If you’re concerned about climate change, should you feel guilty about hanging out online? Maybe not.
Data, or information, is often processed and stored on a computer. A computer that provides data to other computers is called a server. Servers also store data such as videos, pictures and emails. A building that holds many servers is known as a data center. Without data centers and servers, we could not access websites on our own computers and phones every day.
Some people worry that data centers use a lot of energy, which could be bad for the environment. But recent studies found that data centers do not use as much energy as they thought.
Eric Masanet, a professor at Northwestern University, is the study’s main author. Masanet and his team looked at the energy used by data centers around the world, and found that data centers have improved. They saw a 20 percent energy improvement each year.
These improvements are due to better servers. They use less energy than servers once did. Other technologies have also improved.
Masanet said to make sure computers use energy effectively, some things need to happen. Businesses and governments should get involved. Countries need to be open about how much electricity their data centers use. Large data companies also need to source their electricity from renewable energy, such as sunlight and wind. For example, Google and Apple both purchased or generated enough renewable electricity to match 100 percent of their data center energy use in 2018.
“People should care about the energy data centers need,” said Masanet. “But we don’t have to feel bad about staying connected.”
1.Why do people need data centers?
A.To help people reduce time on computers.
B.To store information and let them use websites.
C.To provide energy needed to run people’s phones.
D.To save data on the Internet instead of on servers
2.What caused data centers to have a 20 percent improvement in energy use?
A.Less fuel is being burned in the atmosphere. B.Fewer people are online at the same time.
C.Servers and technologies have improved. D.More information is stored in phones.
3.What does the underlined word “source” in paragraph 6 mean?
A.Measure. B.Store. C.Choose. D.Obtain.
4.According to Eric Masanet, how to make sure computers use energy effectively?
A.Businesses and governments should be involved. B.The boundaries of countries should be opened.
C.People need to spend less time online. D.People need to rely on big data companies.
高二英语阅读选择中等难度题
If you’re concerned about climate change, should you feel guilty about hanging out online? Maybe not.
Data, or information, is often processed and stored on a computer. A computer that provides data to other computers is called a server. Servers also store data such as videos, pictures and emails. A building that holds many servers is known as a data center. Without data centers and servers, we could not access websites on our own computers and phones every day.
Some people worry that data centers use a lot of energy, which could be bad for the environment. But recent studies found that data centers do not use as much energy as they thought.
Eric Masanet, a professor at Northwestern University, is the study’s main author. Masanet and his team looked at the energy used by data centers around the world, and found that data centers have improved. They saw a 20 percent energy improvement each year.
These improvements are due to better servers. They use less energy than servers once did. Other technologies have also improved.
Masanet said to make sure computers use energy effectively, some things need to happen. Businesses and governments should get involved. Countries need to be open about how much electricity their data centers use. Large data companies also need to source their electricity from renewable energy, such as sunlight and wind. For example, Google and Apple both purchased or generated enough renewable electricity to match 100 percent of their data center energy use in 2018.
“People should care about the energy data centers need,” said Masanet. “But we don’t have to feel bad about staying connected.”
1.Why do people need data centers?
A.To help people reduce time on computers.
B.To store information and let them use websites.
C.To provide energy needed to run people’s phones.
D.To save data on the Internet instead of on servers
2.What caused data centers to have a 20 percent improvement in energy use?
A.Less fuel is being burned in the atmosphere. B.Fewer people are online at the same time.
C.Servers and technologies have improved. D.More information is stored in phones.
3.What does the underlined word “source” in paragraph 6 mean?
A.Measure. B.Store. C.Choose. D.Obtain.
4.According to Eric Masanet, how to make sure computers use energy effectively?
A.Businesses and governments should be involved. B.The boundaries of countries should be opened.
C.People need to spend less time online. D.People need to rely on big data companies.
高二英语阅读选择中等难度题查看答案及解析
The climate is changeable in this area. You should prepare more clothes ___________ the sudden change of weather.
A. in charge of B. in place of
C. in honor of D. in case of
高二英语单项填空中等难度题查看答案及解析
Most of the new diseases we humans have faced in the past several decades have come from animals. The more we come into contact with wild animals, the more we risk a so-called disease “spillover” from animals to humans.
“As people move and wildlife move in response to a changing environment, humans and wildlife and animals will come in contact more regularly,” said Jeanne Fair from the Los Alamos National Laboratory in New Mexico. Fair argues that by shifting animal habitats, climate change will also make the opportunities for disease spillover more frequent. “Everything is sort of shifting and will shift into the future as the environment changes through climate change,” Fair said.
Scientists, including climatologists and epidemiologists (流行病学家) on Fair’s team at Los Alamos, are beginning to model how changes to the climate will impact the spread of infectious diseases. It’s early days for this kind of research, but previous studies suggest that extreme weather has already played a role in at least one outbreak. Scientists say drought and deforestation have combined to force bats out of rain forests and into orchards (果园) in Malaysia to find food. Those bats, a common disease reservoir, then passed the Nipah virus through pigs to humans for the first time in the late 1990s.
“We’re going by the past data to really predict what’s going to happen in the future,” Fair said, “And so, anytime you increase that wildlife-human interface, that’s sort of an emerging disease hot spot. And so, that’s just increasing as we go forward.”
Jeffrey Shaman, head of the climate and health program at Columbia University’s public health school, argues we don’t yet know whether climate change will cause a net increase in infectious disease rates globally. For example, mosquitoes carry disease that affects millions of people across the world every year. As their habitats expand in some parts of the world, they might contract diseases elsewhere. Shaman says what we know for certain about climate change is that it will make it harder to predict where disease outbreaks will pop up.
1.How does climate change affect the spread of disease according to Fair?
A.By breaking animals’habits. B.By increasing animals’varieties.
C.By promoting animals’breeding. D.By changing animals’living environment.
2.What is the example of bats for in paragraph 3?
A.Explaining the influence of Nipah virus.
B.Proving the harm of bats to human beings.
C.Showing the effects of climate change on disease.
D.Presenting scientists’early study about the cause of disease.
3.What can we infer from Fair’s words in paragraph 4?
A.Humans should give up studying animals.
B.Frequent contact with animals can cause disease outbreaks.
C.Disease hot spots will disappear if animals die out.
D.Past data can solve the problems in the future.
4.What could be the best title for the text?
A.Climate Change and Disease Spillover
B.Animals’Interaction with Humans
C.Early Studies about Extreme Weather
D.Scientists’Prediction for Disease Outbreaks
高二英语阅读选择中等难度题查看答案及解析
Every one complains. Even if you argue that you are the happiest person in the world, you still complain sometimes. Sometimes you complain without even realizing it, but rarely is it ever helpful. 1. Here are some tips to stop complaining and give up the negative thoughts:
2.
When you find yourself thinking or saying a negative comment about something or someone, stop and force yourself to say something positive instead. Seek the help of a cheerful friend to change you when you complain and help you to see the positive in the situation
Make a list of things you are grateful for.
You often complain about the things you don't have without noticing those things you already have. Be grateful for what you have in your life because you are lucky simply for being yourselves. 3.
Learn to adapt to the changes.
There are many things you can't change. 4. Always find the positive side of each situation, regardless of however difficult the situation is. With parents' and friends' support, you can survive any life changes.
Allow yourself to vent（发泄）your feelings every once in a while.
Constantly ignoring negative thoughts could add up. If you are really going through a rough time, don't be afraid to share your feelings with a close friend or family member or see a therapist.
Find what makes you happy.
5. Maybe it is time to make the hard decision to move on to another job or career. Uncover what your biggest complaints are about and see if you can change the situation to make you happy.
Choose happiness, focus on the positive, and be kind always!
A.The best and only thing you can do is to accept the
B.Sometimes this list can be easy, full of hobbies you enjoy
C.Change the way you think.
D.Set down things you are thankful for and you'll see that you don't have any reason to complain.
E.Make positive people friends
F.Are you constantly complaining about your present job?
G.So how can you manage to force yourselves to end complaining?
高二英语七选五中等难度题查看答案及解析
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查看答案及解析
If you need to interview someone for an article but you have never interviewed before, it can be frightening. Here are some tips for preparing for and conducting a successful interview.
1. If the person is a known author or speaker, take the time to read or listened to his/her work, or at least get familiar with his/her most recent or most important work. If the interview will cover events, review whatever is known publicly about those events..
Being a recording device(录音设备). You can use your phone or an audio recorder. In this way you needn’t struggle to write things down. 2. And this will make it easier to include direct quotes when you start writing.
Remember to make it a conversation rather than a list of questions. Prepared questions are just a guideline. 3.. You can also try to ask your interviewee about his/her personal thoughts and reactions to events and people they deal with.
Appropriate feedback(反馈) is also important. Feel free to say words that show you are listening, like “yeah” and “Mmmm”. 4. You can also give more facial feedback like smiling.
5. If the interviewee changes suddenly from one line of thought to another, lead them back to the area you are focusing on. Guide the interview but don’t keep interrupting with many questions.
A.Politely ask if you can interview them.
B.Do your homework before you pick up the phone.
C.Then you can focus all your attention on the interview.
D.Consider how all the questions can be asked in a short time.
E.Nodding your head can be an encouragement to the interviewee.
F.In order to get the information you need, you should guide the interview.
G.You can try to ask questions based on what they have said to you in previous responses.
高二英语七选五中等难度题查看答案及解析
What If We Don’t Get Along?
Teachers want to get along with you and enjoy seeing you learn. But teachers and students sometimes have personality clashes（人格冲突）. 1. If you show your teacher that you want to make the situation better, he or she will probably do everything possible to make that happen. Take these steps if the problem seems difficult to solve:
1. Talk to an adult you trust, such as a parent, guidance counselor, or both.
2. 2. You may not feel immediately comfortable with your teachers, but that may change as you get to know one another.
3. If you’ve given it time, talk with your parents about what to do next. Lots of times, a meeting can be set up to discuss the problem. 3. Everyone’s goal should be to create trust and kindness.
Your relationship with your teachers is often your first chance to develop a “business relationship”. They are different from your family relationships and friendships, which are built on affection and love. 4. But they don’t necessarily need to be good friends or like each other a lot. They simply need to respect one another, be polite, and stay focused on the jobs at hand.
When you act this way, and remember that you’re not the only kid in the class, you are
helping your teacher. 5. Teachers also like it when students follow directions and when they learn and obey the rules of the classroom. For instance, there may be rules about listening when another student is talking, about taking turns, or about raising your hand when you want to say something or ask a question.
A.Give it time.
B.This can happen between any two people.
C.This may clear the air and make things better.
D.Your teacher is likely to notice this and appreciate it.
E.Therefore, those teachers rarely show respect towards their students.
F.A teacher cannot necessarily answer all the questions his students ask.
G.In a business relationship, both parties get something out of the relationship.
高二英语七选五中等难度题查看答案及解析
Every day, in all kinds of weather, thousands of men and women jog. 1. Most joggers begin because they hear it is a very good exercise. Jogging makes the heart stronger and helps people lose weight. It can also help them feel better about themselves.
Donald Robbins, who is forty-two years old and works in an office, began jogging a few years ago because he felt he was too fat. At first, he could only run about 100 yards. It took him three months to be able to run a mile. 2. Many joggers, like Donald Robbins, feel that if they can succeed in jogging, they can succeed at other things also, and quite often this feeling helps them at their jobs.
Should you jog too? 3. Jogging may be too much exercise for you.
Does jogging cost much? No, it costs almost nothing. But it is very important to have a good pair of shoes that are made especially for jogging. 4.
How fast should you go? Jog with a friend and talk to each other as you run. If you have difficulty in talking, you’re going too fast.
5. Remember not to go too far too soon. In fact, you should walk, not run, the first few times. Then do some short jogs, but no more than what you can do comfortably. After that, increase your distance a quarter or half mile every two weeks or so. Maybe in a few years, you can run in a marathon too. Thousands of people do.
A.How far should you jog?
B.Jogging can aid weight loss.
C.Why has jogging-running become so popular?
D.If you do, be sure to ask your doctor for advice.
E.It is a popular physical activity that can keep you fit.
F.But two years later, he ran in a marathon race over twenty-six miles.
G.They protect your feet and legs from the shock of running on hard surface.
高二英语七选五中等难度题查看答案及解析
An increase of just 2°C in global temperatures could make the world considerably drier and more desert-like, new research has warned.
More than a quarter of the world's land surface, home to more than 1.5 billion people, would become more arid and droughts and wildfires could be widespread. Limiting global warming to 1.5℃ would dramatically reduce the percentage of the Earth's surface affected, scientists found.
“Aridification (干旱化) would emerge over 20 to 30 percent of the world's land surface by the time the global temperature change reaches 2℃”，said Dr Manoj Joshi from the University of East Anglia’s School of Environmental Sciences and one of the study's co-authors.
The research team studied projections from 27 global climate models and identified areas of the world where aridity will greatly change. The most affected areas are parts of South East Asia, Southern Europe, Southern Africa, Central America and Southern Australia. These areas are home to more than .20 percent of the world's population — that’s over 1.5 billion people.
The study looked at the current rate of global temperature increase and compared it to data from before the industrial revolution. The world has already warmed by 1℃since then. Two thirds of the affected regions could avoid significant aridification if warming is limited to 1.5℃, researchers found.
The Paris Agreement, which was first signed in 2015, is an international agreement to control climate change. It hopes to hold the increase in the global average temperature to well below 2℃ and to pursue efforts to limit the temperature increase to 1.5℃.
But the local protectionism makes it possible that the world may become drier and the horrific scenes of the Californian wildfires may become more common. The fire burned more than 440 square miles of Ventura and Santa Barbara counties and destroyed more than 1,000 structures after breaking out in early December.
1.What should we do to prevent aridification?
A.We should limit the temperature rise to 2°C.
B.We should limit the temperature rise to 1.5°C.
C.We should limit the industrial development.
D.We should limit the global population.
2.Which country is most likely to be affected by aridification?
A.China. B.Russia. C.Canada. D.Philippine.
3.Why does the author mention the Californian wildfires in the text?
A.To show the harm of aridification.
B.To emphasize the loss of the fire.
C.To support the local protectionism.
D.To tell us wildfires are common.
4.What is Dr Manoj's attitude towards the global temperature change?
A.Indifferent. B.Approving. C.Concerned. D.Unclear.
高二英语阅读选择中等难度题查看答案及解析
If you feel stressed by responsibilities at work, you should take a step back and identify (识别) those of 1. (great) and less importance. Then, handle the most important tasks first so you’ll feel a real sense of 2. (achieve). Leaving the less important things until tomorrow 3. (be) often acceptable.
Most of us are more focused 4.our tasks in the morning than we are later in the day. So, get an early start and try to be as productive 5. possible before lunch. This will give you the confidence you need to get you through the afternoon and go home feeling accomplished.
Recent 6.(study) show that we are far more productive at work if we take short breaks7.(regular). Give your body and brain a rest by stepping outside for 8. while, exercising, or dong something you enjoy.
If you find something you love doing outside of the office, you’ll be less likely 9. (bring) your work home. It could be anything-gardening, cooking, music, sports—but whatever it is, 10.(make) sure it’s a relief from daily stress rather than another thing to worry about.
高二英语短文填空中等难度题查看答案及解析