Scientists added a record of 715 more planets...

Scientists added a record of 715 more planets to the list known to the world beyond the solar system, astronomers said on Wednesday, in February 2014. The additions include four planets about 0.5-2 times as big as Earth that are the right distance from their parent stars for liquid surface water, which is believed to be fit for life.

The discoveries were made with the NASA’s planet-hunting Kepler space telescope. The telescope, launched in 2009, spent four productive years observing 160,000 target stars for signs of planets passing by, within the telescope’s sight.

The numbers of planets announced at a NASA press conference on Wednesday increased Kepler’s confirmed planets from 246 to 961. Combined with other telescopes’ results, the total number of planets beyond the solar system now is nearly 1,700. “We almost doubled, just today, the number of planets known to humans,” astronomer Douglas Hudgins, head of planet exploration at NASA Headquarters in Washington, told reporters on a conference call.

Many planets’ discovery is due to a new technique that analyzes potential planets in batches rather than one at a time. The method was developed after scientists realized that most planets, like those in the solar system, have similar worlds orbiting a common parent star.

The newly found planets strengthen the evidence that small planets, two to three times the size of Earth, are common throughout the galaxy(银河系).

“Generally, wherever (Kepler) can see them, it finds them,” said astronomer Sara Seager, with the Massachusetts Institute of Technology. “That's why we have confidence that there will be planets like Earth in outer space.”

Like the solar system, which has eight planets plus Pluto and other so-called “dwarf planets,” the newly found planets belong to families. But unlike the solar system’s planets, which are about 150 times farther from the sun than Earth. Most of the planets fly nearer to their parent stars than Venus（金星） orbits the sun, a distance of about 67 million miles (108 million km.)

NASA and other space agencies are designing new telescopes to discover planets in so-called “habitable zones” around their parent stars where temperatures would be suitable for liquid surface water. Two papers on the new Kepler research will appear in an upcoming issue of ‘The Astrophysical Journal’.

1.The underlined word ‘batches’ in the fourth paragraph probably means _____ here.

A. continent　 B. program

C. group　 　　 D. association

2.Through Kepler, Scientists have found more planets ________ throughout the galaxy.

A. the same size as Earth

B. about 0.5—2 times as big as Earth

C. twice the size of Earth

D. two to three times the size of Earth

3.Which of the following statements is TRUE according to the passage?

A. All the planets known to the world are believed to be fit for life.

B. There may be liquid surface water on some of the newly found planets.

C. Kepler space telescope spent four years observing 160,000 target planets.

D. The orbits of the newly found planets are just like those of the solar system

4.Which of the following is the most suitable title for this passage?

A. US space telescope discovers more planets

B. Kepler observes many new target stars

C. Scientists believe 715 planets fit for life

D. NASA finds liquid surface water on the planets

高一英语阅读理解中等难度题查看答案及解析

Lots of the scientists in our country are working hard to ____the planet Mars .

A．cover            B．search            C．discover          D． explore

高一英语单项填空中等难度题查看答案及解析

It looks like 2017 is shaping up to be a record-breaking year in movie history. Here is a list of some of the year's biggest blockbusters so far.

Kong: Skull Island

A reboot(重启)of King Kong would normally get laughed at in this day and age, but it looks like this modern version of the story will be worth watching. With US actress Brie Larson and UK actor Tom Hiddleston in the mix, this film is set to be this year's biggest monster tale.

Release Date: 3/10/17

Beauty and the beast

Director Bill Condon is bringing back a part of our childhood in live action, complete with the songs we all remember and love With British stars Emma Watson and Dan Stevens leading the cast, the classic Walt Disney story already sounds like it’ll be a delight for both children and adults.

Release Date: 3/17/17

The Fate of the Furious

There was doubt that wed even get a Fast 8, especially after the fitting ending US actor Paul walker's character was given at the end of Furious 7. Fans thought they'd never see Dom and the rest of the crew back in action, but thankfully, US star Vin Diesel himself confirmed that The Fate of the Furious is fueling up for another go. The actors character, Dom, turns to the dark side, funded by new enemy Cipher, played by South African actress Charlize Theron. Can the rest of Dom s family join together to bring their old leader down? Find out in April.

Release Date: 4/14/17

Spider-Man: Homecoming

Spider Man is heading home to Marvel Studios for the first time. The movie will show us Peter parker's high school days, and will continue the threads we saw formed during his initial appearance in Captain America: Civil War. We know that Michael Keaton is playing The Vulture in this story, and that both Happy Hogan and Tony Stark, played by US actors Jon Favreau and Robert Downey Jr, are along for the ride. But it's Tom Holland’s show as Spider-Man, so let's see what he has in store.

Release Date: 7/7/17

1.Which of the following movies can't you see on May Day?

A. Kong: Skull Island.

B. Beauty and the beast.

C. The Fate of the Furious.

D. Spider-man: Homecoming.

2.What can we know about Beauty and the Beast?

A. It is fueling up for another go.

B. It is produced by Marvel Studios.

C. It'll show us Peter parker' s school days.

D. It'll be enjoyable for both children and adults.

3.Dom, played by ________,turns to the dark side in The Fate of the Furious.

A. Vin Diesel

B. Charlize Theron

C. Paul Walker

D. Dan Stevens

高一英语阅读理解中等难度题查看答案及解析

At the 1924 Olympic Games in Paris, the sport of canoe racing was added to the list of international competitions. The favorite team in the four-man canoe race was the Unites States team. One member of that team was Bill Havens.

As the time for the Olympics neared, it became clear that Bill’s wife would give birth to their first child about the time that the US team would be competing in the Paris games. In 1924, there were no jet airliners from Paris to the Unites States, only slow ocean-going ships. Bill found himself in a dilemma. Should he go to Paris and risk not being at his wife’s side when their baby was born? Or should he stay with his family?

Bill’s wife insisted that he go to Paris. But after much soul searching, Bill decided to stay at home, where he could support his wife when the child arrived. As it turned out , the Unites States four-man canoe team won the gold medal in Paris. And Bill’s wife was late in giving birth to their child. In fact, Bill could have competed in the event and returned home in time to be with her when she gave birth. People said ,” what a shame!”

The child finally born to Bill and his wife was a boy, whom they named Frank. Twenty-eight years later, in 1952, Bill received a telegram from Frank. It was sent from Helsinki, Finland, where the 1952 Olympics were being held. The telegram read, “Dad, I won. I am bringing home the gold medal you lost while waiting for me to be born.” Frank had just won the gold medal for the Unites States in a rowing event, a medal his father had dreamed of winning but never did. When people asked Bill about his decision he made twenty-eight years ago, he said he would make the same choice if he was in such a situation again.

1.If we say some is in a dilemma, we probably mean he/she _____.

A. lives a very hard life

B. has to make a difficult choice

C. has to give up all that he/she has

D. doesn’t know what he/she wants

2. From Paragraph3 we know Bill’s wife ____.

A. knew the baby would be born late

B. knew what her husband really wanted

C. wanted to support her husband to win the gold medal.

D. was not understanding enough to support her husband

3. What is the main reason why people said” what a shame!”？

A. Bill didn’t give his wife any support at home.

B. Bill’s decision caused the team to perform badly.

C. Bill didn’t know what was more important to him.

D. Bill could have returned home with the gold medal in time.

4.What happened twenty-eight years later after the baby’s birth?

A. Bill received a gold medal from Finland.

B. Bill’s son helped make his dream come true.

C. Bill earned the respect of all the American people.

D. Bill took part in the Olympic Games and won.

5.After reading the passage, we infer that ____

A. Bill thought his decision was right.

B. Bill trained his son to win the medal.

C. Bill loved fame more than his family

D. Bill hated his decision very much

高一英语阅读理解中等难度题查看答案及解析

Christa Marie Eastburn has added a new name to the list of people she sends Father’s Day cards to—a father she grew up never knowing. In North Kansas City, the 57-year-old woman thought her father died 54 years ago, but this summer she learned he is alive. "I have a real father to send a card to this time, "she told the newspaper last week. “But I still don’t have everything that goes with it—like the memories.” Her parents, Karl Beinfohr and Ingeborg Mueller, got married in Germany in the 1940s when World War II was on and a year later Marie was born—a daughter who grew up thinking her father, a German soldier, died in the war.

This year, Eastburn found and got in touch with relatives in Germany, hoping they could tell her about her father. One day, a letter arrived in her mailbox.

"All these years of quietness, "Beinfohr wrote, "I don' t know what you have lived through. The news that she had a father who lived an ocean away brought tears to Eastburn's eyes.

Eastburn and her father began writing to each other. In his letters, Beinfohr tried to explain the years lost. Finally, last month, Eastburn went to Germany to meet her father. They looked through old photos. Beinfohr showed his daughter one of her old toys he had kept.

1.What can we infer from the underlined sentence in Paragraph 1?

A. Her father had a poor memory.

B. She had grown up without a father

C. She couldn’t remember her parents at all

D. She didn't know what to write on the card

2.How did Eastburn find out her father is still alive?

A. By contacting relatives in Germany

B. By sending out Father’s Day cards

C. By looking through some old photos

D. By visiting her friends in the world

3.Where does Eastburn most probably live?

A. In Germany

B. In Britain

C. In France

D. In America

高一英语阅读理解简单题查看答案及解析

More than half the planet’s population now live in cities, with limited access to the natural world. For Europe and Latin America, the figure is more than 70%. 1.

Gardening in particular is an opportunity for everyone to have such kind of experience, even if they live in built-up areas. It is typically seen as moderate (适度的) intensity exercise equal to playing doubles tennis or walking at a speed of 3.5mph, so it has similar fitness benefits.

2.Home and gardens have long been important for family food production, but gardening can also encourage people to eat more healthily and act as an educational resource on nutritious food. In fact, children who take part in gardening and grow their own food have a greater preference for, and increased consumption of, fruit and vegetables.

3.Research has shown that gardeners generally have greater life satisfaction, raised self-esteem and fewer feelings of depression and anger than non-gardeners.

This last point suggests that the mental benefits of gardening may be more than just a side-effect of the physical exercise involved, 4.People with strong social networks have an increased life expectancy, less stress and fewer visits to the doctor. In addition, spending time outdoors in a natural environment helps us to feel less stressed, reduce the symptoms of depression, and improve our concentration and attention.

All this evidence shows there’s a strong relationship between gardening and health, but we only know for sure that there is connection, not "cause and effect". 5.We also need to directly examine the immediate effects of gardening on people who have never previously taken part or are suffering from mental and physical ill health.

A. Gardening is also linked to better diets.

B. But more than this, it can promote people’s mental health.

C. One possible reason is that gardening can involve social interaction.

D. A good eating is supposed to include a balance of several food groups.

E. Yet contact with nature has varieties of benefits for both physical and mental health.

F. This means gardening alone is not necessarily a direct cause of any improvements in health.

G. Remaining socially active can also inspire seniors to build confidence and live a healthy life.

高一英语七选五困难题查看答案及解析

In her 17 years on this earth, Shreyaa Venkat has done more to help the planet and the people living on it than many adults. The non-profit organization she founded, NEST4US, has helped tens of thousands of people in the United States. Through it, it’s served over 12,000 homeless people in the Washington, D.C. area by providing food and other supplies.

Venkat’s passion for helping others started as soon as she could walk, as her parents, active volunteers themselves, brought her along on their various projects, like some creative ways to volunteer. By fifth grade, she’d developed such enthusiasm for it that she started organizing her own service projects in her community.

NEST4US was born when she realized how much food waste there is, how many hungry people there are, and how simple it would be to use the former to help the latter. “There was a homeless man standing on a corner in D.C. and he was holding a sign that said ‘Hungry Need Food’,” she recalls. “So I gave him my lunch and his whole face just lit up. It was so easy, it only took me 30 seconds, and it really helped him.”

As NEST4US took off, with hundreds of volunteers helping to feed thousands of hungry people, Venkat decided to branch out with her volunteer efforts, starting three other branches of NEST4US. Serving others had become such a way of life for her that she even celebrated her 13th birthday at a homeless shelter, bringing the party to them instead of expecting gifts for herself.

As much as she has helped others, they’ve helped her too. Not only does she get a lot of joy and personal satisfaction from her volunteer work but running NEST4US has taught her important life skills like time management, public speaking, writing, and leadership. “What it’s really given me is this opinion of putting other people first,” she says.

1.What can we infer about NEST4US from the first paragraph?

A.Its main aim is to make money. B.It offers people cheap supplies.

C.It takes in all homeless people. D.It is a charity organization.

2.What caused Venkat to set up NEST4US?

A.Her parents’ constant suggestion. B.The memory of her hard childhood.

C.Her experience of helping a hungry man. D.Volunteers’ great influence on her.

3.Why did Venkat spend her 13th birthday at a homeless shelter?

A.She held a grand party for many people.

B.She could receive many nice gifts there.

C.She got much personal satisfaction from it.

D.She saw helping others as part of her life.

4.Which of the following best describes Shreyaa Venkat?

A.Caring. B.Ambitious.

C.Humorous. D.Demanding.

高一英语阅读理解中等难度题查看答案及解析

The scientists observed that the more junk food the rats ate, the more they wanted to eat – a behavior very similar to that of rats addicted(上了瘾的) to heroin, a dangerous drug. Johnson said the experiment shows that the brain chemistry of obesity(肥胖) and drug addiction may be quite similar.

In their experiment, Johnson and his team studied the “pleasure center” of rats’ brains. The pleasure center is a complicated network of nerve cells. If the animal exercises or eats, the cells reward the animal by releasing chemicals into the body that make it feel good. And when the body feels good, the animal – or person – will want to do the behavior again.

For the experiment, Johnson fed foods like cheesecake to one group of rats. Food like this is high in calories and fat. Another group of rats got a regular diet. The rats that ate junk food started to eat more and more.

“They’re taking in twice the amount of calories as the control rats,” says Paul Kenny, one of Johnson’s colleagues.

Kenny and Johnson wanted to know what was going on in the brains of these rats. They first designed a way to deliver a small electrical charge to the rats’ brains. This electrical charge would stimulate the pleasure centers to release pleasure-causing chemicals. The rats could control how much stimulation – and how much pleasure – they received by running on a wheel. The more the rat ran, the more pleasure it received.

The rats that had been eating junk food started running more and more. This behavior suggested that the junk-food-eating rats needed more brain stimulation to feel good compared with rats on a normal diet. In other words, their pleasure centers were becoming less sensitive and the junk food didn’t make them feel good unless they ate more and more.

Experiments like this one could help scientists understand how chemicals in the brain contribute to obesity. With that information, they may be able to help people avoid obesity in the first place.

(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)

1.The scientists suggested it was actually ___________________ that made the rats feel good.

2.How did the scientist know what was happening in the brains of the junk-food-eating rats?

3.What was the purpose of the experiment mentioned in the article?

高一英语其他题中等难度题查看答案及解析

The scientists observed that the more junk food the rats ate, the more they wanted to eat – a behavior very similar to that of rats addicted(上了瘾的) to heroin, a dangerous drug. Johnson said the experiment shows that the brain chemistry of obesity(肥胖) and drug addiction may be quite similar.

In their experiment, Johnson and his team studied the “pleasure center” of rats’ brains. The pleasure center is a complicated network of nerve cells. If the animal exercises or eats, the cells reward the animal by releasing chemicals into the body that make it feel good. And when the body feels good, the animal – or person – will want to do the behavior again.

For the experiment, Johnson fed foods like cheesecake to one group of rats. Food like this is high in calories and fat. Another group of rats got a regular diet. The rats that ate junk food started to eat more and more.

“They’re taking in twice the amount of calories as the control rats,” says Paul Kenny, one of Johnson’s colleagues.

Kenny and Johnson wanted to know what was going on in the brains of these rats. They first designed a way to deliver a small electrical charge to the rats’ brains. This electrical charge would stimulate the pleasure centers to release pleasure-causing chemicals. The rats could control how much stimulation – and how much pleasure – they received by running on a wheel. The more the rat ran, the more pleasure it received.

The rats that had been eating junk food started running more and more. This behavior suggested that the junk-food-eating rats needed more brain stimulation to feel good compared with rats on a normal diet. In other words, their pleasure centers were becoming less sensitive and the junk food didn’t make them feel good unless they ate more and more.

Experiments like this one could help scientists understand how chemicals in the brain contribute to obesity. With that information, they may be able to help people avoid obesity in the first place.

(Note: Answer the questions or complete the statements in NO MORE THAN TEN WORDS.)

1. The scientists suggested it was actually ___________________ that made the rats feel good.

2. How did the scientist know what was happening in the brains of the junk-food-eating rats?

3.What was the purpose of the experiment mentioned in the article?

高一英语阅读理解中等难度题查看答案及解析

TV LISTINGS FOR WLS-TV IN CHICAGO

Sept. 5, 2011

* TVPG: Programs for children with parents' guidance

1.According to the text, Save My Planet is mainly about______.

A. science development 　　　　　　 B. international tourism

C. environmental protection　　　 D. ways to build homes

2.Which of the following content can't children watch alone?

A. Tips on lending money to family and friends.

B. The four most common parenting mistakes.

C. Commonly asked beauty questions.

D. Creating a comfortable home.

3.Which of the following programs may help you deal with money problems?

A. Advice for Life.　　　　 B. Home with Lisa Quinn.

C. Say Ahh.　　　　　　　　　　 D. Everyday Living.

4.If you are interested in the topic of keeping healthy, you can watch TV at______.

A. 5:00 AM　　　　　　 B. 6:30 AM

C. 7:00 AM　　　 D. 7:30 AM

5.If you want to know Andy's idea about cleaning, you should watch at______.

A. 4:00 AM　　　　 B. 7:00 AM　　　　 C. 4:30 AM　　　 D. 7:30 AM

高一英语阅读理解中等难度题查看答案及解析