4.信不信由你 　　 　　　　　　　　　　　__________________

3.因为，由于 　　 　　　　　　　　　　　__________________

2.充分利用 　　　　 　　　　　　　　　　__________________

1.在……中担任角色，在……中起作用 　　　__________________

4.expressed,expressive,expression　　　 5.rich,enrich

5.Mr.Wang,a teacher with _______ experience, encouraged us to _______ our life by joining in all kinds of activities after class. (rich)　

答案：1.useful; use　　 2.Including　　 3.governor; governs

4.He __________ in his ________ speech that he will support us and the __________ on his face suggested that he meant what he said. (express)

3.He is a strong __________ and he __________ the whole nation with an iron hand. (government)

2.The band played many songs,__________ some of my favorites. (include)　

1.It can be _________ to write a short summary after reading a passage, because it will be of great __________ to your writing. (usage)