Unit 5 Have a Great Trip Lesson 1 习题一、看图写单词。1. 2. 3. 4. 二、翻译下列句子。1. I swam in the sea. 2. We took photos in the West Lake 3. I went skiing in Harbin last winter vocation. 4. I went to beach and swam last summer vocation. 5. I ate many apples. 三、单项选择( ) ...