Two years ago, our street was exactly like any other: one bin, one truck, everything thrown away together. I used to feel guilty every time I threw a plastic bottle into that single bin, but I told myself there was nothing one person could do. That changed when I read an article which argued that individual action, however small, is the only place where change can begin. I started small. I bought four coloured bins, printed a simple guide, and hung it on the lamppost outside my flat. For the first month, my neighbours laughed. The old man next door called them "Meilin's toys". I was tempted to give up, but something stopped me: the teenage boy across the road started sorting his rubbish without being asked. By the end of the first summer, half the street was sorting. By winter, the local council had noticed, and they began collecting our recyclables separately. What had begun as a private embarrassment had, against all expectations, become a small official programme. Of course, recycling alone will not solve the climate crisis. It is too small, too slow, too easily reversed. Having said that, I refuse to accept the argument that because one gesture is insignificant, no gesture is worth making. If a single street in a crowded city can change its habits in eighteen months, then there are perhaps ten million other streets that could do the same. In the end, societies are not transformed by heroes; they are transformed by ordinary people who decide, together, to do one small thing differently.

Step 1 审题（2 分钟）
Read the question carefully. Underline: (a) the topic, (b) the two points you must cover, (c) whether you need your own opinion.
题目示例："Some people believe that individuals can do little to help the environment. Discuss both views and give your own opinion."

Step 2 列提纲（3 分钟）
Introduction: background + what the essay will do
Paragraph 2: view 1 (individuals can do little) + reason + example
Paragraph 3: view 2 (individuals matter) + reason + example
Conclusion: your opinion + summary

Step 3 写正文（20 分钟）
每段主题句开头：On the one hand, ... / On the other hand, ...
每段 40-50 词，一句主题 + 一句理由 + 一句例子。

Step 4 用上 B2 武器库（全程）
被动：It is argued that... / Studies have shown...
虚拟：If governments banned single-use plastic, ...
连接词：Furthermore / Having said that / In conclusion
高级词：detrimental / beneficial / sustainable / individual action

Step 5 检查（5 分钟）
① 字数 140-190？② 两个观点都覆盖了？③ 连接词够不够？④ 时态一致吗？⑤ 拼写？⑥ 缩写（don't）改成全写（do not）？

It is often argued that individuals can do very little to help the environment, compared with governments and large corporations. This essay will discuss both sides of the debate before reaching a conclusion. On the one hand, it is true that small personal gestures seem insignificant. A single plastic bag recycled by one citizen makes almost no difference to global emissions. Moreover, powerful industries are responsible for the majority of pollution, and it seems unfair to blame ordinary people. On the other hand, individual action is the only place where change can begin. For instance, when communities organise themselves, they can put pressure on local councils, as my own street did when it introduced recycling. Furthermore, consumer choices shape markets: if enough people refuse to buy single-use plastic, companies will produce less. In conclusion, while governments must lead, individuals should not underestimate their own power. Societies change not only from above, but from the daily decisions of ordinary people acting together.