When Omar Yaghi was growing up in Jordan, his...

When Omar Yaghi was growing up in Jordan, his neighborhood received water for only about 5 hours once every 2 weeks. If Yaghi wasn’t up at dawn to turn on the taps to store water, his family, their cow, and their garden had to go without. At a meeting last week, Yaghi, now a chemist at the University of California, reported that he and his colleagues have created a solar-powered device that could provide water for millions in water-stressed regions. At its heart is a porous crystalline　 (多孔晶体) material, known as a metal-organic framework (MOF), which acts like a sponge: It sucks water vapor out of air, and then releases it as liquid water.

Yaghi and his colleagues first developed a zirconium( 锆 )-based MOF in 2014 that could harvest and release water. But at $160 per kilogram, zirconium is too expensive for massive use. So, last year, his team came up with an alternative called MOF-303, based on aluminum, which costs just $3 per kilogram, but the harvest was only about 0.2 liters per kilogram of MOF per day.

In July 2019, Yaghi reported that his team has designed a new and far more productive water harvester. Supported by a solar panel to power a fan and heater, which speed the cycles, the new device produces up to 1.3 liters of water per kilogram of MOF per day from desert air. Yaghi expects further improvements to increase that number to 8 to 10 liters per day. And his company plans to release a microwave-size device able to provide up to 8 liters per day this fall. The company promises an enlarged version next year that will produce 22,500 liters per day, enough to supply a small village.

However, it needs to be shown that Yaghi’s MOFs can be produced cheaply on a large scale. Each potential commercial MOF needs to prove itself in stability, efficiency, and life span. But if MOFs can pass those tests, they could offer a solution to some of the world’s most pressing problems.

1.Why is Omar Yaghi’s childhood mentioned at the beginning?

A.To show how serious water problem is. B.To lead in the topic.

C.To introduce the chemist. D.To arouse reader’s interest.

2.What is the problem of MOF-303?

A.It costs too much. B.It can’t last long.

C.It is hard to operate. D.It is low in efficiency.

3.According to Yaghi, how much water will a large water harvester produce per day?

A.1.3 liters. B.10 liters.

C.22,500 liters. D.8 liters.

4.What can be concluded from the last paragraph?

A.Yaghi’s MOFs are in great demand now.

B.Yaghi’s MOFs may help solve water shortage.

C.Yaghi’s MOFs have already entered the market.

D.Mass production of Yaghi’s MOFs is impossible.

高三英语阅读理解中等难度题查看答案及解析

Growing up ______ Micheal Jordan was in his prime, Beijing native Wu You knew what he wanted to do

A．since             B．when             C．until             D．before

高三英语单项填空中等难度题查看答案及解析

Growing up ________ Michael Jordan was in his prime，Beijing native Wu You knew what he wanted to do.

A．since　    B．when

C．until　    D．before

高三英语单项填空中等难度题查看答案及解析

Growing up in Philadelphia,Lieberman started cooking with his stay-at-home dad when he was seven.His food-loving family had two kitchens,and he quickly learned what was the best way to bake his cakes.Lieberman improved his kitchen skills greatly during a year abroad before college,learning from a cook in Italy and studying local specialties(地方特色菜) in Germany,Spain and France.At Yale,he was known for throwing dinner parties,single-handedly frying and baking while mixing drinks for dozens of friends.Just for fun,he and some friends decided to tape a show named Campus Cuisine about his cooking.Lieberman was a real college student showing his classmates how to do things like make drinks out of dining-hall fruit.That helped the show become very popular among the students.They would stop Lieberman after classes to ask for his advice on cooking.Tapes of the show were passed around,with which his name went beyond the school and finally to the Food Network.

Food Network producer Flay hopes the young cook will find a place on the network television.He says Lieberman’s charisma is key.“Food TV isn’t about food anymore,”says Flay.“It’s about your personality(个性) and finding a way to keep people’s eyeballs on your show.”

But Lieberman isn’t putting all his eggs in one basket.After taping the first season of the new show,Lieberman was back in his own small kitchen preparing sandwiches.An airline company(航空公司) was looking for someone to come up with a tasteful,inexpensive and easy-to-make menu to serve on its flights.Lieberman got the job.

1.We can learn from the text that Lieberman’s family _______.

A.have relatives in Europe                  B.love cooking at home

C.often hold parties                            D.own a restaurant

2.The Food Network got to know Lieberman _______.

A.at one of this parties                        B.from his teachers

C.through his taped show                    D.on a television program

3.What does the word “charisma” underlined in the text refer to?

A.A natural ability to attract others.

B.A way to show one’s achievement.

C.Lieberman’s after-class interest.

D.Lieberman’s fine cooking skill.

4.Why did the airline company give Lieberman the job?

A.He could prepare meals in a small kitchen.

B.He was famous for his shows on Food TV.

C.He was good at using eggs to make sandwiches.

D.He could cook cheap,delicious and simple meals.

5.What can we learn about Lieberman from the text?

A.He is clever but lonely.

B.He is friendly and active.

C.He enjoys traveling around.

D.He often changes his menus.

高三英语阅读理解中等难度题查看答案及解析

Growing up in Philadelphia, Lieberman started cooking with his stay-at-home dad when he was seven. His food-loving family had two kitchens, and he quickly learned what was the best way to bake his cakes. Lieberman improved his kitchen skills greatly during a year abroad before college, learning from a cook in Italy and studying local specialties（地方特色菜）in Germany, Spain and France. At Yale, he was known for throwing dinner parties, single-handed frying and baking while

mixing drinks for dozens of friends. Just for fun, he and some friends decided to tape a show named Campus Cuisine about his cooking. Lieberman was a real college student showing his classmates how to do things like making drinks out of dining-hall fruit. That helped the show become very popular among the students. They would stop Lieberman after classes to ask for his advice on cooking. Tapes of the show were passed around, with which his name went beyond the school and finally to the Food Network.

Food Network producer Flay hopes the young cook will find a place on the network television. He says Lieberman’s charisma is key.“Food TV isn’t about food anymore,” says Flay. “It’s about your personality and finding a way to keep people’s eyeballs on your show.”

But Lieberman isn’t putting all his eggs in one basket. After taping the first season of the new show, Lieberman was back in his own small kitchen preparing sandwiches. An airline company was looking for someone to come up with a tasteful, inexpensive and easy-to-make menu to serve on its flights, Lieberman got the job.

1.We can learn from the text that Lieberman’s family __________.

A. love cooking at home　　　　　　　　 B. have relatives in Europe

C. often hold parties　　　　　　　　　 D. own a restaurant

2.The Food Network got to know Lieberman __________.

A. at one of his parties

B. from his teachers

C. on a television program

D. through his taped show

3.What does the underlined word “charisma” in the text refer to?

A. A way to show one’s achievement.

B. A natural ability to attract others.

C. Lieberman’s after-class interest.

D. Lieberman’s fine cooking skill.

4.Why did the airline company give Lieberman the job?

A. He could prepare meals in a small kitchen.

B. He was famous for his shows on Food TV.

C. He could cook cheap, delicious and simple meals.

D. He was good at using eggs to make sandwiches.

高三英语阅读理解中等难度题查看答案及解析

Growing up in Philadelphia, Lieberman started cooking with his stay-at-home dad when he was seven. His food-loving family had two kitchens, and he quickly learned what was the best way to bake his cakes. Lieberman improved his kitchen skills greatly during a year abroad before college, learning from a cook in Italy and studying local specialties(地方特色菜)in Germany, Span and France. At Yale, he was known for throwing dinner parties, single-handedly frying and baking while mixing drinks for dozens of friends. Just for fun, he and some friends decided to tape a show named Campus Cuisine about his cooking. Lieberman was a real college student showing his classmates how to do things like making drinks out of dining-hall fruit. That helped the show become very popular among the students. They would stop Lieberman after classes to ask for his advice on cooking. Tapes of the show were passed around, with which his name went beyond the school and family to the Food Network.

Food Network producer Flay hopes the young cook will find a place on the network television. He says Lieberman’s charisma is key . “Food TV isn’t about food anymore,” says Flay. “It’s about your personality(个性) and finding a way to keep people’s eyeballs on your show.’’

But Lieberman isn’t putting all his eggs in one basket. After taping the first season of the new show, Lieberman was back in his own small kitchen preparing sandwiches. An airline company(航空公司) was looking for someone to come up with a tasteful, inexpensive and easy-to-make menu to serve on its flights. Lieberman got the job.

1.The Food Network got to know Lieberman___________________.

A. at one of this parties        B. from his teachers

C. through his taped show      D. on a television program.

2.What does the word “charisma” underlined in the text refer to?

A.      A natural ability to attract others

B.       A way to show one’s achievement.

C.      Lieberman’s after-class interest.

D.      Lieberman’s fine cooking skill.

3.Why did the airline company give Lieberman the job?

A.      He could prepare meals in a small kitchen.

B.       He was famous for his shows on Food TV.

C.      He was good at using eggs to make sandwiches.

D.      He could cook cheap, delicious and simple meals.

4.What can we learn about Lieberman from the text?

A.      He is clever but lonely.

B.       He is friendly and active

C.      He enjoys traveling around.

D.      He often changes his menus.

高三英语阅读理解中等难度题查看答案及解析

Growing up in Philadelphia, Lieberman started cooking with his stay-at-home dad when he was seven. His food-loving family had two kitchens, and he quickly learned what was the best way to bake his cakes. Lieberman improved his kitchen skills greatly during a year abroad before college, learning from a cook in Italy and studying local specialties（地方特色菜）in Germany, Spain and France. At Yale, he was known for throwing dinner parties, single-handed frying and baking while mixing drinks for dozens of friends. Just for fun, he and some friends decided to tape a show named Campus Cuisine about his cooking. Lieberman was a real college student showing his classmates how to do things like making drinks out of dining-hall fruit. That helped the show become very popular among the students. They would stop Lieberman after classes to ask for his advice on cooking. Tapes of the show were passed around, with which his name went beyond the school and finally to the Food Network.

Food Network producer Flay hopes the young cook will find a place on the network television.He says Lieberman’s charisma is key.“Food TV isn’t about food any more,” says Flay. “It’s about your personality and finding a way to keep people’s eyeballs on your show.”

But Lieberman isn’t putting all his eggs in one basket. After taping the first season of the new show, Lieberman was back in his own small kitchen preparing sandwiches. An airline company was looking for someone to come up with a tasteful, inexpensive and easy-to-make menu to serve on its flights, Lieberman got the job.

1.We can learn from the text that Lieberman’s family __________.

A. love cooking at home　　　　　　　　 B. have relatives in Europe

C. often hold parties　　　　　　　　　 D. own a restaurant

2.The Food Network got to know Lieberman __________.

A. at one of his parties　　　　　　　　 B. from his teachers

C. on a television program　　　　　　 D. through his taped show

3.What does the underlined word “charisma” in the text refer to?

A. A way to show one’s achievement.

B. A natural ability to attract others.

C. Lieberman’s after-class interest.

D. Lieberman’s fine cooking skill.

4.Why did the airline company give Lieberman the job?

A. He could prepare meals in a small kitchen.

B. He was famous for his shows on Food TV.

C. He could cook cheap, delicious and simple meals.

D. He was good at using eggs to make sandwiches.

高三英语阅读理解中等难度题查看答案及解析

Growing up in Philadelphia, Lieberman started cooking with his stay-at-home dad when he was seven. His food-loving family had two kitchens, and he quickly learned what was the best way to bake his cakes. Lieberman improved his kitchen skills during a year abroad beforo college, learning from a cook in Italy and study local specialties in Gerrnany, Spain and France. At Yale,he was known for throwing dinner parties, single-handedly frying and baking while mixing drinks for dozens offriends. Just for fun, he and some friends decided to tape a show named Campus Cuisine about his cooking. Lieberman  was a real  college student showing his classmate how to do things like making drinks out of dining-hall fruit. That helped the show become very popular among the students. They would stop Lieberman after classes to ask for his advice on cooking. Tapes of the show were passed around,with which his name went beyond the school and finally to the Food Network.

Food Network producer Flay hopes the young cook will find a place on the

network television. He says Lieberman's charisma is key."Food T-V isn't about

food anymore." says Flay, " It's about your personality and finding a way to keep

people's eyeballs on your show."

But Lieberman isn't putting all his eggs in one basket. After taping the first season of the new show, Lieberman was back in his own small kitchen preparing

sandwiches. An airline company was looking for someone to come up with a tasteful,

inexpensive and easy-to-make menu to serve on its flight. Lieberman got the job.

1.We can learn from the text that Lieberman's family______.

A. have relatives in Europe       B.love cooking at home

C. often hold parties             D. own a restaurant

2. The Food Network got to know Lieberman________.

A. at one of his parties        B. from his teacher

C. through his taped show       D. on a television program

3.What does the word"charisma" underline in the text refer to ?

A. A natural ability to attract others.     B. A way to show one's achievement.

C. Lieberman's after-class interest      D. Lieberman's fine cooking skill

4.Why did the airline company give Lieberman the job?

A. He could prepare meals in a small kitchen.

B. He was famous for his shows on Food TV.

C. He was good at using eggs to make sandwiches.

D. He could cook cheap, delicious and simple meals.

5. What can we learn about Lieberman from the text?

A. He is clever but lonely.      B. He is friendly and active.

C. He enioys traveling around.   D.He often changes his menus.

高三英语阅读理解中等难度题查看答案及解析

It was almost midnight when the fire ____ in the neighborhood.

A. broke up         B. broke down    C. broke in        D. broke out

高三英语单项填空简单题查看答案及解析

When John was growing up, other kids felt sorry for him. His parents always had him weeding the garden, carrying out the garbage and delivering newspapers. But when John reached adulthood, he was better off than his childhood playmates. He had more job satisfaction, a better marriage and was healthier. Most of all, he was happier. Far happier.

These are the findings of a 40-year study that followed the lives of 456 teenage boys from Boston. The study showed that those who had worked as boys enjoyed happier and more productive lives than those who had not. ＂Boys who worked in the home or community gained competence(能力) and came to feel they were worthwhile members of society,＂ said George Vaillant, the psychologist(心理学家) who made the discovery. ＂And because they felt good about themselves, others felt good about them.＂

Vaillant’s study followed these males in great detail. Interviews were repeated at ages 25,31 and 47. Under Vaillant, the researchers compared the men’s mental-health scores with their boyhood-activity scores. Points were awarded for part-time jobs, housework, effort in school, and ability to deal with problems.

The link between what the men had done as boys and how they turned out as adults was surprisingly sharp. Those who had done the most boyhood activities were twice as likely to have warm relations with a wide variety of people, five times as likely to be well paid and 16 times less likely to have been unemployed. The researchers also found that IQ and family social and economic class made no real difference in how the boys turned out.

Working — at any age — is important. Childhood activities help a child develop responsibility, independence, confidence and competence — the underpinnings(基础) of emotional health. They also help him understand that people must cooperate and work toward common goals. The most competent adults are those who know how to do this. Yet work isn’t everything. As Tolstoy once said, ＂One can live magnificently in this world if one knows how to work and how to love, to work for the person one loves and to love one’s work.＂

1.What do we know about John?

A.He enjoyed his career and marriage.

B.He had few childhood playmates.

C.He received little love from his family.

D.He was envied by others in his childhood.

2.Vaillant’s words in Paragraph 2 serve as　　　.

A.a description of personal values and social values

B.an analysis of how work was related to competence

C.an example for parents’ expectations of their children

D.an explanation why some boys grew into happy men

3.Vaillant’s team obtained their findings by　　　.

A.recording the boys’ effort in school

B.evaluating the men’s mental health

C.comparing different sets of scores

D.measuring the men’s problem solving ability

4.What does the underlined word ＂sharp＂ probably mean in Paragraph 4?

A.Quick to react. B.Having a thin edge.

C.Clear and definite. D.Sudden and rapid.

5.What can be inferred from the last paragraph?

A.Competent adults know more about love than work.

B.Emotional health is essential to a wonderful adult life.

C.Love brings more joy to people than work does.

D.Independence is the key to one’s success.

高三英语阅读理解中等难度题查看答案及解析