： 這句話反映了年輕一代對於環境保護和氣候變遷日益增強的全球意識。「act now」（現在採取行動）是環保運動中常見的號召口號，強調個人與集體的責任感。
EN： The coordinating conjunction 'and' is used to connect two independent clauses or two verbs sharing the same subject. In this sentence, 'and' connects the compound verbs 'turn off' and 'save', which both share the subject 'I'.
中文： 并列连词「and」（并且）用于连接两个独立从句，或连接共享同一个主语的两个动词。在本句中，「and」连接了复合动词「turn off」（关闭）与「save」（节省），这两个动作的主语皆为「I」（我）。
I wash the dishes and clean the kitchen.
我洗碗并清理厨房。
EN： The word 'daily' functions as an adverb of frequency meaning 'every day'. Adverbs of frequency or time like 'daily' are typically placed at the end of the sentence to show how often an action occurs.
中文： 单词「daily」在此作为频率副词，意思是「每天」。像「daily」这类表示频率或时间的副词，通常放在句尾，用来表示动作发生的频率。
She exercises daily to stay healthy.
她每天运动以保持健康。
EN： In many English-speaking countries, environmental conservation and reducing one's carbon footprint are highly emphasized in schools and daily life. Simple habits like turning off lights and conserving water are commonly taught from a young age as individual responsibilities.
中文： 在許多英語系國家，學校和日常生活中都非常強調環境保護與減少碳足跡。從小就會教育孩子養成隨手關燈和節約用水等簡單習慣，並將其視為個人的基本責任。
EN： Coordinating Conjunction 'and': Used to connect two independent clauses (complete sentences) of equal grammatical rank. In this sentence, it links 'We plant trees' and 'they clean our air' to show a logical addition or result.
中文： 并列连词「and」：用于连接两个语法地位平等的独立从句（完整句子）。在本句中，它将「We plant trees」与「they clean our air」连结起来，表示逻辑上的递进或结果。
She saves water, and he recycles paper.
她节约用水，而他回收纸张。
EN： Subject Pronoun 'they': Used to replace plural nouns to avoid repetition. Here, 'they' refers back to the plural noun 'trees'.
中文： 主格代词「they」：用于代替复数名词以避免重复。在此处，「they」指的是前文的复数名词「trees」（树木）。
I bought some books, and they are very interesting.
我买了一些书，它们非常有趣。
EN： The verb 'matter' is an intransitive verb meaning 'to be important' or 'to have significance'. It does not require a direct object.
中文： 动词「matter」是不及物动词，意思是「重要」或「有重大关系」，其后不需要接直接宾语。
Your opinion matters to us.
您的意见对我们很重要。
EN： The subordinating conjunction 'when' is used to introduce an adverbial clause of time, indicating the condition or time under which the main action occurs.
中文： 从属连接词「when」（当……时）用于引导时间状语从句，表示主句动作发生的时间或条件。
We feel happy when we help others.
当我们帮助他人时，我们会感到快乐。
EN： This sentence uses 'Noun Phrase Parallelism' (or ellipsis), where verbs are omitted to create a strong, slogan-like impact. Each phrase consists of a numeral ('one') followed by a noun or a noun phrase modified by an adjective ('shared duty'). This structure is highly effective in persuasive writing and speeches.
中文： 此句子使用了「名词短语排比」（或省略句），省略了动词以创造出强烈、口号般的冲击感。每个短语都由数字（「one」）后接名词，或由形容词修饰的名词短语（「shared duty」）组成。这种结构在说服性写作和演讲中非常有效。
One team, one goal, one victory.
一个团队，一个目标，一场胜利。
EN： The word 'shared' is a past participle (V-ed) functioning as an adjective. It modifies the noun 'duty' to indicate that the duty is held or experienced in common by more than one person.
中文： 单词「shared」是过去分词（V-ed）用作形容词。它修饰名词「duty」，表示这份责任是由一个以上的人共同承担或体验的。
We have a shared interest in music.
我们对音乐有共同的兴趣。
EN： This type of three-part parallel structure is known as a 'tricolon' in rhetoric. It is a classic device used in English speeches, slogans, and literature to make a statement memorable, balanced, and emotionally resonant. It emphasizes global unity and collective environmental responsibility.
中文： 這種三部分組成的排比結構在修辭學中被稱為「三肢句」（tricolon）。這是英文演講、口號和文學中常用的經典手法，能使陳述更易記、平衡且產生情感共鳴。它在此處強調了全球的團結與共同的環保責任。
重要单词附有 IPA 发音、定义、例句和互动式测验。
在本文中： 回收利用（废弃物）
在本文中： 受苦、遭受痛苦
在本文中： 能源、能量
在本文中： 界限、限度
在本文中： 尊重、重视
在本文中： 伤害、损害
在本文中： 保护
在本文中： 资源
在本文中： 得益、受惠
在本文中： 责任、职责
片语包含类型标示、双语定义、用法说明和例句。
To stop the flow of electricity, gas, water, etc. by moving a switch or button
关掉（电器、水源等）
To be important or have an effect
有重要意义、起作用
To increase gradually until there is a large amount
积少成多、累加起来
To take part in an activity that other people are already doing
加入、参与