-----Why are you just sitting here while they...

-----Why are you just sitting here while they are rushing off their feet?

-----How can I help _______ they won’t let me?

A. though　　 B. in case　　 C. when　　 D. as

高三英语单项填空中等难度题查看答案及解析

Plants are boring. They just sit there photosynthesizing （光合作用） while animals have all the fun. Right? Not so much. A new study has found that there is a long history of interactions between ants and plants. The ant and plant co-evolution （协同进化） started with ants feeding on plants and plants evolving ant-friendly features.

Plants make a number of different structures that are specific for ant use. Some plants have evolved features that persuade ants into defending them from attack from other insects and even mаmmаlѕ. Тhеѕе іnсludе hollow thorns that аntѕ will live іnѕіdе, or ехtra nесtаr (琼浆) оn lеаvеѕ or stems for the ants to eat. Some ants will just cheat and take the nectar and run, but some will stick around and attack anything that tries to hurt the plant. Other plants get ants to help them move their seeds around, by providing them with rich food packets attached to the seeds. The ant will pick up the seed and carry it away, eat the food packet, and leave the seed - often in a nutrient-rich area where it'll grow better, and since it's farther away from its parent, they won't have to compete for resources.

But scientists weren't sure how the evolutionary relationship between ants and plants got started. If evolution is an arms race between species developing ways to make use of their neighbors, then scientists wanted to know whether plants or ants fired the first shot. It was a chicken-and-egg question, whether things started with ants developing behaviors to take advantage of plants, or plants evolving structures to take advantage of ants.

The history of ants and plants evolving together goes back to the time of the dinosaurs, and it's not easy to tell from fossils who fired the first shot. However, it is a question of little significance. Scientists say their study maters because it provides a look at how these widespread and complex interactions evolved.

1.Some plants attach food packets to their seeds in order to　　　　　 .

A.reward the ants B.make a fool of ants

C.provide nutrition for the seeds D.get the seeds moved around

2.What does Paragraph 2 mainly tell us?

A.How plants and ants interact. B.What ants do to protect plants.

C.How plants and ants survive attacks. D.Why plants and ants need co-evolution.

3.Which is true about the evolutionary relationship between ants and plants?

A.Ants depended more upon plants. B.It caused a race for better evolution.

C.How it got started was uncertain. D.It was of little value for future studies.

4.What's the author’s purpose of writing the passage?

A.To introduce a science research method.

B.To inform readers of a latest research finding

C.To arouse readers' interest in science research.

D.To criticize people's traditional views about plants.

高三英语阅读理解简单题查看答案及解析

Why do some people feel obliged to do the craziest things, while most of us are happy to sit on the sofa and watch their exploits on TV? Robin Styles ponders(考虑)this question.

Generally, we love to watch someone's bravery and drama--a single person against the wilds of nature, testing their endurance beyond belief. And our pleasure is greater because we live a comfortable and increasingly risk-free life, where the greatest test of endurance is getting to work through the rush hour. 1.However, there are countless ways to test the limits of your endurance, if you should wish to do so, by attempting something unpleasant, uncomfortable or just plain dangerous.

American Lynne Cox swims in sub-zero temperatures through the planet's most dangerous oceans wearing only a swimsuit--for fun! According to Lynne, there is always something driving her on. At age 9, when she was swimming in an outdoor pool one day, a violent storm blew up, but she refused to get out of the pool. Something make her carry on. Then she realized that, as the water got colder and rougher, she was actually getting faster and warmer, and she was really enjoying it. At age 14, she broke her first endurance record. Years later, experts discovered that Lynne has a totally even layer of body fat, like a seal. 2..

The famous British explorer, Sir Ranulph Fiennes, has led many major expeditions (远征) in the extreme cold, including walking right round the Arctic Circle. He has also led expeditions in the extreme heat, and discovered the Lost City of Ubar in the Omani desert. 3.Sir Fiennes has said, "If I am getting sick, I find a very powerful way of conquering it is to know that my father would have definitely done it."

4.There is probably no such thing as a "normal" adventurer. Unsurprisingly, risk-takers tend to be single-minded and unusually determined people who hate the stability and routine that most people prefer. They tend to take risks for the "fun" of it. The excitement becomes addictive, and they want more and more of it. Ordinary life seems boring in comparison.

A. She is perfectly made for doing what she does, it seems.

B. Adventurers are clearly different from the rest of us.

C What she did was really beyond our imagination.

D. It seems that many adventurers spend their lives trying to live up to the image of a parent.

E. And most of us would prefer it to remain that way.

F. Many adventurers have amazed the world with their extraordinary skills.

高三英语七选五中等难度题查看答案及解析

Just as John Lubbock said, we may sit in a library and yet be in all quarters of the earth. Here are some of the coolest libraries of the world.

Stuttgart City Library

Despite a classic white-on-white color, Stuttgart City Library is one of the most visually appealing modern libraries. The amazing modem and simple look is the product of the Korean architect Yi Eun-young. The German library opened in 2011, and cost nearly 80 million euros to construct.

Kanazawa Umimirai Library

Architects from the Coelacanth K&H Architects studio designed the Kanazawa Umimirai Library lo create the best reading environment. Healed floors, an outpouring of natural light, and other features were specifically included lo achieve this goal. The wall, which consists of thousands of tiny openings, allows natural lighting into the building, improving the overall feel of the space. This Japanese library was opened in 2011, and reflects the appearance of many modem and simple spaces.

Library of Congress

In 1800, Congress set up the Library of Congress in Washington D.C.. Fifteen years later, Thomas Jefferson offered his personal library to replace books that were lost when the British set the building on fire in 1814. His books, which took nearly 50 years to collect, varied from texts on science, literature and philosophy, to books in a variety of foreign languages. These days, the Library of Congress offers more than 155 million items and the largest rare book collection in North America.

State Library of Victoria

The Slate Library of Victoria, located in Melbourne, Australia, is one of the largest exhibiting libraries in the world. Though it opened in 1856, major repairs took place between 1990 and 2004. The La Trobe Reading Room is one of the library’s main attractions due to its visually amazing architecture. The lawn at the library’s front attracts hundreds of city folk each day, who gather for lunch or to enjoy the statues there. The library currently contains over two million books, as well as armor (盔甲) of Ned Kelly, a folk hero against the ruling class.

1.Which library has the longest history?

A. Stuttgart City Library. B. Kanazawa Umimirai Library.

C. Library of Congress. D. State Library of Victoria.

2.What’s special about Stale Library of Victoria?

A. It has great architecture.

B. It has a folk hero’s statue in it.

C. It is the world’s largest exhibiting library.

D. It serves as a meeting place for the citizens.

3.What does the first two libraries have in common?

A. They are constructed in the modem style.

B. They cost a large amount of money.

C. They are designed by Korean architects.

D. They feature providing readers with natural light.

高三英语阅读理解中等难度题查看答案及解析

While elephants born without tusks (长牙)are not unheard of，they normally form just 2 to 6 percent of the population. However, that is not the case at Mozambique’s Gorongosa National Park, where an astonishing 33 percent of female elephants born after the country’s civil war ended in 1992 are tuskless. While that may appear to be just a coincidence, Joyce Poole, an elephant behavior expert, has another theory. The researcher thinks we may be witnessing unnatural evolution of the species due to the constant hunting of elephants for valuable ivory.

Poole says before the country’s 15-year-long civil war, the 100,000—acre park was home to over 4,000 elephants. However, by the time the conflict ended in 1992, about 90 percent of them had been killed for ivory to help finance weapons (武器)and meat to feed the soldiers. Of the less than 200 survivors, over 50 percent of adult females had no tusks. Therefore, it is not surprising that the park’s tuskless elephant population has grown greatly.

This is not the first time researchers have observed a great change in the population of elephants. At Zambia’s South Luangwa National Park and Lupande Game Management Area， areas which were heavily hunted in the 1970s and 1980s, 35% of elephants 25 years or older and 13% of those younger than 25 are now without tusks. A 2008 study published in the African Journal of Ecology found that the number of tuskless females at the Ruaha National Park in Tanzania went from 10.5 percent in 1969 to almost 40 percent in 1989, largely due to illegal hunting for ivory.

The recent ban on ivory in both the US and China should help get rid of, or at least reduce, elephant hunting. However, scientists are not sure how long it will take for elephants with a higher rate of tuskless females, to change the trend.

1.What is the probable cause of the phenomenon mentioned in Paragraph 1 ?

A. Illegal hunting. B. Constant farming.

C. A pure coincidence. D. Natural evolution.

2.Why did people kill so many elephants during the civil war in Mozambique?

A. To get funds by selling ivory. B. To develop new weapons.

C. To provide food for local people. D. To make ivory products.

3.Which of the following had the earliest record on tuskless elephants?

A. Gorongonsa National Park. B. South Luangwa National Park.

C. The Ruaha National Park. D. Lupande Game Management Area.

4.What does the underlined phrase “the trend”in the last paragraph refer to?

A. Elephants facing greater danger.

B. Elephants growing more slowly.

C. Fewer female elephants staying alive.

D. More female elephants being tuskless.

高三英语阅读理解困难题查看答案及解析

Auctions(拍卖行) are everywhere. Here are just a few standouts and some of the areas they specialize in. All have brick-and-mortar(实体的) sales rooms in addition to online buying.

Leslie Hindman Auctioneers

Headquarters(总部): Chicago

Founded: 1982

Best bets: contemporary art, jewelry

The founder, Leslie Hindman, has been on an expansion kick from her Chicago base and now runs eight offices across the country. Ms. Hindman said that plenty of items sell at her house for around $500. As in the auction world generally, jewelry and contemporary art receive lots of attention from bidders(出价者)， and in2017 a diamond ring sold for $97,000.

Swann Auction Galleries

Headquarters: New York

Founded: 1941

Best bets: books, works on paper, African-American art

Founded as a rare-book auctioneer, Swann still holds dozens of such sales a year. The president, Nicholas D. Lowry, noted that Swann was the first auction house to sell old photographs, in 1952.The house has also had a department of African-American art for 12 years.

Stair Galleries

Headquarters: Hudson, N.Y.

Founded: 2001

Best bets: English and Continental furniture and paintings, modern and contemporary art

Colin Stair, the founder and president, comes from a long line of antiques dealers (商人). Stair is frequented by dealers and bargain hunters, and it's a place to find interesting things like a George I carved walnut wing armchair, coming up as part of a sale on April 28 and 29.

Heritage Auctions

Headquarters: Dallas

Founded: 1983

Best bets: coins, sports memorabilia, movie posters

With roots in coin auctions, Heritage has grown quite large. But their bread and butter are items that the company president, Greg Rohan, calls "the kinds of things that everyone has. " "People aren’t buying what were selling for decoration or for resale, " he added. "They’re buying things they absolutely love. "

1.At which place can you buy old photographs?

A.Stair Galleries. B.Heritage Auctions.

C.Swann Auction Galleries. D.Leslie Hindman Auctioneers.

2.Who once sold antiques?

A.Colin Stair. B.Greg Rohan. C.Leslie Hindman. D.Nicholas D. Lowry

3.What can be learned about these auctions?

A.They all have online shops.

B.They all sell valuable artworks.

C.They are all run by local people.

D.They are all located in New York.

高三英语阅读理解中等难度题查看答案及解析

—Why are you moving out?

—________， but I just don't like the atmosphere here.

A．No offence　     B．No worries

C．No problem　     D．No doubt

高三英语单项填空中等难度题查看答案及解析

It’s good to make mistakes, and here is why.

First of all, mistakes are a clear sign that you are trying new things. It’s always good to try new things because when you are trying new things you are growing. If you never try anything new, how can you improve? How can you expand? The simple answer is “You can’t”. Look around you. With very few exceptions (例外), either everything you see in your physical world or every single detail of every single thing is the result of someone trying something new.

Another good thing about mistakes is this: When you are making mistakes, you are learning. Consider this: Edison failed 10,000 times before he perfected the light bulb. When asked how it felt to fail that many times, he said that he hadn’t failed 10,000 times, but rather had learned 10,000 things that didn’t work.

Finally, when you make a mistake you are much closer to success. Why?

Because when all is said and done, you will have tried some number of things before you succeeded. Every time you make a mistake you eliminate one of those things and are one step closer.

But this all doesn’t mean that you should go ahead without considering the consequences of a mistake. Quite the contrary, when you try something new you have to be willing to set some reasonable limits so that in the event that it doesn’t work out the way you want it to, you will be in a position to try again.

We all have limited resources in the form of time and money so don’t blow them all on one approach to a problem. Realize that it probably won’t be perfect the first time and allocate (分配) these resources appropriately so you can learn, make corrections, and try it again. Only by accepting and using your mistakes in this way can you make significant advances in your business and your career.

There is an old saying that goes, “If you’re not making mistakes, you’re not trying hard enough.”

So go forth and make mistakes. And learn. And grow. And prosper(成功).

1.From the second paragraph, we can conclude that _______.

2.The underlined word “eliminate” means _______.

3.According to the article, one thing you should pay attention to about making mistakes is _______.

4.The article is mainly about _______.

5.What would the writer probably suggest we say to ourselves when we make a mistake?

高三英语阅读理解中等难度题查看答案及解析

It’s good to make mistakes, and here is why．

First of all, mistakes are a clear sign that you are trying new things． It’s always good to try new things because when you are trying new things you are growing． If you never try anything new, how can you improve? How can you expand? The simple answer is “You can’t”． Look around you． With very few exceptions, either everything you see in your physical world or every single detail of every single thing is the result of someone trying something new．

Another good thing about mistakes is this: When you are making mistakes, you are learning． Consider this: Edison failed 10,000 times before he perfected the light bulb． When asked how it felt to fail that many times, he said that he hadn’t failed 10,000 times, but rather had learned 10,000 things that didn’t work．

Finally, when you make a mistake you are much closer to success． Why?

Because when all is said and done, you will have tried some number of things before you succeeded． Every time you make a mistake you eliminate one of those things and are one step closer．

But this all doesn’t mean that you should go ahead without considering the consequences of a mistake． Quite the contrary, when you try something new you have to be willing to set some reasonable limits so that in the event that it doesn’t work out the way you want it to, you will be in a position to try again．

We all have limited resources in the form of time and money so don’t blow them all on one approach to a problem． Realize that it probably won’t be perfect the first time and allocate （分配） these resources appropriately so you can learn, make corrections, and try it again． Only by accepting and using your mistakes in this way can you make significant advances in your business and your career．

There is an old saying that goes, “If you’re not making mistakes, you’re not trying hard enough．”

So go forth and make mistakes． And learn． And grow． And prosper（成功）．

1.From the second paragraph, we can conclude that _______．

2.The underlined word “eliminate” means _______．

3.According to the article, one thing you should pay attention to about making mistakes is________．

4.What would the writer probably suggest we say to ourselves when we make a mistake?

高三英语阅读理解中等难度题查看答案及解析

It’s good to make mistakes, and here is why．

First of all, mistakes are a clear sign that you are trying new things． It’s always good to try new things because when you are trying new things you are growing． If you never try anything new, how can you improve? How can you expand? The simple answer is “You can’t”． Look around you． With very few exceptions, either everything you see in your physical world or every single detail of every single thing is the result of someone trying something new．

Another good thing about mistakes is this: When you are making mistakes, you are learning． Consider this: Edison failed 10,000 times before he perfected the light bulb． When asked how it felt to fail that many times, he said that he hadn’t failed 10,000 times, but rather had learned 10,000 things that didn’t work．

Finally, when you make a mistake you are much closer to success． Why?

Because when all is said and done, you will have tried some number of things before you succeeded． Every time you make a mistake you eliminate one of those things and are one step closer．

But this all doesn’t mean that you should go ahead without considering the consequences of a mistake． Quite the contrary, when you try something new you have to be willing to set some reasonable limits so that in the event that it doesn’t work out the way you want it to, you will be in a position to try again．

We all have limited resources in the form of time and money so don’t blow them all on one approach to a problem． Realize that it probably won’t be perfect the first time and allocate （分配） these resources appropriately so you can learn, make corrections, and try it again． Only by accepting and using your mistakes in this way can you make significant advances in your business and your career．

There is an old saying that goes, “If you’re not making mistakes, you’re not trying hard enough．”

So go forth and make mistakes． And learn． And grow． And prosper（成功）．

1.From the second paragraph, we can conclude that _______．

A．mistakes are unnecessary for development

B．we are afraid of trying new things

C．it’s common for people to make mistakes

D．mistakes are better than not trying

2.The underlined word “eliminate” means _______．

A．avoid             B．remove           C．accept            D．solve

3.According to the article, one thing you should pay attention to about making mistakes is________．

A．avoiding making the same mistakes

B．accepting the punishment willingly

C．taking consequences into account

D．trying things out one by one

4.What would the writer probably suggest we say to ourselves when we make a mistake?

A．Never mind, I can always try again．

B．I’d better stay out of trouble．

C．Ok! Now I can learn something．

D．Look at this mess． Anyone would be upset．

高三英语阅读理解中等难度题查看答案及解析