It's 3 a.m. and you're wide awake for the sec...

It's 3 a.m. and you're wide awake for the second night in a row. You get up and come to the kitchen for some warm milk that mom says will put you to sleep. So why are you eating a bowl of ice cream with a side of cookies?

You may have heard about two hormones (荷尔蒙) that control our urge to eat: leptin and ghrelin. "The 'l' in leptin stands for lose: It controls appetite and therefore contributes to weight loss," said sleep specialist Dr. Raj Dasgupta, the associate program director of the Sleep Medicine Fellowship at Keck Medicine of USC. "The 'g' in ghrelin stands for gain: This fast-acting hormone increases hunger and leads to weight gain." When you don't have enough sleep, research shows, ghrelin levels increase while leptin lakes a nose dive. The result is an increase in hunger.

But food is food, so that doesn't explain why we want candy instead of carrots. To answer that, you have to look at another system of the body: The endocannabinoid (内源性大麻素) system. It manages everything from sleep to appetite to pain and more.

In a study published in 2016, Hanlon compared the circulating levels of 2-AG, one of the most abundant endocannabinoids,in people who got four nights of normal sleep (more than eight hours) with those in people who only got 4.5 hours. People who were sleep-deprived (缺乏睡眠) reported greater increases in hunger and appetite and had higher afternoon concentrations of 2-AG than those who slept well. They also had a rough time controlling their urges for high-calorie snacks.

All of this research is so new that science doesn’t yet know how it all fits together or what can be done about it. And that brings us to the bottom line: There's not going to be a pill any time soon for the sleep-deprived junk-food people. Instead, you'll have to do what the doctor says to reduce your improper cravings (渴望) in the middle of the night: get more sleep.

1.How does the author develop paragraph 2?

A.By giving examples. B.By making comparisons.

C.By following time order. D.By making explanations.

2.What did the study published in 2016 find?

A.Most 2-AG is produced during sleep.

B.Normal sleep makes levels of 2-AG go up.

C.High levels of 2-AG can result in strong appetite.

D.Lack of sleep decreases appetite for high-calorie food.

3.What may be a solution to the problem of eating junk-food at midnight?

A.Buying a pill from the hospital. B.Visiting the doctor at midnight.

C.Getting normal amount of sleep. D.Checking the levels of 2-AG often.

4.What can be the best title for the text?

A.Lack of sleep makes you crave junk food.

B.2-AG controls your hunger and appetite.

C.Enough sleep is important in losing weight.

D.Leptin and ghrelin together make you sleepy.

高二英语阅读理解中等难度题查看答案及解析

Does this sound familiar? It’s 3:00 am and you’re still awake and staring at the clock. You can’t sleep , and you’ve already tried all the familiar tricks – taken a warm bath , drunk a glass of heated milk ,tried counting sheep, and read a book –all with no success. If you are such a sufferer, remember you’re not alone. Experts said that one in every four Americans have trouble falling or staying asleep.

Lack of sleep can hurt your quality of life in so many ways. Short temper, impatience, poor decision-making, and mood swings are common among those with sleeping problems. Besides, relationships with family, friends, and co-workers may suffer as a result. Improper sleep can also put your safety at risk by reducing your awareness.

When you’re awake in the middle of the night, you can start to feel desperate for a way out . However, it makes sense to weigh the available treatments before choosing the one that’s right for you. Other sleep aids may seem like a quick fix, but it turns out that there are many disadvantages of these drugs. For one thing, they may require expensive, time-consuming trips to your physician. They may also be habit-forming or have unpleasant side effects like dizziness( 眩晕) dry mouth, and next-day sleepiness. Plus , they become less effective over time.

So what is the best sleep aid available on the market today? The answer is Somnapure , a product that represents nature and science coming together. This all-natural sleep aid which comes from Peak Life allows you to fall asleep quickly and remain asleep through the night . With Somnapure, you wake up feeling refreshed and energetic. Somnapure is currently giving away a 14-day trial here. Get your Somnapure trial for better, deeper sleep that you deserve.

1.From paragraph 1, we can know that sleep problems are_______.

2.The underlined words“ a quick fix”(in paragraph3)most probably means____.

3.The purpose of the passage is to _______.

4.We can infer that the passage is probably immediately followed by information about ______.

高二英语阅读理解困难题查看答案及解析

It’s normal to wake briefly during the night. 1.. But if you’re waking up during the night and having trouble falling back asleep, the following tips may help.

The key to getting back to sleep is continuing to prepare your body for sleep, so remain in bed in a relaxed position. Hard as it may be, try not to stress over the fact that you’re awake. 2..So just focus on the feelings and sensations in your body.

If you are finding it hard to fall back asleep, try a relaxation technique such as visualization, deep breathing, or meditation (沉思). 3.. Remind yourself that although they’re not a replacement for sleep, rest and relaxation still help refresh your body. Do a quiet, non-stimulating activity.

If you’ve been awake for more than 15 minutes, try getting out of bed and doing a quiet, non-stimulating activity, such as reading a book. Keep the lights dim so as not to think that it’s time to wake up.  4.. The type of light they send out is stimulating(刺激)the brain. A light snack might help relax you, but be careful not to eat so much that your body begins to expect a meal at that time of the day.

If you wake during the night feeling anxious about something, make a brief note of it on paper. 5.. You may find that it will be easier to solve it when you are fresh. Similarly, if a great idea is keeping you awake, make a note of it on paper and fall back to sleep, knowing you’ll be much more productive and creative aft-er a good night’s rest.

A. Arrange for it to take place the next day.

B. In fact, a good sleeper won’t even remember it.

C. The darker the bedroom is, the better you’ll sleep.

D. They can be done without even getting out of bed.

E. Try to make dinner time earlier in the evening.

F. Stress and anxiety encourage your body to stay awake.

G. Also avoid screens of any kind —computers, TVs, cell phones, iPads.

高二英语七选五中等难度题查看答案及解析

阅读下面短文，根据所给情节进行续写，使之构成一个完整的故事。

As the sun shone through Poltu’s window, he was already wide awake in his bed. He got up and ran straight to his study table. There, in an empty jam bottle, was the treasure. A colorful little butterfly. How difficult it had been to catch it in the backyard of his house. It had kept flying away from his grasp. But catch it he did. And now it was going to be part of his biology project in school.

The biology project required Poltu to submit the study of a living creature every month. Most of his classmates drew diagrams from their books as part of this exercise. But Poltu was going to do something different. He was going to present a live creature—this butterfly.

Poltu loved the different colours on the wings of the butterfly. Red, green and blue. How beautiful it looked when it fluttered the wings. Poltu had made a few holes on the cap of the bottle to let air pass through, and added tender leaves for the butterfly to nibble (小口的咬) on. He might have trapped the creature, but he cared for it.

Excited about displaying his exhibit to the biology teacher, Poltu dressed hurriedly, and left for school. His school was walking distance from his house. He took a short cut and when he arrived, the gate wasn’t wholly open yet.

He walked straight into his class, opened the bench window and placed the bottle on the windowsill. The golden rays of the sun streamed through the glass, on the delicate wings of the butterfly. Poltu’s butterfly looked simply gorgeous. In a few minutes, the area was full of boys, even from other classes, gazing fondly at it.

That day’s biology class was the most interesting in a long time. Pleased with Poltu’s initiative (主动性), the teacher asked everyone in the class to thank him as he made it possible for them to study a butterfly so closely. Poltu felt like a star for being treated like royalty.

On the way home, whatever small creature Poltu came across, he felt like putting into the bottle. But he checked himself as he wanted to give breathing space to his butterfly.

注意：

1. 所续写短文的词数应为150左右；

2. 至少使用5个短文中标有下划线的关键词语；

3. 续写部分分为两段，每段的开头语已为你写好；

4. 续写完成后，请用下划线标出你所使用的关键词语。

Paragraph 1:

However, when he returned home, he found the butter fly not moving. ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Paragraph 2:

He ran outside, holding the bottle tightly in his hand.__________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

高二英语读后续写困难题查看答案及解析

. It was the fact _______his father was ill in hospital_________ worried him and kept him awake for a whole night .

A. which ; that       B. which ; which       C. that ; which           D. that ; that

高二英语单项填空简单题查看答案及解析

English nowadays is widely used in science, business, the media and popular culture. For example, 80% of e-mails on the internet are in English. But where will English be at the end of the 21^st century?

One view is that English is going to become even more important as a global language, being most widely used in trade and media while some other languages will become less important or just disappear. Another view is that English is already breaking up into several separate languages. There are already dictionaries of the “New Englishes”, such as Australian English, full of words that a British English speaker would not recognize.

Hopefully, neither of these things will happen. Although different varieties of English will continue to develop around the world, standard English will survive for international       communication. However, it is impossible for one language to totally control the world. Already, other languages are fighting back against the control of English on the net. Governments around the world are also starting to protect smaller languages and recognize the importance of keeping a variety of cultures and languages. English will probably stay in control for a long time, but it certainly won’t become the only language in the world.

1. According to the situation, how many people do you think speak English now?

A. 200 million     B. 300 million    C. 500 million    D. a billion

2.At present, what is the most important language in the world?

A. Chinese        B. English       C. French        D. German

3.What is the best title of the passage?

A. The Change of English           B. Different Varieties of English

C. The Future of English            D. The Cause of English Change

高二英语阅读理解简单题查看答案及解析

It's Friday morning in the year 2025, and you're running late. You got distracted watching the music video that as playing in the corner of your bathroom mirror while you were brushing your teeth. How will you get to your office at Mega Giga Industries on time?

A quick check of your Internet-connected refrigerator magnet tells you your train which travels at speeds up to 250 miles an hour as it electromagnetically(电磁的) hovers above its guide track is a bit behind schedule, too. So you decide to drive your environmentally-friendly hydrogen(氢气) fuel cell car instead or rather let your car drive you. It's programmed to know the way, and it will get you there without speeding, getting lost, or crashing.

Sealing into your office chair, which changes color to match what you're wearing, you pick up yesterday morning's newspaper. Printed on reusable electronic paper, it instantly rewrites itself with today's headlines. Now it's time for your big meeting. Uh-oh!

You've left your handwritten notes at home. No problem! The digital ink pen you used has stored an electronic copy of what you wrote.

Your wrist(手腕) watch videophone suddenly rings. Your best friend's face pops up on the organic light-emitting diode (二极管) screen asking what you're doing this weekend. Will you slap on your 3D contact lenses and play virtual soccer with the US Olympic team? No, no. Your friend says, so you have to take the new nanotube elevator (made of microscopic fibers many times stronger than steel) 60,000 miles into space.

Could this scene really take place in just a couple of decades? The researchers who are currently developing all this stuff think so. These things may be as common in 20 years as cell phones and DVD players are today.

1.The author wrote the passage to ______.

A. show picture the life of the future

B. introduce some high technology

C. tell us the future life is fantastic

D. tell us the future life is convenient

2.What is the meaning of the underlined sentence?

A. The car is very good.

B. The driver of the car is very clever.

C. The car is controlled by yourself.

D. The car can run by itself without your control.

3.From the passage we know that ______.

A. you can read the newspaper on TV

B. the newspaper is printed on the used paper

C. the newspaper can update by itself

D. the newspaper is put in the changeable chair

4.From the last paragraph we can conclude that ______.

A. all the imagination can come true now

B. it is impossible to see the scene

C. it will take us no more than ten years to realize the dream

D. the researchers believe the scene will take place in some years

高二英语阅读理解中等难度题查看答案及解析

Elizabeth’s Second!

In 60 years, the Queen has never put a foot wrong in public. And for the last 24 of them, it turns out she’s had a secret weapon — the nice Ella Slack. The former BBC manager has, unknown to anyone except a handful of key advisers, spent the last quarter of a century acting as the Queen’s official stand-in at rehearsals (排练) for royal events. The 69-year-old has never accepted a penny for her royal service, considering it “a pleasure and an honour” to ensure that everything runs smoothly for the Queen. “How many people in the world have had a chance to sit in a royal landau (马车) or walk onto the dais (讲台) at Windsor Castle even before the Queen has done so?” she said.

While Miss Slack may not resemble the Queen facially, she has a similar figure to the Queen, standing just 5 foot. The Queen is 5 foot 2 inch. She began her remarkable role in 1988, when she was working as manager of the BBC’s sports and events department. A producer asked her if she could stand in for the Queen to check camera angles at a rehearsal — and her second career was born.

Since then, from the State Opening of Parliament (议会) to the 50th anniversary of Victory day, wherever the Queen is on duty Miss Slack is likely to have been there first. She has perfected her own version of the Queen’s clothes, including a black patent handbag she bought in a charity shop for ￡1, and even styles her hair like the Queen.

1.What’s the Queen’s secret weapon?

A. She often meets people in public.

B. She actively attends social activities.

C. She has a nice lady to act as herself.

D. She and Miss Slack have a lot in common.

2.Miss Slack’s words in Paragraph 1 indicate that ___________.

A. she thinks the job honorable and worthy

B. she thinks she can do the job better

C. she thinks frequently of her role

D. she is determined to carry the job on

3.How did Miss Slack get the job?

A. The Queen invited her to do so.

B. The BBC appointed her to finish the job.

C. She was invited to have an accidental try.

D. The advisers offered her the chance.

4.In which section of a newspaper may you find the passage?

A. Education.　　 　 B. Entertainment.

C. Sports.　　　　　　 D. Health.

高二英语阅读理解中等难度题查看答案及解析

Elizabeth’s Second!

In 60 years, the Queen has never put a foot wrong in public. And for the last 24 of them, it turns out she’s had a secret weapon — the nice Ella Slack. The former BBC manager has, unknown to anyone except a handful of key advisers, spent the last quarter of a century acting as the Queen’s official stand-in at rehearsals (排练) for royal events. The 69-year-old has never accepted a penny for her royal service, considering it “a pleasure and an honour” to ensure that everything runs smoothly for the Queen. “How many people in the world have had a chance to sit in a royal landau (马车) or walk onto the dais (讲台) at Windsor Castle even before the Queen has done so?” she said.

While Miss Slack may not resemble the Queen facially, she has a similar figure to the Queen, standing just 5 foot. The Queen is 5 foot 2 inch. She began her remarkable role in 1988, when she was working as manager of the BBC’s sports and events department. A producer asked her if she could stand in for the Queen to check camera angles at a rehearsal — and her second career was born.

Since then, from the State Opening of Parliament (议会) to the 50th anniversary of Victory day, wherever the Queen is on duty Miss Slack is likely to have been there first. She has perfected her own version of the Queen’s clothes, including a black patent handbag she bought in a charity shop for ￡1, and even styles her hair like the Queen.

1.What’s the Queen’s secret weapon?

A. She often meets people in public.

B. She actively attends social activities.

C. She has a nice lady to act as herself.

D. She and Miss Slack have a lot in common.

2.Miss Slack’s words in Paragraph 1 indicate that ___________.

A. she thinks the job honorable and worthy

B. she thinks she can do the job better

C. she thinks frequently of her role

D. she is determined to carry the job on

3.How did Miss Slack get the job?

A. The Queen invited her to do so.

B. The BBC appointed her to finish the job.

C. She was invited to have an accidental try.

D. The advisers offered her the chance.

4.In which section of a newspaper may you find the passage?

A. Education.　　 　 B. Entertainment.

C. Sports.　　　　　　 D. Health.

高二英语阅读理解中等难度题查看答案及解析

It’s cold in here. We must have the fire　　　day and night.

A. burn  B. burns  C. burnt  D. burning

高二英语单项填空中等难度题查看答案及解析