背景知識
Phase 2 — Discussion Essay
今日は土曜日。Writing Task 2(Discussion Essay)に取り組みます。IELTS Academic Writing Task 2 の配点は Writing 全体の 67% を占める最重要セクションです。
今日のテーマ: 都市緑地 vs 経済開発
急速な都市化が進む世界では、限られた土地をどう使うかが大きな課題です。公園や庭園などの緑地を保護すべきか、それとも経済開発・インフラ整備を優先すべきか。Environment / Urban Planning / Society カテゴリで頻出のトピックです。
Phase 2 では Discussion Essay("Discuss both views and give your own opinion")形式を練習します。両方の立場を公平に示しつつ、最後に自分の意見を明確に述べます。
急速な都市化が進む世界では、限られた土地をどう使うかが大きな課題です。公園や庭園などの緑地を保護すべきか、それとも経済開発・インフラ整備を優先すべきか。Environment / Urban Planning / Society カテゴリで頻出のトピックです。
Phase 2 では Discussion Essay("Discuss both views and give your own opinion")形式を練習します。両方の立場を公平に示しつつ、最後に自分の意見を明確に述べます。
Phase 1(Opinion Essay)との違い:
| タイプ | 設問形式 | 構成の特徴 |
|---|---|---|
| Opinion Essay | "To what extent do you agree or disagree?" | 一方の立場を一貫して主張 + 反論も触れる |
| Discussion Essay | "Discuss both views and give your own opinion." | 両方の立場を公平に提示 → 自分の意見を最後に述べる |
Writing Task 2 Band Descriptor(4軸)
| 軸 | 略称 | 評価内容 | Band 6.0の目安 |
|---|---|---|---|
| Task Response | TR | 問いへの答え方・立場の一貫性・論点の発展 | 両立場を提示し自分の意見を述べている |
| Coherence & Cohesion | CC | 段落構成・接続詞・情報の流れ | However/Furthermore などを概ね適切に使用 |
| Lexical Resource | LR | 語彙の幅・正確さ・コロケーション | AWL語彙(mitigate/sustainableなど)を使用 |
| Grammatical Range & Accuracy | GRA | 文法構造の多様性・正確さ | 関係節・譲歩節・分詞構文を使い、エラーが少ない |
Discussion Essay 構成テンプレート
Introduction (3〜4文 / 50〜60語)
→ Hook(背景2文) + 両立場の紹介 + 自分の立場の明示
Body 1 — 一方の立場(緑地保存派) (4〜5文 / 80〜90語)
→ Topic Sentence + 根拠 + 具体例(都市名・研究)+ Link back
Body 2 — もう一方の立場(経済開発派)+ 反論 (4〜5文 / 80〜90語)
→ "On the other hand,…" + 根拠 + "However,…" で反論(長期コスト視点)
Conclusion (2〜3文 / 40〜50語)
→ 両立場を一文で要約 + 自分の立場を再確認 + 政策提言
| 段落 | 目安語数 | 時間配分 |
|---|---|---|
| Introduction | 50〜60語 | 5分 |
| Body 1(緑地保存派) | 80〜90語 | 10分 |
| Body 2(経済開発派 + 反論) | 80〜90語 | 10分 |
| Conclusion | 40〜50語 | 5分 |
| 見直し | — | 10分 |
問題
⏰ 制限時間: 40分
Some people believe that urban green spaces such as parks and gardens should be preserved, while others argue that cities need to prioritise economic development and infrastructure.
Discuss both views and give your own opinion.
Write at least 250 words. You should spend about 40 minutes on this task.
Discuss both views and give your own opinion.
Write at least 250 words. You should spend about 40 minutes on this task.
下のボックスにエッセイを書いてみましょう(250語以上):
語数: 0 語 (目標: 260〜300語)
ヒント(段階的)
「都市の土地は限られている」という前提から始め、緑地保存と経済開発それぞれがなぜ重要なのかを考えましょう。
Discussion Essay では 両立場を公平に提示することが TR スコアの鍵です。どちらかに偏りすぎると減点されます。
推奨立場:「両立が可能 — 経済開発を進めながらも最低限の緑地スペースを義務化すべき」というバランス型の意見が書きやすく、政策提言も自然に加えられます。
Discussion Essay では 両立場を公平に提示することが TR スコアの鍵です。どちらかに偏りすぎると減点されます。
推奨立場:「両立が可能 — 経済開発を進めながらも最低限の緑地スペースを義務化すべき」というバランス型の意見が書きやすく、政策提言も自然に加えられます。
Body 1(緑地保存派)の論点:
- 住民の身体的・精神的健康への貢献(公園 = 心臓病リスク低減、ストレス緩和)
- 環境面:CO2吸収、ヒートアイランド現象の緩和
- 地域コミュニティの形成・生物多様性の維持
- 具体例:Singapore / Vienna の都市緑化政策の成功例
- 主張:雇用創出・GDP成長・住宅不足の解消・インフラ整備
- 反論:緑地の欠如は長期的に経済コストを増やす(医療費・不動産価値低下・人材流出)
- 研究:公園に近い不動産は資産価値が高く、税収にも貢献する
Introduction: "In rapidly growing cities, the question of how to allocate limited urban land has become increasingly contentious. While some advocate for the preservation of green spaces, others argue that economic development should take precedence. This essay will examine both perspectives before arguing that a balanced approach is most beneficial."
Body 1(緑地保存派): "Those who support urban green spaces argue that parks and gardens are essential for public health and environmental sustainability. Research has consistently shown that access to parks improves mental well-being and reduces stress-related illnesses. Furthermore, trees and vegetation help mitigate the urban heat island effect… In cities like Singapore and Vienna, the integration of green infrastructure has been credited with improving quality of life considerably."
Body 2(経済開発派 + 反論): "On the other hand, proponents of economic development argue that cities — particularly in developing nations — cannot afford to preserve open land when faced with housing shortages and inadequate infrastructure. [根拠]. However, this argument overlooks the long-term economic costs of neglecting urban greenery. Studies indicate that proximity to parks increases property values and attracts skilled workers…"
Conclusion: "In conclusion, while economic development is necessary for urban prosperity, I believe that cities should not treat green spaces as expendable. Policymakers ought to mandate minimum green-space ratios in all new developments…"
Body 1(緑地保存派): "Those who support urban green spaces argue that parks and gardens are essential for public health and environmental sustainability. Research has consistently shown that access to parks improves mental well-being and reduces stress-related illnesses. Furthermore, trees and vegetation help mitigate the urban heat island effect… In cities like Singapore and Vienna, the integration of green infrastructure has been credited with improving quality of life considerably."
Body 2(経済開発派 + 反論): "On the other hand, proponents of economic development argue that cities — particularly in developing nations — cannot afford to preserve open land when faced with housing shortages and inadequate infrastructure. [根拠]. However, this argument overlooks the long-term economic costs of neglecting urban greenery. Studies indicate that proximity to parks increases property values and attracts skilled workers…"
Conclusion: "In conclusion, while economic development is necessary for urban prosperity, I believe that cities should not treat green spaces as expendable. Policymakers ought to mandate minimum green-space ratios in all new developments…"
モデル解答(Band 7.5〜8.0相当)
TR: Task Response
CC: Coherence & Cohesion
LR: 注目語彙
GRA: 文法構造
Introduction
In rapidly growing cities around the world, urban planners face the difficult challenge of allocating limited land between green spaces and economic development. While some argue that parks and gardens are indispensable for residents' well-being, others contend that infrastructure and commercial development must take priority. This essay will discuss both perspectives before arguing that a balanced approach is the most sustainable solution.
Body 1 — 緑地保存派
Those who advocate for preserving urban green spaces point to significant benefits for both human health and the environment. Research has consistently shown that access to parks and gardens improves residents' mental well-being and reduces stress-related illnesses. Furthermore, trees and vegetation help mitigate the urban heat island effect and absorb carbon dioxide, making cities more resilient to climate change. Green spaces also foster community cohesion by providing gathering places for diverse populations. In cities like Singapore and Vienna, the integration of green infrastructure into urban planning has been credited with improving quality of life considerably.
Body 2 — 経済開発派 + 反論
On the other hand, proponents of economic development argue that cities — particularly in developing nations — cannot afford to preserve open land when faced with housing shortages, unemployment, and inadequate infrastructure. Investment in commercial districts and transportation networks generates employment and increases tax revenue, which in turn funds public services. However, this argument overlooks the long-term economic costs of neglecting urban greenery. Studies indicate that proximity to parks increases property values and attracts skilled workers and businesses, ultimately contributing to economic growth rather than detracting from it.
Conclusion
In conclusion, while economic development is necessary for urban prosperity, I believe that cities should not treat green spaces as expendable. Policymakers ought to mandate minimum green-space ratios in all new developments, ensuring that growth and environmental stewardship advance together rather than at each other's expense.
語数: 271語
モデル解答の解説
Introduction で両立場を紹介し、Conclusion で自分の意見(バランス型)を明確に述べています。
Discussion Essay の TR 黄金パターン:
Discussion Essay の TR 黄金パターン:
- Introduction: 「この essay では両立場を検討し、〜と主張する」と宣言
- Body 1: 一方の立場の主な論点 + 根拠
- Body 2: もう一方の立場 + 反論(However を使って自分の立場を示す)
- Conclusion: 両立場を一文要約 + 自分の立場の再確認 + 政策提言
Research has consistently shown that... や Studies indicate that... のように根拠を具体化することで TR スコアが上がります。
段落間の繋がりと接続詞の使い方:
- "Those who advocate for…" — Body 1 の立場を導入する定番フレーズ
- "Furthermore," — 同方向の情報を追加
- "On the other hand," — Body 2 への移行(Discussion Essay 必須)
- "However, this argument overlooks…" — 反論を導入し自分の立場を示す
- "In conclusion, while … I believe that…" — 両立場を認めながら自分の意見を締める
| 語彙・表現 | 意味 | 補足 |
|---|---|---|
| indispensable | 必要不可欠な | "essential" より格調が高い |
| mitigate the urban heat island effect | ヒートアイランド現象を緩和する | AWL: mitigate は必須語彙 |
| resilient | 回復力のある、強靭な | 環境・都市問題で頻出 |
| foster community cohesion | 地域の結束を育む | コロケーションとして覚える |
| proximity to parks | 公園への近接性 | 不動産・都市計画語彙 |
| ought to mandate | 義務付けるべきである | "should require" より格調が高い |
| environmental stewardship | 環境管理責任 | Band 7+ の高度表現 |
| at each other's expense | 互いを犠牲にして | 対立関係を簡潔に示す慣用句 |
| generates employment | 雇用を生み出す | "creates jobs" より academic |
| contentious | 論争を呼ぶ | Introduction で使いやすい語 |
注目すべき文法構造:
- 関係節: "the integration of green infrastructure into urban planning has been credited with improving quality of life" — 受動態 + with 句
- em dash を使った補足挿入: "cities — particularly in developing nations — cannot afford…" — 高度な句読点技術
- 分詞構文(結果): "ultimately contributing to economic growth rather than detracting from it" — 主節の結果を示す
- 分詞構文(目的): "ensuring that growth and environmental stewardship advance together" — 政策提言の目的を示す
- rather than + 動名詞: "rather than at each other's expense" / "rather than detracting from it" — 対比を示すフォーマル表現
重要語彙・表現(今日の必須12語)
| 表現 | 意味 | 使用例 |
|---|---|---|
| prioritise A over B | AをBより優先する | "Cities often prioritise economic growth over environmental concerns." |
| at the expense of | 〜を犠牲にして | "Rapid urbanisation has come at the expense of natural habitats." |
| mitigate | 緩和する・軽減する(AWL) | "Urban forests can mitigate the effects of air pollution." |
| sustainable development | 持続可能な開発 | "Sustainable development seeks to balance economic and environmental goals." |
| urban heat island effect | ヒートアイランド現象 | "Green spaces help reduce the urban heat island effect." |
| biodiversity | 生物多様性 | "Parks and gardens support urban biodiversity." |
| infrastructure | インフラ・基盤整備 | "Investment in infrastructure creates jobs and boosts GDP." |
| well-being | 健康・幸福度 | "Access to green spaces is linked to improved mental well-being." |
| stewardship | 管理責任・保全管理 | "Environmental stewardship must be built into urban planning." |
| mandate (v.) | 義務付ける | "Governments should mandate minimum green-space ratios in new developments." |
| proximity | 近接性・近さ | "Proximity to parks significantly increases residential property values." |
| contentious | 論争を呼ぶ・議論の余地がある | "The allocation of urban land has become increasingly contentious." |
よくある日本人のミス
| ミス | 原因 | 正しい書き方 |
|---|---|---|
| It is important to have parks. | 具体性・説得力不足 | Access to parks has been shown to reduce cardiovascular disease risk and lower stress-related healthcare costs. |
| On the contrary, some people want development. | On the contrary の誤用(単なる対比に使っている) | On the other hand, proponents of economic development argue that… |
| In my opinion, I think that both are important. | "In my opinion" と "I think" の重複 + 立場が不明確 | I believe that a balanced approach — preserving green spaces while allowing strategic development — is the most sustainable path. |
| Green space is good for people's health and mental. | mental は形容詞。名詞として使えない | Green spaces benefit both physical health and mental well-being. |
| Also, parks are important. Also, development is important. | Also の多用(CC スコア低下) | Furthermore / Moreover / In addition / Additionally を使い分ける |
| Conclusion で新しい理由を追加する | 日本語の作文習慣(結論でも論証する) | Conclusion は既出論点の要約のみ。新しいアイデアは禁止 |
| Although … , but … | although と but の重複(日本語直訳) | Although green spaces are important, cities must also invest in infrastructure. |
自己評価
語
分
次回予告:Day 054 — Review(日曜:直近の「要復習」テーマ補強)