Try this: For an entire day, forget about the clock. Eat when you’re hungry and sleep when you’re tired. What do you think will happen?
You may be surprised to find that your day is much like most other days. You’ll probably get hungry when you normally eat and tired when you normally sleep. Even though you don’t know what time it is, your body does. These patterns of daily life are called circadian rhythms(生理节奏), and they are more than just habits. Inside our bodies are several clocklike systems that follow a roughly 24-hour cycle. Throughout the day and night, our inner clocks direct changes in temperature, body chemicals, hunger, sleepiness and more.
Everyone’s rhythms are different, which is why you might like to stay up late while your sister always wants to go to bed early. But on the whole, everyone is programmed to feel tired at night and energetic during the day. Learning about our body clocks may help scientists understand why problems arise when we act out of step with our circadian rhythms. For example, traveling across time zones can make people wake up in the middle of the night. Regularly staying up late can make kids do worse in tests.
“There is a growing sense that when we eat and when we sleep are important parts of how healthy we are,” says Steven Shea, director of the Sleep Disorders Program at Brigham and Women’s Hospital in Boston.
One way to learn about how our body clocks tick is to mess them up and see what happens. That’s what neurologist(神经病学家)Frank Scheer and his workmates did in a recent study. Staying up night after night, their studies suggest, could make kids extra hungry and more likely to gain weight. And regularly sleeping too little, Scheer says, may be one cause of the recent increase in childhood obesity.
1.What will happen if you forget about the clock according to the passage?
A.You will feel upset.
B.You will behave normally.
C.Your body will not know what time it is.
D.You will probably get hungry more easily.
2.Mike feels energetic at 12 midnight while Tom feels sleepy. What advice would be given by the writer?
A.Both should see a doctor. B.Tom should see a doctor.
C.Both should take it easy. D.Mike should have a watch.
3.How do Frank Scheer and his workmates study body clocks?
A.By seeing what happens when they are messed up.
B.By asking questions and collecting answers.
C.By studying people traveling across time zones.
D.By programming people with man-made clocks.
4.What will the writer most probably talk about next?
A.Other examples of what people will do when their body clocks go wrong.
B.Some effective medicines that can keep people from putting on weight.
C.The importance of eating healthy food.
D.What circadian rhythms are and how they work.
高二英语阅读选择困难题
Try this: For an entire day, forget about the clock. Eat when you’re hungry and sleep when you’re tired. What do you think will happen?
You may be surprised to find that your day is much like most other days. You’ll probably get hungry when you normally eat and tired when you normally sleep. Even though you don’t know what time it is, your body does.
These patterns of daily life are called circadian rhythms(生理节奏), and they are more than just habits. Inside our bodies are several clocklike systems that follow a roughly 24-hour cycle. Throughout the day and night, our inner clocks direct changes in temperature, body chemicals, hunger, sleepiness and more.
Everyone’s rhythms are different, which is why you might like to stay up late while your sister always wants to go to bed early. But on the whole, everyone is programmed to fell tired at night and energetic during the day.
Learning about our body clocks may help scientists understand why problems arise when we act out of step with our circadian rhythms. For example, traveling across time zones can make people wake up in the middle of the night. Regularly staying up late can make kids do worse in tests.
“There is a growing sense that when we eat and when we sleep are important parts of how healthy we are,” says Steven Shea, director of the Sleep Disorders Program at Brigham and Women’s Hospital in Boston.
One way to learn about how our body clocks tick is to mess them up and see what happens. That’s what neurologist(神经病学家)Frank Scheer and his workmates did in a recent study.
Staying up night after night, their studies suggest, could make kids extra hungry and more likely to gain weight. And regularly sleeping too little, Scheer says, may be one cause of the recent increase in childhood obesity.
1.What will happen if you forget about the clock according to the passage?
A. You will feel upset.
B. You will behave normally.
C. Your body will not know what time it is.
D. You will probably get hungry more easily.
2.Mike feels energetic at 12 midnight while Tom feels sleepy. What advice would be given by the writer?
A. Both should see a doctor..
B. Tom should see a doctor.
C. Both should take it easy.
D. Mike should have a watch.
3.How do Frank Scheer and his workmates study body clocks?
A. By seeing what happens when they are messed up.
B. By asking questions and collecting answers.
C. By studying people traveling across time zones.
D. By programming people with man-made clocks.
4.What will the writer most probably talk about next?
A. Other examples of what people will do when their body clocks go wrong.
B. Medicines that can keep people from putting on weight.
C. Why it is important to have a normal body clock.
D. What circadian rhythms are.
高二英语阅读理解困难题查看答案及解析
I shall never forget the day when the earthquake took place. The time was about 5 o’clock in the afternoon and I was driving along the road to take my daughter from school. Our plan was to go swimming together. I finished my work at 4 o’clock and then went to the post office. Then I stopped off at a shop in order to get some fresh fruit. We’d like to have some fruit after swimming.
I was driving along a high road on my way to my daughter’s school. Over my road was another road, which was built like a bridge for cars coming to the other way. I was hungry so I put the bag of apples in the seat beside me and started to eat one.
Suddenly I saw the cars in front of me start to move from side to side. Then my car started to shake! I didn't know what was happening. Perhaps something had gone wrong with my car. I drove more slowly and then I stopped the car and at the same moment the road fell onto the cars in front of me.
I found myself in the dark. I couldn't move. The bottom parts of both of my legs and my feet were hurting badly and I couldn't move them. All around me was quiet. But above me I could hear shouts and a lot of noise. Then I memorized what had happened. I had been in an earthquake.
For about two hours nobody came. Luckily I could reach the bag of apples, so at least I had plenty to eat. Then I heard people climbing towards me. A team of people had come to see if anyone was under the broken road. I called out, “I’m here!” when I heard a shout. Soon a stranger climbed to the side of the road near my car. “How are you doing?” he asked. “Not too bad, ”I said. “But my feet and legs feel as if they’re broken.”“We’ll have you out of there just as soon as we can.” They didn't get me out until the next morning. I had been in my car for fourteen hours.
1.When the earthquake took place, the writer was ________.
A.on his way to the post office | B.stopping off at a shop |
C.doing some shopping | D.under a road built like a bridge |
2.The writer’s car began to move from side to side because________.
A.there was something wrong with his car | B.he ate apples as he drove |
C.an earthquake happened | D.he drove too fast |
3.Which of the following is TRUE according to the passage?
A.When the earthquake happened, the writer was with his daughter together. |
B.The writer’s legs and feet were badly wounded in the earthquake. |
C.The writer was saved as soon as the stranger climbed up the road. |
D.The writer was so frightened that he forgot everything that happened around him. |
4.Which of the following shows the right order of what happened to the writer?
a. A stranger climbed to the side of road near his car and asked how he was doing.
b. The writer finished his work.
c. He felt his car shaking on his way to his daughter’s school.
d. He bought some fresh fruit in a shop.
e. He was saved the next morning.
f. The writer found himself in the dark.
g. He went to the post office.
A.b,g,d,c,f,a,e | B.b,d,c,g,f,a,e |
C.d,b,c,f,g,a,e | D.c,a,f,g,b,d,e |
5.From the passage we’re sure that the writer was ________.
A.a teacher of a school | B.a manager of a shop |
C.a father of a girl | D.a worker of a post office |
高二英语阅读理解中等难度题查看答案及解析
This day marks the rising of a new food startup, the first company to be financed entirely by the crowd, and of it every business thus relies on thousands of customers to grow. Lisa, 25, its main founder and CEO, believes it will be a path that will become increasingly popular, and ultimately will produce more thriving(繁荣的)businesses from the scratch.
“In the food industry, no venture capital (VC, 风险投资) will even look at you until you’ve hit a million in sales. As a fresh hand in business, unless you’re independently wealthy, you will likely need to raise some money before then,” Lisa complained. So few businesses approached VC firms at the beginning. It was no exception with her. Thus, she turned to a new financing tool at hand, crowdfunding, to raise money from the crowd who’d like to take a bet on her company.
But for a company, it didn’t make sense to seek investments when all they had was an idea and a few months of consumer testing data. The food market is extremely competitive. No investor would put money behind a totally unproven new super food product founded by a bunch of twenty-somethings. “But we had a story. And crowds love stories.” Lisa said delightedly. So she put together an online crowdfunding campaign, explaining how she began working with this amazingly nutritious plant in the Peace Corps and then started selling it in the U.S. to support the poor in the West Africa.
On the online platform where they were to raise the money, a friend convinced them to change their goal from $20,000 to $50,000. Lisa stayed up all night worrying they wouldn’t hit it. But they reached $24,000 in 24 hours and ended their funding with $53,000. Seeing the number, Lisa said, “Thank you! To my crowd and for your belief!”
1.Why couldn’t Lisa get investments in a traditional way?
A. She lacked confidence in business.
B. Her food company was in poor condition.
C. VC demanded too much in choosing partners.
D. Consumers were not satisfied with her new products.
2.According to the passage, crowdfunding ________.
A. ensures the investors a good return
B. aims to help badly managed companies
C. attracts more people to become investors
D. helps startups deal with money shortages
3.The underlined word “twenty-somethings” refers to ________.
A. twenty impractical ideas B. young people over twenty
C. twenty inexperienced partners D. a company with twenty branches
4.Which of the following best explains Lisa’s success?
A. Great minds think alike. B. Honesty is the best policy.
C. Many hands make light work. D. A friend in need is a friend indeed.
高二英语阅读理解中等难度题查看答案及解析
----Did you forget about my birthday?
---- _____ I’ve booked a table at Jinghao restaurant for this evening.
A.What a pity! | B.Thank goodness! | C.How come? | D.You rascal. |
高二英语单项填空中等难度题查看答案及解析
When parents celebrate an anniversary, it’s not just a celebration for the parents but for the entire family. There are many types of wedding anniversary gifts. These gifts reflect a lot of thought and effort. Choosing a gift for parents that involves the whole family makes the event more special for them.
Budget
1. Parents usually know the financial conditions of their children. Overspending can make parents uncomfortable and worried.
Considerations
An anniversary gift for parents should have two characteristics: customized (订制的), and something they can use together. 2. The gift is celebrating their time spent together, so it has to be something they both will enjoy.
Family celebration
One of the biggest achievements of parents is raising children. So some children decide to buy an anniversary gift that involves the entire family such as a special family vacation. ________3.
A party as a gift
4. If it is a milestone anniversary such as a 25th or 50th wedding anniversary, some children choose to hold a party. The guest list includes all family members who have been close to them over the years.
Family-themed gifts
One choice is a family photo taken by a professional or even a painting created by a professional artist using a family photo as the image to be painted. ________5. If the parents don’t have a DVD player, the player can be included as part of the gift.
A. Sometimes gifts don’t have to be objects bought with money.
B. Brothers and sisters can share the cost of the party.
C. It is not a good idea to choose a gift that only looks good.
D. So the gift should be one selected specially for parents.
E. Children shouldn’t spend too much money on the gift.
F. This way, the family can be together to celebrate the anniversary.
G. Another nice gift is making a DVD with old videotapes of family events.
高二英语信息匹配中等难度题查看答案及解析
“Eat local. ” It’s one way to reduce human effect on the planet. Eating local means to try to buy and consume foods that are grown in places close to home. However, most of the food sold at supermarkets is not locally grown or produced. Trucks and planes deliver these foods from hundreds or thousands of miles away. During the transportation, greenhouse(温室)gases are produced, causing global warming. So the shorter the distance your foods must travel, the less the harm is done to the environment.
But how do you get local food if you live in a large city, hundreds of miles away from farms?Environmental health scientist Dickson Despommier and his students came up with the idea of a “vertical(垂直的) farm”.
A vertical farm is a glass-walled structure that could be built as tall as a skyscraper(摩天大楼). Since the garden is built upwards, rather than outwards, it requires much less space than an ordinary farm. The world is quickly running out of room for ordinary farming. Vertical farms could be a key to this situation. Despommier imagines a 30-story building with a greenhouse on every floor. The walls of the building would be clear, to allow crops to get as much sunlight as possible. Depending on a city’s water resources, Despommier thinks hydroponic(水培的) farming is another method for the vertical farm which needs no soil to grow plants.
Despommier says the hydroponic greenhouses would use a system that would use a city’s waste water and fill it with nutritions to make the crops grow. If this method works, it would provide food to a city and save millions of tons of water.
The idea of a vertical farm has attracted the attention of government officials around the world. Scott Stringer, a government official from New York City, thinks the city is suitable for the vertical farming. “Obviously we don’t have much land left for us,” Stringer said. “But the sky is the limit in Manhattan. ”
Despommier admits that there is still a lot of work to do to make vertical farms a reality. “But I think vertical farming is an idea that can work in a big way,” he says.
1.Why are people advised to eat local?
A. Because it means convenience(方便) to people.
B. Because it can help people save a lot of money.
C. Because local food has more nutrition.
D. Because it is environmentally friendly.
2.Which is one of the vertical farm’s benefits when compared with ordinary farming?
A. It produces healthier food.
B. It does less harm to the cities.
C. It needs less space of the city.
D. It requires less transport costs.
3.By saying “the sky is the limit in Manhattan”, Stringer means _____.
A. people can make full use of vertical space of Manhattan
B. there is a limit for using empty land in Manhattan
C. the height of buildings in Manhattan is limited
D. Manhattan can spread as far as possible
高二英语阅读理解中等难度题查看答案及解析
1.Her mother is c_______(担忧) about how little food she eat.
2.You will s_______ one day for your carelessness.
3.It is an advantage to speak a foreign language f___________.(流利地)
4.Do you think I cannot r__________ you just because you have changed into a new dress?
5.Many teachers are p_________(赠送) with a bunch of flowers on Teachers’ Day.
6.He said that he p________(偏爱)a simple life though he had lots of money.
7.Many buildings were d_________ completely in the earthquake.
8.She went s_________(直接地)from school to university.
9.Most students will meet with culture s_________(冲击) when they first go abroad.
10.Standing at the window, you can have a good v________ (视野)of our school playground.
高二英语单词拼写中等难度题查看答案及解析
—I’m fed up with this rain. How I wish to go hiking this weekend!
—Forget it. I’m afraid the wet days will _____.
A. hold up B. keep up C. take up D. turn up
高二英语单项填空困难题查看答案及解析
Try to ______ at least half an hour each day for reading English and you'll make progress.
A. release B. set aside
C. adapt to D. add to
高二英语单项填空中等难度题查看答案及解析
Try to________ at least an hour each day for learning new vocabulary.
A.set off B.set out
C.set aside D.set down
高二英语单项填空中等难度题查看答案及解析