2019高考英语二轮复习 精编优选练（十九）阅读理解提升练-词句猜测题1
精编优选练(十九)阅读理解——词句猜测题1(限时：25分钟)AFor many animals in the ocean, crabs (螃蟹) are food. How can they stay
精编优选练(十九)阅读理解——词句猜测题1 (限时：25分钟) A For many animals in the ocean, crabs (螃蟹) are food. How can they stay off the dinner menu? One type of crab, known as the decorator crab, has found aclever solution. It “decorates” itself. Decorator crabs use seaweed or sea sponges to protect themselves from natural enemies. More than 100 types of decorator crabs are found worldwide. One type, monly called the longnose spider crab, takes decorating to awhole new level. “My original thought was that they might just try to look like apiece of seaweed to blend into (融入) the background，” says Dr.Jay Stachowicz, from the University of California. But he soon noticed something odd. The ocean floor was covered in seaweed, but these crabs wouldn' tuse just any kind they found. “They were very, very picky，”says Dr. Stachowicz.“They were picking things that were fairly unmon.” Dr. Stachowicz noticed that longnose spider crabs would pick up apiece of seaweed and attach it to their back. Sometimes they would just eat it. These crabs were choosing to decorate themselves with seaweed that has a pepperytasting chemical in it. Most fish find this chemical unappetizing. Picking the right decorating material is important to the longnose spider crabs' chances of survival. “If the crabs just decorated themselves to look like the background, they would be giving their natural enemies alittle side salad with the main course，” says Dr. Stachowicz. But by carefully choosing the peppery seaweed, these decorator crabs can make their natural enemies stay away from them. Once alongnose spider crab has put together agood suit of “seaweed armor (盔甲)” to protect itself, it is set for awhile. “When acrab leaves its old shell naturally, it has to redecorate. It often uses seaweed from its old shell
