欧美日韩黄网欧美日韩日B片|二区无码视频网站|欧美AAAA小视频|久久99爱视频播放|日本久久成人免费视频|性交黄色毛片特黄色性交毛片|91久久伊人日韩插穴|国产三级A片电影网站|亚州无码成人激情视频|国产又黄又粗又猛又爽的

相關(guān)習(xí)題
 0  89839  89847  89853  89857  89863  89865  89869  89875  89877  89883  89889  89893  89895  89899  89905  89907  89913  89917  89919  89923  89925  89929  89931  89933  89934  89935  89937  89938  89939  89941  89943  89947  89949  89953  89955  89959  89965  89967  89973  89977  89979  89983  89989  89995  89997  90003  90007  90009  90015  90019  90025  90033  151629 

科目: 來源: 題型:閱讀理解

An eighteen-year-old high school student from Utah won the top prize in the Intel Science Talent Search in the United States. The winner received a computer and a scholarship for a college education.
More than 1,500students from across the country entered projects in the competition this year. Their research included chemistry, medicine, physics, mathematics, engineering, and computer science-almost every area of science.
Forty students were invited to Washington, D.C. for the final judging. A group of scientists judged them on their research abilities, critical thinking skills and creativity. The judges also questioned the students about scientific problems before deciding on the winners.
The top winner received 100,000 dollars for college. Shannon Babb of American Fork High School studied the water quality of tile Spanish Fork River in Utah for six years. She found that people have a harmful effect on the river through human activity, including agriculture. And she suggested ways to improve the water quality in the future. These include educating the public not to put household chemicals down the drains(下水道), which lead to the river eventually.
Seventeen-year-old Yi Sun of the Hanker School in San Jose, California, earned the second place. He won a 75,000-dollar scholarship for new discoveries about a mathematical theory known as random walks. His work could help computer scientists and chemists. Yi Sun was born in China.
The third-place winner was also seventeen and born in China. Yuan “Chelsea” Zhang of Montgomery Blair High School in Rockville, Maryland, won a 50,000-dollar scholarship. She researched the molecular genetics(分子遺傳學(xué))of heart disease. Her findings could aid the development of new medicines.
The Intel Science Talent Search is the oldest science competition for high school students in the United States. It is 65 years old this year. Past winners have gone on to receive six Nobel prizes and other top honors in science and math.
【小題1】What do we know about the talent search project?  

A.Most of its winners have received Nobel prizes.
B.The project includes researches in every area of science.
C.Only a small part of the students can attend the final judging.
D.Most of the winners come from Asian countries.
【小題2】According to the text,         .   
A.water quality in Utah will be better than that in the other states
B.the river was polluted only by those living near it
C.Shannon Babb suggested more than one way to improve the water quality
D.household chemicals should be kept in the drains forever
【小題3】Which of the following about the girl from Maryland is NOT true? 
A.The scholarship she received was half as many as Shannon Babb.
B.Her discovery is of great help to Chinese medicine.
C.Her research will contribute to the cure of heart disease.
D.She and the second-place winner Yi Sun have something in common.
【小題4】What is the text mainly about?  
A.Three winners' contributions to science and math.
B.Three Chinese students won the Science Talent Search.
C.Great rewards were given to winners in the competition.
D.Winners of the Intel Science Talent Search in the US.
【小題5】Where are you most likely to find this text?  
A.In a newspaper.B.In a handbook.C.In a textbook.D.In a medical magazine.

查看答案和解析>>

科目: 來源: 題型:閱讀理解



You have probably heard of the Mozart effect. It’s the idea that if children or even babies listen to music composed by Mozart, they will become more intelligent. A quick Internet search reveals plenty of products to assist you in the task. Whatever your age there are CDs and books to help you taste the power of Mozart’s music, but when it comes to scientific evidence that it can make you more clever, the picture is more mixed.
The phrase “the Mozart effect” was made up in 1991, but it was a study described two years later in the journal Nature that sparked real media and public interest about the idea that listening to classical music somehow improves the brain. It is one of those ideas that sound reasonable. Mozart was undoubtedly a genius himself; his music is complex and there is a hope that if we listen to enough of it ,we’ll become more intelligent.
The idea took off, with thousands of parents playing Mozart to their children, and in 1998 Zell Miller, the Governor of the state of Georgia in the US, even asked for money to be set aside in the state budget so that every newborn baby could be sent a CD of classical music. It was not just babies and children who were exposed to Mozart’s music on purpose, even an Italian farmer proudly explained that the cows were played Mozart three times a day to help them to produce better milk.
I’ll leave the debate on the impact on milk yield to farmers, but what about the evidence that listening to Mozart makes people more intelligent? More research was carried out but an analysis of sixteen different studies confirmed that listening to music does lead to a temporary improvement in the ability to handle shapes mentally, but the benefits are short-lived and it doesn’t make us more intelligent.
【小題1】What can we learn from paragraph 1?

A.Mozart composed many musical pieces for children.
B.Children listening to Mozart will be more intelligent.
C.There are few products on the Internet about Mozart’s music.
D.There is little scientific evidence to support Mozart effect.
【小題2】Why did many people believe in the idea of Mozart Effect?
A.Because a study described it in the journal Nature.
B.Because Mozart himself was a genius.
C.Because Mozart’s music is enjoyable.
D.Because Mozart’s music makes people relaxed.
【小題3】The underlined sentence in paragraph3 suggests that       .
A.people were strongly against the idea
B.the idea was accepted by many people
C.Mozart played an important part in people’s life
D.the US government helped promote the idea
【小題4】What is the author’s attitude towards the Mozart effect?
A.FavorableB.ObjectiveC.DoubtfulD.Positive
【小題5】What would be the best title for the passage?
A.Listening to Mozart , necessary?B.What music is beneficial?
C.What is the Mozart effect?D.To be or not to be?

查看答案和解析>>

科目: 來源: 題型:閱讀理解

Debra Veal is a very brave woman. She took part in a race to row across the Atlantic,a journey for about 3, 360 kilometers. She was in one of the 36 small rowing boats that set off on October 7th,  2001 from Tenerife. Each small boat was the same with food for the journey. She arrived in Barbados on January 26th ,  2002 after rowing across the Atlantic for three-and-a-half months.
Debra began the journey with her husband in a small boat called Troika Transatlantic. But after 14 days he became very afraid, so he was taken off the small rowing boat. This did not make Debra give up. For the next hundred days, she rowed her small boat against the waves and the wind.
When she at last arrived at the end of her journey,  she was reluctant ( 不情愿的 ) to leave her boat though her husband and family were there to welcome her. The boat had carried her safely to the end of the journey. She said,  "I just want to toast(給……敬酒)this lady, this very special lady. I am full of sadness that I will have to leave her. She has protected me through many storms. "
【小題1】Debra Veal's husband gave up because_________.

A.he had to look after their childB.it was a dangerous journey
C.there was no food for the journeyD.he was fed up with the journey
【小題2】"this lady" refers to_________.
A.her motherB.her boatC.herselfD.the journey
【小題3】Which of the following is right?
A.The journey lasted 100 days.
B.Each boat was different.
C.Debra Veal wanted to leave her boat as soon as the race ended.
D.It was hard to get to the end of the journey.

查看答案和解析>>

科目: 來源: 題型:閱讀理解

Many children would start school hungry without breakfast clubs, teachers have claimed. A new survey suggests these clubs are the only way many students can get a meal before lessons.
About 54% of the 552 school staff questioned by the Association of Teachers and Lecturers(ATL)said their school provides a breakfast club for pupils. The biggest reason for them to attend these clubs is that their parents or carer goes to work early, cited by 76.8% of those questioned.
About 22.6% said children attended due to lack of money at home because parents or carers are unemployed and 15.2% said lack of money at home due to changes or cuts to benefits.
About 17.6% said pupils mainly attend breakfast clubs to socialize.
The survey found that teachers believe that offering breakfast to pupils often helps improve their concentration and ability to learn. One primary school teacher said: “Although there is a charge for our breakfast club, we have accessed funding for those pupils on free school meals and the breakfast club had an effect on their attendance, concentration and being in school for the start of lessons.
ATL general secretary Dr Roper said a nutritious meal at the start of the day has a huge impact on pupils’ ability to learn. “Many schools do everything they can to ensure children eat well during school term-time. But there are many children living in poverty, who we fear won’t be getting a decent meal a day in the holidays and this is something the government needs to address,” she said.
A Department for Education spokesman said: “We know how important it is for children to
have a good breakfast. We want schools and local authorities to use their budgets to best meet the needs of their children. Many provide breakfast clubs which offer a free meal to children from poorer families. The Pupil Premium, which will double to £ 2.5 billion in 2014-2015, targets extra money to help schools to provide support such as this to the most disadvantaged children. The free school meal scheme also ensures that these children have access to a nutritious lunch every day.
【小題1】How many factors are mentioned which can account for the popularity of breakfast clubs?

A.Two.B.Three.C.Four.D.Five.
【小題2】By getting breakfast offered by breakfast clubs, pupils can______.
A.perform better in their study
B.know how they can save money
C.eat better for their lunch and supper
D.make more friends with their classmates
【小題3】The pupil Premium and the free school meal scheme are mentioned in order to show_____.
A.every child should get access to a nutritious meal
B.breakfast clubs play a key role in children’s growth
C.many efforts are made to provide a good and free meal
D.many schools can’t offer a good and free meal to children
【小題4】In which part of a magazine can we probably read this passage?
A.Entertainment.B.Education.C.Culture.D.Health.

查看答案和解析>>

科目: 來源: 題型:閱讀理解

The Healthy Habits Survey(調(diào)查)shows that only about one third of American seniors have correct habits. Here are some findings and expert advice.
1. How many times did you brush your teeth yesterday?
·Finding:A full 33% of seniors brush their teeth only once a day.
·Step: Remove the 300 types of bacteria in your mouth each morning with a battery-operated toothbrush. Brush gently for 2 minutes, at least twice a day.
2. How many times did you wash your hands or bathe yesterday?
·Finding:Seniors, on average, bathe fewer than 3 days a week. And nearly 30% wash  their hands only 4 times a day—half of the number doctors recommend.
·Step:We touch our faces around 3,000 times a day—often inviting germs(病菌)to enter our mouth, nose, and eyes. Use toilet paper to avoid touching the door handle. And, most important, wash your hands often with hot running water and soap for 20 seconds.
3. How often do you think about fighting germs?
·Finding:Seniors are not fighting germs as well as they should.
·Step:Be aware of germs. Do you know it is not your toilet but your kitchen sponge(海綿)that can carry more germs than anything else? To kill these germs, keep your sponge in the microwave for 10 seconds.
【小題1】What is found out about American seniors?

A.Most of then have good habits.
B.Nearly 30% of then bathe three days a week.
C.About one third of them brush their teeth only once a day
D.All of them are fighting germs better than expected.
【小題2】Doctors suggest that people should wash their hands______.
A.twice a day
B.three times a day
C.eight times a day
D.four times a day
【小題3】Which of the following is true according to the text?
A.We should keep from touching our faces.
B.A kitchen sponge can carry more germs than a toilet.
C.There are less than 300 types of bacteria in the mouth.
D.We should wash our hands before touching a door handle.
【小題4】The text probably comes from______.
A.a(chǎn) popular magazine
B.a(chǎn) guide book
C.a(chǎn) book review
D.a(chǎn)n official document

查看答案和解析>>

科目: 來源: 題型:閱讀理解

Having a teenager at home can be a real headache. Many teenagers smoke, drink and even fight. They often do something dangerous.
Earlier studies have shown that teenagers are more likely (可能) to make irrational decisions than people from any other age group, including children and adults. Is it that teenagers are too young to tell right from wrong? Not really. So what’s the reason?
According to Laurence, a teacher from a US university, the reason is that teenagers care a lot about how their peers (同齡人) view them—that is “peer influence”.
As children enter their teenage years, they spend more time with their friends and classmates, and also they care more about what they think of them. This makes teenagers make decisions without thinking about the costs.
In a test, a group of teenagers were asked to play a video driving game. When they played with their friends watching around them, they took more chances and drove more carelessly because that would increase their possibility of winning. But when they played alone, they drove more safely.
Why do peers have such a big influence on teens’ behavior?
As Laurence sees it, a teenager’s brain is like a car with a good accelerator (油門) but a weak brake (剎車). The “accelerator” is fully developed by teenage years while the “brake” is still not fully developed. When teenagers are watched by their peers, they usually push hard on the accelerator. With their weak brake, it is likely that they are going to end up in an accident.
But the good news is that a violent (暴力的)teenager doesn’t necessarily become a violent adult. About two-thirds to three-quarters of violent youth grow out of it. “They get more self-controlled.” 
【小題1】What does the underlined word “irrational” in the 2nd paragraph mean?

A.Quick. B.Crazy. C.Careful. D.Correct. 
【小題2】Why are teenagers likely to make wrong decisions according to the text?   
A.They like difficult tasks. 
B.They don’t care about costs. 
C.They are too young to tell right from wrong. 
D.They care a lot about what their peers think of them. 
【小題3】How does Laurence explain the influence of peer pressure on teens’ behavior?
A.By comparing it with how a car works. 
B.By comparing it with an accident. 
C.By showing research findings. 
D.By giving examples. 
【小題4】According to the text, with peers around them, teenagers are more likely to _______ .
A.use more self-control 
B.perform better than when they are alone 
C.become more careful about what they do 
D.care about winning without thinking about danger 

查看答案和解析>>

科目: 來源: 題型:閱讀理解

Everyone has done experiments in high school laboratories, but have you ever thought about designing a satellite to explore space?
On Nov. 19, a team of students from Thomas Jefferson High School for Science and Technology in the US awed peers and even scientists by successfully launching a satellite.
The first satellite designed and built by high school students was sent up into space along with a record-setting. 28 other small ones on a rocket were sent from a NASA center in Virginia, CNN reported. It took the students seven years to build.
The students call their tiny satellite TJ3Sat, which is named after their school. It is just 10x10x12 centimeters and weighs only 0.89 kilograms, according to Orbital Sciences, a company which developed the rocket and supported the students’ project. It can be controlled with a smartphone.
Like most satellites, TJ3Sat can send and receive data. The small spacecraft is equipped with a voice synthesizer (合成器), which can switch text to voice and transmit those sounds back to Earth over radio waves, said Orbital officials. In this case, anyone can give it a try via the project’s website (school website) by submitting (提交) a text. The texts that get approved will be sent to the satellite, changed to voice and then broadcast back to Earth via radio waves.
“I can say ‘Go Colonials’ on our ground station and when it is on the other side of the world, in India, someone can hear ‘Go Colonials’over the radio,” the team explains on the website.
The satellite will stay in space for at least three months.
School principal Evan Glazer told The Washington Post that the project started in 2006 as an activity in the spare time. Later it became a research project for a select group of seniors.
At a time when American students are busy with SATs, the launch of the satellite shows what diligent teenagers can achieve when allowed to pursue their own curiosities, Glazer said.
“It used to be that kids growing up wanted to be an astronaut,” Andrew Petro, program executive (主管) for small spacecraft technology at NASA, said in a statement. “I think we might be seeing kids saying what they want to do is build a spacecraft. The idea here is that they really can do that.”
【小題1】 The underlined word “awed” in the second paragraph is closest in meaning to ___.

A.influenced  B.a(chǎn)mazed C.delighted  D.inspired 
【小題2】Which of the following statements about TJ3Sat is TRUE according to the article?
A.It took a group of students about a decade to build the satellite. 
B.Besides TJ3Sat, 28 other small satellites were built by the students. 
C.TJ3Sat can receive text messages that the students send into space, which it can change to voice messages and broadcast back to Earth. 
D.TJ3Sat is expected to stay in orbit for the next year, sending out messages together with information about its position in space. 
【小題3】According to the article, the launch of the satellite _______.
A.is evidence of the advance of spacecraft technology 
B.proves that hard-working teenagers can achieve a lot 
C.shows the importance of extracurricular activities at school 
D.has inspired many people to take an interest in space travel 

查看答案和解析>>

科目: 來源: 題型:閱讀理解

For their nick-of-time acts, Toby, a 2-year-old dog, and Winnie, a cute cat, were named Dog and Cat of the Year by the American Society for the Prevention of Cruelty to Animals.
As Amy Paul choked(哽住) on a piece of apple at her home, her dog jumped up, landing hard on her chest and forcing the piece in her throat out. When the Keesling family of Indiana was about to be killed by carbon monoxide, their cat clawed at the wife Cathy’s hair until she woke up and called for help.
No one could explain their timely heroics.
Both pets were rescued by their owners in infancy---Toby as a 4-week-old thrown into a garbage bin to die, and Winnie as a week-old orphan hiding under a barn, so helpless that Cathy’s husband, Eric, had to feed her milk with an eyedropper.
As the Keeslings recalled it, a gas-driven pump being used broke down, spreading carbon monoxide through the house. By the time Winnie went to rescue, the couple’s 14-year-old son was already unconscious. “Winnie jumped on the bed and was clawing at me, with a kind of angry sound,” Cathy Keesling said. The state police responding to her 911 call said the family was only minutes from death, judging by the amount of poisonous gas in the house.
Amy Paul’s husband was at his job when she took a midday break from making jewelry and bit into an apple. “Normally I peel them, but I read in Good Housekeeping Magazine that the skin has all the nutrients, so I ate the skin, and that’s what caused me to choke,” she recalled. “I couldn’t breathe and I was in panic when Toby jumped on me. He never does that, but he did, and saved my life.”
Both Toby and Winnie accompanied their owners to the awards luncheon.
【小題1】Why did Amy Paul choke on a piece of apple?

A.She was too young to care for herself.
B.She didn’t peel the skin as usual.
C.The apple was too hard.
D.She had a big bite.
【小題2】Winnie saved the lives of its owner’s whole family in an accident by __________.
A.jumping onto its owner
B.calling for help
C.clawing at Cathy’s hair
D.making some strange noises
【小題3】Which of the following has the similar meaning to the underlined word “infancy” in  Paragraph 4?
A.middle age B.youth C.babyhood D.a(chǎn)gedness
【小題4】What caused the carbon monoxide spreading through the house?
A.A pump breaking down.
B.A driver breaking into the house.
C.The burning gas.
D.The poisonous gas.
【小題5】What would be the suitable title for the passage?
A.So Smart Animals Are
B.Great Honors for Cat and Dog
C.Unforgettable Experiences
D.Dog and Cat Honored for Saving Their Masters

查看答案和解析>>

科目: 來源: 題型:閱讀理解



Students from Florida International University in. Miami walked on water Thursday for a class assignment. To do it, they wore aquatic (水上的)shoes they designed and created.
Alex Quinones was the first to make it to the other side of a 175-foot lake on campus in record time - just over a minute. Quinones, who wore oversized boat-like shoes, also won last year and will receive $ 500. Students had to wear the aquatic shoes and make it across the lake in order to earn an '6A" on the assignment for Architecture Professor Jaime Canaves, Materials and Methods Construction Class. "It's traditional in a school of architecture to do boats out of cardboard for a boat race. I thought our students were a little bit more special than that, " Canaves said. "We decided to do the walk on water event to take it to the next level. "
A total of 79 students competed in the race this year in 41 teams. Only 10 teams failed to cross the lake. Others who fell got back up and made it to the end. The race is open to all students and anyone in the community. The youngest person to ever participate was a 9-year-old girl who competed in place of her mother, while the oldest was a 67-year-old female.
A large crowd on campus joined Canaves as he cheered on the racers. He shouted encouraging words, but also laughed as some unsteadily made their way to the end.
"A part of this is for them to have more understanding of designing and make it work better, " he said. It is also a lesson in life for the students.
"Anything, including walking on water, is possible, if you do the research,test it and go through the design process seriously.
【小題1】Which statement about Alex 'Quinones is ture ?

A.He finished the race in less than a minute.
B.He won the race with the help of 2 boats.
C.He failed the race last year.
D.He set a new record this year.
【小題2】 For what purpose did the students take part in the race?
A.To go across the lake to school.
B.To test their balance on the water.
C.To pass Professor Canaves’ class.
D.To win the prize money of $ 500.
【小題3】Which of the following is true about the race?
A.The students who fell into the water had to quit.
B.More than 20 teams failed to cross the lake.
C.The students kept silent when the other racers competed.
D.The youngest competitor competed instead of her mother.
【小題4】According to Canaves, this race can help the students
A.understand designing better B.a(chǎn)chieve almost everything
C.work together and unite as one D.walk on the surface of water
【小題5】What is the purpose of this passage?
A.To advertise a student' s program.
B.To report an interesting assignment.
C.To introduce a creative professor.
D.To encourage special events on campus.

查看答案和解析>>

科目: 來源: 題型:閱讀理解

Xinhua News Agency-The International Conference on Power Engineering (ICOPE) 2013, organized by the Chinese Society of Power Engineering, School of Energy and Power Engineering, China-EU Institute for Clean and Renewable Energy, opened in Wuhan, on Oct 24. More than 300 energy experts, scholars and businessmen from countries and areas including the United States, Japan, the EU, Australia, South Africa, Thailand, Nigeria, Arab and China are attending the three-day academic conference on the world’s energy problems.
Professor Zheng Chuguang, from the School of Energy and Power Engineering at Huazhong University of Science and Technology, gave a speech on the development of oxygen fuel technology in China, and said that settling the problem of cost ranks highest.
George Saxon, vice-president of Conco Systems Inc, US, presented a report on the topic of Energy Engineer to Shape the Future. He said that the company’s research and innovation (創(chuàng)新) are of great significance for the future and already contribute to reducing costs and improving efficiency (效率).
Professor Didier Mayer from the Ecole des Mines de Paris, France, spoke about “Wind Energy R&D Line Based on the Global Renewable Energy Status”, and Professor Yasuo Koizumi of Shinshu University in Japan and Li Chun-Zhu of Curtin University of Technology in Australia also gave speeches at the conference.
The academic meetings are expected to cover topics from various fields. In addition, the participants will discuss the most advanced academic research around the world, the latest progress and development trends in the various fields. The conference has attracted 232 academic papers, with 176 papers from China, and 56 from abroad.
【小題1】Who probably attended the meeting?

A.Students from high schools. B.Scholars from Canada. 
C.Officials from governments. D.Experts from companies. 
【小題2】 According to Professor Zheng, what matters most about energy problems?
A.Reducing cost. B.Using wind energy. 
C.Saving energy. D.Developing new fuels. 
【小題3】Which of the following statements is true?
A.300 participants are attending the two-day academic conference. 
B.George Saxon supports the company’s research and innovation. 
C.Didier Mayer gave a speech on oxygen fuel technology in China. 
D.The conference has attracted 232 academic papers from abroad. 
【小題4】What is the purpose of the passage?
A.To discuss the world energy problems. 
B.To introduce to readers some energy experts. 
C.To introduce an international energy conference.  
D.To show the world’s great concern about environment. 

查看答案和解析>>

同步練習(xí)冊(cè)答案