Governments should invest more in public transport because it can reduce traffic congestion and lower carbon emissions.
政府应该在公共交通上投入更多资金，因为这可以减少交通拥堵并降低碳排放。
Although online learning offers flexibility, it cannot fully replace face-to-face education because students often need direct interaction and immediate feedback.
虽然在线学习提供了灵活性，但它不能完全取代面对面教育，因为学生通常需要直接互动和即时反馈。
This suggests that environmental policies are most effective when they combine regulation with public education.
这表明，当环境政策将监管与公众教育结合起来时，其效果最为明显。
使用场景
Usage Scenarios
提出明确立场
在 argumentative essay 的 introduction 或 body paragraph 开头，需要清楚表达自己的 claim。学术写作中应避免使用过于绝对或情绪化的表达，而应使用 measured language，如 largely, tend to, in many cases 等，使观点更客观。
In many cases, stricter environmental regulations are necessary to ensure sustainable economic development.
在许多情况下，更严格的环境法规对于确保可持续经济发展是必要的。
It is reasonable to argue that technology has transformed the way students access information.
可以合理地认为，科技已经改变了学生获取信息的方式。
解释原因
提出观点后，需要说明 why。常用结构包括 because, since, as, due to the fact that, this is mainly because。PTE 写作中，原因解释要直接，不宜写过长从句导致语法错误。
This is mainly because urban residents rely heavily on private vehicles when public transport is unreliable.
这主要是因为当公共交通不可靠时，城市居民会严重依赖私家车。
The policy may fail because it does not address the underlying causes of unemployment.
该政策可能会失败，因为它没有解决失业的根本原因。
提供证据或例子
证据可以是 research findings、statistics、real-world examples 或 general observations。考试写作中不一定需要真实数据，但例子必须与观点直接相关，不能泛泛而谈。
For example, cities that have expanded metro systems often experience a gradual decline in car dependency.
例如，扩建地铁系统的城市通常会逐渐减少对汽车的依赖。
Research in educational psychology has shown that timely feedback can significantly improve learning outcomes.
教育心理学研究表明，及时反馈可以显著改善学习效果。
表达结果和影响
论证不能停留在原因层面，还要说明结果或影响。常用表达包括 as a result, consequently, therefore, this may lead to, this can contribute to。注意 therefore 和 because 不能在同一个简单句中重复连接。
As a result, students may become more independent and better prepared for higher education.
因此，学生可能会变得更加独立，并为高等教育做好更充分的准备。
This can contribute to a more equitable distribution of educational resources.
这有助于教育资源更加公平地分配。
承认反方观点
高分 argumentative writing 通常会承认 opposing views。承认反方不是削弱立场，而是展示 critical thinking。常用结构包括 although, while, it is true that, admittedly, some people argue that。
Admittedly, banning private cars in city centres may inconvenience some commuters.
不可否认，禁止私家车进入市中心可能会给一些通勤者带来不便。
While social media can spread misinformation, it also enables people to access news rapidly.
虽然社交媒体可能传播错误信息，但它也使人们能够快速获取新闻。
反驳对立观点
Refutation 用于说明反方观点的局限。常用结构包括 however, nevertheless, this argument overlooks, this view fails to consider, the problem with this argument is that。反驳时应保持学术语气，避免使用 completely wrong 或 nonsense 这类情绪化表达。
However, this argument overlooks the long-term economic benefits of a healthier workforce.
然而，这一观点忽视了更健康的劳动力所带来的长期经济效益。
This view fails to consider that disadvantaged students may not have equal access to digital devices.
这一观点没有考虑到弱势学生可能无法平等地获得数字设备。
常见错误
Common Mistakes
Incorrect
❌ Because public transport is cheap, so people should use it more.
Correct
✅ Because public transport is cheap, people should use it more. / Public transport is cheap, so people should use it more.
中文中常说“因为……所以……”，但英文中 because 和 so 通常不能同时连接同一个主从关系。考试写作中应选择一个连接方式，避免 double conjunction。
Incorrect
❌ I think government must solve this problem because it is very bad.
Correct
✅ Governments should address this problem because it has serious social and economic consequences.
原句过于口语化，very bad 缺乏学术具体性。Academic Writing 中应使用更精确的名词短语，如 serious social and economic consequences。
Incorrect
❌ Some people think online education is good. But I disagree.
Correct
✅ Although online education provides flexibility, it is unlikely to replace traditional classrooms entirely.
原句逻辑过短，缺少 concession 和 reason。使用 although 可以先承认反方合理性，再表达更成熟的判断。
Incorrect
❌ This policy can make people have better life.
Correct
✅ This policy can improve people’s quality of life.
make people have better life 是中式英语。学术写作中常用 improve people’s quality of life，注意 life 在此结构中通常需要所有格 people’s 和固定搭配 quality of life。
Incorrect
❌ The reason is because many students lack motivation.
Correct
✅ The reason is that many students lack motivation. / This is because many students lack motivation.
The reason is because 属于常见冗余表达。标准学术英语中应使用 The reason is that，或直接使用 This is because。
Incorrect
❌ Everyone knows that technology is important.
Correct
✅ It is widely acknowledged that technology plays an important role in modern education.
Everyone knows that 过于口语化且绝对。学术写作应使用客观表达，如 It is widely acknowledged that，并用 plays an important role 替代简单的 is important。
Incorrect
❌ If children use phones, they will be bad at study.
Correct
✅ Excessive smartphone use may have a negative impact on children’s academic performance.
原句存在表达不自然和过度绝对的问题。学术表达中常用 excessive, may, have a negative impact on, academic performance 来提高准确性。
Incorrect
❌ This example can prove my opinion.
Correct
✅ This example supports the argument that early intervention can reduce educational inequality.
prove my opinion 过于主观，也不符合学术写作语气。更自然的表达是 supports the argument that，后接完整观点。
学术表达
Academic Patterns
It can be argued that + clause
可以认为……
There is a strong case for + noun / gerund
有充分理由支持……
This argument is based on the assumption that + clause
这一论点建立在……的假设之上
The main reason for this is that + clause
其主要原因是……
One possible explanation is that + clause
一个可能的解释是……
This may lead to + noun phrase
这可能导致……
This can have a significant impact on + noun phrase
这可能对……产生重大影响
Although + clause, main clause
虽然……，但是……
While it is true that + clause, it is also important to note that + clause
虽然……是事实，但同样重要的是要注意……
This view fails to consider that + clause
这一观点没有考虑到……
The evidence suggests that + clause
证据表明……
From a broader perspective, + clause
从更广泛的角度来看，……
A more balanced approach would be to + verb
一种更平衡的方法是……
This does not necessarily mean that + clause
这并不一定意味着……
The long-term implications of this are considerable.
这所带来的长期影响是相当显著的。
PTE 高频应用
PTE Usage
Argumentative structures 在 PTE Academic 中非常重要，尤其影响 Written Discourse、Grammar、Vocabulary 和 Content 分数。PTE Essay 需要考生在短时间内形成清晰立场，并用原因、例子和结果支撑观点。Summarize Written Text 虽然不是完整议论文，但也需要识别原文中的 claim、cause、contrast 和 implication。口语项目如 Retell Lecture 和 Summarize Spoken Text 中，考生也常需要用 This suggests that, The speaker argues that, However, the issue is that 等结构概括论点关系。
如果题目要求 discuss both views，应至少使用一个 concession 结构，例如 While some people argue that..., this view fails to consider...。
不要频繁重复 I think。学术写作中可使用 It can be argued that, This suggests that, The evidence indicates that。
PTE 写作中复杂句应服务于逻辑，而不是单纯追求长度。若一个句子超过三层从句，错误风险会明显增加。
在反驳时避免情绪化词汇，如 stupid, wrong, terrible。应使用 overlooks, fails to consider, is limited by 等学术表达。
主体段结尾最好写一句 implication，说明该观点带来的结果或意义，这有助于提升论证完整度。
AI 练习题
Practice Questions
将句子改写得更学术：I think online learning is good because students can study anywhere.
答案：Online learning offers considerable flexibility because it allows students to access educational resources regardless of location. 中文：在线学习提供了相当大的灵活性，因为它使学生能够不受地点限制地获取教育资源。
用 although 写一个让步论证句，主题是 social media。
答案：Although social media can facilitate communication, it may also contribute to the spread of misinformation. 中文：虽然社交媒体可以促进交流，但它也可能导致错误信息的传播。
纠正句子：Because public libraries are useful, so governments should fund them.
答案：Because public libraries are useful, governments should fund them. / Public libraries are useful, so governments should fund them. 中文：因为公共图书馆很有用，政府应该为其提供资金。
用 This view fails to consider that... 反驳观点：University education should be completely online.
答案：This view fails to consider that many students benefit from face-to-face interaction, practical training and immediate feedback. 中文：这一观点没有考虑到许多学生会从面对面互动、实践训练和即时反馈中受益。
完成句子：The main reason for this is that...
答案：The main reason for this is that many low-income families cannot afford private educational resources. 中文：其主要原因是许多低收入家庭负担不起私人教育资源。
用 result structure 改写：More people use private cars. Air pollution becomes worse.
答案：As more people rely on private cars, air pollution is likely to become more severe. 中文：随着更多人依赖私家车，空气污染可能会变得更加严重。
判断并修改不自然表达：This example can prove my opinion.
答案：This example supports the argument that effective public transport can reduce traffic congestion. 中文：这个例子支持了有效公共交通可以减少交通拥堵这一论点。
答案：Environmental education should be introduced at an early age because it can shape children’s habits and contribute to more sustainable behaviour in the long term. 中文：环境教育应该在儿童早期引入，因为它可以塑造孩子的习惯，并从长远来看促进更可持续的行为。
