I.关键词语选择（共5小题；每小题1分，满分5分）
你将听到五个句子。请在每小题所给的A.B.C三个选项中选出你所听到的单词或短语。每个句子读2遍。
1 . A. received B. got C. heard
2 . A. moment B. environment C. development
3 . A. hobby B. rabbit C. habit
4 . A. look at B. laugh at C. smile
5 . A. worried B. worry about C. worry out
