National Geographic Explorers are featured as role models who embody the 21st century skills and values teenagers need to become successful global citizens.

Cross-curricular topics engage learners with stimulating information about the world, better preparing the for future academic success.

Student choice activities and projects present learners with options for language practice, allowing teens to become active participants in the learning process.

以下为单品介绍：

American Impact Level 4 Student Book 

出版日期:2017

出版社: CENGAGE Learning Custom Publishing

作者:Thomas Fast

ISBN:9781305862968

语种：英语

页数:153

尺寸(cm):21.6 x 1 x 27.8 cm

重量(kg)：0.4

封面

目录

内页

封底