By the end of the century,if not sooner,the world’s oceans will be bluer and greener thanks to a warming climate,according to a new study.
At the heart of the phenomenon lie tiny marine microorganisms(海洋微生物) called phytoplankton. Because of the way light reflects off the organisms,these phytoplankton create colourful patterns at the ocean surface. Ocean colour varies from green to blue,depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas,while reducing it in other spots,leading to changes in the ocean's appearance.
Phytoplankton live at the ocean surface,where they pull carbon dioxide(二氧化碳) into the ocean while giving off oxygen. When these organisms die,they bury carbon in the deep ocean,an important process that helps to regulate the global climate. But phytoplankton are vulnerable to the ocean's warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth,since they need not only sunlight and carbon dioxide to grow,but also nutrients.
Stephanie Dutkiewicz,a scientist in MIT's Center for Global Change Science,built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 3℃,it found that multiple changes to the colour of the oceans would occur. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters,such as those of the Arctic,a warming will make conditions riper for phytoplankton,and these areas will turn greener. “Not only are the quantities of phytoplankton in the ocean changing. ”she said,“but the type of phytoplankton is changing. ”
1.What are the first two paragraphs mainly about?
A. The various patterns at the ocean surface.
B. The cause of the changes in ocean colour.
C. The way light reflects off marine organisms.
D. The efforts to fuel the growth of phytoplankton.
2.What does the underlined word “vulnerable” in Paragraph 3 probably mean?
A. Sensitive. B. Beneficial
C. Significant D. Unnoticeable
3.What can we learn from the passage?
A. Phytoplankton play a declining role in the marine ecosystem.
B. Dutkiewicz's model aims to project phytoplankton changes
C. Phytoplankton have been used to control global climate
D. Oceans with more phytoplankton may appear greener.
4.What is the main purpose of the passage?
A. To assess the consequences of ocean colour changes
B. To analyse the composition of the ocean food chain
C. To explain the effects of climate change on oceans
D. To introduce a new method to study phytoplankton
高三英语阅读理解中等难度题
By the end of the century,if not sooner,the world’s oceans will be bluer and greener thanks to a warming climate,according to a new study.
At the heart of the phenomenon lie tiny marine microorganisms(海洋微生物) called phytoplankton. Because of the way light reflects off the organisms,these phytoplankton create colourful patterns at the ocean surface. Ocean colour varies from green to blue,depending on the type and concentration of phytoplankton. Climate change will fuel the growth of phytoplankton in some areas,while reducing it in other spots,leading to changes in the ocean's appearance.
Phytoplankton live at the ocean surface,where they pull carbon dioxide(二氧化碳) into the ocean while giving off oxygen. When these organisms die,they bury carbon in the deep ocean,an important process that helps to regulate the global climate. But phytoplankton are vulnerable to the ocean's warming trend. Warming changes key characteristics of the ocean and can affect phytoplankton growth,since they need not only sunlight and carbon dioxide to grow,but also nutrients.
Stephanie Dutkiewicz,a scientist in MIT's Center for Global Change Science,built a climate model that projects changes to the oceans throughout the century. In a world that warms up by 3℃,it found that multiple changes to the colour of the oceans would occur. The model projects that currently blue areas with little phytoplankton could become even bluer. But in some waters,such as those of the Arctic,a warming will make conditions riper for phytoplankton,and these areas will turn greener. “Not only are the quantities of phytoplankton in the ocean changing. ”she said,“but the type of phytoplankton is changing. ”
1.What are the first two paragraphs mainly about?
A. The various patterns at the ocean surface.
B. The cause of the changes in ocean colour.
C. The way light reflects off marine organisms.
D. The efforts to fuel the growth of phytoplankton.
2.What does the underlined word “vulnerable” in Paragraph 3 probably mean?
A. Sensitive. B. Beneficial
C. Significant D. Unnoticeable
3.What can we learn from the passage?
A. Phytoplankton play a declining role in the marine ecosystem.
B. Dutkiewicz's model aims to project phytoplankton changes
C. Phytoplankton have been used to control global climate
D. Oceans with more phytoplankton may appear greener.
4.What is the main purpose of the passage?
A. To assess the consequences of ocean colour changes
B. To analyse the composition of the ocean food chain
C. To explain the effects of climate change on oceans
D. To introduce a new method to study phytoplankton
高三英语阅读理解中等难度题查看答案及解析
The Atlantic Ocean is one of the oceans that separate the Old World from the New. For centuries it kept the America from being discovered by the people of Europe.
The Atlantic Ocean is only half as big as the pacific, but it is still very large. It is more than 4,000 miles (6,000 km) wide where Columbus crossed it. Even at its narrowest it is about 2,000 miles (3,200 km) wide.
There is so much water in the Atlantic that it is hard to imagine how much there is. But suppose no more rain fell into and no more water was brought to it by rivers. It would take the ocean about 4,000 years to dry up. On the average the water is a little more than 2 miles (3.2 km) deep, but in some places it is much deeper. The deepest spot is near Puerto Rico. This "deep" measures 30,246 feet --- almost six miles (9.6 km).
Several hundred miles eastward from Florida there is a part of the ocean called the Sargasso Sea. Here the water is quiet, for there is little wind. Today the Atlantic is a great highway. It is not, however, always a smooth and safe one. Storms sweep across it and pile up great waves. Icebergs float down from the Far North across the paths of ships. We now have such fast ways of travelling that this big ocean seems to have grown smaller. Columbus sailed for more than two months to cross it. A fast modern steamship can make the trip in less than four days. Airplanes fly from New York to London in only eight hours and from South America to Africa in four!
1. From the third paragraph, we can learn that ______ .
A. the Atlantic will dry up in 4,000 years' time
B. no river flows into the Atlantic ocean
C. it's hard to imagine how much water there is in the Atlantic ocean
D. the Ocean floor is rather flat
2.Suppose it's February 27th, 2000. You take a steamship to cross the Atlantic to North America, when will you probably get there?
A. On March 2nd B. On March 3rd
C. On February 28th D. In eight hours' time
3. What can you learn from the last paragraph of the passage ?
A. The Atlantic has grown smaller than it used to be.
B. The Atlantic had grown wider than it used to be.
C. Fast ways of travelling make the ocean grow smaller.
D. Fast ways of travelling make the ocean seem to grow smaller.
高三英语阅读理解简单题查看答案及解析
The Atlantic Ocean is one of the oceans that separate the Old World from the New.For centuries it kept the America from being discovered by the people of Europe.
The Atlantic Ocean is only half as big as the pacific, but it is still very large.It is more than 4,000 miles (6,000 km) wide where Columbus crossed it.Even at its narrowest it is about 2,000 miles (3,200 km) wide.
There is so much water in the Atlantic that it is hard to imagine how much there is.But suppose no more rain fell into and no more water was brought to it by rivers.It would take the ocean about 4,000 years to dry up.On the average the water is a little more than 2 miles (3.2 km) deep, but in some places it is much deeper.The deepest spot is near Puerto Rico.This "deep" measures 30,246 feet --- almost six miles (9.6 km).
Several hundred miles eastward from Florida there is a part of the ocean called the Sargasso Sea.Here the water is quiet, for there is little wind.Today the Atlantic is a great highway.It is not, however, always a smooth and safe one.Storms sweep across it and pile up great waves.Icebergs float down from the Far North across the paths of ships.We now have such fast ways of travelling that this big ocean seems to have grown smaller.Columbus sailed for more than two months to cross it.A fast modern steamship can make the trip in less than four days.Airplanes fly from New York to London in only eight hours and from South America to Africa in four!
1.From the third paragraph, we can learn that ______ .
A.the Atlantic will dry up in 4,000 years' time
B.no river flows into the Atlantic ocean
C.it's hard to imagine how much water there is in the Atlantic ocean
D.the Ocean floor is rather flat
2.Suppose it's February 27th, 2000.You take a steamship to cross the Atlantic to North America, when will you probably get there?
A.On March 2nd B.On March 3rd
C.On February 28th D.In eight hours' time
3.What can you learn from the last paragraph of the passage ?
A.The Atlantic has grown smaller than it used to be.
B.The Atlantic had grown wider than it used to be.
C.Fast ways of travelling make the ocean grow smaller.
D.Fast ways of travelling make the ocean seem to grow smaller.
高三英语阅读理解中等难度题查看答案及解析
At the end of the 19th century, one in seven people around the world had died of tuberculosis or TB for short (肺结核),and the disease ranked as the third leading cause of death in the United States. While physicians had begun to accept that TB was caused by bacteria, this understanding was slow to catch on among the general public, and most people gave little attention to the behaviors that contributed to disease transmission. They didn’t understand that things they did could make them sick. It was common for family members, or even strangers, to share a drinking cup.
In the 1890s the New York City Health Department launched a massive campaign to educate the public and reduce transmission. The “War on Tuberculosis” public health campaign discouraged cup-sharing and urged states to ban spitting inside public buildings and on sidewalks and in other outdoor spaces. Changes in public behavior helped successfully reduce the spread of TB.
Disease can permanently change society, and often for the best by creating better practices and habits. Crisis sets off action and response. Many infrastructure improvements and healthy behaviors we consider normal today are the result of past health campaigns that responded to serious outbreaks.
In the 19th century, city streets in the U.S. overflowed with dirt. People threw their unwanted newspapers, food scraps, and other trash out of their windows onto the streets below. The plentiful horses pulling streetcars and delivery carts dropped urine and waste every day. Human waste was a problem, too. Those in tenement (租户)housing did not have their own facilities, but had 25 to 30 people sharing a single outhouse. These toilets frequently overflowed until workers known as “night soil men” arrived to deal with waste, only to dump it into the nearby harbor.
As city and health leaders began to understand that the frequent outbreaks of TB that swept across their cities were connected to the garbage, cities began setting up organized systems for handling human waste. Indoor toilets were slow to catch on, due to the cost and need of a plumbing system. Improvements in technology helped the process along. Following Thomas Clapper’s improved model in 1891, water closets became popular, first among the wealthy, and then among the middle-class. Plumbing systems, paired with tenement house reform, helped remove waste from the public streets.
Disease greatly improved aspects of American culture, too. As physicians came to believe that good ventilation(通风))and fresh air could help fight illness, builders started adding porches and windows to houses. Real estate investors used the trend to market migration to the West, encouraging Eastern physicians to convince TB patients and their families to move thousands of miles from crowded, dirty Eastern cities to the dry air and sunshine in places like Los Angeles and Colorado Springs.
Some of this influence continues today. While we know that sunshine doesn’t kill bacteria, good ventilation and time spent outside does benefit children and adults by promoting physical activity and improving spirits. This fresh-air “cure” also eventually transformed the study of climate into a formal science, as people began to chart temperature, barometric pressure and other weather patterns in hopes of identifying the “ideal” conditions for treating disease.
Public health emergencies have inspired innovations in education. Starting in 1910, Thomas Edison’s lab, which had invented one of the first motion picture devices in the 1890s, cooperated with anti-tuberculosis activists to produce short films on TB prevention and transmission-some of the first educational movies. Screened in public places in rural areas, the TB movies were also the first films that viewers had ever seen.
As we are seeing with the coronavirus today, disease can impact a community--changing routines and shaking nerves as it spreads from person to person. But the effects of epidemics extend beyond the moments in which they occur.
1.According to Paragraph 1, what might have led to the outbreak of TB in the US?
A.Limited access to treatment B.Incompetence of the physicians.
C.Unhealthy living habits. D.Poor governmental administration.
2.What result did the “War on Tuberculosis” achieve?
A.The gap between the rich and the poor widened.
B.It contributed to changes in public behavior.
C.Tuberculosis totally disappeared in New York.
D.Citizens finally found a cure for tuberculosis.
3.If you had been in a US city street then, you would have probably seen .
A.more horses traveling on roads than pedestrians
B.lifeless patients infected with TB on every street
C.dirty surroundings where bacteria were easy to spread
D.unfair discrimination from the rich against the poor
4.Why was it slow for water closets to become popular?
A.They were too expensive for the poor to obtain.
B.There were many drawbacks of the early models.
C.They often overflowed and caused inconvenience.
D.People in tenement houses resisted such a device.
5.What was the change in American population migration then?
A.The vast majority of urban citizens moved to the West.
B.More people lived in the West than those in the East.
C.Many fled to rural areas with good ventilation and fresh air.
D.Patients and their family were encouraged to move westwards.
6.Which of the following effects TB brought remains nowadays?
A.The benefits of outdoor activities are widely acknowledged.
B.People adopt the habit of regular temperature-taking.
C.Films have become the primary way to educate people.
D.Ideal conditions for treating disease have been defined.
高三英语阅读理解中等难度题查看答案及解析
Many scientists believe sea levels ______ by more than one meter by the end of the 21st century.
A. will be risen B. will have risen
C. will have been D. will be rising
高三英语单项填空中等难度题查看答案及解析
10. By the middle of the 21st century , the vast majority of the world’s population ________ in cities rather than in the country.
A.are living | B.will be living | C.have lived | D.will have lived |
高三英语单项填空简单题查看答案及解析
The end of the 2014 World Cup does not mean the end of the international competition in Brazil. A major football event which is known as RoboCup will be held in the coastal city Joao Pessoa. Teams of robots from around the world will take part in it and play the game known as soccer in the United States. The robot teams are guided by teams of human beings.
Watching robots play football is similar to watching children play the game. The kicks are not good, there are a lot of falls , and people are there to guide and support the robot players. Students of the University of Pennsylvania are trying for their fourth victory at the competition. The students have won the last three RoboCup competition in the Netherlands, Mexico and Turkey.
Jian Qiaoli is one of the leaders of the University of Pennsylvania team. He says one goal he has set for his team is to make sure the robots can find the ball and know where they are on the playing field. And he wants the team to be able to better control the walking ability of the robots. They should pay more attention to the kicking ability, which is the key to winning the game.
Qin He is another leader of the robot team. She says the abilities of the robots improve every year. The robots know the difference between the colors green and red, and they can decide where to go and where the ball is on the playing field. She says the robots are self-learning and don’t need to be told what to do. If there are three robot players on the playing field at the same time, they will communicate with each other to decide different responsibility for each of them. They have very good team play right now.
As long as the radar detection(雷达探测) works well, the robots will be very competitive. So RoboCup will be an exciting technology competition. Each team develops their own software. Actually, it’s a competition of who has the best software. Some RoboCup participants hope to develop a team of robots that can play against human beings.
1.What does the underlined word “it” in the first paragraph refer to?
A. The 2014 World Cup B. Joao Pessoa
C. RoboCup D. A basketball game
2.What can we learn about the robot players?
A. They look like children.
B. They are from Joao Pessoa.
C. They are not very skillful.
D. They are against human beings.
3.What is the deciding factor for the robots to win the game?
A. The ability to find the ball.
B. The ability to know the position.
C. The ability of walking.
D. The ability of kicking.
4.What’s the best title for the text?
A. The technology competition—RoboCup
B. The international competitions in Brazil
C. How to develop robot players?
D. Can robot players play football?
高三英语阅读理解中等难度题查看答案及解析
The end of the World Cup does not mean the end of international competition, in Brazil this year. A major football event will happen in the South American country later this month, but with teams of robots playing the game, which is known as soccer in the United States. The robot teams are guided by teams of humans from around the world. The event is known as RoboCup.
Technology students at the University of Pennsylvania are trying for their fourth victory at the competition, which is held this year in the coastal city Joao Pessoa. The students have won the last three RoboCup competitions.
Watching robots play football is similar to watching children play the game. The kicks are not good, there's a lot of falling down, and people are there to guide and support the team members. Jian Qiao Li is one of the leaders of the University of Pennsylvania team.
He says one goal he has for the robot team is to make sure the machines can find the goal and the ball. He also wants the robots to be able to know where they are on the playing field. And he wants the team to be able to better control the walking and kicking abilities of the robots.
Qin He is another leader of the robot team. She says the abilities of the robots increase every year. Ms. He says the US team is meeting its goals. The robots know the differences between the colors green and red, and they can decide where to go and where the ball is on the playing field. She says if there are three robot players on the field at the same time, they will communicate with each other to decide the different responsibilities for each robot.
U. S. Team member Christopher Akatusuka hopes for another victory in Brazil. The team has won the RoboCup the past three years in the Netherlands, Mexico and Turkey.
“They have every good team player right now. As long as their detection is good, I think they'll be very competitive; we just hope to compete against the real good German teams eventually, because the Germans always do very well, ” says Akatsuka.
Mr Akatsuka says RoboCup is an exciting technology competition.
“Each team develops their own software; basically it's a competition of who has the best software, who has the best decision—making at a given point... it’s really exciting, ” says Akatsuka.
The event begins July 19th and ends July 25th. Some RoboCup participants hope to develop a team of robots that can play against humans by 2050.
1.According to the first paragraph, Robocup _____.
A. is held every four years
B. is played by robots
C. is a symbol of World Cup's ending
D. is a celebration of World Cup
2.The robots' performance of playing the game is _______ .
A. marvelous B. awkward
C. flexible D. awesome
3.The same goal for the robots that Jian Qiao Li and Qin He mention is _______ .
A. to locate the ball B. to communicate with each other
C. to play at will D. to distinguish colors
4. Akatsuka's final hope for his robot team is ______ .
A. to invent the best software
B. to win the championship in Brazil
C. to make the best decision
D. to compete with humans
高三英语阅读理解中等难度题查看答案及解析
By the end of this year, 160 new students ___ in the English Department of this world famous university.
A. have enroll B.will have enrolled
C.have been enrolled D.will have been enrolled
高三英语单项填空中等难度题查看答案及解析
—Is that Dec.21,2012 is the end of the world true?
—Definitely not, but ______ must be paid to global climate change.
A.contact B.care C.attention D.influence
高三英语单项填空中等难度题查看答案及解析