They have the evidence(证据) to c him.
高三英语单词拼写中等难度题
They have the evidence(证据) to c him.
高三英语单词拼写中等难度题查看答案及解析
The police set about arresting the suspect ______ they found enough evidence to prove him guilty.
A. immediate B. as long as C. the moment D. as far as
高三英语单项填空中等难度题查看答案及解析
The police set about arresting the suspect ______ they found enough evidence to prove him guilty.
A. immediate B. as long as C. the moment D. as far as
高三英语单项填空中等难度题查看答案及解析
The police set about arresting the suspect ______ they found enough evidence to prove him guilty.
| A．immediate | B．as long as | C．the moment | D．as far as |
高三英语单项填空简单题查看答案及解析
Researchers with the University of Cambridge say they have the first real evidence of a new state of matter, some 40 years after it was first theorized.
Known as “quantum spin liquid(量子旋转水)”, the matter state causes normally unbreakable electrons to break into pieces called “Majorana fermions.” These fermions are an important discovery. Physicists believe the material is vital to further develop quantum computing. Computers employing Majorana femuons would be able to carry out calculations beyond the scale of modern computers quickly, they say.
Quantum spin liquid explains some of the eccentric behaviors inside magnetic(磁性的) materials. In these materials, the electrons should behave like small bar magnets, all adjusting towards magnetic north when a material is cooled. But not all magnetic materials do this—if the material contains quantum spin liquid, the electrons don’t all line up and become involved.
“Until recently, we didn’t even know what the experimental fingerprints of a quantum spin liquid would look like,” researcher Dr.Dmitry Kovrizhin says. “That created a challenge for the researchers, so they decided to employ neutron scattering(神经扫描) techniques to look for evidence of break”. What they found surprised them. The features matched nearly exactly with quantum spin liquid models theorized by physicist Phil Anderson in 1973. The results of their breakthrough were then published in the scientific journal Nature Materials on Monday.
Don’t get too excited just yet on its applications, though. Kovirzhin’s work is only the beginning and as we’ve seen with quantum computing there is a lot of work to be done. But it’s still exciting regardless.
“It’s an important step for our understanding of quantum matter,” Kovrizhin says. “It’s fun to have another new quantum state that we’ve never seen before—it presents us with new possibilities to try new things.”
1.What can we learn about “Majorana fermion” according to Paragraph 2?
A. It is an important discovery 40 years ago.
B. It is a surprising theory raised by Phil Anderson.
C. It is a key piece in developing quantum computer.
D. It is an unbreakable electrons employing computer.
2.Which of the following can best replace the underlined word “eccentric” in Paragraph 3?
A. Strange. B. Complex. C. Permanent. D. Obvious.
3.How did the researchers make the breakthrough?
A. By adjusting magnetic materials.
B. By using neutron scattering techniques.
C. By repeating maths calculations.
D. By changing electronic structure.
4.What is the author’s tone about the future of quantum matter?
A. Negative. B. Doubtful. C. Indifferent. D. Optimistic.
高三英语阅读理解困难题查看答案及解析
(2013·甘肃兰州名校高三检测)The police set about arresting the suspect ________ they found enough evidence to prove him guilty.
A．immediate B．as long as
C．the moment D．as far as
高三英语单项填空中等难度题查看答案及解析
Global warming could make humans shorter. Scientists claim to have found evidence that it caused the world's first horses 1. （shrink） nearly 50 million years ago. In fact,a team from the universities of Florida and Nebreaks says 2. has found a link between the Earth heating up and the size of mammals-homes，during the last time the world heated up. The scientists used fossils to follow the evolution of homes from their earliest 3. （appear) 56 million years ago. As temperatures went up．their size went 4. . The scientists say that the current warming could have the same effect 5. mammals and could even make humans 6. （small）．“Horses started out small，about the size of a small dog. What's 7. （surprise）is that after they first appeared，they then became even smaller and then dramatically increased in size, and that8.（exact）corresponds to the global warming event, followed by cooling.”"It had been known that mammals 9. small during the last warm time， 10. we hadn't realized that temperature specifically was driving the evolution of body size”Dr. Bloch said in the "Science”journal.
高三英语语法填空简单题查看答案及解析
Australians have evidently realized the fact that water means life and we need to he more thoughtful in our use of this rather precious resource．Since the year 2000, Australians have managed to reduce their use of water by 14% ． In the most populous city, Sydney, they've managed to use less water in 2007 than in 1974, even though the city grew by l． 2 million souls in this period．
Across the country nearly 20% of all households have water tanks．That would probably be due, in large part, to the various state governments offering generous rebates． In NSW, for example, where 24,000 households have taken up the offer, you can get $1,500 AUD back if you fix a 7,000 + litre tank and have it attached into your toilet and washing machine．
Creywater use has taken off too． The Australian Bureau of Statistics suggest that it's now the second most common source of water in Australia, with over half of the country's homes reusing water from their washing machines, showers and baths． The state of Victoria leads with 70% using greywater, and Queensland, coming close behind with 63%．
Up in the northern state of．Queensland, some of their dams have been below 20%． Sydney's main dam is only at 56% of its potential capacity．
The country's ongoing drought（干旱） has seen more than 95% of the length of the Murray- Darling Basin （ the two major river systems that supply the nation's 'food basket' ） regarded as ' degraded', Supply of water has become such an issue that hydro-electric power（水力发电） output has dropped 7% in a recent 9 year period for the states of NSW, Victoria and Tasmania．Not good for promoting our uptake understanding of renewable energy in these climate changing times．But at least the message is getting through about making every drop count．
1.The underlined word "rebate" in paragraph 2 probably means ．
A． discount or allowance B． water tanks for free
C． agreements or payment D． washing machine of high quality
2.Which of the following statements is TRUE?
A． The state of Victoria is playing a leading role in greywater use．
B． More water has been used in Australia with the growing population．
C． The state of Queensland gets its water mostly from the north of its state．
D． Some of the dams in Queensland are too weak to hold potential water．
3.We can learn from the last paragraph that ．
A． the country's water shortage is partly due to continuous drought
B． large quantities of water are being used to produce electricity
C． the author hopes water resource could be used to the fullest
D． the author disagrees with the use of renewable energy
4.The passage is likely to appear in ．
A． a scientist's diary B． a history paper
C． a travel guidebook D． a newspaper
高三英语阅读理解中等难度题查看答案及解析
Larry asks Bill and Peter to go on a picnic with him，but ________ of them wants to，because they have work to do.(2012·新课标全国)
A．either B．any C．neither D．none
高三英语单项填空简单题查看答案及解析
Larry asks Bill and Peter to go on a picnic with him，but________of them wants to，because they have work to do. (2012·新课标全国，31)
A．either B．any
C．neither D none
高三英语单项填空中等难度题查看答案及解析