P5 · Grammar
could · should · must · 情態動詞（進階）
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.
P521 pagesLearn ①–④ → Try A–KAnswers 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.
4 Learn sections
- ①could — three jobs同一個字，三個用法
- ②should and must建議還是規矩
- ③mustn't ≠ don't have to全書最重要的一頁
- ④have to, and common mistakes改錯題就是練這四種
11 Try sets
- Acould ＝ 以前做得到could for past ability
- BCould you …? 有禮貌could for polite requests
- Cshould 還是 must？Advice, or a rule?
- Dmustn't 還是 don't have to？Forbidden, or optional?
- Emust ＝ 一定是must for a strong guess
- Fhave to · has to · had tomust, with a subject and a tense
- G後面用原形The bare verb
- H改錯Fix the mistake
- I短文（一）· 踩單車去水塘Read and fill (1)
- J短文（二）· 泳池的告示Read and fill (2)
- K自己寫一寫Write your own