Test 9

Passage 1

Complete the following passage with the words in the box. Each can be used only once.（将下列单词填入空格。每空格限填一词，每词只能填一次）（共8分）

Penguins are birds that live in the cold. They live together in large and busy colonies（群体）. Every pair has a little piece of ground. When a penguin wants to walk 1 his neighbor's ground, he must ask for permission. If he does not, he will have to fight. Penguins come and go all day. They fight and look after their children. All penguins are good parents and the Emperor penguins（帝企鹅）are perhaps the best parents in the world.They walk in from the sea in the middle of the dark Antarctic（南极）winter. They choose their 2 in the dark. They can only hear them—not see them. Then the females 3 their eggs and will be away for two months. The males hold them on their feet inside a fold（褶）of skin.If the eggs get cold,there will be no chicks.There is no food. The snow falls. The wind blows sometimes at 150 kilometers an hour. The penguins do not move. When the females return from the sea they will not 4 their husbands. It does not matter. Only one thing matters—the eggs. Emperor penguins never fight unless a penguin leaves a chick for a minute. Then they fight because they all want it. They are strange and wonderful birds.

Food safety nowadays has become a rising concern. The food we eat seems to have great effects on our health. Although science has made big steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of 5 illness is related to food and forty percent of cancer is related to the diet as well. That food is related to illness is not a new discovery. In 1945, some researchers realized that things 6 used to keep colors in meats and other food additive （添加剂） caused cancer. Yet, these additives remain in our food, and it becomes more difficult, all the time to know which things on the packaging labels are helpful or harmful. The additives,which we eat,are not all so direct.Farmers often give penicillin（盘尼西林） to their animals, and because of this, penicillin has been found in the milk of 7 cow. Sometimes similar drugs are given to animals in order to get a higher price on the 8. Although some countries have tried to control such things, the practices continue.