英语听力：自然百科 虫虫兄弟—15（在线收听） |
The flower morph larva in the muesli get busy, spinning a web. In the process coating with cereal and sticky tendrils. Not very appetising. And seen under the scanning electro-microscope, the blue cheese Maria bought at the market looks even less appealing. A powdery coating on the surface of the cheese likely includes a colony of cheese mites, the living and the dead. It's also littered with their skin and faeces and this can affect the taste. For those with a delicate stomach, the good news is that you can get the better of cheese mites. Keep cheese in the freezer as these mites can't survive at sub-zero temperatures. Later afternoon, and some familiar faces returned for the evening shift. The head lice back from the busy day drinking blood. And the boys haven't just brought their homework home. These shoes have a dirty secret. They are laced with yet more tiny mites absorbing the moisture from the muddy soil. Despite their tiny size, these mites could potentially be hosts to yet more parasitic invaders, such as tapeworms. In the garden, it's playtime, but not for the dog. An ally full of muggers lies in wait, scores of ticks are poised to attack. |
| 原文地址：http://www.tingroom.com/lesson/zrbaike/2013/281998.html |