be worried about / be responsible for介词固定：worried about；responsible for。
⑥ 中国学生 5 大高频错误诊断
错误 1：pollution 加 s ✗ pollutions. → ✓ pollution（不可数）。
错误 2：endangered / dangerous 混 ✗ Tigers are dangerous.（想说濒危）→ ✓ Tigers are endangered. 濒危=endangered。
错误 3：recycle / recycling 混 ✗ I like recycle. → ✓ I like recycling.（名词）/ I recycle every week.（动词）
错误 4：worried 介词错 ✗ worried for pollution. → ✓ worried about pollution.
错误 5：rubbish 当可数 ✗ many rubbishes. → ✓ a lot of rubbish（不可数）。
⑦ PET 考点与真题演练
题型
怎么考
应对
Reading Part 3 匹配
人物 × 环保主张
抓 worried / reduce / recycle
Reading Part 5 完形
挖环境名词空
看可数性与语境
Writing Part 6 email
呼吁环保行动
3R + if 条件句
Speaking Part 4
谈环境观点
I think... because... + should
真题风格演练（PET 出题方式）
真题风格 · PET Reading Part 3 匹配Sam wants to reduce waste at home and is worried about plastic. 他支持？ A. 多买瓶装水 B. 带可重复使用布袋购物 C. 用完即扔 D. 常开空调
B。reduce + plastic = reusable bag。
真题风格 · PET Reading Part 5 完形(1) ______ is a big problem in our city. We should (2) ______ paper, glass and plastic. Many animals are (3) ______, so we must act.
(1) Pollution；(2) recycle；(3) endangered。
真题风格 · PET Writing Part 6 email写 2 句呼吁同学减塑。
参考：We should use reusable bottles and recycle more. If everyone does this, we will reduce our plastic waste a lot.
考场提分提醒Part 3 匹配先抓态度词（worried / hopeful / responsible）和行动词（reduce / reuse / recycle）。写作呼吁 email 用 3R + If we..., we will... 句式。
PET（B1）四部分速查
部分
时间
题量
与本课关系
Reading & Writing
1 小时 45 分
阅读 5 部分 + 写作 2 题
本课语法/词汇是 Part 5 完形与 Part 6 email 的得分点
Listening
约 12 分钟
4 部分，听两遍
抓本课信号词即可定位答案
Speaking
10-12 分钟
4 部分（含搭档）
本课背诵句直接用于 Part 2 独白与 Part 3 讨论
写作 Part 6 email 要求约 100 词、必须覆盖题目三个要点；口语 Part 2 个人独白约 1-2 分钟，Part 3 要和搭档互动（附和、提问、商量），不能各说各话。
I think pollution is a very serious problem, and I'm worried about climate change. At home, we recycle paper and plastic, and we try to reduce our waste. We reuse bags and bottles. If everyone does small things, we will make a difference. It's our responsibility to protect the Earth.
ΣA; 口语练习：说出来才算会
PET Writing Part 1 email 万能开头/结尾（约 100 词三段式）开头：Hi Tom, thanks for your email — it was great to hear from you! 中间：题目给的三个要点，每个一句，用上本课语法/词汇。结尾：Write soon and tell me your news! Best wishes, Leo. 记住：三个要点缺一不可，否则扣分。
练习 A · 跟读（2 分钟）
跟着上面背诵卡读 3 遍：第一遍慢读看发音，第二遍正常速度，第三遍不看文字凭记忆说。
PET Speaking Part 2 个人独白万能开头/结尾（1-2 分钟）开头：I'd like to talk about... / The thing I want to tell you about is...；中间用 First of all... Also... But I think... 串两三个点；结尾：So, that's why I like it. Thank you for listening. 记住：别只说一句，要给例子、给理由，撑满 1 分钟。
练习 B · 自我对话（3 分钟）
Q: How do you help the environment? → A: I recycle and reduce waste.
Q: Are you worried about pollution? → A: Yes, I'm worried about it.
Q: What should we do? → A: We should plant more trees.
练习 C · 挑战（2 分钟）
不用稿子，说 4 句：一个环境问题 + 你家/学校怎么做 + 你的态度。
口语评分自查说完后对 3 条：① pollution/rubbish 不可数没加 s 吧？② endangered 用对了吗？③ worried about 介词对吗？
考场示范对话（读熟就能套）
Examiner: What environmental problems are there where you live? You: There's a lot of plastic pollution. We recycle at home, but people still use too many bags. Examiner: What should we do? You: We should reuse bags and reduce waste.