Some colors people see late at night could cause signs of clinical(临床的) depression(沮丧). That was the finding of a study that builds on earlier study findings. They show that individuals(个人) who live or work in low levels of light overnight(整夜) can develop clinical depression. Doctors use the word “clinical depression” to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
In the new study, American investigators designed an experiment that exposed hamsters(仓鼠) to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and are active at night.
The animals were separated into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light.
After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water.
Randy Nelson heads the Department of Neuroscience at Ohio State University. He says animals that slept in blue and white light appeared to be the most depressed. “What we saw is that these animals didn’t show any sleep uneasiness(不安) at all but they did mess up biological clock genes and they did show depressive sign while if they were in the dim(微弱) red light, they did not.”
Randy Nelson notes that photosensitive(感光) cells in the eyes have little to do with eyesight. He says these cells send signals to the area of the brain that controls what has been called the natural sleep-wake cycle.
He says there’s a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness.
1.Researchers use hamsters in the experiment because __________.
A. they are similar to humans in dealing with colors
B. they are easy to observe and study
C. they are sensitive to colors like human beings
D. they are active at night and sleep during the day
2.What sign shows that the hamsters are being depressed?
A. They drink less sugary water.
B. They don’t sleep well.
C. Their eyesight becomes worse.
D. Their energy level becomes low.
3.__________ tends to cause hamsters to be depressed.
A. Dim light B. Red light
C. Blue light D. Darkness
4.What can help people who work late at night to avoid being depressed?
A. Not being exposed to dim red light when using computers.
B. Equipping their computer screens to put it more in the reddish light.
C. Living or working in low levels of light overnight.
D. Going to see doctors of clinical depression regularly for help.
高二英语阅读理解中等难度题
Some colors people see late at night could cause signs of clinical(临床的) depression(沮丧). That was the finding of a study that builds on earlier study findings. They show that individuals(个人) who live or work in low levels of light overnight(整夜) can develop clinical depression. Doctors use the word “clinical depression” to describe severe form of depression. Signs may include loss of interest or pleasure in most activities, low energy levels and thoughts of death or suicide.
In the new study, American investigators designed an experiment that exposed hamsters(仓鼠) to different colors. The researchers chose hamsters because they are nocturnal, which means they sleep during the day and are active at night.
The animals were separated into four groups. One group of hamsters was kept in the dark during their night-time period. Another group was placed in front of a blue light, a third group slept in front of a white light, while a fourth was put in front of a red light.
After four weeks, the researchers noted how much sugary water the hamsters drank. They found that the most depressed animals drank the least amount of water.
Randy Nelson heads the Department of Neuroscience at Ohio State University. He says animals that slept in blue and white light appeared to be the most depressed. “What we saw is that these animals didn’t show any sleep uneasiness(不安) at all but they did mess up biological clock genes and they did show depressive sign while if they were in the dim(微弱) red light, they did not.”
Randy Nelson notes that photosensitive(感光) cells in the eyes have little to do with eyesight. He says these cells send signals to the area of the brain that controls what has been called the natural sleep-wake cycle.
He says there’s a lot of blue in white light. This explains why the blue light and white light hamsters appear to be more depressed than the hamsters seeing red light or darkness.
1.Researchers use hamsters in the experiment because __________.
A. they are similar to humans in dealing with colors
B. they are easy to observe and study
C. they are sensitive to colors like human beings
D. they are active at night and sleep during the day
2.What sign shows that the hamsters are being depressed?
A. They drink less sugary water.
B. They don’t sleep well.
C. Their eyesight becomes worse.
D. Their energy level becomes low.
3.__________ tends to cause hamsters to be depressed.
A. Dim light B. Red light
C. Blue light D. Darkness
4.What can help people who work late at night to avoid being depressed?
A. Not being exposed to dim red light when using computers.
B. Equipping their computer screens to put it more in the reddish light.
C. Living or working in low levels of light overnight.
D. Going to see doctors of clinical depression regularly for help.
高二英语阅读理解中等难度题查看答案及解析
When the telephone rings late at night, most women guess it must be one of only four or five people calling. A sister? Maybe. An emergency? Possibly. A mother? Probably not at that time of night. Much more probably it is a close female friend calling to tell you that she has split up with her boyfriend again or perhaps simply that a good movie has just started on TV.
At a time when families are spread far and wide and marriages often end in divorce, friendships are becoming more and more important. Erika, a 32-year-old lawyer, is strengthened by her ten-year friendship with her married friend Jane. “I was very sick one night, so I called Jane at about 3:00 a.m. to talk about it,” she says. “She was very supportive and even came over to take me to the doctor’s the next morning.”
As American TV shows like Friends, which follows the lives of a very close group of young friends, have become more popular, many of us are beginning to see the value of such friendships. TV shows like this tell us that our romantic relationships may not last, but we need to keep in touch with our close friends if we want to survive.
A TV show called Real Women is about the lives and relationships of five former school friends. In this show, family, husbands, and work are all less important than friendships. One of its actresses says the show reflects her own experience. “Friendship is about commitment. I don’t see some of my friends for ages but when we get together, it is as if time hasn’t passed.”
This is true of Erika and Jane’s friendship. With Erika’s family 200 miles away,it is Jane who keeps a spare set of keys to Erika’s apartment and waters her plants whenever she is away. “Having Jane around gives me a certain amount of freedom. It is not the kind of thing that you could ask anyone to do, but she knows I would do the same for her.” Erika feels that because she no longer sees her family every day, she now enjoys a closer relationship with her best friend. Jane, who may move to a different city soon, is worried about leaving such a support system of friends. “My friends have more to do with my life than my parents and, therefore, I don’t have to spend a lot of time explaining things to them. Friends are more up to date with what is happening.”
1.According to the passage, a late-night phone call for most women is probably from .
A. a friend B. a relative
C. a stranger D. a doctor
2.TV shows like Friends tell us that .
A. marriages with friends often end up in failure
B. families and work are as important as friends
C. close friends help us face problems in life
D. friendship fades as time goes by
3.From the passage, we can learn that Erika and Jane .
A. live far away from each other
B. have been friends for 32 years
C. spend a lot of time explaining things
D. trust and support each other in daily life
4.Which of the statements will the author probably agree with?
A. A near friend is more helpful than a faraway relative.
B. Both marriage and friendship demand commitment.
C. However far away we’re, parents worry about us.
D. Long distance makes the hearts closer.
高二英语阅读理解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
What surprised me most was to see some of the village people ______ on the benches at the end of the classroom .
A.seated | B.seating | C.seat | D.to be seating |
高二英语单项填空中等难度题查看答案及解析
Many people like white as a color as it is a _____ of purity.
A. symbol B. sign C. signal D. symptom
高二英语单项填空简单题查看答案及解析
These are some signs that you can see on the roads of Great Britain.
Number one is a sign with the number thirty on it. When drivers see this sign they must not go at more than thirty miles an hour. We see this sign when we get to parts of the country where there are many houses and other buildings, for example, when we are getting near a town. Thirty miles an hour is the speed limit. Number two is sign for the end of the speed limit. We are out of the town now and may go at more than thirty miles an hour. Number three is a sign that we are near a crossroads, that is, a place where two roads cross. We must drive carefully. Number four is a sign that there is a bend in the road. Again, we must drive slowly and carefully. Number five is a sign that there is a hill and number six is a sign that the roads get narrow. Drivers must go slowly and carefully. Number seven has the word “school” on it. This is a sign that there is a school at the side of a street or road. Perhaps there are children going to school or leaving school. So drivers must look carefully and go slowly until they are past the school building.
Number eight is a sign with the letter P on it. The letter P is for “parking.” A parking place is a place where drivers may leave their cars. If the driver of a car wants to leave his car and go to the shops, he looks for this sign. Then he knows that he may leave his or her car there.
1.Who will most probably read the passage?
A. People who drive badly. B. People who are learning to drive.
C. People who drive well. D. People who drive carelessly.
2.When a driver sees the sign number one, he must .
A. always go at 30 miles an hour
B. go at more that 30 miles an hour
C. not go at more than 30 miles an hour
D. stop
3.A driver must drive carefully when he gets to .
A. a bend B. a crossroads
C. a narrow road D. all of them
4.If a driver wants to leaves his car and go to the shops, .
A. he can leave his car anywhere
B. he can leave his car at the gate of any shop
C. he must look for the sign with the letter P on it
D. he can leave his car at the side of the street.
5.Now , you—three drivers are driving side by side along the road, if you see the No. six sign, you have to _______.
A. drive along one after one because the road is not wide enough
B. drive more slowly because of the speed limit
C. drive more carefully because school children may cross the road
D. drive slowly because you have got to drive uphill
高二英语阅读理解中等难度题查看答案及解析
A sign is another kind of language. Here are some of them that you see on the roads.
Number one is a sign with the number thirty on it. When drivers see this sign, they must not go at more than thirty kilometers an hour. We see this sign when we are getting near a town. Number two is a sign that we’re near a crossing. We must drive carefully. Number three is a sign that there is a bend in the road. Again, we must drive slowly and carefully. It is not safe to go round a bend very fast. Number four is a sign that there is another road coming in from the right. There is a junction at this place. Number five is a sign that there is a hill and number six is a sign that the road gets narrow. Drivers must go slowly and carefully. Number seven has the word “SCHOOL” on it. This is a sign that there is a school at the side of the street or the road. Perhaps there are children going to or leaving school. So drivers must look carefully and go slowly. Number eight is a sign with the letter “P” on it. The letter “P” means “Parking”. At some places, there’re the signs “No parking” or “No waiting”. If a driver leaves his car near one of these signs, a policeman may come and write down the number of his car.
61. At the places where you see Sign 1, ________.
A. you are already out of a town
B. you still have thirty kilometers to go
C. there must be a town thirty kilometers away
D. there must be many houses and buildings not far away
62. There stands Sign 2 near a place where________.
A. two roads cross B. people can cross the road
C. the roads get narrow D. there are no traffic lights
63. You have to drive not only slowly but also carefully when you find________.
A. each of the eight signs B. either of Signs 2 and 3
C. all of Signs 3, 5, 6 and 7 D. any of Signs 3, 5, 6 and 7
64. A driver can leave his car________.
A. near Sign 8 at any time
B. near a sign with “No parking” on it
C. near a sign with “No waiting” if there’re no police there
D. near a sign with “P” on it in the daytime
65. People put these signs on the roads to________.
A. show drivers the way B. stop cars going too fast
C. make driving even safer D. learn another kind of language
高二英语阅读理解简单题查看答案及解析
Many students stay up late into the night, some of whom during the boring lecture.
A. drop off B. drop in
C. get away D. drop out
高二英语单项填空中等难度题查看答案及解析
At first sight, you would think the collection of hundreds of colored shards(碎片)could be a work of abstract art. But the objects are the contents of the stomach of a sea turtle that lost its battle with plastic pollution.
Environmentalists examined the stomach of the turtle found off the coast of Argentina. What they found is the symptom of the increasing threat to sea turtles from a human addiction to plastic.
Sea turtles often mistake plastic items for jellyfish or other food. Ingesting(摄取)ocean pollution can cause a digestive blockage and internal cuts. The result can be dangerous, followed by death.
Humans produce 260 million tons of plastic a year. When those products are pulled into the sea’s currents, the plastics are just broken into smaller pieces which are consumed by marine life at the bottom of the food chain. An examination of a green turtle found off Florida discovered that, over the course of a month, the animal’s faeces(粪便)had contained 74 foreign objects, including “four types of balloons, different types of hard plastic, a piece of carpet--like material and two 2--4 mm tar balls.”
“The oceans have become a giant refuse bin for all manner of plastics. All sea turtle species may be seriously harmed, “according to the biologists Colette Wabnitz, from the University of British Columbia. ”The symptom of this growing crisis can be seen inside and on sea turtles as well as their oceanic and terrestrial habitats. It is urgently necessary to directly confront the source of plastic pollution, redesign packaging and rethink the very idea of ‘throwaway culture’.”
Almost all marine species, from plankton to whales, have ingested plastic. But, even in small quantities, plastic can kill sea turtles, the biologists said.
Fifty out of 92 turtles found dead, stranded on the shorelines of Rio Grande do Sul state in Brazil, had ingested a “considerable amount of man-made debris”.
1.What’s tile passage mainly about?
A. How to prevent the sea turtle from plastic.
B. Why plastic is dangerous to the sea turtle.
C. Protecting the sea turtle from being polluted.
D. Sea turtles suffering from plastic pollution.
2.The author mentions the “throwaway culture” probably in a(n) _________ tone.
A. praising B. positive C. ironic D. comedic
3.The underlined word in the last paragraph probably means _________.
A. a kind of food B. a kind of fish
C. pieces of cloth D. pieces of rubbish
4.The paragraph following the last one will probably talk about ________.
A. the way the biologists examined the sea turtle
B. some tips on how to make sea turtles avoid plastic
C. how to prevent plastic pollution
D. the reason why we should protect the sea turtle
高二英语阅读理解中等难度题查看答案及解析
Some people maintain that watching violence on TV is one of the major causes of _____ behavior and crime in society.
A.artificial B.automatic C.aggressive D.allergic
高二英语单项填空中等难度题查看答案及解析