四年级下册app是一款专为小学四年级学生设计的教育类移动应用，完美契合教材内容，支持课前预习、课后复习和课堂辅助学习。应用提供无限次复读功能，帮助学生巩固知识点，现已在绿色资源网开放下载。
本应用属于"优学跟读"系列，专为外研社新标准小学英语四年级下册教材配套开发。核心功能包括双语对照跟读训练，配备专业发音示范，帮助孩子自主完成英语学习。应用通过趣味互动方式减轻家长辅导负担，让孩子在轻松点击中掌握英语知识。
Module 1 Unit 1 Do't touch the machines,please!
Module 1 Unit 2 Don't feed the fish!
Module 2 Unit 1 It's cheap.
Module 2 Unit 2 It costs one hundred and eighteen yuan.
Module 3 Unit 1 He shouted,'Wolf,wolf!'
Module 3 Unit 2 She went into a shop.
Module 4 Unit 1 Dad played the erhu.
Module 4 Unit 2 I was very nervous.
Module 5 Unit 1 We're having a party.
Module 5 Unit 2 He's drawing books and birds.
Module 6 Unit 1 I'll draw the pictures.
Module 6 Unit 2 Let's have fun this Saturday!
Module 7 Unit 1 What's the time?
Module 7 Unit 2 It's 6:30 am in New York.
Module 8 Unit 1 He lives in the east of the US.
Module 8 Unit 2 It's in the north of China.
Module 9 Unit 1 Why do you like Australia?
Module 9 Unit 2 Kangaroos live in Australia.
Module 10 Unit 1 I'll send you a postcard.
Module 10 Unit 2 I'm going to visit London.
Review Module
Words and Expressions in Each Module
Word List
Words in Songs and Chants
Proper Nouns
Reading for pleasure
"优学跟读"系列应用严格遵循教材内容编排，打造智能化电子课本体验。应用内置高质量语音系统，支持孩子随时随地进行听说练习。简洁直观的操作界面让孩子能够独立使用，通过互动式学习方式全面提升英语能力，成为孩子学习路上的得力助手。
