2026年新课程课堂同步练习册八年级英语下册外研版第21页答案
Ⅳ. 读一读,仿一仿。
1. 表达承诺。
例句:I promised to be back before 9 tonight.
仿写:我答应在晚饭前完成作业。
I promised to finish my homework before dinner.

2. 说明行为背后的原因。
例句:On my way back, I realised that my phone was at Jiacheng's house.
仿写: 在去学校的路上,我发现我把钥匙忘在家里了。
On my way to school, I realised that I left my keys at home.

3. 表达主动帮助他人。
例句:I asked her if she needed help.
仿写:我问伤心的同学是否需要帮助。
I asked my sad classmate if she needed help.

4. 表达情绪转变与理解。
例句:I'm sorry for being cross with you.
仿写: 妈妈为对我生气很抱歉。
My mum felt sorry for being cross with me.

5. 表达对行为的肯定与自豪。
例句:I'm very proud of you.
仿写:老师为我感到非常自豪。
My teacher is very proud of me.

答案

1. I promised to finish my homework before dinner.
2. On my way to school, I realised that I left my keys at home.
3. I asked my sad classmate if she needed help.
4. My mum felt sorry for being cross with me.
5. My teacher is very proud of me.

解析

【分析】
1. 第1题:先明确例句是表达承诺的结构“I promised to + 动词原形短语 + 时间状语”,接着将中文内容对应翻译:“完成作业”译为finish my homework,“晚饭前”译为before dinner,主语用I,按照例句结构组合成句子即可。
2. 第2题:例句结构为“On one's way + 地点/方向, I realised that + 宾语从句(描述发现的内容)”,“在去学校的路上”对应On my way to school,“我把钥匙忘在家里了”译为I left my keys at home,整合进例句结构完成仿写。
3. 第3题:例句是询问他人是否需要帮助的结构“I asked + 宾语 + if she needed help”,将“伤心的同学”译为my sad classmate,替换例句中的her,保持其余结构不变完成仿写。
4. 第4题:例句结构为“主语 + be sorry/felt sorry for being cross with + 宾语”,“妈妈”译为My mum,“对我生气”对应being cross with me,用felt sorry更贴合语境,按照结构组合句子。
5. 第5题:例句是表达自豪的结构“主语 + be very proud of + 宾语”,“老师”译为My teacher,“我”译为me,代入结构即可完成仿写。
【解析】
1. 例句结构:主语 + promised to + 动词短语 + 时间状语
中文对应翻译:“我”→I,“完成作业”→finish my homework,“晚饭前”→before dinner
组合句子:I promised to finish my homework before dinner.
2. 例句结构:On one's way to + 地点, I realised that + 宾语从句
中文对应翻译:“在去学校的路上”→On my way to school,“我把钥匙忘在家里了”→I left my keys at home
组合句子:On my way to school, I realised that I left my keys at home.
3. 例句结构:I asked + 宾语 + if she needed help
中文对应翻译:“伤心的同学”→my sad classmate
替换宾语后组合句子:I asked my sad classmate if she needed help.
4. 例句结构:主语 + felt sorry for being cross with + 宾语
中文对应翻译:“妈妈”→My mum,“我”→me
组合句子:My mum felt sorry for being cross with me.
5. 例句结构:主语 + be very proud of + 宾语
中文对应翻译:“老师”→My teacher,“我”→me
组合句子:My teacher is very proud of me.
【答案】
1. I promised to finish my homework before dinner.
2. On my way to school, I realised that I left my keys at home.
3. I asked my sad classmate if she needed help.
4. My mum felt sorry for being cross with me.
5. My teacher is very proud of me.
【知识点】
英语句型仿写、动词短语搭配、宾语从句运用
【点评】
本题围绕不同功能的英语场景设置仿写练习,涵盖承诺表达、原因说明、主动帮助等实用语境,既能帮助学生巩固核心句型结构,又能提升英汉互译及场景化英语表达能力,注重基础句型的灵活运用。
【难度系数】
0.7