Far from the land of Antarctica, a huge shelf of ice meets the ocean. At the underside of the shelf there lives a small fish, the Antarctic cod.
For forty years scientists have been curious about that fish. How does it live where most fish would freeze to death? It must have some secret. The Antarctic is not a comfortable place to work and research has been slow. Now it seems we have an answer.
Research was begun by cutting holes in the ice and catching the fish. Scientists studied the fish’s blood and measured its freezing point.
The fish were taken from seawater that had a temperature of -1.88℃ and many tiny pieces of ice floating in it. The blood of the fish did not begin to freeze until its temperature was lowered to -2.05℃. That small difference is enough for the fish to live at the freezing temperature of the ice-salt mixture.
The scientists’ next research job was clear: Find out what in the fish’s blood kept it from freezing. Their search led to some really strange thing made up of a protein never before seen in the blood of a fish. When it was removed, the blood froze at seawater temperature. When it was put back, the blood again had its antifreeze quality and a lowered freezing point.
Study showed that it is an unusual kind of protein. It has many small sugar molecules held in special positions within each big protein molecule. Because of its sugar content, it is called a glycoprotein. So it has come to be called the antifreeze fish glycoprotein. Or AFGP.
1.What is the text mainly about?
A.The terrible conditions in the Antarctic.
B.A special fish living in freezing waters.
C.The ice shelf around Antarctica.
D.Protection of the Antarctic cod.
2.Why can the Antarctic cod live at the freezing temperature?
A.The seawater has a temperature of -1.88℃.
B.It loves to live in the ice-salt mixture.
C.A special protein keeps it from freezing.
D.Its blood has a temperature lower than -2.05℃.
3.What does the underlined word “it” in Paragraph 5 refer to?
A.A type of ice-salt mixture. B.A newly found protein.
C.Fish blood. D.Sugar molecule.
4.What does “glyco-” in the underlined word “glycoprotein” in the last paragraph mean?
A.sugar B.ice
C.blood D.molecule
高一英语阅读理解简单题
Far from the land of Antarctica, a huge shelf of ice meets the ocean. At the underside of the shelf there lives a small fish, the Antarctic cod.
For forty years scientists have been curious about that fish. How does it live where most fish would freeze to death? It must have some secret. The Antarctic is not a comfortable place to work and research has been slow. Now it seems we have an answer.
Research was begun by cutting holes in the ice and catching the fish. Scientists studied the fish’s blood and measured its freezing point.
The fish were taken from seawater that had a temperature of -1.88℃ and many tiny pieces of ice floating in it. The blood of the fish did not begin to freeze until its temperature was lowered to -2.05℃. That small difference is enough for the fish to live at the freezing temperature of the ice-salt mixture.
The scientists’ next research job was clear: Find out what in the fish’s blood kept it from freezing. Their search led to some really strange thing made up of a protein never before seen in the blood of a fish. When it was removed, the blood froze at seawater temperature. When it was put back, the blood again had its antifreeze quality and a lowered freezing point.
Study showed that it is an unusual kind of protein. It has many small sugar molecules held in special positions within each big protein molecule. Because of its sugar content, it is called a glycoprotein. So it has come to be called the antifreeze fish glycoprotein. Or AFGP.
1.What is the text mainly about?
A.The terrible conditions in the Antarctic.
B.A special fish living in freezing waters.
C.The ice shelf around Antarctica.
D.Protection of the Antarctic cod.
2.Why can the Antarctic cod live at the freezing temperature?
A.The seawater has a temperature of -1.88℃.
B.It loves to live in the ice-salt mixture.
C.A special protein keeps it from freezing.
D.Its blood has a temperature lower than -2.05℃.
3.What does the underlined word “it” in Paragraph 5 refer to?
A.A type of ice-salt mixture. B.A newly found protein.
C.Fish blood. D.Sugar molecule.
4.What does “glyco-” in the underlined word “glycoprotein” in the last paragraph mean?
A.sugar B.ice
C.blood D.molecule
高一英语阅读理解简单题查看答案及解析
The Antarctica is actually a desert.
The Antarctica is all ice all the year. The warmest temperature ever recorded there is zero at the South Pole. Explorers(探险家) used to think that a place so cold would have a heavy snowfall. But less than ten inches of snowfalls each year. That is less than half an inch of water. Ten times that much moisture(水分) falls in parts of the Sahara.
The little snow that falls in Antarctica never melts(融化). It continues to pile up deeper and deeper year after year and century after century. When the snow gets to be about eighty feet deep, it is turned to ice by the weight of the snow above it.
1. Antarctica is called a desert because it _____.
A. is sandy
B. has the same temperature as a desert
C. has little moisture
D. all of the above
2. The Antarctica has _____.
A. ten times as much moisture as the Sahara
B. the same amount of moisture as the Sahara
C. about one-tenth the moisture of the Sahara
D. none of these
3. The snow in Antarctica is very deep because it _____.
A. never stops falling
B. piles up year after year
C. never melts
D. Both B and C
4. The best title for this passage is “_____”
A. A Strange Continent
B. The Antarctica—An Ice Desert
C. Snowfall at the South Pole
D. The World’s Greatest Desert
高一英语阅读理解简单题查看答案及解析
单句改错
1.It is the second time that he had been to Shanghai so far.
2.Two-fifths of the land in the district are covered with trees and grass.
3.What the boss said at the meeting left a deeply impression on his employees.
4.This is one of the most fascinating place I have been to.
5.The color of your clothes is similar with mine.
6.I can’t stand a person sitting with his legs crossing.
7.Not knowing that he was going to do, he put a pen cap into his mouth.
8.Though he is a shy man, but he is not afraid of anything or anyone.
9.Young while he is, he is very thoughtful so he is popular among his friends.
10.The ants are such little that they can’t move the elephants.
高一英语单句改错中等难度题查看答案及解析
The Adler Planetarium Chicago is home to more than 35,000 square feet of exhibits. From huge models of the Solar System, to ancient astronomical instruments, to interactive adventures, Adler’s exhibit galleries provides a passageway for you to explore the universe. The Adler also offers mini science exploration activities that are quick l0-minute lessons. Visitors can learn some interesting astronomical facts from the small activity parts.
The Adler Planetarium Chicago is the only museum in the world with two-full size planetarium theaters. Since 1930, people have been able to see the wonder of the stars in the historic Sky Theater. Powered by brand new Digistar 3TM technology, the StarRider Theater is a completely digital, virtual outer space environment. The famous Zeiss Planetarium projector is able to accurately reproduce the movement of every aspect(方面) of the night sky.
Do’s and Don’ts:
Do Take the Bus/Train: Leave the car at home for this museum trip. The Adler is located close to public transit(中转站).
Don’t Miss the Doane Observatory: When weather permits, the Doane is open at the Adler for observing with its 20-inch diameter telescope. Don’t Miss Museum Special Events: The Adler offers a summer camp for kids from mid-June to August.
Ticket Price:
Adult: $ 28; child: $ 22. Book online now for a discount 37%.
Regular Schedule:
Mon.—Fri. 10 a. m.—4 p. m.; Sat.—Sun. 10 a. m.—4:30 p. m.
Summer Hours: 9:30 a. m.—6 p. m. daily.
Nearest Transit: Roosevelt Metro Station.
Address: 1300 S Lake Shore Dr, Chicago, IL 60605.
1.Which of the following best attracts a visitor to virtual travel into outer space?
A. The Sky Theater.
B. The StarRider Theater.
C. The Special Events.
D. The Doane Observatory.
2.How much does a couple with two children need to pay the museum for a visit at least?
A. $ 63.
B. $ 37.
C. $ 100.
D. $ 137.
3.What is the purpose of the text?
A. To explore outer space.
B. To popularize science.
C. To introduce exhibits.
D. To advertise a museum.
高一英语阅读理解中等难度题查看答案及解析
It is well-known that the Internet will let people have ________ to huge amounts of information from their own homes.
A. entrance B. way C. means D. access
高一英语单项填空简单题查看答案及解析
When 1 was a boy we used to live across the road from a big hill with huge oak trees growing out of it.When winter arrived,thick,heavy snow would fall,and my two brothers would grab their sleds heading over to the hill for a day of fun.I remember watching them with envy because 1 was still too small to go sledding.Finally,one winter 1 was considered big enough and joined my brothers as they carried their sleds up the long hill and prepared to ride down it.
The first few trips I rode with one of my brothers and had the time of my life.It was so exhilarating when the wind whipped across my face as I flew down the hillside on the wooden sled.Near the end of the day 1 was overjoyed too when my oldest brother decided to let me try riding the sled all by myself.I climbed on it full of excitement and lay on my stomach.Then with one big push my brother sent me down the snowy hillside.1 was doing pretty well too until I hit an old stump hidden by the snow and went off course,straight towards one of those big oak trees.My heart pounded in my chest and I could hear myself screaming.At the last possible second I rolled off and the sled crashed into the tree.I could hear my brothers running down the hill yelling,“You have to steer(操控)!You have to steer!”
Sadly,that wasn’t the last time I failed to steer when some obstacle knocked me off course in my life.Many times problems,troubles,and my own failures have sent me crashing into the trees of anger, frustration, and despair.I am still learning that life isn’t always safe sledding.I am still learning that it is up to me to steer myself back to love, back to kindness, back to goodness, and back to God.
Life is a trip,but no one ever said it was a smooth ride.Steer well then.Steer straight.Steer your soul towards the light and the love we are all meant for.
1.What do we know about the author when he was very young?
A.He lived on a big hill with huge oak trees on it.
B.He was frightened to go sledding with his brothers.
C.He longed to go sledding with his brothers.
D.He carried his brothers’sleds as they went sledding.
2.Which of the following can replace the underlined word“exhilarating”in Paragraph 2?
A.delightful B.Terrifying
C.ordinary D.violent
3.Why did the author fall off his sled?
A.Because his sled crashed in an oak tree.
B.Because he lost control of his sled.
C.Because his brother pushed it so hard.
D.Because the hillside was snowy.
4.What does the author mean to tell us?
A.Losing control of a sled can be dangerous.
B.Courage and determination can change one’s life.
C.Life can be controlled by one himself
D.Life is a mystery full of coincidences.
高一英语阅读理解困难题查看答案及解析
The of an area of land is a line in people's imagination that separates it from other areas.
A. boundary B. hurdle
C. ceiling D. neighborhood
高一英语单项填空中等难度题查看答案及解析
Scientists in Colombia have trained a team of rats to help remove land mines from the countryside. Land mines are small bombs hidden in the ground and designed to explode(爆炸) when someone steps on them.
When trained, the rats can smell special metals in the mines and then signal(发信号) to their human team. Then why use rats for such an important job?
In the past, dogs have been used to find bombs. Rats have a good sense of smell and can respond to orders, just like dogs do. But rats are much lighter than dogs. They stand less of a chance of setting off the mines, which explode under a certain amount of weight. What’s more, the best rats are cheaper to keep than dogs. It costs about the same amount of money to take care of one dog as it does 70 rats.
The rats have already been used in Tanzania, an African country with many land mines. Luisa Fernanda Méndez and her team in Colombia are training the even lighter Wistar rats. These are the white rats with red eyes that scientists often use in laboratory experiments. “They even train their babies to perform their jobs, which saves us a lot of time, ” Méndez said.
Colombia has the second-highest rate(比率) of deaths from land mine accidents in the world. Last year, land mines killed 695 people — 56 of whom were children. A criminal group called the Revolutionary Armed Forces of Colombia, or FARC, as well as other organizations, have placed the mines. FARC are strongly against Colombia’s government. The group has placed mines all around its own bases and in many places in the countryside.
In the past, the Colombian government hired peasants and poor farmers to find mines. Many of them died trying to find the well-hidden bombs.
Colombian police official Erick Guzmán hopes the team of rats can come to the rescue(援救). “These rats will be a great help,” he said.
1.How do rats help to find land mines?
A.By their special sight. B.By their light weight.
C.By their sense of smell. D.By their excellent hearing.
2.The advantage of rats over dogs in finding bombs is that _____.
A.they are cleverer.
B.they run faster
C.they have a better sense of smell
D.they don’t make mines explode as easily
3.The underlined word “They” may refer to ______.
A.scientists B.Wistar rats
C.dogs D.Méndez and her team
4. What is the passage mainly about?
A.Specially-trained rats help clear land mines.
B.People in Tanzania are suffering from land mines.
C.Dogs are no longer used to find land mines.
D.Land mines have become a great danger to Colombians.
高一英语阅读理解中等难度题查看答案及解析
From now, if all goes well, a high-tech spacecraft will land in the South Pole of the moon. There, it will drill 66 feet down into the surface(表面) and collect samples of the mantle(地幔样本) to bring back to the earth.
But before it leaves, it will have a two-part time capsule(时光胶囊): a public part, full of the Earth’s history, and a private part, full of digital(数码的) memory boxes created by individuals(个人). These memory boxes can hold digital files — records of family trees, videos or actual DNA in the form of human hair. Not everyone can have a digital memory box, though. The boxes are only delivered for the people who donate the money to the project.
The project, called Lunar Mission One, has already raised more than half of its £600,000 goal since its launch(启动) just a few days ago. The founders thought that it would succeed because of the attraction of both exploring the moon surface and leaving a time capsule behind. The mission was a technical action, but it was also an emotional one, bringing the excitement of knowing that something humans built on the Earth reached somewhere else in space.
Still, it does seem risky(冒险的) for a person to donate£60 to keep a digital memory box for a project that won’t come true until 2024. What if the project never takes off? What if the technology isn’t good enough? What if those digital memory boxes break on the moon’s surface? And how will anybody ever even know if that happens? Ian Crawford, a professor at Birkbeck College in London and scientific advisor to the mission, says it is not necessary to worry about these. The plan to leave a time capsule on the moon isn’t really about physically leaving something on the moon — it’s more an opportunity to encourage people’s interest in space.
1.Who can have a digital memory box on the moon?
A. A person who donated£60 to the project.
B. A person who has records of family trees.
C. A person who is in charge of the project.
D. A person who is interested in exploring the moon.
2.What can be learned about Lunar Mission One from Paragraph 3?
A. The spacecraft was successfully launched just a few days ago.
B. It will explore the moon surface and leave a time capsule on the moon.
C. It was created because of the excitement of knowing something in space.
D. It was a technical action because it was designed with rich emotion.
3.Why does it seem risky to donate£60 to keep a digital memory box?
A. Because the spacecraft won’t be sent on time.
B. Because the technology isn’t good enough.
C. Because the project won’t come true until 2034.
D. Because there are various possibilities in such a long time.
4.What can be concluded from the last sentence of the passage?
A. Everything about the project will be OK.
B. The time capsule on the moon is not meaningful.
C. The plan to leave a time capsule on the moon is scientific.
D. The message of the project is to call people’s more attention to space.
高一英语阅读理解困难题查看答案及解析
阅读理解
Most of the sandstorms that had swept China last year originated from foreign land,a Chinese official in charge of desertification control said Monday.And the invasions(入侵)could partly explain the frequent sandstorms in the country in recent years despite its achievements in desertification control.
Since the start of last spring,the north and northwestern Chinese regions had been hit by 17 sandstorms,of which,a dozen came from foreign land.
Situated in the central-Asia sandstorm region,one of the world’s four largest sandstorm sources,China also suffers from sandstorms from outside the country while being blamed as a sand source to northeast Asia.The other three major sources are in Africa,North America and Australia.
The land suffering from desertification has been decreasing by 7,585 sq.km annually in China,and the area of sandy land has also been falling by 1,284 sq.km a year.
The shrinkage(收缩)forms a clear contrast to the fact that the land suffering from desertification and sandy feature was added by 10,400 sq.km and 3,436 sq.km late last century,respectively.
Currently,the desertification land in China makes up 2.64 million sq.km,accounting for 27.46 percent of the nation’s land,and its sandy land totals 1.74 million sq.km,accounting for 18.1 percent of the country’s total.
1.What does the underlined word “decreasing” mean in Paragraph 4?
A.Going down. B.Going up.
C.Coming from. D.Taking up.
2.Where do most of the sandstorms in China come from?
A.The northern Chinese regions.
B.The northwestern Chinese regions.
C.Foreign countries.
D.The western part of China.
3.Which of the following is believed to be the sand source to northeast Asia?
A.China. B.Africa.
C.Mongolia. D.Australia.
4.From the passage,we can infer that .
A.the land in China suffering from desertification has been increasing greatly
B.China has made achievements in its own desertification control
C.the desertification land makes up nearly half of China’s territory
D.little progress has been made in controlling desertification in China
5.In a magazine,the passage may be found in the column of .
A.entertainment B.health
C.education D.environment
高一英语阅读理解中等难度题查看答案及解析