Mars( 火星) appears to be flowing with small streams of salty water, at least in the summer, scientists reported Monday. "It suggests that. it would be possible for there to be life today on Mars," NASA's science mission chief, John Grunsfeld, said at a news conference on September 28, 2015.
The streams are about 12 to 15 feet wide and 300 feet or more long, scientists said. "What we're dealing with is wet soil. thin layers of wet soil, not standing water," said Aifred McEwen of the University of Arizona at Tueson ! the principal scientist for the Mars Reconnaissance Orbiter's high-resolution imaging experiment.
Because liquid water is essential to life, the findings could have major implications for the possibility of Martian life. The researchers said further exploration is needed to determine whether microscopic life exists on the planet.
The presence of liquid water could also make life easier for astronauts visiting or living on Mars. Water could be used for drinking and for creating oxygen and rocket fuel. NASA's goal is to send humans there in the 2030s.
The evidence of flowing water consists largely of dark, narrow streaks(条痕) on the surface that tend to appear and grow during the warmest Martian months and fade the rest of the year.
Mars is extremely cold even in summer, and the streaks are in places where the temperature is as low as minus 10 degrees Fahrenheit. But salt can lower the freezing point of water and melt ice.
The source(源头) of the water is a mystery. Scientists noted it could be melting ice. It could be an underground aquifer, which is rock or sand that can hold water. It is possibly water vapor from the thin Martian atmosphere, Or it may be a combination.
Michael Meyer, lead scientist for NASA's Mars exploration program, said the only definitive way for now to determine whether there's life on Mars is to collect rocks and soil for analysis on Earth - something a U. S. lander set for lift-off in 2020 will do.
1.What would be the best title for the text?
A Streams of Water Spotted on Mars
B. Astronauts will Land on Mars
C. NASA's Mars Exploration Program
D. A Breakthrough in the Exploration of Mars
2.According to John Grunsfeld, there seems to be on Mars.
A. salty water
B. standing water
C. rocket fuel
D. human beings
3.Scientists are uncertain about the of the water on Mars.
A. state
B. source
C. temperature
D. taste
4.What matters to the existence of liquid water on Mars?
A. The distance from the sun.
B. The favorable climate.
C. The gravity of the earth
D．The salt in it．
七星图书口算速算天天练系列答案
初中学业考试导与练系列答案科目：高中英语 来源：2015-2016学年江西赣州十三县市高一上期中联考英语试卷（解析版） 题型：阅读理解
Are people less happy or more happy the older they get ? A study found that people generally become happier and experience less worry after age 50. In fact, it found that by the age of 85, people are happier with their life than they were at 18.
The finding came from a Gallup survey of more than 340,000 adults in the United States in 2008. At that time, the people were between the age of 18 an 85.
Arthur Stone in the Department of Psychiatry and Behavioral Science at Stony Brook University in New York led the study. His team found that levels of stress were highest among adults between the ages of 22 and 25. Stress levels dropped sharply after people reached their fifties.
Happiness was highest among the youngest adults and those in their early seventies. But the people least likely to report feeling negative emotions(消极情绪) were those in their seventies and eighties. The survey also found that men and women had similar emotional patterns as they grow older. However, women at all ages reported more sadness, stress and worry than men did.
The researchers also considered possible influences like having young children, being unemployed or being single. But they found that influences like these did not affect the levels of happiness and well-being related to age.
So why would happiness increase with age ? One theory is that, as people get older, they become more thankful for what they have and have better control of their emotions. They also spend less time thinking about bad experiences.
The original(最初的) goal of the study was to confirm the popular belief that aging is connected with increased sleep problems. The survey did find an increase during middle age, especially in women. But except for that , people reported that they felt their sleep quality improved as they got older.
1.Old people may be happier probably because _________
A. their children have grown up.
B. they don’t have to work every day.
C. they can do whatever they like best.
D. they are most likely satisfied with life.
2.According to the survey, when will adults feel most stressful?
A. In their twenties. B. In their fifties.
C. In their seventies. D. In their eighties.
3.What may make Arthur Stone a bit surprised?
A. Women usually live longer than men.
B. Middle-age men mostly are very rich.
C. Old people usually have a better sleep.
D. Most of old people can’t sleep well at night.
4.Which of the following may be the topic of this passage ?
A. The difference between men and women.
B. Old people’s feeling of happiness.
C. The young people and the old people.
D. The connection of sleep and happiness.
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科目：高中英语 来源：2014-2015学年北京市东城区普通校高三11月联考英语试卷（解析版） 题型：书面表达
假如你是学生李明，上周末和祖母聊天，她想去上海看望朋友。你帮她安排去上海的行程，下列四幅图按顺序叙述了你从准备到送行的全过程。
1．写一篇英文周记。
2．词数不少于60。
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科目：高中英语 来源：2016届浙江瑞安市高三上学期第一次四校联考英语试卷（解析版） 题型：阅读理解
"Ok," I said to my daughter as she bent over her afternoon bowl of rice. "What's going on with you and your friend J.?" J. is the leader of a group of third-graders at her camp—a position Lucy herself occupied the previous summer. Now she's the one on the outs, and every day at snack time, she tells me all about it, while I offer up the unhelpful advice all summer long.
"She's fond of giving orders," Lucy complained. "She's fat," Lucy mumbled（含糊地说）to the bowl "We are going upstairs," I said, my voice cold, "We are going to discuss this." And up we went.
I'd spent the nine years since her birth getting ready for this day, the day we'd have to have
the conversation about this horrible word. I knew exactly what to say to the girl on the receiving end of the teasing（嘲笑），but in all of my imaginings, it never once occurred to me that my daughter would be the one who used the F word一Fat.
My daughter sat on her bed, and I sat beside her. “How would you feel if someone made fun of you for something that wasn't your fault?” I began. “She could stop eating so much,” Lucy mumbled, mouthing the simple advice a thousand doctors and well-meaning friends and relatives have given overweight women for years．
"It's not always that easy,” I said. “Everyone's different in terms of how they treat food”
Lucy looked at me, waiting for me to go on. I opened my mouth, then closed it. Should I tell her
that, in teasing a woman's weight, she's joined the long, proud tradition of critics who go after any woman with whom they disagree by starting with "you're ugly" and ending with “no man would want you and there must be something wrong with any man who does"？Should I tell her I didn't cry when someone posted my picture and commented, “I'm sorry, but aren't authors who write books marketed to young women supposed to be pretty?”
Does she need to know, now, that life isn't fair? I feel her eyes on me，waiting for an answer I don't have. Words are my tools．Stories are my job．It's possible she'll remember what I say forever, and I have no idea what to say.
So I tell her the only thing I can come up with that is absolutely true．I say to my daughter,
“I love you, and there is nothing you could ever do to make me not love you. But I'm disappointed in you right now. There are plenty of reasons for not liking someone. What she looks like isn't one of them.”
Lucy nods, tears on her cheeks.“I won't say that again,”she tells me，and I pull her close,
pressing my nose against her hair. We are both quiet, and I don't know if I have said the right thing. So as we sit there together, shoulder to shoulder, I pray for her to be smart．I pray for her to be strong. I pray for her to find friends，work she loves, a partner who loves her, and for the world not to deprive（剥夺）her of the things that make her who she is，for her life to be easy, and for her to have the strength to handle it when it's not. And still, always，I pray that she will never struggle as I've struggled, that weight will never be her cross to bear. She may not be able to use the word in our home, but I can use it in my head. I pray that she will never get fat．
1.The underlined sentence in Paragraph 1 indicates that Lucy＿＿＿.
A. has turned against her friend J.
B. often makes fun of her friend J.
C. gets along well with her friend J.
D. has begun to compete with her friend J.
2.Why does the author want to discuss with Lucy?
A. Because she is really shocked at Lucy's rudeness．
B. Because she wants to offer some other helpful advice.
C. Because she has prepared the conversation for nine years.
D. Because she decides to tell Lucy a similar story of her own．
3.What does the author want to tell her daughter?
A. It is not easy to take the doctors' advice to eat less．
B. People shouldn't complain because life is unfair.
C. People shouldn't be blamed for their appearance.
D. She herself was once一laughed at for her appearance.
4.It can be inferred from the passage that ___ .
A. the author is a fat but good-looking woman
B. the author earns a living by writing stories
C. the author will stop loving her daughter for what she said
D. the author's daughter agreed with her from.the very beginning
5.We can learn from the last paragraph that ．
A. Lucy is deeply moved by her mother's prayer
B. a mother's prayer will shape her daughter's attitude towards life
C. the author allows her daughter to use the F word in her head
D. the author hopes her daughter will never have weight trouble
6.The author's attitude towards her daughter can be best described as ．
A. satisfied and friendly
B. indifferent but patient
C. loving but strict
D. unsatisfied and angry
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科目：高中英语 来源：2016届江西宜春奉新县第一中学高三上第二次月考英语试卷（解析版） 题型：其他题
根据短文内容，从短文后的选项中选出能填入空白处的最佳选项，并在答题卡上将该项涂黑。选项中有两项为多余选项。
Facing the Enemies Within
We are not born with courage, but neither are we born with fear. Fears, even the most basic ones, can totally destroy our ambitions. Fear can destroy fortunes. Fear can destroy relationships. Fear, if left unchecked, can destroy our lives. Fear is one of the many enemies living inside us.
___1.__
The first enemy we face is indecision(优柔寡断). Indecision is the thief of opportunity. _2.__ Take a sword to this enemy.
The second enemy inside is doubt. __3._ But you also can’t let doubt take over. Many people doubt the past, doubt the future, doubt each other, doubt the government, doubt the possibilities and doubt the opportunities. Worst of all, they doubt themselves. I’m telling you, doubt will destroy your life and your chances of success. It will empty both your bank account and your heart. _4._
Do battle with the enemy. Do battle with your fears. __5.__ Be courageous in your life and in your pursuit of the things you want and the person you want to become.
A. Sure, there’s room for healthy doubt. You can’t believe everything
B. Build your courage to fight what’s holding you back, what’s keeping you from your goals and dreams.
C. Let me tell you about two of the other enemies we face from within.
D. Below are the ways which might be useful for us to overcome our fears.
E. Doubt is an enemy. Go after it. Get rid of it.
F. It will steal your chances for a better future.
G. Some people doubt everything.
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科目：高中英语 来源：2016届北京海淀区高三上学期期中考试英语试卷（解析版） 题型：书面表达
假设你是红星中学高三学生李华。上个周末，为了给校的外籍学生营造学习中国文化的
氛围，你们班布置了一间“中国小屋”，做为他们日常学习和活动的教室。请根据以下四幅
图的先后顺序，介绍这一过程，并向校刊“英语园地”投稿。
注意：词数不少于60。
提示词：中国小屋 Chamber of China
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科目：高中英语 来源：2015-2016学年江苏泰兴市高二上期中英语试卷（解析版） 题型：阅读理解
Dogs Don't Tell Jokes - By Louis Sachar
Twelve-year-old Gary Boone knows he was born to be a comedian. He never stops joking, regardless of the fact that nobody laughs much and his classmates think he is stupid. Therefore he had no real friends at school. Due to being laughed at by his classmates, Gary Boone thought winning the school talent show would be his dream of proving himself to be a real comedian, but on the big night his dream went wrong with funny results. | Winners Never Quit - By Mia Hamm
Mia Hamm, American soccer champion, tells a true-to-life inspiring story of learning that winning and losing aren't as important as being part of a team. More than anyone, soccer superstar Mia Hamm knows the value of teamwork. She shares this lesson, paired with energetic pictures by Carol Thompson, and this story is perfect for soccer kids and their soccer moms. |
Shack let on s Incredible Voyage - By Alfred Lansing
The astonishing adventure of polar explorer Ernest Shackleton's survival for over a year on the ice-bound Antarctic seas, as Time t magazine put it, "defined heroism". To write the authoritative story, Lansing consulted with ten of the surviving members and gained access to diaries and personal accounts by eight others. The book has a first-hand account, expanded with maps and illustrations especially for this edition. | The Alchemist - By Paulo Coelho
The Alchemist, by Paulo Coelho, continues to change the lives of its readers forever. It tells the magical story of Santiago, an Andulusian shepherd-boy (牧童) who desires to travel in search of treasure. The story of the treasures Santiago finds along the way teaches us about the essential wisdom of listening to our hearts and above all, following our dreams. |
1.From Shackletoris Incredible Voyage, we know the main character ______.
A. is a writer for Time magazine
B. is a survival of one polar exploration
C. has left a lot of diaries and accounts
D. has formed a close friendship with Alfred Lansing
2.If you want to know more about teamwork, you can read ______.
A. Dogs Don't Tell Jokes B. Shackletoris Incredible Voyage
C. Winners Never Quit D. The Alchemist
3.What do we know about The Alchemist?
A. It has an everlasting influence on its readers.
B. It gives people magical power over their dreams.
C. It tells a story of how to find treasures.
D. It is mainly about the wisdom of listening to others.
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科目：高中英语 来源：2014-2015学年湖南省高三10月第二次月考英语试卷（解析版） 题型：其他题
Directions: Read the following passage. Fill in the numbered blanks by using the information from the passage.
Write NO MORE THAN THREE WORDS for each answer.
Every person needs energy to go about the day and continue to function correctly. To get this energy, you eat, and your body changes the food into the nutrients and energy you need to survive. Your metabolism (新陈代谢) is directly related to how quickly and efficiently your body creates this energy, and if it takes too long, the food gets stored as fat. A slow metabolism will leave you with less energy and more weight than you probably desire.
Your basal metabolic rate (基础代谢率) is the amount of energy your body consumes while you're resting. When people say they have a slow metabolism, they mean they have a slow basal metabolic rate. Increasing this number is possible through exercise and muscle building.
According to Metabolism-Advice. com, as your age, your basal metabolic rate will lower as your body begins to deteriorate (衰退). At the age of 30, your body will stop producing the high levels of growth hormone it previously produces. Your body senses that it's done growing at 30, so it uses the resources elsewhere. Unfortunately, that means that your muscle will deteriorate more rapidly than before. While you can’t block age's effects or your metabolism, you can fight against it with regular exercise that builds muscle.
Although muscle deteriorates quicker with age, a lack of exercise will hurt your metabolism at any age. The muscle developed during exercise is vital to maintaining a healthy body with a normal basal metabolic rate. Therefore, while cardiovascular(心血管的)exercise will burn fat during the work out, building muscle will wisely allow your body to use more calories to give you healthy energy instead of stored fat.
Another large factor that determines your basal metabolic rate is your eating habits. Metabolism-Advice. com suggests eating small meals every two to three hours. This will make sure that your metabolism is constantly working throughout your day. Another large factor is how healthily you eat. Taking in the required calories for your amount of daily activity will help keep your metabolism from lowering, but taking in too many calories may lead to fat.
Title: About slow metabolism
I . Definitions
●metabolism—how quickly and efficiently your body creates the energy for it
to function correctly
●basal metabolic rate—the amount of 1. by your body when you're resting
●slow metabolism-slow basal metabolic rate
II. 2. of slow metabolism
●giving a person less energy
●getting a person to 3._______________
III.4. of slow metabolism
●deterioration of your body 5. exercise
●unhealthy 6..
●unhealthy diet
IV. 7. to slow metabolism
●8..____________________ to build muscle
●eating more often but 9.____________________
●10._________________ your body requires for the daily activities
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科目：高中英语 来源：2016届辽宁省大连市高三10月月考英语试卷（解析版） 题型：书面表达
假定你是李华，是将来北京参加冬令营活动的英国高中生Tom的接待家庭。请根据以下提示给Tom写信电子邮件，告知相关事宜。
内容要点：1.机场接机；2.单独卧室, 可以上网；3.陪同浏览北京。
注意：1. 词数不少于100；
2. 可适当增加细节，以使行文连贯；
3. 开头和结尾已给出，不计入总词数。
Dear Tom,
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_____________________________________________________________________
_____________________________________________________________________
I’m looking forward to your early reply.
Yours sincerely,
Li Hua
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