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__________ to sun, rain and wind for a long time, the stone split.
A. Being exposed B. Having exposed
C. Exposed D. To expose
高二英语单项填空中等难度题查看答案及解析
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__________ to sun, rain and wind for a long time, the stone split（裂开）.
A．Being exposed
B．Having exposed
C．Exposed
D．To expose
高二英语单项填空中等难度题查看答案及解析
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Some very common things such as________to the sun for a long time will do harm to people's skin and even cause skin cancer
A．exposing B．being exposed C．having exposed D．exposed
高二英语单项填空简单题查看答案及解析
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We’ve used the wind as an energy source for a long time. The Babylonians and Chinese were using wind power to pump water for irrigating crops 4,000 years ago, and sailing boats were around long before that. Wind power was used in the Middle Ages, in Europe, to grind(磨碎) corn, which is where the term “windmill” comes from.
We can use the energy in the wind by building a tall tower, with a large propellor（螺旋桨） on the top. The wind blows the propellor round, which turns a generator to produce electricity. We tend to build many of these towers together, to make a “wind farm” and produce more electricity. The more towers, the more wind, and the larger the propellors, the more electricity we can make. It’s only worth building wind farms in places that have strong, steady winds, although boats and caravans（大篷车）increasingly have small wind generators to help keep their batteries charged.
The best places for wind farms are in coastal areas, at the tops of rounded hills, open plains and gaps in mountains — places where the wind is strong and reliable. Some are offshore. To be worthwhile, you need an average wind speed of around 25 km/h. Most wind farms in the UK are in Cornwall or Wales. Isolated places such as farms may have their own wind generators. In California, several “wind farms” supply electricity to homes around Los Angeles.
The propellors are large, to obtain energy from the largest possible volume of air. The blades can be angled to cope with varying wind speeds. Some designs use vertical turbines (垂直涡轮机), which don’t need to be turned to face the wind. The towers are tall, to get the propellors as high as possible, up to where the wind is stronger. This means that the land beneath can still be used for farming.
1.The first paragraph aims to introduce to us _______.
A. the function of wind power B. the source of wind power
C. the nations using wind power D. the history of using wind power
2.The best places for building the wind farm are places where _______.
A. boats and caravans can often be seen B. isolated farms don’t have enough electricity
C. there are less human activities D. the wind is strong and reliable
3.We can infer from the passage that _______.
A. wind farms will not take up too much farming land
B. wind farms need no fuel because wind is free
C. the blades can be angled to turn to face the wind wherever it comes from
D. the higher and larger the towers are, the stronger the wind is
4.What can be a suitable title for the passage?
A. Where to build a wind farm. B. ABC of the using of wind energy.
C. How to make best use of wind. D. Wind energy is the best energy.
5.The underlined sentence in the last paragraph means______________________.
A. The blades can increase wind speeds
B. The blades can decrease the wind speeds
C. The speed of blades can be changed.
D. The blades can be adjusted to face different wind speeds
高二英语阅读理解简单题查看答案及解析
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A desert is a beautiful land of silence and space. The sun shines, the wind blows, and time and space seem endless. Nothing is soft. The sand and rocks are hard, and many of the plants even have hard needles instead of leaves.
The size and location of the world's deserts are always changing. Over millions of years, as climates change and mountains rise, new dry and wet areas develop. But within the last 100 years, deserts have been growing at a frightening speed. This is partly because of natural changes, but the greatest makers are humans.
Humans can make deserts, but humans can also prevent their growth. Mauritania is planting a similar wall around Nouakchott, the capital. Iran puts a thin covering of oil on sandy areas and plants trees. The oil keeps the water and small trees in the land, and men on motorcycles keep the sheep and goats away. The USSR and India are building long canals to bring water to desert areas.
1.In this passage, the underlined word “needles” refers to ________.
A．small, thin pieces of steel
B．long, thin pieces of branches
C．thin, hard, pointed leaf
D．small, thin pieces of sticks
2.Which of the following is NOT true?
A．The greatest desert makers are human beings.
B．There aren't any living things in the deserts.
C．Deserts have been changing quickly.
D．The size of the deserts is always growing.
3.People in some countries are fighting a battle against ________.
A．the growth of deserts
B．desert climate
C．natural changes
D．the disappearance of desert
4.What does the author want to tell us?
A．Deserts are lands of hardness, silence and space.
B．The deserts of the world are changing from time to time.
C．Man is to take measures to control the growth of deserts.
D．Deserts have grown at a fast pace in the past 10 years.
高二英语阅读理解中等难度题查看答案及解析
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. _________ the wind and the sun, the color on the board gradually ran.
A. Being exposed to B. Having exposed C. Exposing D. Exposed to
高二英语单项填空简单题查看答案及解析
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_________ the wind and the sun, the color on the board gradually ran.
A. Being exposed to B. Having exposed C. Exposing D. Exposed to
高二英语单项填空中等难度题查看答案及解析
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It took a long time for the connection between body temperature and illness ________.
A. to make B. to be made
C. making D. being made
高二英语单项填空中等难度题查看答案及解析
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For a long time we walked without saying ______ word and eventually Jack was the first to break ______ silence.
A. the; a B. a; the C. a；/ D. the；/
高二英语单项填空中等难度题查看答案及解析
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They sat face to face, ________ about the things they were interested in for a long time.
A. and talk B. talking C. to talk D. talked
高二英语单项填空简单题查看答案及解析