免费英语学习
小学 · 人教版2025 · 四年级上册 · Unit 4
Section A - Let's learn
Community Helpers
社区帮手
Sarah: Why is a firefighter important? Mike: Firefighters save people from fire. They are very brave! Sarah: What about a police officer? Mike: A police officer keeps us safe. Sarah: And a delivery worker? They bring us packages. Mike: Yes! Every job helps the community.
Sarah:为什么消防员很重要? Mike:消防员从火中救人。他们非常勇敢! Sarah:警察呢? Mike:警察保护我们安全。 Sarah:快递员呢?他们给我们送包裹。 Mike:对!每份工作都在帮助社区。
firefighterwhydrivercleanercookdelivery_workerpolice_officer
Why 引导的特殊疑问句

Why is + 主语 + 形容词? = 为什么……?回答用 Because...(因为……)。这是四年级学why问句的入门。

Wu Binbin: My aunt is a cook. She makes delicious food. Amy: Cool! My uncle is a driver. He drives a big bus. Wu Binbin: There are a lot of jobs in our city. Amy: Yes, cleaners keep our streets clean. Wu Binbin: We should thank all our community helpers! Amy: Let's make "Thank You" cards for them!
吴彬彬:我阿姨是厨师。她做美味的食物。 Amy:酷!我叔叔是司机。他开大公交。 吴彬彬:我们城市里有很多工作。 Amy:是啊,清洁工让我们的街道干净。 吴彬彬:我们应该感谢所有的社区帮手! Amy:我们给他们做感谢卡吧!
cookdrivercleanera lot of
职业词汇的构成规律

很多职业词以-er/-or结尾:teacher, driver, cleaner, doctor。动词+er = 做这个动作的人。

要点摘要
  • P1: 讨论消防员和警察——为什么重要
  • P2: 社区帮手大集合——cook/driver/cleaner