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三、单词拼写
1. The boy d of becoming a pilot.
2. She is studying e (工程学) at university.
3. In the past, people only used coal for g electricity.
4. Some foreign travellers will visit the three famous r of the
tomorrow.
5. Can you imagine the hotel can a up to 1,000 guests?
6. He is busy writing a new h novel.
7. Don’t you think it is a (荒谬的)idea to make petrol from water?
8. The Great Wall, which is now still under c , will be completed
nextJune
9. The hotel (提供)a shoe-cleaning service for guests.
查看习题详情和答案>>阅读理解。阅读下列短文，从每题所给的选项中，选出最佳答案。
The floors of the ocean contain many riches that can be used by man. Oil and chemicals and minerals are already taken from the sea. By using nuclear (核) energy, ocean water can be turned into fresh water by removing the salt. In the near future, it is possible for human beings to produce food from farms under the sea. Food grown in the sea could help meet the needs of the fast-increasing population all over the world, thousands of which go hungry every day. About 10----15% of the world population don't have enough food. Some scientists believe that someday the sea will be used to make electric power. This would help meet the need for more power for the world's industries. The decreasing supply of coal, oil and gasoline shows the need to find new kinds of power is urgent.
(1)Man has already made use of ________.
[ ]
A．forms under the sea
B．nuclear energy to turn ocean water fresh
C．salt water resource as fresh water
D．minerals, chemicals and oil taken from the sea
(2)From the passage, we can know that ________.
[ ]
A．more than one tenth of the worlds' people are starving (挨饿)
B．there are presently many farms under the sea and producing food
C．the supply of oil, gasoline and coal are increasing very rapidly throughout the world
D．it's unnecessary for man to make full use of the riches of sea
(3)The need to find new kinds of power is urgent. “Urgent” means
[ ]
A．needing fast decision and action
B．not needing fast decision and action
C．fast
D．not so important
(4)Why is the need to find new kinds of power so urgent? Because ________.
[ ]
A．the supply of coal, oil and gasoline is getting less while the need for more power for the world's industries is increasing
B．nuclear energy has not been made full use of to meet the need for more power
C．the world's population is growing larger every day
D．scientists are anxious to turn the idea of making use of the sea into realities
(5)The best title for this passage is ________.
[ ]
A．The Population of the World Is Increasing
B．Riches of the Sea
C．Man Can Run Farms under the Sea in the Future
D．The Finding of New Kinds of Power is Urgent
查看习题详情和答案>>Coal can be used to ________, so we used to ________ with coal, but today we are used to ________ with gas.
[ ]
A．cook; cook; cooking
B．cooking; cook; cook
C．cook; cooking; cooking
D．cooking; cooking; cook
查看习题详情和答案>>Directions：Complete the following passage by choosing the words in the box．Each word can only be used once．Note there is one word more than you need．
Using the power of the sun is nothing new．People have had solar-powered calculators and buildings with solar panels for decades．But plants are the real experts：they've been using 1 as an energy source for billions of years．
Cells in the green leaves of plants work 2 tiny factories to convert sunlight, carbon dioxide, and water into sugars and starches－stored energy that the plants can use, this conversion process is called photosynthesis(光合作用)．Unfortunately, 3 you're a plant, it's difficult and expensive to convert sun light into 4 energy．That's why scientists are taking a closer look at exactly how plants do it．
In a world with increasing energy needs, researchers are always looking for new ways to power everything from cars to computers 5 putting more stress on the environment．That's another reason why scientists are so interested in solar power－it doesn't pollute the air, water, or land．And since the sun lights and warms the entire planet, the ability to harness its energy could provide a clean energy 6 for everyone．
The main sources of energy that people use today are called fossil fuels, such as natural gas, oil, and coal．Unfortunately, the supply of fossil fuel is 7 ．Once we use all the coal and oil in the Earth, they're gone for good．The sun, on the other hand, is a 8 energy source．No matter how we tap it for energy, the sun will be around –at least for the next few billion years．
There's another problem with 9 fossil fuels－pollution．The ideal energy sources of the future will be“clean”：they won't produce carbon dioxide and other gases that pollute the environment as fossil fuels do．
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