Series ID: EDKS-BASIC-ZH-0068 · Lesson No.068 · B2 Discussion, Argument and Evidence

B2 Discussion, Argument and Evidence | B2 讨论、论证与证据

A strong argument does more than state an opinion. It shows why the claim deserves belief, how strong the evidence is, what alternatives exist, and where the conclusion should stop.

B2 discussion requires connected reasoning under disagreement. The goal is not to “win” every discussion. It is to represent the issue accurately, respond to evidence and keep the language proportional to what is actually known.

这一课训练真正的 B2 讨论：主张、证据、解释、反方、回应、限定与结论。

Chinese Edition Hub · 中文版入口 · ← Lesson No.067 · Paraphrasing Without Changing Meaning

The argument map | 论证地图

claim
reason
evidence
warrant/explanation
counterargument
response
qualification
conclusion

1. Claim | 主张

A claim is the position you want the listener or reader to accept.

Short daily practice is more sustainable for many learners.

2. Reason | 理由

because it is easier to fit into a busy schedule.

3. Evidence | 证据

Evidence may include:

data
examples
observations
source findings
documented experience

4. Warrant / explanation | 证据为什么支持主张

Do not leave evidence sitting alone. Explain the bridge.

If practice is easier to fit into a schedule, learners may be more likely to continue it consistently.

5. Example is not universal proof | 例子不是普遍证明

One learner’s success can illustrate a claim but cannot prove it for everyone.

6. Data scope | 数据范围

Ask:

How many people?
Which group?
What task?
How long?
Under what conditions?

7. Strong claim needs strong evidence | 强主张需要强证据

always, proves, guarantees, everyone require much stronger support than may, suggests, some, often.

8. Correlation vs causation | 相关 vs 因果

If two things change together, one may not have caused the other.

9. Alternative explanation | 替代解释

Ask: What else could explain the same evidence?

10. Assumption | 隐含前提

An argument often depends on an unstated assumption.

11. Identify the assumption | 找隐含前提

Online lessons save travel time, so they are better.

Possible assumption: saving travel time is the most important criterion.

12. Criteria matter | 标准很重要

“Better” requires a criterion:

cheaper
faster
more flexible
more effective for a specific goal

13. Counterargument | 反方观点

Represent a reasonable opposing position:

However, some learners may benefit from longer sessions when tasks require sustained concentration.

14. Fair representation | 公平呈现反方

Do not weaken the other side into an obviously bad argument.

15. Straw man | 稻草人错误

Misrepresenting the other view makes your response easier but your argument weaker.

16. Response | 回应反方

You can:

agree partly
limit its scope
show different evidence
change the criterion
accept the point and revise your claim

17. Partial agreement | 部分同意

That is true for extended writing tasks, although it does not remove the value of short daily retrieval practice.

18. Qualification | 限定结论

for many learners
in this context
under these conditions
to some extent

19. Revision is strength | 修改立场不是失败

If stronger evidence changes your position, update the claim.

20. Evidence ladder | 证据阶梯

weak	single anecdote / unsupported impression
moderate	several consistent examples / limited data
stronger	relevant, well-designed, replicated evidence

Exact strength depends on the question.

21. Source quality | 来源质量

Ask:

Who produced it?
What expertise?
What method?
What incentives?
Is it current enough?

22. Authority alone is not enough | 权威也要看方法

A prestigious source can still make a weak claim outside its evidence.

23. Recency | 时效性

For fast-changing topics, older evidence may no longer describe the current situation.

24. Relevance | 相关性

Good evidence for one population or task may not generalise to another.

25. Accuracy before rhetoric | 准确优先于漂亮表达

Do not make a sentence sound stronger than the evidence justifies.

26. Stance phrases | 立场表达

The evidence suggests…
This supports the view that…
One possible explanation is…
This does not necessarily mean…

27. Challenge evidence politely | 礼貌挑战证据

What evidence supports that conclusion?
Does the source apply to this context?
Could there be another explanation?

28. Challenge scope | 挑战范围

Does that apply to all learners?
Is that true only under certain conditions?

29. Ask for definition | 先定义关键词

What do we mean by “effective” here?
How are we defining “better”?

30. Clarify criterion before disagreement | 先确认标准再争论

Two people may appear to disagree while using different criteria.

31. Discussion structure | 讨论结构

state position
give evidence
explain relevance
listen to challenge
respond
qualify if needed
summarise

32. Build on another person’s point | 接对方观点

I agree that cost matters. I’d add that reliability changes the decision when timing is critical.

33. Disagree with idea, not person | 针对观点，不针对人

I see the evidence differently.
I’m not convinced that the conclusion follows.

34. Separate certainty from confidence of delivery | 说得自信 ≠ 证据确定

A confident voice does not make weak evidence stronger.

35. Separate emotion from evidence | 情绪与证据分开

Strong feelings can matter personally but do not automatically establish a general claim.

36. Use experience honestly | 个人经验怎么用

In my experience… signals that the evidence is personal and limited.

37. Source synthesis | 来源综合

Organise by issue:

Both sources agree…
Source A emphasises…, while Source B…
The difference may reflect…

38. Do not count sources instead of weighing evidence | 不是“来源多就赢”

Three weak sources do not necessarily outweigh one strong relevant source.

39. Conclusion strength | 结论强度

Use a conclusion no stronger than the evidence.

40. Balanced conclusion | 平衡结论

Overall, short daily practice appears useful for maintaining consistency, while longer sessions remain important for tasks requiring sustained attention.

41. Policy/recommendation language | 建议语言

Move from evidence to action carefully:

This suggests that learners could…
A reasonable approach may be…

42. Recommendation needs trade-offs | 建议要考虑取舍

State costs, limits and alternatives where relevant.

43. Mandarin transfer: 观点可以省主语但英语来源要清楚 | 来源归属

In longer English argument, explicitly mark whether a claim belongs to you, another speaker or a source.

44. Mandarin transfer: 一定/肯定 | certainty calibration

Avoid translating strong certainty automatically when evidence is limited.

45. Mandarin transfer: 但是/所以 | connector precision

Choose contrast/result/cause based on logical relation rather than habitual pairing.

46. Reading practice A | 阅读 A

A survey of 120 adult learners found that most preferred shorter weekday study sessions. This finding suggests that convenience may influence study habits. However, the survey measured preference rather than learning outcomes, so it does not prove that short sessions produce better results.

What is the evidence?
What does it support?
What does it not support?

47. Reading practice B | 阅读 B

One company reported higher productivity after introducing remote work. However, the change happened at the same time as a new software system and a reduction in meeting hours. It is therefore difficult to know how much of the improvement was caused by remote work alone.

Identify correlation, alternative explanations and a cautious conclusion.

48. Speaking practice: evidence challenge | 证据挑战

Partner gives a claim. Ask three questions:

What evidence?
What scope?
What alternative explanation?

49. Writing practice: argument paragraph | 论证段

Write:

claim
evidence/example
explanation
counterpoint
qualification

50. Error clinic | 常见问题

Problem	Repair
One example proves everything.	Limit scope.
Correlation becomes cause.	Add alternative explanations.
Counterargument is weak caricature.	Represent fairly.
Conclusion stronger than evidence.	Use calibrated stance.
Personal attack replaces response.	Return to claim/evidence.

51. First weak link diagnosis | 第一个卡点诊断

opinion lacks support → evidence problem.
evidence is present but relevance unclear → warrant problem.
counterargument feels unfair → representation problem.
claim too strong → stance calibration.
discussion collapses under challenge → responsive reasoning.

52. Retrieval lab | 提取练习

证据表明…… → ______
这并不一定意味着…… → ______
另一个可能解释是…… → ______
这个结论适用于所有人吗？ → ______

Suggested answers: The evidence suggests… / This does not necessarily mean… / Another possible explanation is… / Does this conclusion apply to everyone?

53. Seven-day training cycle | 七天训练

Day 1	claim/reason/evidence	主张证据
Day 2	warrant/assumption	解释前提
Day 3	counterargument	反方
Day 4	scope/causality	范围因果
Day 5	source evaluation	来源
Day 6	discussion challenge	回应
Day 7	12-minute evidence discussion	综合

54. Self-test | 自测

Build claim-evidence-warrant chains; detect unsupported causality; identify assumptions; represent counterarguments fairly; qualify conclusions; evaluate source relevance and scope; sustain a reasoned discussion under challenge.

55. For parents and teachers | 给家长和老师

Reward revision when evidence changes the learner’s conclusion.

Separate language fluency from argument quality during feedback.

For Mandarin speakers, keep source attribution, scope words and certainty markers visible throughout longer discussion.

56. What Lessons 065–068 add | 第六十五至六十八课增加了什么？

Lesson	New control
065	mixed conditional time relationships
066	advanced modal stance and force
067	meaning-preserving paraphrase
068	B2 argument, evidence and productive disagreement

57. Final real-world challenge | 最终真实任务

Read two short sources.
Map each source’s claim and evidence.
Identify one assumption.
Identify one alternative explanation.
Write a 120-word synthesis.
State your position.
Give evidence and warrant.
Represent one counterargument fairly.
Qualify the conclusion.
Hold a 12-minute discussion and revise your position if stronger evidence requires it.

Next natural nodes | 下一批自然节点

Lesson No.069 · Advanced Relative Clauses and Reduced Clauses · 高级关系从句与简化从句
Lesson No.070 · Nominalisation and Information Density · 名词化与信息密度
Lesson No.071 · Listening to Implication, Attitude and Discourse · 听懂暗示、态度与篇章结构
Lesson No.072 · B2 Reading and Writing Performance · B2 阅读写作表现

Back to Chinese Edition Hub · 返回中文版入口

Reference floor: British Council B2 Upper-intermediate · British Council LearnEnglish.

Small Group Tutorials

How to Learn Basic English (Chinese Edition) | Lesson No.068 | B2 Discussion, Argument and Evidence | B2 讨论、论证与证据