词缀线索
Word Parts as Clues
运用常见的词形变化和词缀（-ed、-s、un-、-er）知识作为线索，推断生词的意思；理解前缀 un- 如何改变词义。
Use knowledge of common inflections and affixes (-ed, -s, un-, -er) as clues to the meaning of unknown words; understand how the prefix un- changes meaning
学习证据 / Evidence
- 认识到 -ed 表示过去时（例如“jumped”=已经发生）
- 解释 un- 如何让一个词变成相反的意思（例如“unhappy”=不快乐）
- 利用词缀来弄清生词的意思
- Recognise that -ed signals past tense (e.g. 'jumped' = already happened)
- Explain how un- makes a word mean the opposite (e.g. 'unhappy' = not happy)
- Use word parts to figure out the meaning of an unfamiliar word
评估问题 / Assessment
如果{{name}}看到一个不认识的单词，比如“unhelpful”或“jumped”，TA能利用单词的开头或结尾来推断出它的意思吗？
If {{name}} sees an unfamiliar word like "unhelpful" or "jumped," can they use the beginning or ending of the word to work out what it means?