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P3 · Grammar

at, on or in? · 時間介詞

One topic, taken from the rule to the mixed questions. Learn sets it out, Try builds it up step by step, and the last sections handle the traps and error-correction that come up most.

P323 pagesLearn ①–⑤ → Try A–LAnswers included

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Eight pages from our P1 pack Singular & Plural: the explanation, the practice and the answers, ready to print.

  • Learn ① and ② — add -s and add -es, each rule explained in 繁體中文
  • Try A to C — practice on exactly those two rules
  • Complete answers for A to C
  • A last page listing everything in the full 19-page pack
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What is inside

Each rule explained first, then practice that builds from spotting it to using it unaided. Every answer is checked.

5 Learn sections

  1. ①at + 時刻at six o'clock · at night
  2. ②on + 星期與日期on Monday · on 3rd May
  3. ③in + 較長的一段in May · in summer · in the morning
  4. ④有些時間詞不用介詞tomorrow · last week · every day
  5. ⑤校園的一年on Open Day · at the school fair · in Test Week

12 Try sets

  1. Aat 的用法Which phrase can follow at
  2. Bon 的用法Which phrase can follow on
  3. Cin 的用法Which phrase can follow in
  4. Din、on、at 還是不用Write in, on, at — or a dash
  5. E校園活動The school year
  6. F節日與日期A festival, or the day inside it
  7. G改錯Fix the mistake
  8. H全部一起All together
  9. I短文(一)· 我們一家的一星期Read and fill (1)
  10. J短文(二)· 學校的一年Read and fill (2)
  11. Kfrom … to …From one time to another
  12. L自己寫一寫Write your own
Full answers for Try A–L23 printable PDF pagesSubscriber watermark on every page