some scientists think that one day animals may be taught to do some jobs．they say that we may see elephants，monkeys，dogs，bears，or other animals doing a lot of things in a film or on tv．you watch carefully，you may find that those animals are always given something to eat after doing them．scientists say that many different animals may be taught to do a lot of simple jobs if they know they will get something to eat．as we know，dogs can look after a house，and elephants can do some heavy jobs．so we can also teach animals to work in factories．scientists believe that one day monkeys may drive trains．
词汇解析
scientists n. 科学家 different adj. 不同的 simple adj. 简单的 believe v. 相信