18. A) To protect her from getting scratches.
B) To help relieve her of the pain.
C) To prevent mosquito bites.
D) To avoid getting sunburnt.
W: These mosquito bites are killing me. I can’t help scratching.
M: Next time you go camping, take some precaution, say wearing long sleeves.
Q: Why does the man suggest the woman wear long sleeves?
[答案]C)。[聽前猜測]四個選項(xiàng)都是不定式作目的狀語，聽音時要注意說話人做事的目的。[精解]對話中女士埋怨蚊子咬得她忍不住直撓，男士建議她下次野營時要采取防護(hù)措施——穿長袖衣服?？梢娔惺拷ㄗh女士穿長袖衣服是為了預(yù)防蚊子叮咬。故本題答案為C)。