At home and at work, invisible radio waves from dozens of wireless networks are running through your space and body. It’s reasonable to worry about what effect all that wireless energy might have on your health.
But while the wireless equipment is becoming popular recently, the kind of radiation they produce has been carefully examined for decades, says John Moulder, a professor from the Medical College of Wisconsin. In 2013, Moulder wrote a report about the existing health research on Wi-Fi. Like your mobile phone, Wi-Fi routers（路由器）send and receive information using radio waves, he says.
The research on radio waves and human health goes back at least to the 1950s, when there were concerns about Navy servicemen being exposed（暴露）to powerful shipboard radar（雷达）. “We have 50 or 60 years of research into the kind of radiation connected with Wi-Fi,” Moulder says.
Foster was Moulder’s partner on that 2013 report of Wi-Fi's health effects. He says that, based on our understanding of radio wave strengths and risks, world health organizations have set safety standards for all the equipment that gives off radio waves—from phones to microwaves.
But some experts have more concerns about the types of weak radiation our wireless equipment produces. “We have animal studies suggesting even low-level exposures to the kind of radio wave radiation connected with Wi-Fi could have various negative health effects,” says Joel Moskowitz, a professor from the University of California.
Earlier this year, an animal study found heavy exposures to cell phone radiation increased rats’ risks for some brain and heart problems. But many of these animal studies are “all over the place” in their design quality, Foster says. Animal research often does not translate to humans. Also, many of the experiments are quite worrying, for the levels of radiation that the tested animals received are far greater than what people suffer when using mobile phones or wireless networks.
Moskowitz doesn’t disagree with Moulder. But he says the amount of radio wave radiation people receive today is different, and this raises new concerns. When it comes to our long-term, increasing exposures to all our wireless equipment, “we’re flying blind,” he says.
Of course, trying to avoid radio wave exposure is more or less impossible if you live in modern society. Moskowitz advises keeping wireless equipment away from your body and turning off wireless networks when they’re not in use. While any health risks are yet to be proved, “I think trying to minimize exposure is the best advice at this point,” Moskowitz adds.
1.What can be inferred from what John Moulder and Kenneth Foster say?
A. The study of Wi-Fi dates back to the 1950s.
B. There is no need to worry about the use of Wi-Fi.
C. People take risks when using phones and microwaves.
D. Navy servicemen near radar were in great danger.
2.What does the underlined sentence in Paragraph 6 suggest?
A. Many studies on animals can be seen here and there.
B. The design quality of animal research is far from scientific.
C. The conditions set for animal studies are similar to those of humans.
D. Human beings suffer from stronger radiation than the tested animals.
3.What’s Moskowitz’s attitude towards the use of wireless equipment?
A. Cautious. B. Uncaring.
C. Positive. D. Curious.
高二英语阅读理解中等难度题
At home and at work, invisible radio waves from dozens of wireless networks are running through your space and body. It’s reasonable to worry about what effect all that wireless energy might have on your health.
But while the wireless equipment is becoming popular recently, the kind of radiation they produce has been carefully examined for decades, says John Moulder, a professor from the Medical College of Wisconsin. In 2013, Moulder wrote a report about the existing health research on Wi-Fi. Like your mobile phone, Wi-Fi routers（路由器）send and receive information using radio waves, he says.
The research on radio waves and human health goes back at least to the 1950s, when there were concerns about Navy servicemen being exposed（暴露）to powerful shipboard radar（雷达）. “We have 50 or 60 years of research into the kind of radiation connected with Wi-Fi,” Moulder says.
Foster was Moulder’s partner on that 2013 report of Wi-Fi's health effects. He says that, based on our understanding of radio wave strengths and risks, world health organizations have set safety standards for all the equipment that gives off radio waves—from phones to microwaves.
But some experts have more concerns about the types of weak radiation our wireless equipment produces. “We have animal studies suggesting even low-level exposures to the kind of radio wave radiation connected with Wi-Fi could have various negative health effects,” says Joel Moskowitz, a professor from the University of California.
Earlier this year, an animal study found heavy exposures to cell phone radiation increased rats’ risks for some brain and heart problems. But many of these animal studies are “all over the place” in their design quality, Foster says. Animal research often does not translate to humans. Also, many of the experiments are quite worrying, for the levels of radiation that the tested animals received are far greater than what people suffer when using mobile phones or wireless networks.
Moskowitz doesn’t disagree with Moulder. But he says the amount of radio wave radiation people receive today is different, and this raises new concerns. When it comes to our long-term, increasing exposures to all our wireless equipment, “we’re flying blind,” he says.
Of course, trying to avoid radio wave exposure is more or less impossible if you live in modern society. Moskowitz advises keeping wireless equipment away from your body and turning off wireless networks when they’re not in use. While any health risks are yet to be proved, “I think trying to minimize exposure is the best advice at this point,” Moskowitz adds.
1.What can be inferred from what John Moulder and Kenneth Foster say?
A. The study of Wi-Fi dates back to the 1950s.
B. There is no need to worry about the use of Wi-Fi.
C. People take risks when using phones and microwaves.
D. Navy servicemen near radar were in great danger.
2.What does the underlined sentence in Paragraph 6 suggest?
A. Many studies on animals can be seen here and there.
B. The design quality of animal research is far from scientific.
C. The conditions set for animal studies are similar to those of humans.
D. Human beings suffer from stronger radiation than the tested animals.
3.What’s Moskowitz’s attitude towards the use of wireless equipment?
A. Cautious. B. Uncaring.
C. Positive. D. Curious.
高二英语阅读理解中等难度题查看答案及解析
听下面一段较长对话，回答以下小题。
1.When will the man be home from work?
A. At 5:45. B. At 6:15. C. At 6:50.
2.Where will the speakers go?
A. The Green House Cinema. B. The New State Cinema. C. The UME Cinema.
高二英语长对话中等难度题查看答案及解析
In America, since everyone is staying at home from work and school, the streets are always flooded with walkers, Joggers and bike-riders _______fresh air.
A.seeking B.sought C.seek D.to be sought
高二英语单项填空中等难度题查看答案及解析
Every now and then, you may be struck with a difficult person at work or at home. What are some of the keys to empowering yourself in such situations? 1. Keep in mind that these are general rules of thumb, and not all of them can apply to your particular situation.
2. When you feel angry or upset with someone, before you say something you might later regret, take a deep breath. This will help you remember that you’re in control of your emotions and feelings. Also, if you remain calm, the other person will likely notice and reflect on his or her behavior.
Put yourself in their shoes. It’s important to remember that we all have off days and times in our life when things are trickier. Instead of judging others’ behaviors immediately, try to practice empathy. 3. If you are sensitive to personality differences, you will be better able to handle diverse conflicts.
Be frank with others. Some people are not very self−aware, so maybe you just need to tell them constructively what the problem is. For instance, if a colleague were making unkind comments, what would you do? 4. They’ll either be apologetic as they didn’t realize it was a problem, or they’ll make some excuse.
5. If someone is behaving in a threatening way, either verbally or physically, then regardless of who they are, it’s OK to walk away or say that you are going to put the phone down and that you will return when they have calmed down.
A. Keep your cool.
B. Handle aggression wisely and confidently.
C. Adjust your style when you communicate with them.
D. It won’t hurt you to take them to one side, and ask them why.
E. You step back and reflect on how you would feel in his or her place.
F. Here are some tried and true methods of handling them quite effectively.
G. It’s helpful to remember that most difficult people also have positive qualities.
高二英语七选五中等难度题查看答案及解析
1.Radio and television are important m__ of communication.
2.Women are ________ (禁止)from going out without a veil in that country.
3.Speech d________ human beings from the animals.
4.I can ________（承担）the responsibility for the changes.
5.The m ________ of the population live in the countryside in our country.
6.我们应该沿袭我们的优良传统。
We should ________ ________ our good traditions.
7.我的一切都归功于他
I ________ everything ________ him.
8.随身带上帽子，以防烈日。
Take a hat with you ________ ________ the sun is very hot.
9.在公众心目中，他总是和恐怖电影紧密联系在一起。
He is closely ________ in the public’s mind ________ horror movies.
10.他们在草坪上划了个网球场。
They ________ ________ a tennis court on the grass.
高二英语单词拼写中等难度题查看答案及解析
Some young people ____ a good salary in a job at home instead of working hard day and night abroad, but they chose to go abroad.
A. must make B. could have made
C. should have made D. would make
高二英语单项填空简单题查看答案及解析
He sold me the car at a cheap price and included the radio ______.
A. in good relation B. from good aspect
C. for good measure D. in good spirits
高二英语单项填空中等难度题查看答案及解析
She had a computer at home, and her parents desired that she ______ all her work at home.
A. do B. does C. did D. doing
高二英语单项填空中等难度题查看答案及解析
A man came home from work late, tired, to find his 5-year-old son waiting for him at the door.
“Daddy, how much money do you make each hour?”
“If you must know, I make ＄20 each hour.”
“Oh,” the little boy answered, with his head down. He thought for a moment, looked up and said, “Daddy, could you lend me ＄10?”
The father was furious, “If you asked for the money to buy a toy or some other rubbish, then go straight to your room and think about why are you so selfish (自私)！”
The little boy went to his room no words and shut the door. After a short while, the father calmed (平静) down, and started to think, “Maybe he really needs to buy something and he didn’t really ask for money very often.” So he went to the little boy’s room.
“Sorry！Maybe I was too hard on your just now.” said the man, “Here’s ＄10.”
“Oh, thank you Daddy！” he said happily. Then the boy took out some coins. When the father found that the boy already had money, he got angry again.
“Why do you want more money since you already have some?” the father shouted angrily.
“Because I didn't have enough, but now I do.” The little boy replied, “Daddy, I have ＄20 now. Can I buy one hour of your time? Please come home early tomorrow. I would like to have dinner with you. ”
1.How much does the boy’s father make one hour?
A. ＄10. B. ＄20.
C. ＄30. D. ＄40.
2.In this passage, the underlined word “furious” means ________ .
A. very angry B. quite happy
C. too excited D. a little nervous
3.The boy wanted to buy _________ with twenty dollars.
A. a new novel for himself B. a nice present for his father
C. a toy for his own birthday D. one hour of his father’s time
4.From the passage, we can infer that the boy’s father_________.
A. often played with his son B. spent little time with his son
C. didn’t love his son at all D. often came home early
高二英语阅读理解中等难度题查看答案及解析
As anyone who freelances(做自由职业) knows, there are lots of advantages of working at home alone. But there are drawbacks too, like the potential loneliness. No wonder co-working spaces are becoming so popular: they permit self-employed individuals to feel like they are part of all office environment, while making them get some work done too. But renting a co-working space does cost money.
Now a Swedish project is aiming to change that by turning people’s under-used homes into temporary co-working spaces, available to freelancers for free. Hoffice was started by freelancers Christofer Gradin Franzen and Johline Zandra about a year ago in Stockholm when they invited a few people into their home office to work together. It was a great success, and the project has since spread to a number of cities in Europe, North and South America, Australia, India and Japan. Anyone can sign up and offer their home space as a free co-working space, or go find a Hoffice near them.
On a Hoffice day, everyone arrives and starts work at a certain hour. After 45 minutes, everyone gets up to take a break, stretch, do qigong or yoga for 10 to 15 minutes. Afterwards, people can gather around again, and re-state their intentions and goals for the rest of the work day, as a way to motivate each other. Meals can be eaten together at a certain hour, potluck-style(家常饭)or by bringing your own lunch.
This process creates an encouraging and supportive work environment. As some freelancers describe, “By working at Hoffice, we give ourselves and each other the gift to spend our days in a social working environment, where we are extremely productive without ignoring our other human needs. We also make sure to give us and each other what we need to feel calm, happy, inspired and creative during the working day.”
So Hoffice is not just about sharing space; it's also about a free exchange of ideas. And perhaps the best thing is that Hoffices are free to use.
1.Hoffice was started to ________.
A. change people’s attitude to work
B. provide a co-working space for free
C. improve people’s working conditions
D. encourage people to be more social
2.What’s the main idea of Paragraph 3?
A. How people respond to Hoffice.
B. What Hoffice means to people.
C. What people share at Hoffice.
D. How a Hoffice day works.
3.Some freelancers’ descriptions of Hoffice suggest that they ________.
A. work longer than before
B. can’t be separated from each other
C. benefit a lot from the working style
D. expect more people to join them
4.What do we know about Hoffice according to the text?
A. It has been popular in many countries for many years.
B. It has created many new job opportunities.
C. It focus on not only environment but also human needs.
D. It is suitable for people from all walks of life.
高二英语阅读理解困难题查看答案及解析