The evidence has ______ the first witness's s...

The evidence has ______ the first witness's story.

A. confused　　　　                 B. accumulate          C. confirmed　   D. attached

高三英语单项填空中等难度题查看答案及解析

The evidence has ______ the first witness's story.

A. confused　　　　 B. accumulate          C. confirmed　   D. attached

高三英语单项填空简单题查看答案及解析

Has the world just witnessed its first ever robot suicide? Boring housework was seemingly too much for one cleaning robot to take, when it apparently rebelled and decided to end it all.

The robot was given the tiresome task of cleaning up some spilt grain before it climbed on to a kitchen hotplate 1.___ it destroyed itself, according to reports in Austria. It had reportedly grown tired of 2._____(force) to clean the house every day and decided to become a martyr(殉道者) to the robot cause.

“Somehow it seems 3.____(restart) itself again before it made its way along the work surface. Then it pushed a cooking pot out of the way and basically that was the end of it,” explained fireman Helmut Kniewasser, who 4._____(call) to deal with the fire at Hinterstoder in Kirchdorf. “It pretty quickly started to melt underneath and then stuck to the kitchen hotplate. It then caught fire. 5.___ _____ _____ we arrived, it had become just a pile of ash.” He added: “The entire building 6.____ _____be evacuated (疏散) and there was severe smoke damage particularly in the flat in which the robot had been in use. “It’s a mystery how it came to be started and ended up making its way to the hotplate.” 7.____ took an hour to clean and make the building safe. The homeowner plans to charge the robot’s manufacturer.

高三英语语法填空中等难度题查看答案及解析

Imagine the first days in a new time zone. Slow to respond to the 　　　 　 , your body clock is confused. You’re sleepy all day, but when it’s time for bed, you can hardly fall asleep. Obviously you are　　 jet lag（时差反应）.

Travelers have traditionally fought this 　　 　　　 with sleeping pills or alcohol. There are actually healthier ways that can work just as 31.

For example, the moment you get on the airplane, start 　 　　　 your biological block to the destination’s time. If it’s daytime in your destination, try to stay 　 　　　 . Walking around the cabin（客舱） can be of help. When it’s nighttime, try to sleep. In that case, eat before the flight, 　 　　　 an empty stomach will prevent you from sleeping. These tips will help you start a new 　　　 of sleep and wakefulness.

1.A. flight　　 B. change　　 C. demand　　 D. climate

2.A. suffering from B. working on　 C. looking into　 D. leading to

3.A. danger　 B. problem　 C. waste　　　　 D. fear

4.A. briefly　 B. slowly　　 C. suddenly　　 D. effectively

5.A. checking　 B. sending　 C. adjusting　　 D. stopping

6.A. awake　 B. alone　　 C. hungry　　 D. calm

7.A. though　 B. so　　 C. whole　　　　 D. or

8.A. understanding B. cycle　　 C. research　　 D. trend

高三英语完形填空中等难度题查看答案及解析

Imagine the first days in a new time zone. Slow to respond to the _______, your body clock is confused. You’re sleepy all day, but when it’s time for bed, you can hardly fall asleep. Obviously you are _______ jet lag（时差反应）.

Travelers have traditionally fought this _______ with sleeping pills or alcohol. There are actually healthier ways that can work just as _______.

For example, the moment you get on the airplane, start _______your biological block to the destination’s time. If it’s daytime in your destination, try to stay _______. Walking around the cabin（客舱） can be of help. When it’s nighttime, try to sleep. In that case, eat before the flight, _______an empty stomach will prevent you from sleeping. These tips will help you start a new _______ of sleep and wakefulness.

1.A.flight B.change C.demand D.climate

2.A.suffering from B.working on C.looking into D.leading to

3.A.danger B.problem C.waste D.fear

4.A.briefly B.slowly C.suddenly D.effectively

5.A.checking B.sending C.adjusting D.stopping

6.A.awake B.alone C.hungry D.calm

7.A.though B.so C.whole D.or

8.A.understanding B.cycle C.research D.trend

高三英语完形填空中等难度题查看答案及解析

The story of a voyage bearing witness to plastic pollution in the oceans,Junk Raft(筏子），based on facts,is an exciting,thought-provoking book.Science educator and researcher Marcus Eriksen's navigational feat(航海壮举）is holding readers' attention and interest--88 days crossing some 4,000 kilometers of open ocean,on a raft made of 15,000 plastic bottles wrapped in fishing nets.But it is more. Two equally fascinating storylines are made up through the written records of a series of events: Eriksen's evolution from soldier to research director of the environmental non-profit 5 Gyres Institute, and the journey we all need to take towards a more sustainable use of plastics.

Around 15%of all the litter in our oceans in plastic,and a calculated 5 million tonnes of plastic waste enter the seas annually.Unavoidably,it is now present at the sea surface and on shorelines,in Arctic seas and on the sea bed at depths of 3,500 metres.Around 700 sea species are known to come into contact with pieces of waste plastic material-and can be harmed or killed by taking in it or becoming twisted and caught in it.There are also concerns about plastics accumulating in commercially important species of fish and shellfish.The waters and shores of Hawaii are particularly heavily pottuted, giving a rationale(理由）for Eriksen's destination.

This environmental challenge has attracted increasing scientific,media and societal attention in recent years.　 yet few accounts have conveyed the\wider picture accessibly Junk Raft does just this---while exposing our frustratingly slow progress on a issue of major importance to fisheries, tourism and,finally,the health of the world's oceans.

Eriksen lists the issues associated with the accumulation of sea plastic:the causes,consequences and potential solutions.Our single-use culture is the main offender.For more than 60 years,society and industry have been producing more and more throwaway items particularly packaging.Some solutions lie in better acquisition of materials at the end of their lives,in a circular economy.

Eriksen takes the crisis into consideration together with a timeline of scientific discovery and advancement since the 1970s.Alongside this he gives a very personal,somewhat North American,view the troubles of industry and policy involvement the side plots and blind alleys,and the tactics(战术） of avoidance and disturbance he has so often experienced.There are parallels,he shows,with the troubles that faced those who fought to raise awareness around the health impacts of smoking.

Throughout,we are regularly brought back to the realities of life aboard the raft,with Eriksen's fellow sailor Joel Paschal.This is both fascinating and eventful,from their slow,occasionally very dangerous progress to the moments when it seems the raft will break up into pieces,littering the ocean with the waste material Eriksen is trying so hard to fight against.Eriksen's wider journey also takes him onto dry land,where he touches on the accumulation of land plastic.He learns about the consumption of plastic bags by camels-a serious issue in some desert countries.

It can be difficult to judge the direct impacts of projects such as Eriksen's,but he rightly notes the Importance of raising awareness of the risks of disposable plastic.Eriksen has also done much to emphasize the environmental consequences of polymer microbeads(聚合物微粒）in the US Great Lakes, providing key evidence that led to the introduction of a law.

Junk Raft is filled with adventure,romance,a sense of optimism and important truths that will be needed by the thousands of groups.It serves as a reflection of the choices and journeys that each of us makes and helps us understand how plastic in the oceans is closely connected with the future of human life.

1.What makes the book Junk Raft attractive to readers?

A.The appeal for global environmental protection.

B.Efforts made to put an end to the use of plastics.

C.Erisken's adventures on the plastic ocean on a raft.

D.Eriksen's soldierly service and environmental study.

2.What has raised people's concern according to the passage?

A.More rubbish being poured into the oceans.

B.Plastics accumulating in rare species of fish.

C.Many species in the oceans suffering fro shock.

D.The waters of the oceans being polluted by plastics.

3.What does the underlined word"this"in Paragraph3 refer to?

A.Making accounts accessible.

B.Listing the environmental issues.

C.Taking the pollution into account.

D.Facing the environmental challenge.

4.What is the main reason for sea plastic pollution?

A.The overuse of household items.

B.The wasteful throwaway culture.

C.The production of more materials.

D.The failure to find potential solutions.

5.The trouble industry and policy engagement face lies in that_____.

A.the current policy is yet to be further perfected

B.people turn a blind eye to the plastics industry

C.people lack correct awareness of the problem

D.the market need for plastics is enlarging on land

6.What is the author's attitude toward Eriksen's work?

A.Cautious. B.Ambiguous.

C.Doubtful. D.Appreciative.

高三英语阅读理解困难题查看答案及解析

His 　 　　 conflicted with that of the other witnesses and yet his story had, for me, the ring of truth.

A. expectation　　 B. instruction

C. response　　 D. account

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

The study， from academics at Harvard， claims __________ the first clear evidence showing that when temperatures go up， school performance goes down．

A. to have produced B. to produce

C. producing D. being produced

高三英语单项填空困难题查看答案及解析

(2013·浙江温州二模)Scientists have found evidence ________ global warming caused the world's first horses to become smaller nearly 50 million years ago.

A．what      B．that

C．which      D．whether

高三英语单项填空中等难度题查看答案及解析