听力题 The male and female mosquitoes make an odd couple. The female eats and lives on blood. The male is a vegetarian that sips plant juices. Females of different species choose different hosts on which to dine. Some feed exclusively on cattle, horses, birds, and other warm-blooded creatures. Some favor cold-blooded animals. Still others prefer man. While the female''s menu varies, her bite remains the same. She drives her sharp, needle-like snout through the skin, injects a fluid to keep the blood from clotting, and drinks her fill, which takes a minute or less. It is the fluid she injects that carries disease. After her blood meal, she rests while eggs develop. She then looks for a moist or flooded place to lay them.