I．题目略。
1．modern
2．government
3．along
4．fresh
5．spaces
Ⅱ．题目略。
1．have taken place
2．on foot
3．getting better
4．find out
5．throw rubbish
【课后巩固提升】
Ⅲ． 1-5 DCACB
Ⅳ．题目略。
1．as goad as before
2．used to live
3．In the past; by bike; on foot
4．used to be
5．In a word; better and better
V． 1-3 CCD