With all the wars, fighting and sadness in the world today, it's not only necessary, but also essential to have a good sense of humor just to help us get through each and every day of our lives. Putting a smile on someone's face when you know they are feeling down in the dumps ( 处于沮丧中), as the saying goes, makes me feel good and warms my heart.
How would you feel if you could not joke around with your wife, husband, child, co-worker neighbor, close friend, or even just someone that you are standing in line with at your comer store? I am always saying things that make others smile or laugh, even if I don't know the person I'm joking around with.My Grandma always found humor in everything she did, even if it was the hardest job anyone could imagine.This not only relieves stress in any situation, but also is common courtesy (礼貌) to speak to others that are around you.
I know of a few people that don’t have a funny bone in their bodies, as they say.Everyone around them could be rolling on the floor after hearing a great joke and they would sit there without the slightest smile on their face.They don't get the joke that makes others laugh. I am busting a gut while they just sit there, looking at me as if I were from outer space. How can people not get a really funny joke?
Laughing is essential to keep your stress levels under control. Without humor we would find ourselves with a lot of psychological problems, or on a lot of medications to keep us from going crazy. There is too much sadness in this present world. It drives people crazy. We all need to find a way to bypass the sadness and bring a little light into our lives. So, I believe our best medicine is to get together and tell some jokes and have some fun laughing together.
The phrase “busting a gut" in the third paragraph can be replaced by __________.
| A．explaining carefully | B．speaking loud |
| C．keeping silent | D．laughing hard |
Eyesight problems are common among all ages and if they are left untreated, they can cause serious headaches or other problems. The good news is that most eyesight problems can easily be sorted out by wearing glasses.
Regular eye tests are important for everyone. Children and teenagers, under the age of 16 and up to the age of 19 for those full-time education, have the right to have eye tests for free in Britain. As the eye test is free, there’s no excuse for not having a regular eye test. Doctors suggest that it’s better to have an eye test about once a year.
Wearing glasses isnt always regarded as all that cool and teens who suddenly need to wear glasses may find it difficult to accept. If theyve grown up wearing glasses, then they may be more used to it. However, if your eyes are in poor health, not wearing glasses can put even more pressure on your eyes and could make them even worse.
Thankfully, the days of little choice of glasses frames (框架) for teenagers are gone and there’s now a wide selection of frames. If a teen does need to wear glasses, then it’s good to let him or her choose the type, as he or she will be able to choose something he or she feels comfortable. Dont forget to be guided by the experts on glasses too.According to the text, teens in the UK ______.
| A．have few eyesight problems |
| B．can design their own glasses |
| C．change their glasses very often |
| D．can check their eyes without paying |
How often do doctors suggest teens to have an eye test?
| A．Once a month. |
| B．Once every six months. |
| C．Once a year. |
| D．Twice a year. |
It can be learned from the text that teens ______.
| A．find it difficult to buy comfortable glasses |
| B．prefer to wear cool glasses at an early age |
| C．are advised to wear glasses if their eyesight is poor |
| D．think they are much cooler when wearing glasses |
In the past, teens who wanted to buy glasses ______.
| A．were unable to find the right glasses |
| B．only had a few styles to choose from |
| C．could not find an expert to ask for advice |
| D．were worried about the quality of glasses |
When Xia Min started drinking alcohol（酒精，乙醇） with her classmates at a friend’s birthday, she didn’t realize what would happen to her. She drank a lot and fell into a coma (昏迷). The 15year-old girl from Chongqing never recovered.
Xia’s death is warning to other students. A new rule went into effect on January 1, 2006. Teens are not allowed to buy or drink alcohol. Shops are not allowed to sell it to them.
A 1999 Chinese law forbade (禁止) shops to sell alcohol to youths under 18. But it is not taken seriously by shopkeepers because it doesn’t have specific rules. People hope the new rule will work.
“I tasted alcohol when having the dinner of the last New Year’s Eve,” said Lian Yuqi, a 16-year-old girl in Xiamen. She believes that the new rule will stop teens from drinking and help them grow in a healthy way.
“Although it may be a little disappointing not to have beer at parties, I think we can have soft drinks instead,” she said.Xia Min died from alcohol at the age of ______.
| A．15 | B．16 | C．17 | D．18 |
The underlined word it means ________.
| A．a warning sing | B．a shopkeeper |
| C．the new rule | D．a 1999 Chinese law |
We can know that ________.
| A．it is against the new rule for youths under 18 to drink alcohol |
| B．shops can sell alcohol to a 16 years old youth. |
| C．without an ID card, young people cant buy alcohol |
| D．it seems that the young girl, Liang Yuqi, likes to drink alcohol |
According to the passage, which of the following is TRUE?
| A．The new rule has worked very well. |
| B．Shopkeepers can sell alcohol to teens above 18. |
| C．Chinas legal drinking age is clearly under18. |
| D．Many teens drink alcohol to show theyve grown up. |
If your mother wants to tell you something , she uses words . Birds can not talk as we do . But some birds can make sounds to warn their young of danger . They have their own ways to make the young birds do certain thing .
The jackdaw is a kind of blackbirds that lives in Europe . Jackdaws live together in flocks. (群) Yong jackdaws do not know their enemies . When an older jackdaw sees a dog , it makes a loud tattling (格格响的)sound. The young birds know this sound means an enemy is nearby. The sounds warns them to know their enemy .
If a young jackdaw is in a dangerous place, a jackdaw parent flies over him from behind .The parent bird flies low over the young birds back, the parents’ tail feathers move quickly from side to side, It is trying to say , “ Follow me .”
At the same time , the parent calls out , “ Key-aw ,Key-aw .” The parent means , “ Fly home with me .” The young bird then follows the older one home .
Young jackdaws do not have to learn what certain sounds mean. They know the meaning of these sounds from the time they hatch （孵化，小鸡等出壳）.The jackdaw lives in _____ .
| A．Europe | B．Australia |
| C．America | D．Africa |
When an old jackdaw sees a dog , it _____ .
| A．calls out “Follow me .” |
| B．makes a loud sound |
| C．flies away |
| D．fights the dog . |
Parent jackdaw can use their tail feathers to ______ .
| A．ask their young to follow them |
| B．play a game with the young |
| C．tell the meal time |
| D．give a warning of a fire |
Which of the following does this story lead you to believe ?
| A．All animal parents can talk to their young. |
| B．Dogs are the most dangerous enemies for jackdaws. |
| C．Young jackdaws know the meaning of their parents sound when they grow older. |
| D．Some birds can give certain information to one another. |
New research shows that the healthy brain may hold memories which we don’t even remember. In The Journal of Neuroscience, experts report that the brain might hold more memories than people realize, but that restoring those memories can be tricky.
Memory Check
First, participants saw a list of 120 real words mixed with 80 nonsense words. Next, they saw another word list and tried to remember which words had been on the first list. Meanwhile, their brains were scanned with functional magnetic resonance(核磁共振) imaging.
While participants reviewed the second word list, their brain scans showed more activity in a certain brain area -- the posterior（后部的） median temporal lobe(脑叶) -- when they saw words that had been on the first word list.
But participants didn’t always remember that they’d seen those words before. Sometimes, they goofed and said they hadn’t seen those words before. In other words, the posterior median temporal lobe was more sensitive to memory than participants’ consciousness, the researchers note.
“Album”of Memories
Another part of the median temporal lobe also attracted the scientists’ attention. The anterior（前面的）median temporal lobe showed more activity when participants thought they were seeing a new word, the study shows.
So, why did participants sometimes mess up their memory recall? It might be that two parts of their brain -- the posterior and anterior median temporal lobes -- might be dueling(决斗) for the upper hand in deciding what actually happened in the past, the study notes.
In other words, memories might have a photo album in the brain, but sometimes we forget what’s on all of the photo album’s pages.A person sometimes has difficulty recalling because.
| A．he is unconscious when he gets his memories |
| B．he forgets what is on the pages of the photo album |
| C．there are two parts in his brain dueling for the upper advantage |
| D．the anterior median temporal lobe is more active than the posterior |
According to the passage the researchers are.
| A．studying how a person remembers things |
| B．studying a magazine The Journal of Neuroscience |
| C．examining posterior and anterior median temporal lobes |
| D．doing experiments to find out what disturbs a person’s memory |
What did the experts discover when the participants saw the words on the first word list appear on the second word list?
| A．The instrument worked faster. |
| B．The participants were more conscious. |
| C．The posterior median temporal lobe was more active. |
| D．The anterior median temporal lobe was more active. |
The underlined wordgoofedin the fourth paragraph means.
| A．made a mess of | B．made an answer for |
| C．made out of | D．made the best of |
Researchers are now using 3D printing to create models of the human heart to help heart specialists. The heart doctors can use the models to better help patients before an operation.
Dr. Bramlet, a children’s heart expert at the University of Illinois College of Medicine, says the 3-D models show information he cannot get any other way.
“And so what we’ve done with the printed models? We’ve pulled it out of the screen so that you can actually hold it in your hand and evaluate the anatomy（解剖）.”
A 3-D printer uses images from a digital display to create a physical model of a human heart. Matthew Bramlet says doctors can use the model to understand the anatomy.
Pictures from medical tests like CAT scan or MRI are sent to a 3-D printer to create a heart in a plaster（石膏）form. The printer then constructs the heart, thin layer by thin layer. Dr. Bramlet says the model matches the real heart in every detail. “When we’re done with the model and made our decision, we want to be able to go back to the source image and confirm those findings,” he says.
Dr. Bramlet has built model hearts for different kinds of heart operations. All of the operations were successful. In his first case, digital images showed only one tiny hole in a baby’s heart. But, the 3-D printed model showed several defects or problems that the baby was born with. Dr. Bramlet says those defects could not be seen easily in the images. The heart surgeon was able to change the type of surgery for the patient based on the 3-D model. He added that 3-D heart models saves time during heart operations.
Kathy Magliato is a heart surgeon at Saint John’s Health Center in Los Angeles. She welcomes the new technology. She says it could help her make better decisions before she operates on the hearts of her patients.
“I can then take this very complicated structure before the operation and I can hold it in my hand and plan an operation around what I’m seeing, touching and feeling. That to me is what can potentially change the game in an operation and save lives.”
Dr Bramlet continues to research the technology. He is working with the National Institutes of Health to build a 3-D library that includes heart models and images that others can use.Whats the main idea of the passage?
| A．The application of 3-D printing in heart operations |
| B．The development of 3-D technology. |
| C．The difficulties of heart operations. |
| D．Heart operations with the help 3-D models. |
What is the biggest advantage of 3-D models in the diagnose of heart problems?
| A．Surgeons can see, touch and feel the 3-D models. |
| B．They can help surgeons save time. |
| C．They can be made exactly like the hearts. |
| D．They can help discover the otherwise hidden heart problems. |
Which of the following statements is TRUE?
| A．The 3-D model can be taken out of a screen. |
| B．CAT scan and MRI are no longer needed. |
| C．The 3-D model is an exact copy of the heart. |
| D．Digital images are not reliable in heart operations. |
What can we infer from the passage?
| A．Digital images will mislead heart surgeons. |
| B．More patients will benefit from the 3-D technology. |
| C．Heart operations will never fail with 3-D models. |
| D．Surgeons cannot operate on hearts without 3-D models. |