A great invention by an 18-year-old high school student grew out of a simple problem most teenagers meet with.
“I'm a teenager and I have a cellphone and my cellphone battery always dies，so I was really looking for a way to improve energy storage，” Eesha Khare said on Tuesday. “That's how I came across the super capacitor.”
The teenager who came from California, and graduated from high school last week，won a $50，000 prize on May 17，2013 at the Intel International Science and Engineering Fair for creating a device that can store enough energy to charge a cellphone in 20 to 30 seconds.
“It charges very quickly and can store a lot of energy，” Khare said. “The cool thing is that it's a lot thinner than one strand of hair.”
Khare hasn't used her invention to recharge a cellphone yet，but she used it to power a light-emitting diode (LED) in order to show its capability(容量). If used on cellphones，the supercharger would slide on to the phone's battery to juice it up in a matter of seconds. The technology isn't available to consumers yet，and it could be years until it is.
At an Intel event in Phoenix，Khare won the Intel Foundation Young Scientist Award，taking second place overall in the world's largest high school science research competition. She beat out more than 1，600 finalists from 70 countries. She said that she has been approached by several companies to continue her research，but she is now focused on attending Harvard University in autumn.
“Right now，just my education，but hopefully we'll see what happens in the future，” she said about her plans. “I have a lot of interests，so we'll see what I do in the future.”
1.The passage starts with ________．
A. what problem most teenagers meet with in life
B. how Khare helped others with their problems
C. why Khare decided to make the invention
D. how teenagers make use of their cellphones
2.According to the passage, Khare ________．
A. was most probably born in 1995
B. will graduate from high school
C. will donate much of her prize
D. is the first teenager to win such a big prize
3.The super capacitor ________．
A. is as thin as a hair
B. can produce enough energy soon
C. has been popular on the market
D. has not been put in use in daily life
高二英语阅读理解中等难度题
A great invention by an 18-year-old high school student grew out of a simple problem most teenagers meet with.
“I'm a teenager and I have a cellphone and my cellphone battery always dies，so I was really looking for a way to improve energy storage，” Eesha Khare said on Tuesday. “That's how I came across the super capacitor.”
The teenager who came from California, and graduated from high school last week，won a $50，000 prize on May 17，2013 at the Intel International Science and Engineering Fair for creating a device that can store enough energy to charge a cellphone in 20 to 30 seconds.
“It charges very quickly and can store a lot of energy，” Khare said. “The cool thing is that it's a lot thinner than one strand of hair.”
Khare hasn't used her invention to recharge a cellphone yet，but she used it to power a light-emitting diode (LED) in order to show its capability(容量). If used on cellphones，the supercharger would slide on to the phone's battery to juice it up in a matter of seconds. The technology isn't available to consumers yet，and it could be years until it is.
At an Intel event in Phoenix，Khare won the Intel Foundation Young Scientist Award，taking second place overall in the world's largest high school science research competition. She beat out more than 1，600 finalists from 70 countries. She said that she has been approached by several companies to continue her research，but she is now focused on attending Harvard University in autumn.
“Right now，just my education，but hopefully we'll see what happens in the future，” she said about her plans. “I have a lot of interests，so we'll see what I do in the future.”
1.The passage starts with ________．
A. what problem most teenagers meet with in life
B. how Khare helped others with their problems
C. why Khare decided to make the invention
D. how teenagers make use of their cellphones
2.According to the passage, Khare ________．
A. was most probably born in 1995
B. will graduate from high school
C. will donate much of her prize
D. is the first teenager to win such a big prize
3.The super capacitor ________．
A. is as thin as a hair
B. can produce enough energy soon
C. has been popular on the market
D. has not been put in use in daily life
高二英语阅读理解中等难度题查看答案及解析
In 1965, 17-year-old high school student Randy Gardner stayed awake for 264 hours to see how he’d cope without sleep. On the second day, his eyes stopped focusing. Next, he lost the ability to ________ objects by touch. By day three, Gardner was moody and uncoordinated. At the end of the experiment, he was ________ to concentrate, had trouble with short-term memory and started hallucinating(出现幻觉). Although Gardner recovered without long-term psychological or physical ________, for others, sleeplessness can result in hormone(激素) imbalance, illness, and even death.
Sleep is ________. Adults need 7 to 8 hours of sleep at night, and adolescents need about 10. In the United States, it's estimated that 30% of adults and 66% of adolescents are ________ sleep deprived. When we lose sleep, learning, memory, mood, and reaction time are affected. Sleeplessness may also cause inflammation, hallucinations, high blood pressure, and it's even been ________ to diabetes and obesity.
How can sleep ________ cause such enormous suffering? Scientists think the answer lies with the ________ of waste products in the brain. During our waking hours, our cells are busy using up our day's energy sources with get broken down into various by-products, including adenosine(腺苷酸). As adenosine builds up, it increases the ________ to sleep, also known as sleep pressure. In fact, caffeine works by ________ adenosine's receptor pathways. Other waste products also build up in the brain, and if they're not cleared away, they collectively ________ the brain and are thought to lead to the many negative symptoms of sleep deprivation.
So, what's happening in our brain when we sleep, to prevent this? Scientists found something called the Lymphatic System, a clean-up mechanism(机能) that removes this build up and is much more ________ when we're asleep. It works by using cerebrospinal fluid(脑脊髓液) to flush away toxic by-products that accumulate between cells. Lymphatic vessels, which ________ pathways for immune cells have recently been discovered in the brain, and they may also play a role in ________ the brain's daily waste products. While scientists continue exploring the restorative mechanisms behind sleep, we can be sure that sleeping is a(n) ________ if we want to maintain our health and our sanity.
1.A.produce B.identify C.move D.discover
2.A.balancing B.reminded C.struggling D.intended
3.A.ability B.outcome C.response D.damage
4.A.essential B.healthy C.investigated D.neglected
5.A.scarcely B.temporarily C.regularly D.hopefully
6.A.occurred B.linked C.increased D.developed
7.A.deprivation B.sufficiency C.absence D.pressure
8.A.accumulation B.discovery C.resource D.prevention
9.A.symptom B.power C.difficulty D.urge
10.A.clearing B.blocking C.holding D.assisting
11.A.overload B.pollute C.protect D.explore
12.A.harmful B.active C.tense D.necessary
13.A.serve as B.block up C.tear down D.point to
14.A.analyzing B.removing C.following D.dividing
15.A.system B.priority C.opportunity D.necessity
高二英语完形填空困难题查看答案及解析
阅读下面材料，在空白处填入适当的内容或括号内单词的正确形式。
Jean is a 17-year-old high school student. On Saturday mornings, Jean and her friends take part in the program ＿1.＿(call) SAVE THE KIDS. They travel to a poor area of Washington D.C.. They help ＿2.＿(young) students learn how to read and to solve mathematics problems. Many American teenagers join in programs ＿3.＿ serve their communities. ＿4.＿ weekends Jean sometimes works at an ice-cream store. ＿5. she is not working, she gets together with her girlfriends. They might go to a movie, to a shopping mall or to an eating place. Or they might attend ＿6.＿ sports event of their high school. They also often stay at one girl’s house for night.
Like teenagers in most parts of the country , Jean began driving a car when she was 16 years old. 7.＿, she does not have her car. She must share the family car with her parents. About 70 percent of American teenagers have their own cars. Many of them drive their cars to school every day. Jean does not smoke cigarettes or drink alcohol. Neither do her friends. But many teenagers at her school do. Every weekend teenagers have parties, where ＿8.＿ drink alcohol. Then they drive to other parties. People under the age of 21 ＿9.＿(not allow) to drink alcohol in the United States. And it is dangerous to drink ＿10.＿ driving a car. Yet this does not stop some teenagers.
高二英语语法填空简单题查看答案及解析
In the USA the high school graduation ceremony is of great 1. (important). 12th grade students, or seniors, who are about 17 or 18 years old, look forward to 2. (attend) this event.
The graduation ceremony itself takes place at the end of May or beginning of June, which usually 3. (include) music awards, and a guest speaker. After the speech, students walk to the front of the room to receive their diplomas from the headmaster. Students start preparing for graduation a long time 4. it happens. They order rings designed 5. (special) for their class.
Another tradition is to have their photographs 6. (take). These photographs are used 7. the class yearbook, which is a printed book about all the students in the school. Students have special cards called announcements printed to send to friends and relatives to tell them about their graduation. The cards often include 8. invitation to the ceremony. If you receive it, you should send a present 9. money to the graduate. A few weeks before the ceremony, the students are measured the cap that they will wear at the ceremony. After the ceremony, 10. (family) usually have graduation parties for friends and relatives. It’s a day and a night that high school seniors remember for a long time.
高二英语完形填空中等难度题查看答案及解析
Chuck was one of my students in my high school English class. He was a writer of great 21. So, when he was accepted into the journalism program at the University of Missouri, I wasn’t 22.
During his first year at college, Chuck would stopp by the school a few times to keep me informed of his 23. We recalled（回忆）that we had worked together several years before to 24 money for some sick African babies who were being cared for by a nurse friend of mine in Thailand, a place far away yet close to our 25. Chuck raised several thousand dollars. It was an activity that 26 our common relationship into a friendship.
In his second year at college, it was discovered that Chuck had lung cancer and had only a short while to 27. I went to see him one day. Seeing me, he was filled with 28 and we talked and laughed for most of the afternoon.
About six weeks later, Chuck died. It was a great 29 for everyone, especially for his family. Chuck was 30 and full of promise. More 31, he was a good person, a just person.
When I went to his funeral（葬礼）, his father told me that several weeks before, Chuck had asked him to 32 his possessions with him so that he might select a few things to be buried together with him . Chuck 33 six items, including an essay(论文) he had written.
He told me that Chuck liked the 34 I had written to him at the bottom of the last page. In that little note, I affirmed(证实) his talent as a 35.
I was grateful for the 36 gift Chuck gave me that day. His taking my note with him offered me a great opportunity to 37 students’ lives. I felt a sense of purpose that was greater than ever. Whenever I 38 my purpose in teaching, I think of Chuck, and I am reminded of it once again: 39 have the power to affect hearts and 40 for a long time.
1.. A. use B. talent C. height D. assistance
2..A. disappointed B. amused C. excited D. surprised
3.. A. secret B. school C. progress D. family
4. A. raise B. borrow C. spend D. save
5.. A. college B. hearts C. village D. friends
6.. A. transformed B. divided C. put D. devoted
7.. A. spare B. act C. live D. sleep
8.. A. worry B. joy C. pain D. tears
9.. A. honor B. comfort C. day D. loss
10. A. fortunate B. serious C. talented D. unsatisfied
11.. A. importantly B. seriously C. usually D. sincerely
12.. A. go over B. take over C. give away D. threw away
13.. A. added B. bought C. examined D. chose
14.. A. story B. letter C. joke D. message
15.. A. writer B. teacher C. doctor D. comedian
16.. A. excellent B. practical C. special D. expensive
17.. A. believe B. draw C. know D. influence
18. A. remember B. forget C. change D. achieve
19.. A. Parents B. Teachers C. Students D. Strangers
20.. A. health B. appearance C. accents D. minds
高二英语完型填空简单题查看答案及解析
Chuck was one of my students in my high school English class. He was a writer of great 36. So, when he was accepted into the journalism program at the University of Missouri, I wasn’t37
During his first year at college, Chuck would stop by the school a few times to keep me informed of his 38. We recalled that we had worked together several years before to 39 money for some sick African babies who were being cared for by a nurse friend of mine in Thailand, a place far away yet close to our 40. Chuck raised several thousand dollars. It was an activity that 41 our common relationship into a friendship.
In his second year at college, it was discovered that Chuck had lung cancer and had only a short while to 42. I went to see him one day. Seeing me, he was filled with 43 and we talked and laughed for most of the afternoon.
About six weeks later, Chuck died. It was a great 44 for everyone, especially for his family. Chuck was 45 and full of promise. More 46, he was a good person, a just person.
When I went to his funeral, his father told me that several weeks before, Chuck had asked him to 47 his possessions with him so that he might select a few things to be buried together with him . Chuck 48 six items, including an essay he had written.*
He told me that Chuck liked the 49 I had written to him at the bottom of the last page. In that little note, I affirmed(证实) his talent as a 50.
I was grateful for the 51 gift Chuck gave me that day. His taking my note with him offered me a great opportunity to 52 students’ lives. I felt a sense of purpose that was greater than ever. Whenever I 53 my purpose in teaching, I think of Chuck, and I am reminded of it once again: 54 have the power to affect hearts and 55 for a long time.
1.A. use B. talent C. height D. assistance
2.A. disappointed B. amused C. excited D. surprised
3.A. secret B. school C. progress D. family
4. A. raise B. borrow C. spend D. save
5. A. college B. hearts C. village D. friends
6. A. transformed B. divided C. put D. devoted
7. A. spare B. act C. live D. sleep
8. A. worry B. joy C. pain D. tears
9. A. honor B. comfort C. day D. loss
10. A. fortunate B. serious C. talented D. unsatisfied
11. A. importantly B. seriously C. usually D. sincerely
12. A. go over B. take over C. give away D. threw away
13. A. added B. bought C. examined D. chose
14.A. story B. letter C. joke D. message
15. A. writer B. teacher C. doctor D. comedian
16. A. excellent B. practical C. special D. expensive
17. A. believe B. draw C. know D. influence
18.. A. remember B. forget C. change D. achieve
19. A. Parents B. Teachers C. Students D. Strangers
20.A. health B. appearance C. accents D. minds
高二英语完型填空简单题查看答案及解析
Chengdu No. 7 High School, _____________ in 1905, is home to a great many excellent students.
A．found B．founding C．founded D．having founded
高二英语单项填空中等难度题查看答案及解析
On October 23,2016,David Pologruto,a high school physics teacher,was stabbed（刺）by his smart student Jason Haffizulla.Jason got straight A's and was determined to study medicine at Harvard,yet this was his downfall.His physics teacher gave Jason a B,a mark Jason believed would undermine his entrance to Harvard.After receiving his B,Jason took a butcher knife to school and stabbed his physics teacher.
How can someone as smart as Jason do something so dumb?Studies show there is little or no correlation between IQ and emotional intelligence.
During my early university years,I regarded myself as an intelligent guy.I got good marks in mathematics, physics,and other subjects.I thought such skills would surely give me a bright future.After one year of study with decent marks,I began to see two major classes of students.The first category of students turned up to few lectures, partied every weekend,enjoyed a great social life,and did minimal work to pass courses.The second category of students were intelligent and hard workers who got good grades and were very focused on their studies.Surely would these intelligent and hard-working students find the great jobs before the other lazier class of students?
Not so.Students are often shocked upon graduation that their qualifications are not as important as they once thought.Graduates enter the workforce only to realize that co-workers hate them and less intelligent people are the ones receiving promotions.
Educational skills are useless in some industries when interpersonal skills are absent.You can have great ideas, theories,and solve complex problems,but if you cannot effectively communicate in a persuasive and exciting manner by relating to your fellow humans,you will face an uphill battle in whatever challenges you encounter.It's not that people dislike you because of your intelligence;it's that people dislike you because you're rude and not understanding. The intelligent person with poor communication skills is insensitive or unaware of others' emotions.
1.Jason Haffizulla stabbed his physics teacher because_______.
A. he was unfairly treated by his teacher
B. he was disappointed with his downfall
C. he was not smart enough at studies
D. he got a worse mark than usual
2.What does the underlined word "undermine" mean?
A. understand B. destroy
C. dig D. found
3.Intelligent people are hated because_______.
A. they are not considerate enough
B. they can't settle the challenges they meet
C. they are envied for their intelligence
D. they can solve more complex problems
4.What can we learn from this text?
A. The relationship between IQ and emotional intelligence
B. What kind of students can succeed in college
C. Smart people may have poorer communication skills
D. Intelligent students will meet more challenges at work
高二英语阅读理解中等难度题查看答案及解析
As an excellent teacher ,Miss Wang is thought by her students.
A. high B.really
C. hardly D. highly
高二英语单项填空中等难度题查看答案及解析
King's College Summer School is an annual (年度的) training program for high school students at all levels who want to improve their English. Courses are given by the teachers of King's College and other colleges in New York. Tips to museums and culture centers are also organized. This year's summer school will be from July 25 to August 15. More information is as follows：
| Application(申请) date ▼Students in New York should send their applications before July 18, 2015. ▼Students of other cities should send their applications before July 16, 2015. ▼Foreign students should send their applications before July 10, 2015. | Courses ▼English language Spoken English：22hours Reading and Writing：10hours ▼American History：16hours ▼American Culture：16hours |
| Steps ▼A letter of self-introduction ▼A letter of recommendation(推荐) The letters should be written in English with all necessary information. | Cost ▼Daily lessons：200 ▼Sports and activities：100 ▼Travel：200 ▼Hotel service：400 You may choose to live with your friends or relatives in the same city. |
| Please write to：Thompson, Sanders 1026King's Street, New York, NY10016, USA E-mail to：KC-Summer School @yahoo, com |
1.You can most probably read the text in ___________.
A. a newspaper B. a travel guide
C. a textbook D. a telephone book
2.Which of the following is true about King's College Summer School?
A. Only top students can take part in the program.
B. King's College Summer School is run every other year.
C. Visits to museums and culture centers are part of the program.
D. Only the teachers of King's College give courses.
3.If you are to live with your relatives in New York, you will have to pay the school .
A. $200 B. $400
C. $900 D. $500
4.What information can you get from the text?
A. The program will last two months.
B. As a Chinese student, you can send your application on July 14, 2015.
C. You can write to Thompson only in English.
D. You can get in touch with the school by e-mail or by telephone.
高二英语阅读理解简单题查看答案及解析