Have you heard of snake robots? Scientists an...

Have you heard of snake robots? Scientists and doctors are already using tiny snakes that coil through the human body armed with sharp surgical tools to perform operations on hearts, prostate cancer, and other diseased organs. The snake robots that carry tiny cameras, scissors and forceps, and even more advanced sensors are being developed.

The next generation of the robots will be wireless, and will explore inside your body on their own--- not attached to any cables. For now, they are powered by cables that humans control. Experts say the day is coming when some robots will roam around the body on their own. But the experts in robotics say the new creations work best when they are designed for very specific tasks.

Howie Choset has been researching and building robots, particularly snake robots. He believes that his snake robot and others like it can help reduce medical costs by making complex surgery faster and easier. Choset says his new design is smaller and more flexible than earlier models.

The size of surgical robots allows surgeons to operate with far less damage to the body, helping the patient heal faster. Choset has also built larger snake robots designed for search and rescue, or just exploration. They can climb poles and trees and then look around through a camera in the head and slither through places that humans cannot reach.

“ We sent our snake robots into these caves in the Red Sea to look for evidence of ancient Egyptian ships,” he said. “ To me, archeology is like search and rescue, but everyone has been dead for 5,000 years.”

The doctors are very excited about the potential for surgical robots to do things that humans can’t do. The variety of sensors available for surgical robots keeps expanding. As they get smaller, maybe one day they will be able to test chemicals or blood in the body, or even the electrical connections in nerves.

1.What can we learn from the first paragraph?

A．The doctors carry out surgery using snake robots mainly for heart disease.

B．The doctors are very satisfied with the new snake robots during surgery.

C．Snake robots are completely free of human control today.

D．Other supplementary appliances will be added to snake robots.

2.Which of the following is true, according to the passage?

A．Snake robots are only used in the medical field.

B．Snake robots can reduce the patients’ medical costs.

C．Scientists are uncertain about the prospects for snake robots.

D．Scientists are forced to spend a lot of time researching snake robots.

3.How can snake robots work best, according to the passage?

A．When they carry tiny cameras, scissors and forceps.

B．When they are operated by experienced doctors.

C．When they are given a wireless function.

D．When they are designed for particular tasks.

4.Why do we know about Howie Choset, according to the passage?

A．He thought snake robots of different sizes can be used for different types of surgery.

B．He thought patients’ pain had been slightly reduced with the help of snake robots.

C．He also made snake robots for search, rescue and exploration.

D．He is very interested in researching ancient Egyptian ships.

5.The writers attitude towards the new technology is ______.

A．optimistic         B．doubtful           C．objective          D．negative

高二英语阅读理解中等难度题查看答案及解析

Scientists are using robots to study the health of waters in and around Venice，Italy．The robots are designed to act like fish，other underwater creatures and plants．The scientists are working with several universities and research centers as part of a group called subCULTron．The European Union gives money to the project as part of its Horizon 2020 program whose aim is to take great ideas from the lab to the market and support science and innovation(创新)in Europe．The scientists want to use the artificial intelligence of the robots to help humans understand what is happening under the water of the Venice lagoon(潟湖)．

SubCULTron．a collective artificial intelligence project，plans to create the biggest shoal (鱼群)of robot fish in the world．The project’s aim is to improve knowledge of the seabed and try to turn human abilities into hi-tech items．

Alexandre Campo，a computer scientist，says the scientists have looked at the way animals learn to work in groups to understand how robots can learn to work together．The subCULTron project wants its robots to learn to work together so they can watch out for changes and new problems in the water．

One problem the researchers had in the beginning was how the robots would communicate with each other. Wi-Fi and GPS equipment don’t work underwater．Instead，the robots can use sonar(声呐)and an electric field．

Another problem was charging batteries．The robots come up to the water’s surface and stay near a boat or a power station to charge without any electrical cables．Besides，how to be waterproof, especially for some key pads of the robots，was really tough．Fortunately, a special mixture has been created to be pinned on the robot，which successfully stands the test of water．

The health state of the lagoon is pretty good．There are no industrial polluters，and the city now has a modern sewer(污水管) system．It’s not like before when all the waste flushed directly into the water．The robots in Venice will continue their work until 2019. The subCULTron project hopes they develop into “an artificial society underneath the water surface” that serves “a human society above the water”．

1.What can we learn about the project in Paragraph l?

A. Its researchers are all from universities．

B. The European Union has financially supported it．

C. It uses robots to clean the waters in and around Venice．

D. It is aimed to support science and innovation worldwide．

2.What can we infer according to Alexandre Campo?

A. Scientists have got an idea for robots from the animals．

B. The robots are working separately to perform their tasks．

C. SubCULTron is to turn human abilities into hi-tech items．

D. The health state of the lagoon has greatly improved recently．

3.The underlined word “they” in the last paragraph probably refers to“__________”．

A. scientists　　 B. animals

C. robots　　 D. humans

高二英语阅读理解中等难度题查看答案及解析

Have you heard of John Snow in the times of Queen Victoria? John Snow___1._____ was a famous doctor attended Queen Victoria as her personal physician. But he became inspired when he thought about helping ordinary people___2.____ (expose) to cholera. This was the ___3._____(dead) disease of its day. Neither its cause _4._____ its cure was understood, ____5.____ many thousands of terrified people died. John Snow realized that cholera would never____6.____(control) until its cause was found. He began to gather the information, for which he made __7._____ map. He marked the exact place where the dead had lived on it . As a _8._____, he found out the cause of cholera and suggested the source of all water supplies be examined ___9._____(immediate). Thanks _10.______him, “King Cholera” was defeated .

高二英语其他题中等难度题查看答案及解析

The Meanings of Dreams

Sleep and dreams have interested people for centuries. Scientists are learning more about sleep, but they still know very little about why we dream.

________1.________ First, we have most of our dreams during REM (rapid eye movement) sleep. At this time, the brain is very active. Second, everyone dreams – even if we cannot remember doing so when we awaken. ________2.________ While we are asleep, it works more slowly and sometimes puts our thoughts and memories together in strange ways.

________3.________ Some believe that our dreams are associated with thoughts and feelings that we experience while we are awake. Many dream researchers think that a dream about death, for example, is really about an important life change. ________4.________ Dreams about a car or travel often represent feelings about your own life. Dreams about teeth – especially broken or loose ones may indicate stress and fear. Dreams in which you are flying often represent freedom or escape.

Researchers think people in our dreams can tell us something about ourselves. If the person in the dream was yelling (叫喊), for example, maybe you are angry. ________5.________

There is still a lot about dreaming that we do not understand. By learning more about our dreams, we may learn more about ourselves.

A．Dreams may be more important than sleep.

B．Scientists do not know for certain why we dream.

C．If he or she was terrified, then maybe you are afraid of something.

D．Modern research can tell us some important things about dreams.

E. There are three things you should pay attention to to have a sweet dream.

F. Finally, a part of our brain helps us to understand daily experiences we have.

G. Dreams about telephones are thought to be about giving or receiving an important message.

高二英语信息匹配中等难度题查看答案及解析

Scientists have created a “ human-like robot” that can dance and do the housework.

“ Mahru” has been developed to imitate humans and can move its lips, eyebrows and pupils(瞳孔). The machine can also move its upper and lower body freely and automatically stop itself when walking.

In addition, it has been programmed to give out two kinds of pleasant smells to match its emotions.

The 1.5 tall robot was produced by researchers at the Korea Institute of Science and Technology (KIST) and is the first South Korean- developed machine of its kind.

“‘Mahru’ will open the way for the commercial use of humanoid robots doing housework,” You Bum-Jae, leader of the development research team ,said. “‘Mahru’ can dance while walking on its legs and is able to work in place of a human.”

Through an advanced motion capture (捕获) system, “Mahru” can follow a variety of human movements and move its hands freely enough to deal with any obstacles that may get in its way when walking.

State-funded KIST showed the robot during a presentation at its head office in Seoul.

People here were treated to an entertaining demonstration which saw the robot show off the full range of its skills, most notably s series of dance moves.

The research team added that they had designed another “ Mahru”, this time with sensors(传感器) allowing it to distinguish(分辨) between faces and objects.

The showing of “ Mahru” came a week after researcher in Japan said they had created the “most human-like” robot in the world. A team at robotics department of Osaka University in Japan claimed that “ robogirl”, Repliee R-1, “ looks, moves and interacts (相互作用) like a human, and has silicone(硅胶) skin that feels almost human to the touch.”

1. “Mahru” made by KIST can do the following things EXCEPT____________

2. According to what You Bum- Jae said in Paragraph 5, his research team wants to ________.

3. When Mahru” meets something in its way, it will be likely to________.

4.According to the last paragraph, Repliee R-1 __________.

5.The passage is probably a  __________.

高二英语阅读理解简单题查看答案及解析

Have you ever heard of spring fever? When we have spring fever, are we really sick? Originally, yes. 1. But now people used it to mean a sudden increase of romantic feelings.

These days, we use “spring fever” to describe a restless feeling after the long, cold days of winter. 2. It is also a verb that means something happening or appearing quickly.

Imagine that you are resting in the chair when suddenly you see a mouse run across the floor. You spring into action! You jump from the chair and run after the mouse! 3. And it works! But when you tell your roommate that you caught a mouse in a trap, tears spring from her eyes. You feel badly, but she really should have told you about her pet mouse Charlie!

4. You say to her, “You can’t just spring that on me! I’ll need time to find another roommate!” But then you think that maybe it’s for the best. Every time you see her you feel guilty about Charlie. 5. She always expects you to buy her things: she wants you to spring for lunch, spring for movie tickets, and sometimes even spring for groceries.

So, when you spring for something, you pay for someone else.

A. Many people suffer a lot from it.

B. You roommate turns her back on you.

C. But the word “spring” is not just a season.

D. Spring fever used to refer to an actual illness.

E. Then your roommate is moving out tomorrow.

F. That night you spring a trap with some cheese in it.

G. And anyway, she does something that really annoys you.

高二英语七选五中等难度题查看答案及解析

We have all heard of giant pandas, and know that they are endangered. When one has babies, it makes national news_______, and pictures of their babies are_____　　 circulated. But it now seems that the giant panda is not ______ of itself.

The lovely animals have ______ a classic test of self-awareness. They cannot　　 ____ themselves in the mirror. Researchers use the mirror recognition test to ____　 whether children or animals have a ______ of self-awareness.

In the test, an animal is presented ______ a mirror. Researchers then watch to see ______ it notices a mark on its face, which is only_______ in the mirror. If the animal notices the mark, it often ______ it. Human children often pass the test when they are only two years old.

Many other animals have passed the mirror test, including monkeys, Asian elephants and even pigeons. But when researchers tested pandas, ______ of them did the same thing as those animals did. ______, each panda behaved as if their_____　　 in the mirror was another panda altogether. They acted as if they were_______ by what they saw in the mirror, scratching their feet and walking_______.

The________of this research will help design better areas for animals in captivity (圈养). For example, one-directional glass sometimes used in the areas may　　 ____ pandas to feel stressed when they see their own image in the ______. That’s because they might believe it to be another panda,________themselves.

1.A. papers　　 B. covers　　 C. headlines　　 D. pages

2.A. widely　　 B. popularly　　 C. especially　　 D. completely

3.A. shy　　 B. fond　　 C. conscious　　 D. confident

4.A. failed　　 B. ignored　　 C. faced　　 D. conducted

5.A. observe　　 B. discover　　 C. recognize　　 D. understand

6.A. believe in　　 B. find out　　 C. pick out　　 D. take in

7.A. sense　　 B. question　　 C. opinion　　 D. thought

8.A. for　　 B. with　　 C. in　　 D. before

9.A. how　　 B. when　　 C. why　　 D. whether

10.A. touchable　　 B. seeable　　 C. sensible　　 D. possible

11.A. dismisses　　 B. admits　　 C. feels　　 D. moves

12.A. all　　 B. most　　 C. one　　 D. none

13.A. Thus　　 B. However　　 C. Instead　　 D. Still

14.A. reaction　　 B. reflection　　 C. operation　　 D. imagination

15.A. trapped　　 B. amazed　　 C. threatened　　 D. teased

16.A. backwards　　 B. alone　　 C. forwards　　 D. along

17.A. failure　　 B. outcome　　 C. success　　 D. review

18.A. cause　　 B. prepare　　 C. accelerate　　 D. urge

19.A. eyes　　 B. cages　　 C. zoo　　 D. glass

20.A. other than　　 B. regardless of　　 C. because of　　 D. rather than

高二英语完形填空中等难度题查看答案及解析

Have you ever heard of blogs (博客)? If you haven’t, you should have. It’s here, it’s growing and it’s having an influence on our life. Surf the Internet and you’ll find blogs everywhere. A blog, shortened from “weblog”, is a public Internet journal written by one person or a group of people. It is a website in which a person or a group can place news, personal thoughts, text, photos, video or audio files, or links upon which visitors can comment. A blog lets you post on the Internet without having to know web design or be technical. You are given an environment to make dated entries on the topic of your choice which are “published”, so other people can read them.

Authoring a blog, maintaining a blog or adding an article to an existing blog is called “blogging”. Blogging has revolutionized Internet publishing in the last several years because it gives everyone with Internet access the opportunity to become an online writer. Objects, such as “text and photos” in a blog can be called “blog posts”, “posts”, or “entries”. The person who posts these entries is called a “blogger”.

Now, somewhere around the world, a blog is created almost every 6 seconds. Because it’s great potential, Bill Gates views it as important as e-mail, BBS, and MSN. He’s trying to make blogs the important tools for future business communications.

1.A blog is __________ .

2.A person can do the following things in a blog EXCEPT _______.

3.Who is a blogger?

4.From the passage we know that _________.                  .

高二英语阅读理解中等难度题查看答案及解析

Have you ever heard of blogs (博客)? If you haven’t, you should have. It’s here, it’s growing and it’s having an influence on our life. Surf the Internet and you’ll find blogs everywhere. A blog, shortened from “weblog”, is a public Internet journal written by one person or a group of people. It is a website in which a person or a group can place news, personal thoughts, text, photos, video or audio files, or links upon which visitors can comment. A blog lets you post on the Internet without having to know web design or be technical. You are given an environment to make dated entries on the topic of your choice which are “published”, so other people can read them.

Authoring a blog, maintaining a blog or adding an article to an existing blog is called “blogging”. Blogging has revolutionized Internet publishing in the last several years because it gives everyone with Internet access the opportunity to become an online writer. Objects, such as “text and photos” in a blog can be called “blog posts”, “posts”, or “entries”. The person who posts these entries is called a “blogger”.

Now, somewhere around the world, a blog is created almost every 6 seconds. Because it’s great potential, Bill Gates views it as important as e-mail, BBS, and MSN. He’s trying to make blogs the important tools for future business communications.

1.A blog is ________.

A．a comment        B．an Internet journal   C．a design           D．a link

2.A person can do the following things in a blog EXCEPT _______.

A．talk to others       B．give comments     C．read articles       D．enjoy photos

3.Who is a blogger?

A．A person who posts letters.

B．A person who writes articles.

C．A person who posts text or photos in a blog.

D．A person who is an online publisher.

4.According to the passage, the reason why blogs are so popular is that they ____.

A．give everyone the chance to be an online writer

B．can be created by people without much knowledge of computer technology

C．enable a blogger to place news, personal thoughts, text and photos and give comments

D．all of the above

高二英语阅读理解中等难度题查看答案及解析

Have you ever heard of blogs (博客)? If you haven’t, you should have. It’s here, it’s growing and it’s having an influence on our life. Surf the Internet and you’ll find blogs everywhere. A blog, shortened from “weblog”, is a public Internet journal written by one person or a group of people. It is a website in which a person or a group can place news, personal thoughts, text, photos, video or audio files, or links upon which visitors can comment. A blog lets you post on the Internet without having to know web design or be technical. You are given an environment to make dated entries on the topic of your choice which are “published”, so other people can read them.

Authoring a blog, maintaining a blog or adding an article to an existing blog is called “blogging”. Blogging has revolutionized Internet publishing in the last several years because it gives everyone with Internet access the opportunity to become an online writer. Objects, such as “text and photos” in a blog can be called “blog posts”, “posts”, or “entries”. The person who posts these entries is called a “blogger”.

Now, somewhere around the world, a blog is created almost every 6 seconds. Because it’s great potential, Bill Gates views it as important as e-mail, BBS, and MSN. He’s trying to make blogs the important tools for future business communications.

1.A blog is ________.

A．a comment        B．an Internet journal   C．a design           D．a link

2.A person can do the following things in a blog EXCEPT _______.

A．talk to others       B．give comments     C．read articles       D．enjoy photos

3.Who is a blogger?

A．A person who posts letters.

B．A person who writes articles.

C．A person who posts text or photos in a blog.

D．A person who is an online publisher.

4.From the passage we know that ________.

A．Bill Gates will invent some tools for blogs

B．blogs will be an important business communication tool in the future

C．so far, only a few persons have created blogs

D．blogs will replace e-mail, BBS and MSN in the future

5.According to the passage, the reason why blogs are so popular is that they ____.

A．give everyone the chance to be an online writer

B．can be created by people without much knowledge of computer technology

C．enable a blogger to place news, personal thoughts, text and photos and give comments

D．all of the above

高二英语阅读理解中等难度题查看答案及解析