旅行吧!

Ⅰ. 1. halfway          2. phenomenon      3. widespread

4. portable         5. access               6. entertainment

7. Quality           8. complex            9. sustain

10. superficial     11. debate           12. intensity

13. maximize      14. concentrate    15. potential

Ⅱ. CACDB

Ⅲ. DAFGC

Ⅳ. CDABD       BDBAB

Ⅴ. BECDA

Ⅵ. CCACC

Ⅶ. 46. divided into   47. thought through   48. at once

49. She talked about the poor girl, tears rolling down her cheeks.

 50. Because the police were chasing him, the thief ran faster than ever.

 51. She is a beautiful girl; however, she has a hot temper.