18. A) To protect her from getting scratches. 9 i" J. S3 ]! i" V: s B) To help relieve her of the pain. , |5 g3 |! [# |+ r C) To prevent mosquito bites. 5 G8 _/ }( x9 P" F D) To avoid getting sunburnt.5 D1 l6 @' Z4 O k# N6 i1 f F- i+ a7 ?
W: These mosquito bites are killing me. I can’t help scratching.& G5 E4 y( Z5 j4 Z
M: Next time you go camping, take some precaution, say wearing long sleeves.! F- t$ C0 I: [
Q: Why does the man suggest the woman wear long sleeves?& L1 _6 ]" s+ O2 J1 |0 T
[答案]C)。[听前猜测]四个选项都是不定式作目的状语,听音时要注意说话人做事的目的。[精解]对话中女士埋怨蚊子咬得她忍不住直挠,男士建议她下次野营时要采取防护措施——穿长袖衣服。可见男士建议女士穿长袖衣服是为了预防蚊子叮咬。故本题答案为C)。