I.选择填空（Vocabulary and structure）(共20小题，计20分)
A）从A、B、C、D四个选项中，选出可以填入空白处的最佳答案。（答案涂在答题纸上）
—Do you know Mr. Smith?
—Yes. He's a strange man. We found ________ difficult to work with him.
A. us B. it C. him D. you
More ________ information is needed to help us work out the real situation.
| A．generous | B．reliable | C．grateful | D．fluent |
What upset us was that our flight was delayed because of the ________ storm.
| A．fierce | B．legal | C．intelligent | D．secure |
The wide popularity of the Korean music Gangnam Style has _________ heated discussions about people’s tastes nowadays.
| A．set about | B．set aside | C．set off | D．set down |
As a student, I want to use my creativity to _____ possible solutions to the problems I meet with.
| A．explain | B．express | C．ignore | D．explore |
The changes of the plants and animals in an area ________ from differences in climate and the nature of the country.
| A．rise | B．raise | C．arouse | D．arise |