Every year, 1.5 million kids around the world die as a result of not getting vaccines (疫苗). This is partly because transporting and storing medicines can be a huge challenge in some countries.
Anurudh Ganesan, 17, knows this firsthand. When he was a baby in India, his grandparents carried him 10 miles to a health clinic in a remote village to receive a vaccine. But by the time they arrived, the vaccines were no longer usable because they had been overheated.
Vaccines, Anurudh later learned, must be kept cool to stay effective. But refrigerating them requires electricity or ice – precious resources that many developing countries lack.
Although Anurudh eventually received the vaccine he needed, his experience as a baby and the sad reality that so many other children aren’t as lucky motivated him to take action. The high school student invented Vaxxwagon, a portable vaccine-carrying device that generates its own power to keep lifesaving medicines cool as they’re delivered to remote areas around the world.
Anurudh first got his idea for Vaxxwagon in 2014. He read several textbooks to learn everything he could about refrigeration, and then he did research online to learn more about vaccines. Rather than relying on electricity or ice, Anurudh figured out a way to use wheels to power a refrigeration system for about eight hours. The entire rechargeable cooling system can be pulled to areas in need of vaccines by a bicycle, a car, or an animal. Eventually, Anurudh took his design to professors at Johns Hopkins University for advice. Not only did they confirm Vaxxwagon could work, but they offered him funding to help build it.
Anurudh was rewarded with the 2015 Google Science Fair LEGO Education Builder Award for his invention. Anurudh says his final goal is to start selling Vaxxwagon to relief organizations, so it can be used to help people around the world.
Anurudh, who plans to pursue engineering degree in college, says, “Don’t give up on your ideas. But always try to help others with your projects. That’s the point of engineering – to help people.”
1.Why do many children die every year?
A. They lack qualified medical teams.
B. They cannot afford usable medicines.
C. They don’t have an electricity system.
D. They have no access to effective vaccines.
2.What is special about Vaxxwagon?
A. It can serve as a fridge.
B. It can produce safe vaccines.
C. It can detect deadly diseases.
D. It can be a means of transport.
3.Which of the following words can best describe Anurudh?
A. Caring and creative.
B. Modest and sympathetic.
C. Loyal and determined.
D. Honest and hard-working.
4.What can we learn from the story?
A. Practice makes perfect.
B. One good turn deserves another.
C. Motivation is the mother of success.
D. All things are difficult before they are easy.
高三英语阅读理解困难题
Every year, 1.5 million kids around the world die as a result of not getting vaccines (疫苗). This is partly because transporting and storing medicines can be a huge challenge in some countries.
Anurudh Ganesan, 17, knows this firsthand. When he was a baby in India, his grandparents carried him 10 miles to a health clinic in a remote village to receive a vaccine. But by the time they arrived, the vaccines were no longer usable because they had been overheated.
Vaccines, Anurudh later learned, must be kept cool to stay effective. But refrigerating them requires electricity or ice – precious resources that many developing countries lack.
Although Anurudh eventually received the vaccine he needed, his experience as a baby and the sad reality that so many other children aren’t as lucky motivated him to take action. The high school student invented Vaxxwagon, a portable vaccine-carrying device that generates its own power to keep lifesaving medicines cool as they’re delivered to remote areas around the world.
Anurudh first got his idea for Vaxxwagon in 2014. He read several textbooks to learn everything he could about refrigeration, and then he did research online to learn more about vaccines. Rather than relying on electricity or ice, Anurudh figured out a way to use wheels to power a refrigeration system for about eight hours. The entire rechargeable cooling system can be pulled to areas in need of vaccines by a bicycle, a car, or an animal. Eventually, Anurudh took his design to professors at Johns Hopkins University for advice. Not only did they confirm Vaxxwagon could work, but they offered him funding to help build it.
Anurudh was rewarded with the 2015 Google Science Fair LEGO Education Builder Award for his invention. Anurudh says his final goal is to start selling Vaxxwagon to relief organizations, so it can be used to help people around the world.
Anurudh, who plans to pursue engineering degree in college, says, “Don’t give up on your ideas. But always try to help others with your projects. That’s the point of engineering – to help people.”
1.Why do many children die every year?
A. They lack qualified medical teams.
B. They cannot afford usable medicines.
C. They don’t have an electricity system.
D. They have no access to effective vaccines.
2.What is special about Vaxxwagon?
A. It can serve as a fridge.
B. It can produce safe vaccines.
C. It can detect deadly diseases.
D. It can be a means of transport.
3.Which of the following words can best describe Anurudh?
A. Caring and creative.
B. Modest and sympathetic.
C. Loyal and determined.
D. Honest and hard-working.
4.What can we learn from the story?
A. Practice makes perfect.
B. One good turn deserves another.
C. Motivation is the mother of success.
D. All things are difficult before they are easy.
高三英语阅读理解困难题查看答案及解析
The World Health Organization warns that millions of people are dying every year from indoor air pollution. The WHO finds that poor cooking, heating and lighting technologies are killing millions of people each year.
Indoor air pollution results from the use of dangerous fuels and cook-stoves in the home. To help fight the problem, the WHO announced, new guidelines aimed at reducing household pollutants.
WHO officials say nearly three billion people are unable to use clean fuels and technologies for cooking? heating and lighting. And they say more than seven million people die from exposure to indoor or outdoor air pollution each year. Of that number, the WHO says about 4. 3 million people die from household air pollution given off by simple coal cook-stoves. Most of the deaths are in developing countries.
Carlos Dora is Coordinator in the WHO's Department of Public Health, Environmental and Social Determinants of Health. He says people should not use unprocessed coal and kerosene fuel indoors. He says opening a window or door to let out the harmful air will not improve the situation. It will only pollute the outdoors.
WHO officials say indoor pollution leads to early deaths from stroke, heart and lung disease, childhood pneumonia（肺炎） and lung cancer. Women and girls are the main victims. The United Nations found that more than 95 percent of households in sub-Saharan Africa depend on solid fuels for cooking. It says huge populations in India, China and Latin American countries, such as Guatemala and Peru, are also at risk.
Nigel Bruce is a professor of Public Health at the University of Liverpool. He says researchers are developing good cook-stoves and other equipment to burn fuels in a more efficient way.
WHO experts note some new, safe and low-cost technologies that could help are already available. In India, you can buy an induction(电磁) stove for about $ 8.00. And in Africa a you can buy a solar lamp for less than $ 1. 00.
1.What has been done to reduce indoor air pollution?
A. The WHO provided selfless assistance for the poor.
B. People are forbidden to use coal-stoves inside.
C. The WHO issues official advice to cut down pollution,
D. People are taught how to correctly use their stoves.
2.According to WHO officials, we can know that
A. many people refuse to use clean fuels and technologies
B. seven million people die from indoor air pollution
C. simple coal cook-stoves cause too many deaths
D. the processed coal is dangerous to people’s heath
3.It can be concluded from the fifth paragraph that .
A. most children are suffering a lot from lung cancer
B. solid fuels are easily producing pollutants
C. sub-Saharan Africa is the poorest place
D. some countries are at the risk of using up fuels
4.What can we infer from the passage?
A. More and more will die in the future.
B. It is not hard to solve indoor air pollutants.
C. Most people cannot afford a new stove.
D. The WHO will take strong measures.
高三英语阅读理解中等难度题查看答案及解析
语法填空
Once every 4 years the World Cup has always deeply attracted millions of fans around the world since it 1.（hold）． As 2.matter of fact， there were two trophies in history． The first was made by Paris' technician， Friel， who was very 3.（fame） for making jewelry． The model， which was the goddess of victory，4.（dress） in ancient Rome costume， stretching her arms and holding the image of the cup， stood on the marble base． According to the FIFA regulations at that time， the World Cup champion team could keep the gold cup for 4years to the next cup return． Besides， there was an additional 5.（require）． The team who won the three world championships would always get this cup．
In the 1970 World Cup， Brazil won the title the 6.（ three） time． The "Golden Goddess Cup" flew to Brazil and was expected to be kept there7.（permanent）． Unfortunately， later the Gold Cup was stolen and melted． 8.（create） a new trophy in 1971， FIFA finally collected fifty-three designs，9.which the work of Italian Gazania was selected． He designed the trophy --- two Herchles （大力神） lifted the design of the earth． The base is made up of two layers of precious malachite （孔雀石）． In reality， FIFA rules the new cup as a mobile prize． It means 10.team wins the championship can not occupy the cup forever．
高三英语语法填空中等难度题查看答案及解析
语法填空
Once every 4 years the World Cup has always deeply attracted millions of fans around the world since it 1.（hold）． As 2.matter of fact， there were two trophies in history． The first was made by Paris' technician， Friel， who was very 3.（fame） for making jewelry． The model， which was the goddess of victory，4.（dress） in ancient Rome costume， stretching her arms and holding the image of the cup， stood on the marble base． According to the FIFA regulations at that time， the World Cup champion team could keep the gold cup for 4years to the next cup return． Besides， there was an additional 5.（require）． The team who won the three world championships would always get this cup．
In the 1970 World Cup， Brazil won the title the 6.（ three） time． The "Golden Goddess Cup" flew to Brazil and was expected to be kept there7.（permanent）． Unfortunately， later the Gold Cup was stolen and melted． 8.（create） a new trophy in 1971， FIFA finally collected fifty-three designs，9.which the work of Italian Gazania was selected． He designed the trophy --- two Herchles （大力神） lifted the design of the earth． The base is made up of two layers of precious malachite （孔雀石）． In reality， FIFA rules the new cup as a mobile prize． It means 10.team wins the championship can not occupy the cup forever．
高三英语语法填空中等难度题查看答案及解析
TV-Turnoff Week, _______ millions of people around the world participate every year, tries to encourage people to turn on life.
A．in which B．on which C．which D．when
高三英语单项填空中等难度题查看答案及解析
Millions of people around the world cook their food over smoky fire every day.It is often difficult to find wood for the fire .People who do not have wood must spend large amounts of money on cooking fuel. However, there is a much easier way to cook food using energy from the sun.
Solar cooker, or ovens,have been used for centuries.A Swiss scientist made the first solar oven in seventeen sixty-seven. Today ,people are using solar cookers in many countries around the world. People use solar ovens to cook food and to heat drinking water to kill bacteria and other harmful organisms.
There are three kinds of solar ovens.The first is a box cooker, It is designed with a special wall that shines or reflects sunlight into the box .Heat gets trapped under a piece of glass or plastic covering the top of the cooker. A box oven is effective for slow cooking of large amonts of food.
The second kind of solar oven is a panel cooker. It includes several flat walls.or panels.that directly reflect the sun’s light onto the food. The food is inside a separate container of plastic or glass that traps heat energy. People can build panel cookers quickly and with very few supplies. They do not cost much.In Kenya ,for example ,panel cookers are being manufactured for just two dollars.
The third kind of solar oven is a parabolic cooker.It has rounded walls that aim sunlight directly into the bottom of the oven .Food cooks quickly in parabolic ovens .However, these cookers are hard to make.They must be re-aimed often to follow the sun .Parabolic cookers can also cause burns and eye injuries if they are not used correctly.
You can make solar ovens from boxes or heavy paper. They will not catch fire. Paper burns at two hundred thirty-two degrees Celsius. A solar cooker never gets that hot. Solar ovens cook food at low temperatures over long periods of time. This permits people to leave food to cook while they do other things.
1.What is the main purpose of the author in writing the passage?
A.To tell the readers how to make solar ovens.
B.To advertise the solar ovens.
C.To give the readers brief introduction of solar ovens.
D.To help readers to save cost on fuel.
2.According to the passage we can conclude that ______.
A.panel cooker is the cheapest oven of the three
B.panel cooker is easy to make
C.box cooker is easy to make
D.box cooker is the most effective oven
3.If you have much food to cook ,you’d better choose .
| A.a box cooker | B.a panel cooker |
| C.a parabolic cooker | D.a paper cooker |
4.From the passage we know that .
A.solar cookers are dangerous to use
B.solar cookers don’t burn while cooking
C.solar cookers cost less than other cookers
D.Swiss often use solar cookers while cooking
高三英语阅读理解简单题查看答案及解析
阅读下面材料，在空白处填人1个适当的单词或括号内单词的正确形式。
Every minute, people around the world purchase 1 million plastic bottles,1.adds up to roughly 526 billion bottles every year. Much of the plastic2.(end) up in landfills (填埋场), rivers or oceans, often with destructive effects on wildlife. Many people are now trying to cut down on plastic use, while also turning the single-use plastic into something3.(use) — like auto parts.
Recycles plastic is ideal for automotive parts due to its light4.(weigh) that offers additional benefits such as5.(improve) a vehicle’s aerodynamics (空气动力) and reducing cabin noise.
The use of plastic in vehicle parts has grown a lot since the last decade, especially in underbody shields (车底护板).6.is assumed that around 1.2 billion recycled plastic bottles are used every year — that’s about 250 bottles per vehicle7.average.
How exactly does your plastic water bottle turn into an aerodynamic auto part? After you put the bottle into the recycling bin, it’s8.(eventual) combined with thousands of others and cut into tiny pieces. Then, these pieces9.(sell) to a supplier, who turns them into a fiber by melting them. This fibers mixed with other elements (元素) in a special process, and then were used 10.(create) a sheet of material that can be formed into vehicle parts.
高三英语语法填空中等难度题查看答案及解析
If you are like millions of people around the world, the New Year brings with it new goals. But you get busy. Yet, your goal remains important. 1.
♦ Identify specific goals.
As you identify your goals, be specific. If a goal is too general, it may be hard to pursue, let alone achieve it. 2. That's a fine idea. Yet psychologists might say as a goal, it is too general. To make the goal more specific, you could sign up for a regular exercise class.
♦3.
Experts say writing down your goals is important. It gets the goals out of your brain and into the real world. Some psychologists suggest that writing a goal on paper is better than typing it on a device or saying it into your phone. Your brain receives information differently when it comes from handwriting. Writing has another benefit: You can post your goals somewhere as a reminder.
♦ Break down big goals into small ones.
4. Some can be quite big. And for those bigger goals, experts suggest breaking them down into smaller ones. Say you want to work for yourself. You decide to start your own comp any that supplies food for special events. That is a very big goal. But it is made up of many smaller goals. So, identify them, write them down and set for yourself time limits.
♦Tell a friend.
Telling someone your goals is also helpful. If someone else knows about your goals, you are held responsible for any pregress or lack of progress. You feel the pressure of your friend ‘s op inion of you. That can be a big pressure! 5.
A. Write your goals down.
B. Not all goals are created equal.
C. Keep your life goals as a reminder.
D. Say your goal is to get in better physical shape.
E. You are bound to achieve your goals if you are detennined.
F. So how can we find time to work on these larger life goals?
G. Many people do not want to let others down, especially friends and family.
高三英语七选五中等难度题查看答案及解析
He was just 12 years old when he died. But he brought courage and hope to people around the world.
Nkosi Johnson, who died last June, is remembered today as an AIDS fighter. This young boy challenged his government’s AIDS policies and millions of South Africans in the fight against the disease.
Johnson was the longest survivor born HIV positive（艾滋病病毒携带者）.He survived with this deadly disease for 12 years before it claimed his life.
At first, Johnson was expected to live for nine months when his foster mother, Gail Johnson took him in at the age of two. She now runs Nkosi’s Haven across town from her house in Melville. The Haven is home to 20 children living with HIV or AIDS, and 11 of their mothers.
Johnson attracted the world’s attention and stole the hearts of thousands of people across the world at the 13th International AIDS Conference in Durban in July 2000. He stood in front of a large audience including South African President Thabo Mbeki. He told them that he wanted AZT, a drug used to treat AIDS patients, to be given to HIV-positive pregnant（怀孕的） women to prevent the disease being passed on to their unborn babies. He received a loud cheer at the end of his speech.
Johnson’s speech was broadcast live across the world. With views beyond his age and even a sense of humor, Johnson soon became an international sign of the fight against AIDS and HIV.
1.The underlined words “claimed his life” (Paragraph 3) means _______.
A．did harm to Johnson’s life B．helped Johnson to survive
C．caused the death of Johnson D．made Johnson weak
2.The main idea in paragraphs 5 and 6 is ________.
A Johnson attracted the world’s attention
B．Johnson stood in front of South African President Thabo Mbeki
C．Johnson wanted AZT to treat AIDS pregnant women
D．Johnson helped prevent the disease being passed on to an unborn baby
3.The AIDS child gave the speech in order to _________.
A．steal the hearts of thousands of people
B．be an AIDS fighter
C．get more help from the world
D．fight against the government
4.From the passage we can infer that _______.
A．the government’s AIDS policies have to be improved
B．the government did nothing to help those with HIV positive
C．the boy’s speech changed the government’s policies
D．no one lived longer than the boy
5.The best title for this passage is ________.
A．The Sad Story of an AIDS Child. B．The Courage of an AIDS Child
C．AIDS, a Deadly Disease D．A Hero in South Africa
高三英语阅读理解中等难度题查看答案及解析
There are hundreds of publishers across the world and millions of books get printed every year. Moreover, a book can be printed by several polishers.1.
To overcome the problem of identifying books, publishers have come up with a unique numbering system. For instance, if 50,000 copies of The Adventures of Sherlock Holmes are printed by a publisher at one time (called an edition), all of them are identified by one number code. 2. your address begins with your house number, street, locality, state and ends with a statement of the country where you live. An ISBN book number achieves a similar aim of identifying and tracing a book
If you pick up any book, turn it around you will see a number which looks something like this — ISBN 90-70002-34-5. This is called the ISBN number. ISBN stands for International Standard Book Numbering. 3. The ISBN number is divided into four groups that are separated by a space or a hyphen.
The first part of the ISBN identifies the country and is called the Group Identifier. 4.The second part is called the Publisher Prefix. The Publisher Prefix is used to identify the publisher of the book. The publisher prefix may contain up to seven digits.
The third part identifies the title and the edition of the book and so is called the Title Identifier, which may consist of up to six digits. 5.Since you can have the same book from the same publisher but with different editions, the Title Identifier helps to differentiate between them.
The fourth and the final part is called the Check digit, a single digit (from 0 to 9) used to check whether the given ISBN number is correct or wrong. If an ISBN number is incorrect, this means that the book is a version printed illegally.
A.It may consist of up to five digits.
B.So what can the ISBN number do for you?
C.This makes the task of identifying a book very difficult.
D.It is a numbering system that is used to describe the book.
E.Book publishers often come out with newer and updated versions of earlier books.
F.The number Code is your home — address that can only be shared by your parents and
G.The ISBN numbering system helps book stores and book publishers to handle categorize to handle, categorize, store and identify books easily.
高三英语七选五中等难度题查看答案及解析