完形填空练习 - 家长易论坛

Green is an important color in nature. It is the color of grass and the leaves on trees. It is also the color of most growing plants. Sometimes, the green means young, fresh and growing . Sometimes, it describes something that is ripe or finished. For example, a greenhorn is someone who has no , who is new to a situation. In the fifteenth century, a greenhorn was a young cow or ox horns had not yet developed. A century or so later, a greenhorn was a who had no experience in battle. By the eighteenth century, a greenhorn had the meaning it has today —— a person who is new in a job. Someone who has the ability to grow plants well is said to have a green thumb. You might say that the woman next door has a green thumb her garden continues to grow long after your plants have died. The Green Revolution is the name some years ago to the development of new kinds of rice and other grains. The new plants produced much larger crops. The Green Revolution was the of hard work by agricultural scientists who had green thumbs.