The Lushan Mountain, occupying an area of 302 square kilometers, possesses rich cultural and geological __________.
|
A．attractions |
B．amusements |
C．entertainments |
D．presentations |
The doctor had almost lost hope at one point, but the patient finally__________ .
|
A．pulled out |
B．pulled through |
C．pulled up |
D．pulled over |
After ________________ a sandstorm warning on Sunday evening, meteorologists forecast that dusty weather will continue in parts of the country on Monday.
|
A．breaking off |
B．calling off |
C．leaving off |
D．putting off |
坚定的信念往往是成功的关键。请结合实例,写一篇关于 “Belief”的英语短文, 谈谈信念的重要性, 词数为120左右。无须写标题，开头已写好，不计词数。
It is widely acknowledged that holding a firm belief is of great importance when we are faced with challenges.
1.With (夏天到来), it’s getting hotter and hotter. (approach)
2.Doctors strongly recommend that fathers （到场）their babies’ birth. (present)
3.– I don’t suppose the police know who did it.
– Well, surprisingly they do. A man has been arrested and (在接受询问) now. (question)
4.The sports meet, originally due (举行) last Friday, was finally called off because of the bad weather. (hold)
5.Hello! Is that ABC Company? Could I speak to _____________ (负责…的人) the International Sales, please? (whoever)
6.Not （看完那本小说），Tom knew nothing about its tragic ending. (finish)
7. –Can I smoke here?
–Sorry, sir. At no time (允许吸烟) in this building. (allow)
8. A spokesman said that it was bad weather (承担责任) the delay. (blame)
9. __________________（众所周知）, it’s necessary to be prepared for a job interview and being well dressed will certainly help you a lot. (know)
10. When Xu Benyu graduated from college in 2003, he chose to teach in a mountainous area of Gui Zhou province when he _____________ (本可以享受) an easy city life. (enjoy)
An early invention by Albert Einstein has been rebuilt by scientists at Oxford University. They are trying to develop an environmentally friendly refrigerator that runs without electricity.
We all know that modern fridges cause damage to the environment. They work by using a kind of man-made greenhouse gas called Freon (氟里昂), which is far more damaging than carbon dioxide.
Now Malcolm McCulloch, an electrical engineer at Oxford, is leading a three-year project to develop appliances that can be used in places without electricity.
His team has completed a prototype (样机) of a fridge patented in 1930 by Einstein. It used only pressurized gases to keep things cold. The design was partly used in the first refrigerators, but the technology was dropped when more efficient compressors (压缩机) became popular in the 1950s. That meant a switch to using Freon.
Einstein's idea uses butane (丁烷) and water and takes advantage of the fact that liquids boil at lower temperatures, when the air pressure around them is lower.
"If you go to the top of Mount Qomolangma, water boils at a much lower temperature than it does when you're at sea level and that's because the pressure is much lower up there," said McCulloch.At one side is the evaporator (蒸发器), a bottle that contains liquid butane. "If you introduce a new vapor above the butane, the liquid boiling temperature decreases and, as it boils off, it takes energy from the surroundings to do so," says McCulloch. "That's what makes it cold."
The gas fridges based on Einstein's design were replaced by Freon-compressor fridges partly because Einstein's design was not very efficient. But McCulloch thinks that by changing the design and replacing the types of gases used it will be possible to quadruple (翻两番) the efficiency.
However, McCulloch's fridge is still in its early stages. "It's very much a prototype," he said. "Give us another month and we'll have it working."
1. According to the passage, an early invention by Albert Einstein _______.
A．has been rediscovered because it costs much less and works more efficiently
B．is being redesigned because it could be used in places without electricity
C．has just been found to be energy-saving and environmentally friendly
D．will be fully made use of and become the fridge of the future
2.Which of the following is TRUE according to the text?
A．Freon was used in fridges long before the 1950s.
B．Freon is what makes current fridges big polluters.
C．McCulloch thinks he could improve Einstein's design by using other types of vapors.
D．The fridge Malcolm McCulloch and his team designed will be put into production soon.
3.We can learn from the text that the prototype completed _______.
A．changed the air pressure around it
B．was tested on the top of Mount Everest
C．increased the liquid boiling temperature
D．used only pressurized gases to keep things cold
4.McCulloch's words in Paragraph 6 _____.
A．serve as an explanation for the principle behind Einstein's fridge
B．give you the reason why Einstein's fridge was not efficient
C．tell you how to take advantage of low air pressure
D．show you how Einstein's fridge works
