Modern plastics can ______ very high and very...

Modern plastics can ______ very high and very low temperatures.

A. stand                B. hold             C. carry                D. support

高三英语单项填空中等难度题查看答案及解析

Modern plastics can _________　 very high and very low temperatures.

A. stand　　 　　　 B. keep　　 　　　　　　 C. hold　　　 　　　　 D. remain

高三英语单项填空简单题查看答案及解析

The weather here is great, with temperatures ______ from a low of 55°F to a high of 75 °F in the summer.

A.range B.ranged C.to rang D.ranging

高三英语单项填空中等难度题查看答案及解析

Plastic is the workhorse material of the modern economy (经济). Lightweight and durable, it’s been used to make a vast number of products since its introduction over 100 years ago.

However, a study carried out by the World Economic Forum, the Ellen MacArthur Foundation and McKinsey Company showed the status of the breakdown in the global plastic system. A full 32% of the 78 million tons of plastic packaging produced annually is left to flow into our oceans.

The Ocean Cleanup, a start-up founded in 2013, is the brainchild of Boyan Slat, who came up with the idea for the company when he was just 17 years old. Since then, it’s received more than $2 million in funding(基金). The company plans to use a large array (列阵) that will be fixed to the bottom of the Pacific Ocean. This will have arms that spread out over 100 km, getting all of the plastic garbage pushed into its nets. This is then collected by a 10,000-metre-cube container that will be emptied monthly.

Most recently, the Ocean Cleanup launched a team of explorers aboard a specially refitted C-130 Hercules aircraft heavily loaded with specialized sensor equipment. It discovered that the problem was worse than expected with an abundance of plastics measuring up to 1.5 m across and at a higher density than previously thought. The organization will continue to pilot the array and will start cleaning the pile before the end of the decade.

Once the plastic is out, what should we do with it? The foundation (基金会) hopes that the plastic from the ocean will have a commercial value which can help to fund the project. Ocean plastic is not easy to use, it’s mixed by nature consisting of everything from intact PET bottles to micro plastics. However, some of the world's biggest companies also see the chance to market oceans plastic products.

Transforming today’s plastics economy from its present form (take-make-waste) to a zero waste circular economy (take-make-take-make) is a difficult challenge. However, with cooperative action from producers, recyclers, governments and consumers alike and continuing innovation (革新) it can be done.

1.What’s Boyan Slat’s idea about?

A.A way to collect ocean plastic waste.

B.A new product made of ocean plastic.

C.A machine to recycle plastic garbage.

D.An organization to research into plastic.

2.Which of the following can replace the underlined word “density” in Paragraph 4?

A.Flexibility. B.Thickness.

C.Width. D.Strength.

3.What do some biggest companies expect of the ocean plastic?

A.It’ll be turned into treasure. B.It’ll sponsor the foundation.

C.It’ll cooperate with the government. D.It’ll take the form of take-make-waste.

4.Where is this text most likely from?

A.A diary. B.A guidebook.

C.A novel. D.A magazine

高三英语阅读理解中等难度题查看答案及解析

听下面一段较长对话，回答以下小题。

1.What is the general idea the woman has on modern art?

A. She thinks very highly of it.

B. She thinks most of the modern art is good，and only a small part of it is bad.

C. She does not think that the modern artists are serious towards their works.

2.Why does the man want to stop discussing the matter of modern art?

A. Because he thinks he will lose the argument soon.

B. Because he thinks it is no good talking about the problem any more.

C. Because he knows his opinions on modern art do not sound reasonable enough.

3.What will the woman most probably do if there is a modern art exhibition near her house?

A. Do anything except visit the show.

B. Visit the show alone.

C. Spare some time to take some photos of it.

高三英语长对话简单题查看答案及解析

Since ancient times, people have known about its ability to reduce pain and high body temperature. More than 2000 years ago, the Greek doctor Hippocrates advised his patients to chew on the bark and leaves of the willow.

The tree contains a chemical called salicin（柳醇）. From salicin, researchers in the 1800s discovered how to make salicylic acid（酸）. And in 1897, a chemist named Felix Hoffmann at Friedrich Bayer and Company in Germany created acetyl salicylic acid. Later it became the active substance in a new medicine that Bayer called aspirin. The "a" came from acetyl. The "spir" came from the spirea plant, which also produces salicin. And the "in" Well, that is a common way to end medicine names.

In 1982, a British scientist shared the Nobel Prize in Medicine in part for discovering how aspirin works. Sir John Vane found that aspirin blocks the body from making natural substances called prostaglandins（前列腺素）.Prostaglandins have several effects on the body. Some cause pain and the expansion, or swelling（ 肿瘤; 膨胀）, of damaged tissue. Others protect the lining of the stomach and small intestine. Prostaglandins also make the heart, kidneys and blood vessels （血管）work well. But there is a problem. Aspirin works against all prostaglandins, good and bad. Scientists learned how aspirin interferes with an enzyme（酶）. One form of this enzyme makes the prostaglandin that causes pain and swelling. Another form of the enzyme creates a protective effect. So aspirin can reduce pain and swelling in damaged tissues. But it can also harm the inside of the stomach and small intestine（肠）.

1.What sickness can the medicine from the willow deal with according to the passage?

A. Cold        B. Toothache         C. Cancer        D. Skin disease

2.What can we know about Prostaglandin according to the passage?

A. It results from pain.

B. It prevents the lining of the stomach and small intestine.

C. It causes blood vessels to work wrongly.

D. It is sometimes good but sometimes bad.

3.What can we know about aspirin according to the passage?

A. Aspirin can treat almost diseases.

B. Aspirin can create the protective enzyme.

C. Aspirin can harm the inside of the stomach and small intestine.

D. Aspirin can protect the inside of the stomach and small intestine.

高三英语阅读理解中等难度题查看答案及解析

Fish have different personalities which change as they experience life’s highs and lows．according to British biologists．

Researchers identified different“personalities” in their fish by observing the boldness or shyness of individuals，according to The Nature．Like people，some fish are very confident in the face of novelty(新奇事物)or conflict；while others are silent and fear．

The scientists selected particularly bold and shy rainbow trout，and tested whether they changed their outlook depending on what life threw at them．They arranged some fish to fight and others to  watch to  see how both the participants  and  observers  responded to victories  and defeats．Winning or losing a fight，or even watching fellow fish overcome the difficulties influenced the future behavior of the creatures studied in the lab．

The researchers made fish compete with much larger or smaller opponents．to ensure that they would win or lose their fights．These bold fish that won their fights tended to be even bolder when later presented with  a novel food  item；losing their fight caused them to be  much more cautious．

Fish also learn by watching others．Bold fish watching a shy fish exploring a mystery object were much more nervous when later given a novelty item for themselves．

Predictably，shy fish that won a fight also gained more confidence，but surprisingly，shy fish that lost their fights also grew bolder when exploring strange new food，Sneddon said，adding that this could be due to what she calls a“desperado effect”(亡命徒效应)．

The new research suggests that animals can gradually adapt their personalities．The results echo the effects that life experience can have on human．

1.What does．the underlined word“creatures’’probably refer to?

A．Fish．            B．Participants．      C．Observers．       D．Researchers．

2.The third paragraph of the text is mainly about—————．

A．a conclusion of the research

B．an explanation of fish characters

C．a statement of the experiment

D．a description of fish fights

3.What can we know from the research?

A．Bold losing fish become—e bolder when presented With a novel food item．

B．Losing their fights causes the bold fish to be much more courageous．

C．Bold fish watching a shy fish exploring a mystery get less nervous．

D．Shy fish losing fights grow more confident in exploring new food．

4.What’s the main idea of the text?’

A．Fish have stress in the fierce fights．

B．Fish care about winning or losing a fight．

C．Fish have adaptable personalities．

D．Fish can learn a lot by watching others．

高三英语阅读理解中等难度题查看答案及解析

With high rents and low wage growth, it's hardly surprising that young adults increasingly rely on parents for financial support. 1. A survey last year estimated that the $500 billion in financial help that parents give adult children is double what those same parents manage to save for retirement. Nearly 75% parents reported they put their adult kids' needs ahead of retirement.

2. The less you have saved for retirement, the more likely you will feel money-stressed in retirement---that' s not the goal, right? —and you may end up needing to rely on your kids for help in your later years. That' s surely not an outcome the entire family wants.

The decision to provide financial support for an adult child is, of course, personal. That said, if you have even the tiniest worries about retirement security, you owe it to your entire family to reconsider your support. Not overnight, but by setting a timeline expectation for when your child will be independent. 3.

Let adult kids contribute to family expenses. Once an adult child has a job, even if they are still living at home, it's time to have them participate in paying bills. At least, they should pay their share of a family cellphone plan.

4. Helping an adult child get established is one thing, but often help can extend into financing a nicer — than — needed lifestyle. For example, give money for groceries so they don't exist on a poor diet. 5. However, buying for a new car (which should be a used car) or contributing to rent for their own place (rather than shared) is you not setting smart limits.

Anyway, you must have enough savings to take care of yourself.

A.Set limits on what you will help with.

B.Make a major financial sacrifice for adult kids.

C.Besides, helping rent a shared apartment is also reasonable.

D.While the support is financial, we' re not talking pocket money.

E.And most importantly, you can also establish clear financial boundaries.

F.You should reduce your budget to come up with the extra cash to help.

G.Parents who make that choice could set everyone up for a difficult future.

高三英语七选五困难题查看答案及解析

With the development of modern society and high technology, children wear more and more beautiful and fashionable clothes. More children 1.(allow) to choose their favorite clothes, which is 2.relatively new trend. Many years ago, children had to suffer the whims(突发奇想)of adults as far as clothes were concerned. Like 3.(adult) clothes, children’s clothes followed fashions as well. About 120 years 4., boys in Europe and America wore white ankle-length dresses, just like their sisters, until they 5.(reach) the age of five. Older boys from wealthy 6.(family) were then dressed in pretty velvet(丝绒) suits 7.lace collars. Their hair was grown to shoulder length 8.longer. For many unlucky boys, these carefully planned and organized costumes were nor reserved for special occasions; they had to wear the same 9.(restrict)and uncomfortable outfits for everyday play. Clean and proper clothes say that the person has both self-respect and respect for other people. Clothing can tell quite a lot about the person, sometimes more than we would like to reveal. So we should pay more attention to 10.(wear) proper clothes in different occasions.

高三英语短文填空中等难度题查看答案及解析

They felt ________ it was high tax and low income ________ contributed to the extreme misery of the working people at the bottom of the ladder.

A. /；that  B. that; which  C. that; what  D. /; which

高三英语单项填空困难题查看答案及解析