Test Your Word Knowledge With a Quiz About Farm Terms14 November 2011Two heifers at the Pennsylvania Farm ShowThis is the VOA Special English Agriculture Report.Today we have avocabulary quiz. We start with two questions about terms for plants.OK, first question: What is the name for a plant that lives only one year or one growing season? This kind of plant is called an annual. Think of an "annual report," a report published just once a year.You can probably guess the next question. What do we call a plant that produces new growth year after year? Plants that keep growing back are calledperennials. So a perennial is the opposite of an annual. Perennials come back year after year.Now some questions about terms forlivestock.What is another name for a male cow? A bull, right? Well, not always. A male cow is usually called a bull only if it still has its reproductive organs. If not, we call it a -- what? The answer: a steer.Next question: What is another name for a young cow? A very young cow is called a calf. But a young female cow, especially one that has not had a calf yet, has a special name. Do you know what it is? The answer: a heifer. Maybe you knew that. But here is question just for our radio listeners -- can you spell it? Heifer is spelled H-E-I-F-E-R.Cows, like allmammals,lactate. Our next question is: do you know what that means? To lactate means to produce milk. Cows lactate for up to ten months.In milk, fat rises to the top. But some people do not like to drink milk that way. So there is a process that reduces the size of the fatparticlesand mixes them all through the milk. This process has a name -- a long name. What is it? It's calledhomogenization.Still with us? OK, another question. Milk can be made into cheese. Some people like cheese made with milk from a sheep. What do you call a female sheep? The answer: a ewe, spelled E-W-E.Male sheep have their own name. A male sheep is a -- what? A ram.Rams and ewes produce lambs. A lamb is a sheep less than a year old. But what do you call the meat from a sheep over a year old? Then we call it mutton.Age alsoplays a partin terms for horses. For example, amareis generally a female three years or older. But what do you call a female horse under three? The answer: a filly. And for extra credit: do you know the name for a male horse under four? A colt.If you want to take this quiz again, you can find it at voaspecialenglish.com. And that’s the VOA Special English Agriculture Report.vocabulary quiz ：词汇测试play a part: 装腔骗人；扮演角色；在 … 中起一份作用perennial [p ə 'reni ə l]adj. 多年生的；常年的；四季不断的；常在的；反复的n. 多年生植物livestock ['laivst ɔ k]n. 牲畜；家畜mammal['mæm ə l]n. 哺乳动物lactate ['lækteit]vi. 分泌乳汁；喂奶n. 乳酸盐particles ['pa:tiklz]n. 微粒，粒子；粒子系统；碎木料（ particle 的复数形式）soil particles 土壤微粒，土粒diameter of particles 粒径；颗粒直径homogenization [h ɔ ,m ɔ d ʒə nai'zei ʃə n, -ni'z-]n. 均化；均化作用mare [m ε ə ]n. 母马；母驴；月球表面阴暗部 livestock breeding 畜牧业，畜牧饲养；家畜繁育livestock farming 畜牧业；养畜业livestock farm 畜牧场；禽畜饲养场；牧场n. 牲畜； [ 畜牧 ] 家畜cattle , dumb thingsperennial plant 多年生植物perennial grasses 多年生牧草perennial ryegrass 黑麦草perennial root 宿根adj.[ 植 ] 多年生的；常年的；四季不断的；常在的；反复的repeated , iterative装腔骗人；扮演角色；在 … 中起一份作用play the role