18. A) To protect her from getting scratches.) W4 g+ w' L2 i/ `1 v( T0 {$ p( n2 f
B) To help relieve her of the pain.! k# h L7 n D. |9 s
C) To prevent mosquito bites.6 i0 V+ A$ @! B# x
D) To avoid getting sunburnt.- f5 Y9 |7 |3 O+ i$ a
W: These mosquito bites are killing me. I can’t help scratching., G6 [. K' l) g4 u: ^8 ?. g
M: Next time you go camping, take some precaution, say wearing long sleeves. 1 V+ O- ~) O4 T) B$ u0 S Q: Why does the man suggest the woman wear long sleeves?" |' {0 E8 K% W
[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)。