题目内容
Plants need water and sunlight to grow well. ________, a healthy body requires a balanced diet(饮食).
A.Luckily B. Similarly C. Completely D. Incorrectly
B
Farming is moving indoors, where the sun never shines, where rainfall is irrelevant (无关的) and where the climate is always right. The perfect crop field could be inside a windowless building with controlled light, temperature，humidity，air quality and nutrition. It could be in a New York high- rise or a complex （建筑群） in the Saudi desert. It may be an answer to the world’s food problems.
The world already is having trouble feeding itself. Half the people on Earth live in cities, and nearly half of those – about 3 billion – are hungry or ill–fed. Food prices, currently increasing, are badly affected by dryness, floods and the cost of energy required to plant, harvest and transport it. And prices will only get more unstable. Climate change makes long-term crop planning uncertain. Farmers in many parts of the world already are using water available to the last drop. And the world is getting more crowded: by mid-century, the global population will grow from 6.8 billion to 9 billion.
To feed so many people may require expanding farmland at the expense of forests and wilderness, or finding ways to greatly increase crop output.
Gertjan Meeuws and three other Dutch bioengineers grow vegetables and house plants in closed and regulated environments. In their research station, water flows into the pans when needed, and the temperature is kept constant. Lights go on and off, creating “day” and “night”, but according to the rhythm of the plant.
Meeuws says a building of 100 square meters and layers of plants could provide a daily diet of 200 grams of fresh fruit and vegetables for the entire population of Ken Bosch, about 140,000 people. Their idea isn’t to grow foods that require much space, like corn or potatoes.
Sunlight is not only unnecessary but can be harmful. Plants need only specific wavelengths of light to grow. Their growth rate is three times faster than under greenhouse conditions. They use about 90 percent less water than outdoor agriculture. And city farming means producing food near the consumer, so there’s on need to transport it long distances.
【小题1】According to the text, Gertjan Meeuws’ farming _______.
| A．can be used for corn production |
| B．is much like greenhouse farming |
| C．is adaptable to any environment |
| D．uses more water than outdoor farming |
| A．The effect of climate | B．The hungry people in cities. |
| C．The world’s food problem. | D．The world’s increasing population. |
| A．To compare traditional and indoor farming. |
| B．To discuss the influence of climate change. |
| C．To explain the world’s food problem. |
| D．To introduce a new model of farming. |
“If you talk to the plants, they will grow faster and the effect is even better if you’re a woman.” Researchers at Royal Horticultural Society carried out an experiment to find that the voice of a woman gardener makes plants grow faster.
The experiment lasted a month and by the end of the study scientists managed to discover that tomato plants grew up two inches taller when women gardeners talked to them instead of male.
Sarah Darwin was the one making the plants the best growth. Her voice was the most “inspiring” for plants than those of nine other gardeners when reading a passage from The Origin of Species. The great-great-granddaughter of the famous botanist （植物学家）Charles Darwin found that her plant grew about two inches taller than the plant of the best male gardener.
Colin Crosbie, Garden Superintendent at RHS, said that the finding cannot yet be explained.He says that women have a greater range of pitch and tone（音高和音色）which might have a certain effect on the sound waves that reach the plant. “Sound waves are an environmental effect just like rain or light ,”said Mr Grosbie.
The study began in April at RHS Garden Wisley in Survey. Scientists started with open auditions(听力) for the people who were asked to record passages from John Wyndham's The Day of the Triffids, Shakespeare’s A Midsummer's Night Dream and Darwin's The Origin of Species.
Afterwards researchers selected a number of different voices and played them to 10 tomato plants during a period of a month. Each plant had headphones connected to it. Through the headphones the sound waves could hit the plants. It was discovered that plants that “listened” to female voices grew taller by an inch in comparison to plants that heard male voices.
【小题1】What does the passage talk about?
| A．Plants enjoy men’s voices than women’s. |
| B．A science experiment in a museum. |
| C．Voice’s influence on plant growing. |
| D．Strange findings at Royal Horticultural Society. |
| A．Plants need sound as well as rain and light. |
| B．Sound is basic for the plant to grow. |
| C．Sound has a good effect as rain or light does. |
| D．Plants can’t live without sound, rain or light. |
| A．The experiment ended in May. |
| B．Scientist can explain the findings clearly. |
| C．Plants enjoy listening to the passages from famous works. |
| D．The findings are of great importance to human beings. |
Water is very important to living things. Without water there can be no life on the earth. All animals and plants need water. Man also needs water. We need water to drink, to cook our food and to clean ourselves. Water is needed in offices, factories and schools. Water is needed everywhere.
There is water in seas, rivers and lakes. Water is found almost everywhere. Even in the desert part of the world, there is some water in the air. You can not see or feel it when it is a part of the air. The water in the seas, rivers and lakes is a liquid, the water in the air is a gas, and we call it water vapour (蒸气).
Clouds are made of water. They may be made of very small drops of water. They may also be made of snow crystals(结晶体). Snow crystals are very very small crystals of ice. Ice is frozen water. It is a solid. There can be snow and ice everywhere in winter.
Water may be a solid or a liquid or a gas. When it is a solid, it may be as hard as a stone. When it is a liquid, you can drink it. When it is a gas, you can not see or feel it.
【小题1】Where can we find water?
| A．We can find water when it turns into vapour. |
| B．Water is only in seas and rivers. |
| C．We can see water in deserts here and there. |
| D．Water can be found almost everywhere. |
| A．a solid | B．aliquid | C．in the air | D．turned into ice |
| A．seas, rivers and lakes |
| B．blocks of ice |
| C．very small drops of water or snow crystals |
| D．solid, liquid and gas |
| A．solid, liquid and gas |
| B．solid, vapour, snow |
| C．drops of water, blocks of ice and crystals of water |
| D．ice, snow and air |
Water is very important to living things. Without water there can be no life on the earth. All animals and plants need water. Man also needs water. We need water to drink, to cook our food and to clean ourselves. Water is needed in offices, factories and schools. Water is needed everywhere.
There is water in seas, rivers and lakes. Water is found almost everywhere. Even in the desert part of the world, there is some water in the air. You can not see or feel it when it is a part of the air. The water in the seas, rivers and lakes is a liquid, the water in the air is a gas, and we call it water vapour (蒸气).
Clouds are made of water. They may be made of very small drops of water. They may also be made of snow crystals(结晶体). Snow crystals are very very small crystals of ice. Ice is frozen water. It is a solid. There can be snow and ice everywhere in winter.
Water may be a solid or a liquid or a gas. When it is a solid, it may be as hard as a stone. When it is a liquid, you can drink it. When it is a gas, you can not see or feel it.
【小题1】Where can we find water?
| A．Water can be found almost everywhere |
| B．We can find water when it turns into vapour. |
| C．Water is only in seas and rivers. |
| D．We can see water in deserts here and there. |
| A．a solid | B．in the air | C．aliquid | D．turned into ice |
| A．seas, rivers and lakes | B．solid, liquid and gas |
| C．very small drops of water or snow crystals | D．blocks of ice |
| A．solid, liquid and gas |
| B．solid, vapour, snow |
| C．drops of water, blocks of ice and crystals of water |
| D．ice,snow and air |