Every living thing on Earth is either a plant or an animal, right? Wrong! Many organisms（有机体）in our world are neither. Some of them float through the air, and some lie hidden in the ground. They do not need sunlight to survive, and if the weather becomes too cold, they can become inactive until conditions improve.
What are these? They are called fungi(菌类), and you see them almost every day. Many kinds of fungi seemdisgusting, such as the green black things that appear on the food which are left too long in the refrigerator. But other kinds are not so bad. For example, the yeast that is used to make bread and mushrooms (蘑菇) are both fungi.
What makes fungi different from plants and animals? An animal can move around by itself. Fungi get around too, but they don't have feet, wings, or tails. They have to wait for wind or some other outside force to move them. Plants are different from fungi because they have chlorophyll（叶绿素）. It helps them make food from the energy in sunlight. Fungi do not have chlorophyll.
Some fungi are bad, while others are not. Some fungi cause diseases, such as athlete’s foot, which makes feet uncomfortable. Other kinds of fungi can be used to make medicines, which have saved many lives.
Fungi clean up more than wounds, though. They are the world’s first recyclers. Without fungi, our world would be a mess. Since fungi cannot make their own food as plants do, they must get their food elsewhere. Many fungi get their food from dead plants. They break them down and turn them into soil. The fungi get a meal, and the world gets a housecleaning.
1. What does the underlined word “disgusting”most probably mean?| A．strong | B．unpleasant | C．active | D．small |
| A．fungi can move everywhere by themselves |
| B．fungi are unable to survive in cold conditions |
| C．some fungi can make food from the energy in sunlight. |
| D．some fungi are useful to humans and the environment |
| A．In a social report. | B．In a biology book. |
| C．In a geography magazine. | D．In a farming book. |
相似题推荐
【推荐1】My friend once explained to me the importance of believing good things will happen. That is, you need to imagine success strongly, and then you will succeed.
Believing in good things can help people face difficult challenges. Some people believe that success will come to them, and this gives them the courage to move ahead. But it can also help them feel better about their lives. They expect success, and so they feel successful. This, I think, is close to the placebo (安慰剂) effect. If you add medicinal herbs (草药) to your diet to improve your energy level, you may feel that your energy level is improving, even if the herbs turn out to be just cabbage. In studies of new medicines, researchers often give some patients sugar pills and say the pills are medicine. This helps them find out how well the medicine truly works.
Many people do similar things in their daily lives. College students often choose a special shirt or baseball cap to wear during exams. They feel it will bring them good luck. Here in China, one of the newest placebos is “Einstein’s brain (爱因斯坦脑).” People are told that if they buy one, they will develop a brain like the famous scientist. Do buyers really believe this? Not very likely. But by “having” a super-quick brain, they may feel relaxed and, as a result, think more clearly during exams. But there is a condition—you must have studied enough first and you’ve worked hard enough.
1. What may happen if people imagine success strongly?| A．They’ll have no challenges. |
| B．They will be successful. |
| C．Their energy level will improve. |
| A．cabbages | B．sugar pills | C．a special shirt |
| A．A special shirt or baseball cap will bring them good luck. |
| B．The Einstein’s brain makes them relaxed and think more clearly. |
| C．Buying an Einstein’s brain helps them develop a similar brain. |
| A．tell us the importance of believing in good things. |
| B．introduce some new researches to the people. |
| C．tell us the importance of achieving great success. |
【推荐2】Do you know cotton（棉花）? Cotton is everywhere in our life although we might not notice it. Humans have been using cotton to make clothes for more than 7,000 years. Today, it still is the most widely used natural material（材料）in the whole world.
Cotton has many advantages（优点）that make it an excellent clothing material. On hot days, cotton clothing feels cool and comfortable.
Cotton comes from the cotton plant, a small plant that is easy to grow. The fruits of the cotton plant are covered by soft（柔软的）and light white fibers（纤维）for protection. These fibers are collected and made into cloth and then it can be made into many things,
The cotton seeds（种子）are not wasted either. They are put in a squeezing machine that presses the oil（食用油）out of them. This oil is a pretty useful thing for cooking and is used in many foods. The thing that is left is used to feed animals such as pigs and cows.
Nothing is wasted. That’s why cotton is such an amazing plant.
Because people like natural materials better than man-made materials, the things made of cotton will still be popular in the future. Humans will continue wearing clothes made of cotton.
1. Humans have been using cotton to make clothes for ________ years.| A．less than 7,000 | B．about 700 |
| C．less than 700 | D．over 7,000 |
| A．it is white | B．it has many advantages |
| C．it is easily bought | D．it is very cheap |
| A．压榨机 | B．搅拌机 | C．收割机 | D．播种机 |
| A．Cotton is very popular in the world now. |
| B．It is comfortable to wear clothes made of cotton. |
| C．The future of cotton isn’t bright or good. |
| D．The cotton seeds are also useful. |
| A．The Introduction（介绍）of Cotton |
| B．The History of Cotton |
| C．How to Use Cotton |
| D．Why People Plant Cotton |
Brachiosaurus (腕龙)
Brachiosaurus had longer legs at the front than at the back.
Fossils have been found in Colorado. Only one skull (颅骨) has been found. Fossils similar to the Brachiosaurus have been found in Africa and Europe.
| A．Brachiosaurus was a plant eater. |
| B．They were the shortest dinosaurs of all. |
| C．It would not be able to lift up on its hind legs. |
| D．But scientists believe they are different enough to be different dinosaurs. |
| E．Brachiosaurus was around 26 metres long (85 feet) in length and weighed about 26 tons. |
