📚 Year 8 WJEC Statistics: Speaking & Listening Exam Preparation | Year 8 WJEC 统计：口语/听力备考专项
In Year 8 WJEC Statistics, the speaking and listening component assesses how well you can explain statistical ideas out loud and understand spoken information containing data, charts or probability. This revision guide builds the vocabulary, presentation skills and active listening techniques you need to perform confidently.
在 Year 8 WJEC 统计课程中，口语与听力部分考查你口头解释统计概念以及理解包含数据、图表或概率的口语信息的能力。这份备考指南帮助你积累所需的词汇、展示技巧和主动听力方法，从而自信应考。
1. Understanding Key Statistical Terms | 理解关键统计术语
Before you can speak or listen effectively, you must be comfortable with the core statistical words. These terms appear in audio clips and you need to use them precisely in your own answers.
在你能够有效地听或说之前，你必须熟悉核心统计词汇。这些术语会出现在听力片段中，你也需要在回答中准确使用它们。
- Mean – the average, calculated by adding all values and dividing by the number of values.
- Median – the middle number when all data is put in order.
- Mode – the value that appears most often.
- Range – the difference between the largest and smallest values.
- Frequency – how many times something occurs.
- Outcome – a possible result of a probability experiment.
- 平均数 – 将所有数值相加再除以数值个数得到的平均值。
- 中位数 – 把所有数据按大小排列后位于中间的那个数。
- 众数 – 出现次数最多的数值。
- 极差 – 最大值与最小值之间的差。
- 频数 – 某事物发生的次数。
- 结果 – 概率实验的一个可能结果。
In a listening task, you might hear a phrase such as 'the median score was 7', or 'the modal choice was walking'. Recognising these words immediately gives you an advantage.
在听力任务中，你可能会听到诸如“中位数得分是7”或者“众数选择是步行”这样的表述。立刻识别出这些词汇会给你带来优势。
2. Describing Data and Charts | 描述数据与图表
Speaking assessments often ask you to describe what a graph or chart shows. Use clear, comparative language. For a bar chart, you can say: 'The tallest bar represents football, showing it is the most popular sport. The shortest bar is for hockey, meaning it is the least popular.'
口语评估经常会让你描述图形或图表所显示的信息。要使用清晰且具有比较性的语言。对于条形图，你可以说：“最高的条形代表足球，表明它是最受欢迎的运动。最矮的条形代表曲棍球，说明它最不受欢迎。”
When you talk about a line graph, describe the trend. Useful verbs include rise, increase, climb, fall, drop, decrease, level off and fluctuate. Use adjectives and adverbs to add precision – a sharp rise, a gradual decline, stayed roughly constant.
当你谈论折线图时，要描述趋势。常用的动词有上升、增加、攀升、下降、减少、趋于平稳和波动。使用形容词和副词可以增加精确度——急剧上升、逐渐下降、大致保持不变。
| English trend words | 中文趋势词 |
|---|---|
| rose sharply | 急剧上升 |
| fell gradually | 逐渐下降 |
| remained stable | 保持稳定 |
| fluctuated slightly | 小幅波动 |
Practise describing pie charts too. Always mention the largest and smallest sectors, and compare proportions using fractions or percentages.
也要练习描述饼图。始终提及占比最大和最小的扇形，并用分数或百分数比较各部分大小。
3. Calculating and Explaining Averages | 计算并解释平均数
In a speaking task, you may need to explain how you worked out an average. You must be able to talk through the steps clearly.
在口语任务中，你可能需要解释你是如何计算出平均数的。你必须能够清晰地讲解计算步骤。
Mean = Sum of all values ÷ Number of values
平均数 = 所有数值的总和 ÷ 数值的个数
dd them to get 25, then count there are 5 numbers, so the mean is 25 ÷ 5 = 5. You can say, 'The sum was 25, and there were five values, so the mean is five.'
举个例子，对于数据集 3, 5, 8, 4, 5：先把它们加起来得到25，再数出共有5个数，所以平均数就是 25 ÷ 5 = 5。你可以说：“总和是25，共有5个数值，所以平均数是5。”
5 because it appears twice. The range is 8 − 3 = 5. Practise saying these sentences aloud.
要计算中位数，先把数值排序：3, 4, 5, 5, 8。中间的值是5，所以中位数是5。众数是5，因为5出现了两次。极差是 8 − 3 = 5。大声练习说出这些句子。
4. Listening for Statistical Information | 听力理解统计信息
Listening exams will play a short recording, perhaps a news report or class survey results. Your job is to pick out key numbers and make sense of them.
听力考试会播放一段简短的录音，可能是新闻报道或班级调查结果。你的任务是提取关键数字并理解其含义。
Before the recording starts, read the questions carefully. Underline what you are listening for: a percentage, a comparison, or a specific figure. While listening, jot down numbers and units immediately – you won't remember them if you wait.
在录音开始前，仔细阅读问题。划出你要听的关键信息：百分数、比较还是具体数字。在听的过程中，立即记下数字和单位——如果等一等再记你就会忘记。
Common traps include mishearing 'fifteen' as 'fifty' or missing small words like 'decreased by' and 'increased to'. Train your ear by listening to short statistics podcasts or your teacher reading data aloud.
常见陷阱包括把“fifteen”误听成“fifty”，或者漏掉像“decreased by”和“increased to”这样的小词。通过听简短的统计播客或听老师朗读数据来训练你的耳朵。
5. Interpreting Data from Tables | 理解表格数据
Many listening and speaking tasks involve a table. You may need to answer questions about it or explain what the numbers mean.
许多听力和口语任务都会涉及表格。你可能需要回答与之相关的问题，或者解释这些数字的含义。
| Transport | Number of students | 交通方式 | 学生人数 |
|---|---|---|---|
| Walk | 18 | 步行 | 18 |
| Bus | 12 | 公交 | 12 |
| Car | 8 | 小汽车 | 8 |
| Bike | 6 | 自行车 | 6 |
If asked 'What is the most common way to travel?', you can answer: 'Walking, with 18 students. It is more than double the number who bike.' This shows you can read the table and add a comparison.
如果被问到“最常见的出行方式是什么？”，你可以回答：“步行，有18名学生。比骑自行车人数的两倍还多。”这表明你能看懂表格，并且能加上比较。
When listening, a speaker might say, 'As shown in the table, the frequency for car is 8.' You must connect the spoken word to the correct row and column quickly.
在听力中，说话人可能会说，“如表所示，小汽车的频数是8。”你必须迅速把听到的词语与正确的行和列对应起来。
6. Using Probability Language in Speech | 在口语中使用概率语言
Probability is a key topic in Year 8 statistics. You must be able to describe how likely events are using words and numbers.
概率是Year 8统计中的一个关键课题。你必须能够用词语和数字描述事件发生的可能性。
- Impossible (probability 0)
- Unlikely (probability less than ½)
- Even chance (probability ½ or 0.5)
- Likely (probability greater than ½)
- Certain (probability 1)
- 不可能（概率为0）
- 可能性小（概率小于½）
- 等可能性（概率为½ 或 0.5）
- 很可能（概率大于½）
- 必然发生（概率为1）
In your speaking, use phrases like: 'There is an even chance of getting heads when you toss a fair coin' or 'Rolling a seven with a single dice is impossible, so the probability is zero.'
在你的口语中，使用这样的表达：“抛一枚公平硬币时，得到正面的可能性是½”或者“用一颗骰子掷出7点是不可能的，因此概率为0。”
A listening clip might describe a spinner with sections: 'The probability of landing on blue is 3/8, which is less than a half, so blue is unlikely.' Listen for these fractions and compare them to the halfway mark.
一段听力材料可能会描述一个转盘：“落在蓝色区域的概率是3/8，比一半小，所以蓝色不太可能出现。”注意听这些分数，并把它们与½进行比较。
7. Comparing Two Data Sets | 比较两组数据
Questions frequently ask you to compare two sets of data, such as test scores of two classes. Use averages and range to make your comparison complete.
问题经常会让你比较两组数据，比如两个班的测验分数。要使用平均数和极差来让你的比较更为完整。
For instance, 'Class A has a mean of 14 and a range of 6. Class B has a mean of 12 but a range of 12. This tells us that Class A performed better on average and their scores were more consistent, while Class B's marks were more spread out.'
例如，“A班的平均分是14，极差是6。B班的平均分是12，极差是12。这说明A班平均表现更好，且成绩更稳定，而B班的分数较为分散。”
Practice saying comparative sentences: higher mean, lower median, smaller range, greater spread. Always give a reason linked to the data. Listen for these comparisons in recordings too – the speaker may mention 'a wider spread' to hint at a larger range.
练习说出比较性的句子：更高的平均数、较低的中位数、更小的极差、更大的离散程度。始终给出与数据相关的理由。在录音中也要留意这类比较——说话人可能会提到“更广的分布”来暗示更大的极差。
8. Presenting Your Own Statistical Findings | 展示你自己的统计发现
You may be asked to present the results of a small survey or experiment. Structure your talk clearly.
你可能会被要求展示一项小型调查或实验的结果。要清晰地组织你的发言。
Start with a short introduction: 'I asked 30 students about their favourite fruit. I recorded the data in a tally chart and then drew a bar chart.' Then describe your method, the results, and end with a conclusion: 'The mode was apple, so apple is the most popular fruit in my survey.'
一开始先简短介绍：“我询问了30名学生他们最喜欢的水果。我用计数表记录了数据，然后画了一张条形图。”然后描述你的方法、结果，最后以结论收尾：“众数是苹果，所以苹果是本次调查中最受欢迎的水果。”
Use sequencing language: first, next, then, finally. Maintain eye contact and speak at a steady pace. When referring to a chart, point to the relevant part and describe it clearly.
使用表示顺序的语言：首先、其次、接着、最后。保持目光接触，语速平稳。当提及图表时，指向相关部分并清楚地描述它。
If you hear a classmate's presentation, listen for the same structure. Being familiar with this format helps you extract information more effectively during listening tasks.
如果你听一位同学的展示，也要注意同样的结构。熟悉这种格式能帮助你在听力任务中更有效地提取信息。
9. Responding to Questions and Feedback | 回应提问与反馈
After your presentation, the teacher or an examiner might ask follow-up questions. Be ready to explain your choices and draw further conclusions.
在展示之后，老师或考官可能会追问。做好准备解释你的选择并得出进一步的结论。
Example question: 'Why did you use a bar chart instead of a pie chart?' Good answer: 'A bar chart makes it easy to compare the frequencies of different categories at a glance. The heights of the bars show the differences clearly.'
示例问题：“你为什么用条形图而不用饼图？”一个好的回答：“条形图能让人一眼就比较出不同类别的频数。条形的高度可以清晰地显示差异。”
Another common question: 'What could you do to improve your survey?' You could say: 'I would ask a larger sample so the results are more reliable' or 'I would ask students from other year groups to make it more representative.'
另一个常见问题是：“你可以怎样改进你的调查？”你可以说：“我会调查更大的样本，这样结果会更可靠。”或者“我会调查其他年级的学生，让样本更有代表性。”
In the listening test, you may hear a conversation between a student and a teacher discussing survey improvements. Listen out for words like 'bias', 'sample size' or 'anomalous result'.
在听力测试中，你可能会听到学生和老师讨论如何改进调查的对话。注意听像“偏差”、“样本量”或“异常值”这样的词语。
10. Practice Techniques for Speaking and Listening | 口语与听力的练习技巧
Regular practice is the key to success. Use a variety of active methods to build your confidence and fluency.
经常练习是成功的关键。运用多种主动练习方法来建立自信、提升流利度。
- Record yourself explaining a graph or calculating the mean, then listen back to check clarity and accuracy.
- Work with a partner: one describes a table, the other draws the chart from the description.
- Create flashcards with statistical terms on one side and definitions on the other. Test each other orally.
- Listen to short data reports online and pause to summarise what you heard.
- 录下自己解释图表或计算平均数的过程，然后回听，检查是否清晰、准确。
- 与搭档一起练习：一人描述一张表格，另一人根据描述画出图表。
- 制作抽认卡，一面写统计术语，另一面写定义，口头互相测试。
- 在线收听简短的数据报道，暂停后归纳你所听到的内容。
During listening practice, don't panic if you miss a number – use the context to make an educated guess. The more you expose yourself to spoken statistics, the more naturally you will understand and speak it.
在听力练习中，如果错过一个数字不要慌张——利用上下文进行合理推测。你接触的口头统计信息越多，你理解和表达起来就会越自然。
Published by TutorHao | Statistics Revision Series | aleveler.com
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