When we go out traveling,we need either a map or GPS to point us in the right direction.But bumblebees（大黄蜂）have neither of these things,yet they still know the best route.Why is that?
It turns out that these hard-working little bees try many possible passages before picking out the best one and remembering it the next time they journey out.They learn from“trial and error”,according to a study by scientists from the University of London.
We use it all the time in our daily lives—trial and error is a helpful problem-solving method.It is the basic concept of“learning from your mistakes”.Most of the time,we fail on our first try,so we analyze the failure,make adjustments and try again.After repeating this a few times,we finally get things right.
This might sound a bit tiring,but it’s certainly effective and it works for bumblebees.
In the study,scientists set up five artificial flowers in a field.Each one of them was fitted with motion-triggered（运动触发的）cameras and had landing platforms with drops of sugar in the middle to attract the bees.
At first,scientists noticed the bees’ flying routes were long and complex.But after they gained enough experience,they gradually got to their destination quicker.Every time a bee tried a new route that was shorter than the route it had tried before,it was likely to use it again.Otherwise the new route would simply be given up and another one was tested.
“The speed at which they learn through trial and error is quite extraordinary for bumblebees,as this complex behavior was thought to be one that only larger-brained animals have,”Professor Lars Chittka,leader of the study,told Sciencedaily.com.
In fact,the smart bumblebees don’t try every possible route.Normally,they would only try about 20 out of the 120 possible routes to visit the flowers.
More interestingly,scientists found that if they removed a flower,bees would continue looking at that location,even if it has been empty for a long time.“It seems bees don’t easily forget a fruitful flower,”Chittka said.
1.The bumblebees are good at finding the best route because ________.
A. they have relatively smaller brains
B. their body parts function like GPS
C. they try out different routes and remember the best ones
D. they take the trouble of testing every possible route
2.The author explains the bumblebees’ behavior of trial and error by ________.
A. using numbers B. making a metaphor（比喻）
C. making comparisons D. talking about human behavior
3.The study led by professor Lars Chittka suggests that ________.
A. bumblebees try to keep their flying routes long and complex
B. every new route the bumblebees take is shorter than the one they take before
C. bumblebees are familiar with every flying route they have taken before
D. scientists find it unbelievable that bumblebees learn from their mistakes so quickly
4.What is the main point of the article?
A. Bumblebees are as smart as large-brained animals.
B. Trial and error is an effective way to solve our daily problems.
C. A new discovery about how bumblebees find the best routes through trial and error.
D. How bumblebees remember the best routes,small as their brains are.
高三英语阅读理解中等难度题
When we go out traveling,we need either a map or GPS to point us in the right direction.But bumblebees（大黄蜂）have neither of these things,yet they still know the best route.Why is that?
It turns out that these hard-working little bees try many possible passages before picking out the best one and remembering it the next time they journey out.They learn from“trial and error”,according to a study by scientists from the University of London.
We use it all the time in our daily lives—trial and error is a helpful problem-solving method.It is the basic concept of“learning from your mistakes”.Most of the time,we fail on our first try,so we analyze the failure,make adjustments and try again.After repeating this a few times,we finally get things right.
This might sound a bit tiring,but it’s certainly effective and it works for bumblebees.
In the study,scientists set up five artificial flowers in a field.Each one of them was fitted with motion-triggered（运动触发的）cameras and had landing platforms with drops of sugar in the middle to attract the bees.
At first,scientists noticed the bees’ flying routes were long and complex.But after they gained enough experience,they gradually got to their destination quicker.Every time a bee tried a new route that was shorter than the route it had tried before,it was likely to use it again.Otherwise the new route would simply be given up and another one was tested.
“The speed at which they learn through trial and error is quite extraordinary for bumblebees,as this complex behavior was thought to be one that only larger-brained animals have,”Professor Lars Chittka,leader of the study,told Sciencedaily.com.
In fact,the smart bumblebees don’t try every possible route.Normally,they would only try about 20 out of the 120 possible routes to visit the flowers.
More interestingly,scientists found that if they removed a flower,bees would continue looking at that location,even if it has been empty for a long time.“It seems bees don’t easily forget a fruitful flower,”Chittka said.
1.The bumblebees are good at finding the best route because ________.
A. they have relatively smaller brains
B. their body parts function like GPS
C. they try out different routes and remember the best ones
D. they take the trouble of testing every possible route
2.The author explains the bumblebees’ behavior of trial and error by ________.
A. using numbers B. making a metaphor（比喻）
C. making comparisons D. talking about human behavior
3.The study led by professor Lars Chittka suggests that ________.
A. bumblebees try to keep their flying routes long and complex
B. every new route the bumblebees take is shorter than the one they take before
C. bumblebees are familiar with every flying route they have taken before
D. scientists find it unbelievable that bumblebees learn from their mistakes so quickly
4.What is the main point of the article?
A. Bumblebees are as smart as large-brained animals.
B. Trial and error is an effective way to solve our daily problems.
C. A new discovery about how bumblebees find the best routes through trial and error.
D. How bumblebees remember the best routes,small as their brains are.
高三英语阅读理解中等难度题查看答案及解析
Yawning sends out certain messages -either “Oh ，this movie is so boring” or “I probably need to get some sleep”. But did you know that a yawn can also help your brain to cool down when it is overheated?
A new study, led by a research team at Princeton University, has indicated that yawning could be the brain’s natural way of regulating temperature. People yawn more often when the temperature outdoors is lower than their body temperature but are less likely to yawn when it is hotter outdoors, according to Sciencedaily. com.
The research team did an experiment on 160 people, 80 in summer and 80 in winter, to examine how often they yawned at different air temperatures. The study found that people yawned more often in winter than in summer. Scientists say that when the air temperature is lower outside the body, there is heat exchange between the overheated brain and the cool air. But when the air temperature is higher than or equal to the body, people are less likely to yawn because the hot air they breathe in will make the brain even hotter.
When people yawn, their jaw is also stretched ，which increases blood flow and may also help cool the brain
The study showed that the amount someone yawned could be related to the amount of time they spent outside. The longer they spent outside in summer, the less they yawned. Nearly 40 percent of participants yawned within their first five minutes outside, but after that the percentage was reduced to less than 10 percent.
However, the result was the opposite in winter. The number of people who yawned increased when they spent more than five minutes outdoors. But the change was only slight compared to summertime.
According to Gallup, this is the first report to show that yawning frequencies change depending on season. This could help us to understand better the way our brains work. It may also help us understand the reason why frequent yawning can sometimes be a sign of brain disease.
1.The purpose of the experiment is ______.
A. to prove people yawn in winter and in summer equally
B. to indicate brain can regulate temperature naturally
C. to find the frequency of people’s yawning
D. to show the real reason why people yawn
2.The information we get from Paragraphs 5 and 6 is that ______.
A. longer outdoor summertime results in more yawns
B. yawning frequency changes with outdoor time
C. yawning frequency increases with outdoor time
D. longer outdoor wintertime leads to fewer yawns
3.Acorrding to the text ，people yawn more often ______.
A, when the air temperature is lower outside the body
B. when the hot air breathed in makes the brain hotter
C. when the air temperature is higher than the body
D. when the air temperature is equal to the body
4.What could be the best title for the text?
A. Yawning Is A Sign of Brain Disease
B. Yawning Carries Some Information
C. Yawning Benefits Your Body
D. Yawning Cools Your Brain
高三英语阅读理解中等难度题查看答案及解析
Whether you use a GPS device（设备） in your car or Google Maps on your smartphone, few of us travel anymore without digital help. 1. For one thing, GPS isn’t as accurate as you might think. What’s more, science is beginning to discover that people who rely only on navigational technologies may have a poor sense of place during travel.
2. They soon become outdated as cities change, requiring users to continually purchase updated versions. They’re also easily damaged from exposure to water, poor weather conditions and other physical forces.
However, paper maps still offer a few advantages that technologies can’t. For example, studying a map allows you to get a full view of where you’re going, including the roads, forests, towns, historic sites, rivers and mountains you’ll come across along the way. Many older maps are wonderful, offering a lovely feast for the eyes. 3.
Research by Toru Ishikawa and colleagues at the University of Tokyo found that GPS users spent 30％ more time looking at their device than those who used a paper map. 4. Instead they tended to stare at their screens and follow directions, never gaining a full view of where they were going.
Therefore, go ahead and use your GPS, but also carry a paper map as a handy backup. 5. Also it could even be a life-saver!
A. It will improve your travel experiences.
B. But don’t hurry to fold up your paper maps.
C. They also had a poorer recollection of surrounding scenery.
D. Compared with digital maps, paper maps do have disadvantages.
E. What’s more, paper maps tend to focus on smaller geographic areas.
F. They can also take you back in time to have a glimpse（瞥） of history.
G. In other words, they didn’t see or experience much during their travels.
高三英语七选五中等难度题查看答案及解析
It was already late when we set out for the next town, according to the map was about fifteen miles away on the other side of the
There we felt that we would find a bed the night. Darkness fell soon after we left the village, but luckily we met as we drove fast along the narrow winding road that the hills. As we climbed , it became colder and rain began to fall, it difficult at times to see the road. I asked John, my companion, to drive more .
After we had traveled for about twenty miles, there was still no sign of the town which was on the map. We were beginning to get . Then without warning the car stopped. A quick showed that we had run out of petrol. Although we had little food with us, we decided to the night in the car.
Our meal was soon over. I tried to go to sleep at once, John, who was a sleeper, got out of the car after a few minutes and went for a walk the hills. Soon he came back. From the top of the hill he had seen, in the valley below, the of the town we were looking for. We at once unloaded all our luggage and with a great effort, to push the car to the top of the hill. Then we went back to the luggage, loaded the car again and set off down the hill. less than a quarter of an hour we were in the town, where we found a quite easily.
1.A. which B. it C. where D. that
2.A. rivers B. villages C. towns D. hills
3.A. surprised B. sure C. pleased D. afraid
4.A. at B. in C. through D. for
5.A. everybody B. somebody C. nobody D. anybody
6.A. got to B. arrived C. led to D. belonged to
7.A. taller B. faster C. lower D. higher
8.A. getting B. thinking C. causing D. making
9.A. certainly B. slowly C. carefully D. surely
10.A. set B. marked C. built D. drawn
11.A. worried B. excited C. cold D. warm
12.A. attention B. operation C. examination D. information
13.A. live B. spend C. spare D. stay
14.A. since B. though C. so D. but
15.A. poor B. fast C. quick D. heavy
16.A. across B. through C. down D. up
17.A. map B. lights C. bus D. situation
18.A. ought B. tried C. managed D. succeeded
19.A. For B. In C. Since D. At
20.A. hotel B. friend C. policeman D. cinema
高三英语完型填空中等难度题查看答案及解析
It was already late when we set out for the next town, ________ according to the map was about fifteen miles away on the other side of the ________.
There we felt ________ that we would find a bed ________ the night. Darkness fell soon after we left the village, but luckily we met ________ as we drove fast along the narrow winding road that ________ the hills. As we climbed ________, it became colder and rain began to fall, ________ it difficult at times to see the road. I asked John, my companion, to drive more ________.
After we had traveled for about twenty miles, there was still no sign of the town which was ________on the map. We were beginning to get ________. Then without warning the car stopped. A quick ________ showed that we had run out of petrol. Although we had little food with us, we decided to ________ the night in the car.
Our meal was soon over. I tried to go to sleep at once, ________John, who was a ________ sleeper, got out of the car after a few minutes and went for a walk ________ the hills. Soon he came back. From the top of the hill he had seen, in the valley below, the ________ of the town we were looking for. We at once unloaded all our luggage and with a great effort, ________ to push the car to the top of the hill. Then we went back to the luggage, loaded the car again and set off down the hill. ________ less than a quarter of an hour we were in the town, where we found a ________ quite easily.
1.A. which B. it C. where D. that
2.A. rivers B. hills C. towns D. villages
3.A. surprised B. afraid C. pleased D. sure
4.A. at B. in C. through D. for
5.A. everybody B. somebody C. nobody D. anybody
6.A. got to B. arrived C. led to D. belonged to
7.A. taller B. higher C. lower D. faster
8.A. getting B. thinking C. causing D. making
9.A. certainly B. carefully C. slowly D. surely
10.A. marked B. set C. built D. drawn
11.A. excited B. worried C. cold D. warm
12.A. attention B. operation C. examination D. information
13.A. spend B. live C. spare D. stay
14.A. since B. though C. so D. but
15.A. quick B. fast C. poor D. heavy
16.A. across B. through C. down D. up
17.A. lights B. map C. bus D. situation
18.A. ought B. tried C. succeeded D. managed
19.A. For B. In C. Since D. At
20.A. policeman B. friend C. hotel D. cinema
高三英语完型填空中等难度题查看答案及解析
Each year , millions of people go abroad to work ,study ,or travel .It’s a great way to find out what life is like in another part of the world !You’re probably hoping to make new friends and learn about the culture in your host country everything from attitudes and beliefs to social customs and popular foods. But constantly having to deal with new situations can be frustrating (挫折), even stressful.
Homesickness, stress, fear , and confusion are all symptoms of “culture shock”. At first ,you may feel like getting on the plane and heading home .It’s OK to have those feelings, but the following are some tips to help you handle the challenges that you will face .
Don’t expect to be perfect , You may feel frustrated that you have culture shock ,especially since you probably spent so much time preparing for your trip .No matter how much information you read ,or how well you speak the host language ,it is natural to feel overwhelmed sometimes. If you give yourself some time, things will gradually get easier.
Have an open mind .While it’s certainly OK to feel frustration or confusion in your new surroundings ,try not to form an opinion about the new culture too soon .Don’t think of the host as better or worse , just different –you’ll be more willing to try new things .
Participate .This is obvious ,but everybody needs to be reminded. Just watching life go on around you isn’t good enough .You really need to try things for yourself . Don’t worry about making a mistake; people in your host country will generally be very understanding and willing to help if you have question .Your study abroad experience is a unique and special time in your life, one that you’ll never forget. If you follow our suggestions ,you’ll be able to handle it well ,and have a wonderful time. Good luck!
1.What is culture shock ?
A. Something you feel surprised at .
B. The problems you have when you go to another country
C. The frightening feelings you have
D. Something different from your own culture
2.What should you do when you feel depressed ?
A. Go back to your own homeland
B. Talk to someone about your problem
C. Give yourself some time to get used to it
D. Stop thinking of it
3.Which of the following statements is WRONG ?
A. It is natural to feel overwhelmed sometimes
B. Not everything is perfect
C. Try to form the opinion about the new culture as soon as possible
D. Tell others about your problems
4.What is the main idea of this article ?
A. How to overcome culture shock B. Why do people have culture shock
C. Who might have culture shock D. When will you have culture shock
高三英语阅读理解简单题查看答案及解析
When travelling in buses or trains,we are likely to have conversations _____ we give information or opinions about different things.
| A．where | B．which | C．what | D．when |
高三英语单项填空简单题查看答案及解析
When travelling in buses or trains, we are likely to have conversations _____ we give information or opinions about different things.
A. where B. which C. what D. when
高三英语单项填空中等难度题查看答案及解析
When travelling in buses or trains,we are likely to have conversations _____ we give information or opinions about different things.
A. where B. which C. what D. when
高三英语单项填空中等难度题查看答案及解析
My sister Jodie and I are always traveling for work. As jewelry designers, we need to go to a lot of shows. We can’t pack lightly and usually bring about four suitcases filled with our work.
Most of our stuff is made from heavy materials and metals. So part of the routine for us when we fly is getting stopped by security. Our jewelry sets off the alarms, and we’ve become accustomed to arriving early to go through private screenings. Most of the time, it’s not troublesome.
However, on our recent trip to a Paris trade show, we were stopped at security and asked to empty our bags. One of the agents walked over to another agent and they started whispering to each other. Both gentlemen came back, and one of them then told us that it seemed that we were carrying a very dangerous object.
My sister and I just said, “Huh?” Of course, we were a little concerned, thinking that maybe someone put something dangerous in one of our bags when we weren’t looking.
One of the agents then started to unpack our bags. I kept asking what he was looking for and then the object in question finally appeared. It was our Cosima necklace. It’s a piece of jewelry, with large, metal triangular spikes.
My sister and I looked at each other and breathed a huge sigh of relief. We started laughing and explained to the two male agents that it was just a necklace from our collection, not a weapon of mass destruction. They thought we were lying, and one agent kept repeating that he believed it was a weapon.
I tried to explain that we were jewelry designers going to a trade show, and this was simply a piece from our collection. But the agents didn’t buy it. Then a few women guards came over to assist. One of the women guards was holding an earring up to her ear and another was trying on a ring. Apparently, they liked our stuff.
It was only at this point that the male guards gave up. And I think they also got tired of listening to a bunch of women talk about jewelry. They let us through.
We took the names of the women agents and sent them a piece of jewelry when we got back to say thanks.
1.When the object in question finally appeared, the writer and her sister felt _______.
A. anxious B. relieved C. excited D. frightened
2.The writer and her sister were stopped by the agents because ________.
A. their suitcases were too heavy
B. the agents wanted to play a joke on them
C. they were suspected to carry dangerous objects
D. the agents wanted to admire the jewelry inside the suitcases
3.The underlined word “buy” in Paragraph 7 probably means ________.
A. doubt B. believe C. purchase D. understand
4.The writer sent the women agents a piece of jewelry in order to ________.
A. persuade them to buy her jewelry later
B. get help from them next time
C. show them her talent in designing jewelry
D. show them her gratitude for their assistance
5.According to this passage, which of the following statements is NOT true?
A. Someone put something dangerous in one of the writer’s bags.
B. The male agents didn’t believe the writer at first.
C. The female agents liked the jewelry.
D. The writer is always travelling on business.
高三英语阅读理解中等难度题查看答案及解析