第一部分：英语知识运用(共两节,满分50分)
第一节：语法和词汇知识(共20小题;每小题1分,满分20分)
从A，B，C，D四个选项中，选出可以填入空白处的最佳选项，并在答题卡上将该项涂黑。
1. －Let's eat out, shall we?
－ _________. I've gone through my paycheck for the week already.
A. Forget it B. Don't mention it. C. All right D. Not good
2. Now _____ understanding of climate change is no longer limited to ____ small group of scientists or environmentalists.
A. / ; a B. an ; a C. the ; the D. a ; /
