IELTS 寫作 Task 2 詞彙：80 個能拉高分數的字

IELTS 寫作考官不是在找最炫的字，是在找對的字。

7 分 Lexical Resource 的官方描述是：「使用足夠範圍的詞彙，展現一定彈性與精準度」。注意，它沒有說「使用最華麗的詞彙」。精準和彈性才是目標。一篇文章裡 "important" 出現四次的學生，不管文法多準，Lexical Resource 都不可能是 7 分。

殘酷的事實是：多數 IELTS 學生用「孤立背 500 個字」的方式準備。但考官在語境裡評詞彙。他們評你怎麼把字組合起來——搭配、語體、與你正在做的論證的契合度。知道 "exacerbate" 的意思是「加劇」還不夠。知道你應該寫 "exacerbate poverty" 而不是 "exacerbate a problem's importance"，才是把你分數推上去的東西。

這篇文章給你 80 個高價值字，依它們在 Task 2 文章裡的七種功能分類。每個字都附最重要的搭配，以及一句以 IELTS 7–8 分語體寫成的範例句。讀清單、研究搭配、考前用每個字練造完整句子。

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為什麼 Lexical Resource 是 Task 2 分數的成敗關鍵

Task 2 用四個權重相同的標準評分，各佔 25%：

1. 任務達成（Task Achievement） — 你完整回應題目了嗎？立場清楚嗎？
2. 連貫與銜接（Coherence and Cohesion） — 文章邏輯有組織嗎？段落流暢嗎？
3. 詞彙資源（Lexical Resource） — 詞彙範圍夠不夠精準？
4. 文法範圍與精準度（Grammatical Range and Accuracy） — 文法結構多樣且準確嗎？

很多學生把所有準備都放在文法。這是錯的。Lexical Resource 權重一樣，而且是 6.5 分考生最常掉分、本來能進到 7 分的那一項。

6 分和 7 分的差別

6 分 Lexical Resource 的描述是：「使用任務所需的適當範圍詞彙；嘗試使用較不常見詞彙，但有些不準。」

7 分的描述是：「使用足夠範圍詞彙，展現一定彈性與精準度；使用較不常見詞彙，並對風格與搭配有一定意識。」

兩個描述之間的差距，歸結為兩件事：範圍 和 搭配意識。6 分文章可以包含進階字，扣分發生在這些字被用錯、配錯名詞或動詞、或重複到沒有範圍。

6.5 陷阱

最常見的陷阱是這樣：學生背了 50 個「進階」字，灑遍整篇文章，但搭配錯了。考官讀到 "the problem was deeply exacerbated importantly by governmental negligence"，注意到搭配錯誤（"exacerbated importantly" 是錯的；你 exacerbate a situation、a crisis、inequality）。這個錯誤暴露了學生其實不真的會用這個字。

關鍵原則：只有對搭配有 90% 把握，才在文章裡用這個字。 簡單字精準用，永遠勝過複雜字尷尬用。

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80 個字——依文章功能分類

類別一：表達意見與立場（15 個）

這些字向考官清楚標出你的論點。它們把 "I think" 或 "I believe" 這類弱語氣換成有學術重量、適合 Task 2 語體的動詞。

字	關鍵搭配	範例句
contend	contend that; it is contended that	I would contend that stricter environmental regulation is the most effective mechanism for reducing industrial pollution.
advocate	advocate for; advocate a position; strongly advocate	Many economists advocate for a universal basic income as a means of addressing structural unemployment.
maintain	maintain that; firmly maintain; maintain a position	Proponents of this view maintain that access to higher education is a fundamental right, not a privilege.
assert	assert that; boldly assert; assert one's right	Critics assert that the current policy framework fails to account for the disproportionate impact on low-income communities.
postulate	postulate that; postulate a theory	Some urban planners postulate that compact city design can reduce per-capita carbon emissions by up to 40 percent.
concede	concede that; concede a point; readily concede	I concede that unrestricted immigration poses logistical challenges; however, the economic and cultural benefits are undeniable.
acknowledge	acknowledge that; acknowledge the complexity of; widely acknowledge	It must be acknowledged that technology alone cannot resolve deep-rooted social inequalities.
dispute	dispute the claim; hotly disputed; difficult to dispute	Many researchers dispute the assertion that social media is the primary driver of adolescent mental health decline.
refute	refute a claim; refute evidence; effectively refute	The longitudinal data effectively refutes the notion that standardized testing is a reliable predictor of academic success.
endorse	endorse a policy; widely endorsed; endorse the view	This essay endorses the view that governments bear primary responsibility for ensuring universal healthcare access.
posit	posit that; posit a relationship between	Behavioral economists posit that small environmental nudges can produce significant shifts in consumer decision-making.
surmise	surmise that; one might surmise	From the available evidence, one might surmise that the sharp decline in manufacturing employment is largely irreversible.
stipulate	stipulate that; stipulate conditions; as stipulated	International trade agreements typically stipulate that signatory nations must meet minimum labor protection standards.
qualify	qualify a statement; qualify one's position	It is important to qualify this argument by acknowledging that outcomes vary considerably across different economic contexts.
emphasize	emphasize the importance of; emphasize that; strongly emphasize	This essay emphasizes that language policy decisions must prioritize inclusion over administrative convenience.

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類別二：因果關係（15 個）

因果用語在 Task 2 是必備，因為幾乎每一種題型（意見、討論、問題─解決）都需要你解釋為什麼某事會發生、結果是什麼。

字／片語	關鍵搭配	範例句
attribute to	attribute X to Y; widely attributed to	The dramatic rise in obesity rates is largely attributed to the proliferation of ultra-processed food marketing.
stem from	stem from a lack of; stem from historical	Many contemporary social inequalities stem from historical patterns of discrimination that remain embedded in institutional structures.
give rise to	give rise to concerns; give rise to a phenomenon	Rapid urbanization has given rise to severe housing shortages in cities across the developing world.
culminate in	culminate in a crisis; ultimately culminate in	Years of inadequate infrastructure investment can culminate in catastrophic failures that cost far more to repair than prevent.
precipitate	precipitate a crisis; precipitate change; rapidly precipitate	The 2008 financial collapse was precipitated by decades of deregulation and unchecked speculative lending.
catalyze	catalyze change; catalyze innovation; catalyze a shift	Government subsidies for renewable energy have catalyzed significant private-sector investment in solar technology.
exacerbate	exacerbate poverty; exacerbate inequality; exacerbate a crisis	Remote work policies, while beneficial for some, have exacerbated the digital divide for households without reliable internet access.
mitigate	mitigate the impact of; mitigate risk; mitigate harm	Robust public health infrastructure can significantly mitigate the economic damage caused by infectious disease outbreaks.
alleviate	alleviate poverty; alleviate pressure; alleviate suffering	Targeted cash transfer programs have demonstrated measurable effectiveness in alleviating extreme poverty in sub-Saharan Africa.
foster	foster innovation; foster cooperation; foster a culture of	An open academic environment fosters the intellectual curiosity necessary for breakthrough scientific discovery.
engender	engender trust; engender resentment; engender change	Heavy-handed government surveillance policies can engender widespread public distrust that persists for decades.
impede	impede progress; impede development; impede access to	Bureaucratic inefficiency continues to impede the delivery of essential services to rural populations.
facilitate	facilitate access to; facilitate communication; facilitate growth	Digital payment infrastructure has facilitated economic participation for millions of previously unbanked citizens.
undermine	undermine confidence; undermine stability; undermine the rule of law	Persistent corruption in the judiciary fundamentally undermines the rule of law and investor confidence.
reinforce	reinforce stereotypes; reinforce inequality; reinforce a pattern	Media representations that consistently reinforce gender stereotypes contribute to occupational segregation in high-paying sectors.

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類別三：讓步與對比（10 個）

這些字讓你提出反方論點然後反駁——是 7 分以上文章該有的結構。掌握讓步用語，就釋出了「我會深入思考」的訊號。

字／片語	關鍵搭配	範例句
notwithstanding	notwithstanding these concerns; notwithstanding the evidence	Notwithstanding the environmental benefits of nuclear energy, public opposition to new plant construction remains substantial.
albeit	albeit slowly; albeit with limitations; albeit imperfect	The policy has produced measurable improvements, albeit at a pace that falls short of the government's original projections.
nevertheless	nevertheless, it must be acknowledged; nevertheless, the evidence suggests	The costs of implementation are considerable; nevertheless, the long-term economic returns are projected to exceed the initial outlay.
conversely	conversely, one might argue; conversely, in developing nations	Stricter immigration controls may reduce unskilled labor supply; conversely, they can drive wages upward for domestic workers.
in spite of	in spite of the evidence; in spite of widespread opposition	In spite of extensive public education campaigns, smoking rates among adolescents have remained persistently high in several regions.
granted that	granted that this is the case; granted that challenges exist	Granted that renewable energy technology remains expensive, the trajectory of cost reduction makes long-term investment clearly viable.
while acknowledging	while acknowledging the limitations; while acknowledging that	While acknowledging the short-term economic disruption that automation causes, its productivity gains are difficult to overstate.
on balance	on balance, the evidence suggests; on balance, this approach	On balance, the benefits of globalized trade outweigh the documented risks of domestic industry displacement.
by the same token	by the same token, one cannot	By the same token, a society that restricts individual freedoms in the name of security risks eroding the values it seeks to protect.
irrespective of	irrespective of income; irrespective of political affiliation	Quality healthcare should be accessible to all citizens, irrespective of their socioeconomic background or geographic location.

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類別四：比較與相似（10 個）

比較用語在討論題、評估多個選項的文章裡最有用。它顯示分析思考，而不是單純斷言。

字／片語	關鍵搭配	範例句
analogous to	analogous to the situation in; directly analogous to	The current debate over artificial intelligence regulation is analogous to the early discussions surrounding internet governance in the 1990s.
akin to	akin to; in many ways akin to	Treating education purely as an economic investment is, in many ways, akin to reducing human beings to units of productive output.
parallel to	run parallel to; in a development parallel to	The decline of manufacturing employment in Europe runs parallel to the structural economic shifts observed in the United States during the same period.
corresponds to	corresponds to a pattern; corresponds to the findings of	The observed decline in civic participation corresponds to rising levels of political disillusionment documented in longitudinal surveys.
resembles	closely resembles; resembles the approach taken in	The proposed regulatory framework closely resembles the model adopted by Nordic nations, where outcomes have been demonstrably positive.
comparable to	broadly comparable to; not comparable to	The scale of the current refugee crisis is broadly comparable to post-World War II displacement, demanding an equally coordinated international response.
mirrors	mirrors the trend in; mirrors the pattern	The rise of nationalist sentiment in Western Europe mirrors trends observed in several emerging economies navigating rapid social change.
echoes	echoes earlier debates; echoes the findings	This argument echoes the concerns raised by development economists throughout the 1990s regarding the conditions attached to IMF lending.
in line with	in line with the evidence; in line with international standards	The proposed carbon pricing mechanism is broadly in line with the approaches already implemented in Canada and several EU member states.
consistent with	consistent with the data; consistent with prior research	These findings are consistent with a substantial body of research indicating that early childhood nutrition has lifelong cognitive consequences.

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類別五：資料與證據（10 個）

當你在 Task 2 引用研究、統計或例子時，這些動詞讓你精準帶出證據。它們把扁平的 "this shows that" 換成能標示證據在你論證中扮演什麼角色的語言。

字	關鍵搭配	範例句
substantiate	substantiate the claim that; substantiate this view	A growing body of epidemiological research substantiates the claim that air pollution is a significant contributor to cardiovascular disease.
corroborate	corroborate the findings; corroborate this argument	Data from multiple independent studies corroborate the view that class size reductions produce meaningful gains in primary school literacy.
contradict	contradict the assumption that; contradict prior research	The longitudinal evidence sharply contradicts the assumption that economic growth inevitably reduces social inequality.
refute	refute the notion; refute the claim	A comprehensive meta-analysis effectively refutes the widely held notion that multitasking improves productivity.
exemplify	exemplify the trend; exemplify this problem	Finland's education system exemplifies the principle that teacher autonomy and professional trust produce superior learning outcomes.
illustrate	illustrate the point; illustrate the complexity of	The case of Singapore illustrates how a small nation can achieve remarkable economic development through strategic investment in human capital.
demonstrate	demonstrate that; clearly demonstrate; demonstrate the effectiveness of	Decades of public health research demonstrate that tobacco taxation is among the most cost-effective tools for reducing smoking prevalence.
underscore	underscore the need for; underscore the importance of	These statistics underscore the urgent need for coordinated international action on ocean plastic pollution.
highlight	highlight the disparity between; highlight a critical weakness	The gender pay gap data highlight a persistent structural disparity that cannot be adequately explained by differences in qualifications or experience.
point to	point to evidence of; point to a pattern	Recent migration data point to a fundamental mismatch between where jobs are being created and where the available workforce is located.

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類別六：問題與解決（10 個）

問題─解決題是 Task 2 最常見題型之一。準備好一組精準動詞，能同時辨識問題與帶出解決方案，至關重要。

字	關鍵搭配	範例句
address	address the root cause of; directly address; fail to address	Any effective policy must address the root causes of homelessness rather than simply managing its visible symptoms.
tackle	tackle the problem of; tackle inequality; tackle corruption	The most effective way to tackle childhood obesity is through a combination of school nutrition standards and reduced food marketing to minors.
redress	redress the imbalance; redress historical injustice; redress inequality	Affirmative action policies were introduced specifically to redress decades of systemic discrimination in higher education and employment.
remedy	remedy the situation; remedy a deficiency; provide a remedy for	Increased investment in rural healthcare infrastructure is the most direct way to remedy the stark urban-rural disparity in medical outcomes.
alleviate	alleviate the burden; alleviate pressure on; alleviate suffering	Flexible working arrangements can significantly alleviate the burden on working parents struggling to balance professional and domestic responsibilities.
counter	counter this trend; counter the effects of; effectively counter	An evidence-based media literacy curriculum can help students counter the proliferation of misinformation on social media platforms.
offset	offset the negative effects of; offset carbon emissions; partially offset	The economic disruption caused by automation can be partially offset through retraining programs and targeted social protection measures.
curb	curb emissions; curb spending; curb the rise of	A combination of congestion charges and investment in public transport is the most effective strategy to curb urban vehicle pollution.
combat	combat climate change; combat poverty; combat discrimination	International cooperation is essential to combat the trafficking of persons, which exploits vulnerabilities across borders and jurisdictions.
resolve	resolve the conflict; resolve the tension between; definitively resolve	The tension between economic development and environmental protection cannot be resolved through market forces alone; regulatory intervention is necessary.

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類別七：頻率與程度（10 個）

這些副詞讓你的主張更精準。與其寫 "this happens a lot" 或 "this is very common"，用這些字標示你描述現象的精準程度或頻率。

字	用法提醒	範例句
predominantly	用來表示「大部分但非全部」。搭配：predominantly urban、predominantly male。	Youth unemployment in the region is predominantly concentrated in rural communities with limited access to secondary education.
invariably	表示「無例外的總是」。只有當這個關係真的全部成立時才用。	Countries that invest heavily in early childhood education invariably outperform their peers on long-term economic productivity metrics.
pervasively	描述某事散布整個系統或文化。搭配：pervasively embedded、pervasively present。	Unconscious bias is pervasively embedded in recruitment processes, even in organizations with formal diversity commitments.
disproportionately	談不平等的論證必備；表示影響不與群體規模成比例。	Environmental pollution disproportionately affects low-income communities that lack the political influence to resist industrial development nearby.
marginally	表示「很小幅度」。用在影響真實但有限的細膩主張。	Raising the minimum wage by a small percentage improves worker retention marginally but has a negligible effect on overall employment levels.
intermittently	表示「不規律間隔；非連續」。搭配：intermittently available、intermittently enforced。	Environmental regulations are intermittently enforced in regions where local governments lack the technical capacity for consistent monitoring.
substantially	表示「相當大幅地」。在許多學術語境比 "significantly" 更強。	Government subsidies have substantially reduced the cost of solar panel installation, making renewable energy viable for middle-income households.
considerably	與 substantially 類似；多數情境可互換以避免重複。	Urban air quality has improved considerably in cities that introduced low-emission zones combined with expanded public transport networks.
markedly	表示「明顯可察」。用在對比兩個時期或兩個群體很好用。	Life expectancy in developing nations has improved markedly over the past three decades, largely due to advances in vaccine distribution.
negligibly	表示「微不足道」。用來主張反方論點的影響小到不足以納入考量。	The proposed carbon tax would increase household energy costs by a negligible amount while generating substantial revenue for clean energy investment.

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怎麼真的學會這些字（不只是背）

讀完一份字表不等於詞彙習得，那是詞彙習得的第一步而已。這個區別對 IELTS 備考特別重要，因為考官不是測你看過某個字沒，而是測你能不能在時間壓力下正確調用。

搭配的問題

IELTS Lexical Resource 備考最重要的單一概念就是搭配——在英文裡自然會一起出現的字。

想想看："exacerbate" 和 "worsen" 是近義詞，但它們在句子裡行為不同。你說 "worsen the problem"、"worsen relations"、"worsen conditions"，全都成立。但用 "exacerbate"："exacerbate the problem" 成立、"exacerbate relations" 對母語人士聽起來不自然（要說 "strain relations"）、"exacerbate conditions" 成立。知道意思還不夠，知道它接什麼名詞、不接什麼，才是 6.5 跟 7 之間的分水嶺。

這就是為什麼用孤立字卡學字不夠。每個字都要在句子裡學，連同它最常見的名詞和動詞夥伴一起學。

關於搭配知識怎麼從基礎詞彙建立起來，可參考 IELTS 7 分以上完整詞彙指南。

三步驟練習法

步驟 1：在範例句裡讀這個字。 本文每個字都附一句。讀兩遍。不要只看目標字，注意它前後的字。

步驟 2：找出並背下核心搭配。 以 "precipitate" 為例：寫下 "precipitate a crisis"、"precipitate change"、"precipitate a collapse"。這些就是重要的模式。

步驟 3：自己用這個字在 IELTS 情境裡造一句。 自選一個主題（氣候變遷、教育、科技、城市化），用你已經找出的搭配寫一句。這是大多數學生跳過的步驟，也是唯一能把字從被動辨認推進主動產出的步驟。

文章限制法

IELTS 寫作練習中對詞彙最有效的技巧之一是 文章限制法：寫一篇完整 Task 2，並設規則：每個連接詞、每個立場動詞、每個因果動詞都必須來自這份清單。不能寫 "I think"，不能寫 "because of"。逼自己寫 "I would contend"、"is largely attributed to"。這種限制造成的摩擦會強迫深度處理，加速留存。

Rhythm Word 整合

本文的 80 個字都可以在 Rhythm Word 裡用 IELTS 學術語體寫成的個人化例句學習。App 的 FSRS 間隔重複系統會在你最可能遺忘的時間點安排複習——不早一天、不晚一週。這個節奏下每天學 6 個字，所有 80 個字大約兩週內就會進入穩定的長期記憶。

今天就把這 80 個 IELTS Task 2 字載進 Rhythm Word。 IELTS 語體的個人化例句、內建 FSRS 間隔重複。目標字以粗體顯示（已記住）；點一下標橘色（模糊）或紅色（遺忘），誠實自評。 在 App Store 下載（免費下載）

關於間隔重複為什麼勝過傳統複習，請讀 主動回想與詞彙：研究怎麼說。

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6 分 vs. 7 分——前後改寫對照

看精準詞彙影響最直接的方式，是比較同一個論證的兩個版本。題目：政府是否應補助大眾運輸？

6 分版本

"I think public transportation is important and governments should put money into it because it helps the environment and reduces traffic jams. Also, many people who don't have cars need to get to work, so it is very useful for them. Nowadays, a lot of cities have problems with too many cars, so this is a big problem that governments need to think about."

這版的詞彙問題：

• "important"：只出現一次，但底層詞彙範圍非常有限
• "put money into"：非正式語體，學術寫作不合適
• "helps"：含糊，無具體性
• "traffic jams"：對的，但 IELTS 寫作裡用爛了
• "Nowadays"：考官警示旗（顯示範圍有限）
• "a lot of"：非正式且不精準
• "big problem"：基礎程度詞彙
• "think about"：含糊的片語動詞

7 分改寫

"I would contend that governments bear a fundamental responsibility to invest in public transportation infrastructure. By mitigating traffic congestion and catalyzing a shift toward sustainable commuting patterns, such investments would not only address pressing environmental concerns but also engender long-term economic benefits for urban populations who currently rely disproportionately on private vehicle use. Notwithstanding the considerable upfront costs, the evidence from cities such as Singapore and Amsterdam demonstrates that well-funded transit networks substantially reduce per-capita carbon emissions while fostering greater social equity in urban mobility."

詞彙改善逐字對照：

原文	替換	類別
I think	I would contend	立場（類別 1）
helps the environment / reduces	mitigating, address	因果、問題─解決（類別 2、6）
leads to change	catalyzing	因果（類別 2）
creates benefits	engender	因果（類別 2）
especially	disproportionately	頻率／程度（類別 7）
even though it costs a lot	notwithstanding the considerable upfront costs	讓步（類別 3）
shows	demonstrates	證據（類別 5）
a lot less	substantially	頻率／程度（類別 7）
helps equality	fostering greater social equity	因果（類別 2）

7 分版本不只是用了難一點的字。它用了更精準、語體對位、且與搭配組合正確的字。

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要避開的：扣分字

下面五個字並非禁字。考官不會因為你用一次就扣分。問題是當它們反覆出現時，會向考官標示你的詞彙範圍有限，當有更精準替代品時你卻退回基礎詞彙。

1. "Important"（和 "importance"）

為什麼會被標記： "Important" 是英文最常見的十個形容詞之一，本身沒有精準意義，依語境至少可由六個更具體的替代品替換。

替代字：

• significant（可衡量影響）
• paramount（最高優先，無人能上）
• consequential（產生顯著後續效應）
• pivotal（轉捩點）
• critical（必要；缺了就失敗）
• indispensable（拿掉系統就崩）

2. "Good"（和 "bad"）

為什麼會被標記： 這是評價字，不帶分析資訊。IELTS 文章的每個主張都該說明為什麼某事是好或壞。

"good" 的替代字：

• beneficial（產生可衡量的好處）
• advantageous（創造策略或實務優勢）
• commendable（值得認可或讚許）
• constructive（朝正向結果建構）
• favorable（條件對你有利）

"bad" 的替代字：

• detrimental（造成可衡量傷害）
• counterproductive（與目標背道而馳）
• deleterious（造成嚴重傷害，常用於學術與醫療）

3. "A lot of"

為什麼會被標記： "A lot of" 是非正式語體。在學術寫作裡會傳達出「你在用講話的方式寫，而不是用正式文章的方式組合」。

替代字：

• a substantial number of（可數名詞）
• a considerable proportion of（不可數或比例）
• a significant volume of（量）
• an overwhelming majority of（暗示「大多數」）
• a growing body of（研究、證據）

4. "Nowadays"

為什麼會被標記： "Nowadays" 每年出現在數千篇 IELTS 文章開頭。考官回報這是公式化、低範圍開場最可靠的單一訊號。它非正式、時間上又含糊。

替代字：

• in contemporary society
• in the current era
• in recent decades
• in the present day
• at present
• in the twenty-first century

5. "In conclusion"

為什麼會被標記： "In conclusion" 在 IELTS 寫作裡公式化到沒任何附加價值；考官一場閱卷讀幾十次，等同雜訊。它沒錯，只是浪費了展示範圍的機會。

替代字：

• To conclude,
• In summary,
• Upon reflection,
• To summarize the key arguments,
• Drawing these threads together,

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5 個 IELTS 寫作 Task 2 詞彙問題回答

1. IELTS 7 分 Lexical Resource 需要什麼樣的詞彙範圍？

7 分的描述標明「彈性與精準」的詞彙使用。實務上考官在找的，是能在文章裡變化選詞——每個因果關係用不同動詞、每段用不同立場動詞——而不是反覆使用同樣的功能字。沒有單一文章的官方字族數，但對高分作文的研究顯示，7 分考生通常會用到 4–6 個不同立場動詞、3–5 個不同連接副詞，並且任何一個內容字在 280 字的文章裡都不重複超過兩次。

2. 怎麼快速提升 Lexical Resource？

聚焦在 搭配，不是單字。學「exacerbate」=「worsen」只要 30 秒；學會說 "exacerbate inequality"、"exacerbate the situation"、"exacerbate tensions"，並且不要說 "exacerbate an opinion"，需要真實的語境句練習。考前要快速進步，找出你考區最常出的十個題目，為每個題目建一張搭配地圖：五個該主題專用的因果動詞、三個立場表達、兩個讓步模式。

3. IELTS Task 2 該用慣用語嗎？

謹慎使用，且只有確定它帶有正式語體時才用。Task 2 是學術文章。"hit the nail on the head" 或 "at the end of the day" 太非正式，會拉低你的 Lexical Resource。較長、較正式的慣用表達（如 "serve as a double-edged sword" 或 "represent the tip of the iceberg"）可以用，但在 IELTS 寫作裡已經太常見，不再展現範圍。如果不確定某慣用語夠不夠正式，就換成精準的學術片語。

4. 考前該學多少新字？

兩百個高價值的學術搭配（連同核心名詞、動詞夥伴一起學）勝過 500 個孤立的字。IELTS 寫作詞彙不是無限——Task 2 文章重度集中在約十五個主題領域（環境、科技、教育、健康、犯罪、城市化等等）。每個主題建立 15–20 個精準、搭配完整的字庫，就涵蓋你會需要的絕大部分。深度勝於廣度。

5. 兩週內能學完並記住本文 80 個字嗎？

可以，前提是用間隔重複。每天 6 個新字，加上兩段針對已學字的複習，所有 80 個字大約兩週能進到穩定的長期記憶。關鍵要求是每段學習都包含主動產出，不只是被動讀：用每個新字在 IELTS 情境裡寫一句。把間隔重複排程和語境例句結合的 App（像 Rhythm Word）會自動處理排程，你的時間花在學，不是算複習間隔。

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下一步

6.5 跟 7 分在 Lexical Resource 上的差距，不是難字知識的差距，而是把對的字以對的搭配精準、自信調用的差距。本清單裡的每個字都能補起這個差距，但前提是考前你用每個字練過完整句子。

今天可以做的三件事：

1. 從本清單挑一個類別。用該類別五個不同的字寫五句，全部圍繞同一個 IELTS 主題（例如氣候政策）。

2. 複習 IELTS 7 分詞彙指南，看依十五個最常見 Task 2 主題組織的完整搭配框架。

3. 把這 80 個字載進 Rhythm Word，讓 App 安排你的複習。在 App Store 下載（免費下載）。