Unit 1 III 1 . Ups and downs。with so many ups and downs ever。Unit 2 Space InvadersI. Vocabulary。
综合教程4Tag内容描述：
1、wordNature nurtures mankind unselfishly with its rich resources. Yet, man is so carried away in his transformation of na。
2、Unit 1 III 1 . Ups and downs: 波折 , 盛衰 ,哭了 , 浮沉Martins upbringing shaped his whole life , with so many ups and downs ever。
3、 Unit 5 Text A Text oga ni zati on 1. Parts Paragraphs Main Ideas Part One Paras 1 It is no easy to judge people, for th。
4、真诚为您提供优质参考资料，若有不当之处，请指正。Unit 2 Space InvadersI. Vocabulary:I. Explain the underlined part in each sentence in your own w。