I. 单项选择(20分)
1. It’s fun _____ the world with my family for the holiday.
A. traveling on B. to travel on C. to travel around D. traveling around
【解析】选C。 It’s fun to do sth. 做某事是有趣的。 travel around the world周游世界。
2. —Our class is made _____ five small groups.
—Yes, you are right.
A. of B. from C. up of D. out of
【解析】选C。 be made up of. . . 由……构成。
3. The Yangtze River is the _____ river in the world.
A. third-longest B. three-longest C. third-long D. three-long
【解析】选A。句意：长江是世界第三长河。 The +序数词+形容词的最高级，表示“第……最……的”。
