1 . You must think a computer is the best thing in the world, right? You must think it works at a super speed and can do everything? Well, it’s not! In fact, the brain is much more powerful than any super computer! Think about when a glass is just about to fall off the table. Your brain controls everything that you need to do to save that glass from falling. First your eyes check out what’s going on, then tell your brain, and your brain decides how quickly you need to react (反应), and then your muscles (肌肉) go into action. That is just from your brain. No computer could ever come close to that!
The brain weighs just 3 pounds, but it controls everything you do from thinking, learning, feeling even to breathing and your heart beating. Even though the brain is just 2% of your body weight, it uses around 20% of all your energy in your body. That is a lot for such a small organ. There are about 100 billion tiny, tiny little cells (细胞) in your brain. There are so many that it would take you over 3,000 years to count them all!
Your brain stops growing when you’re 18, but it actually keeps on developing and learning new things. So your parents are really super smart! You won’t be able to fool them! Believe it or not, your brain NEVER stops working. Even during sleeping, the brain works for long-term memory establishment. It is realized that the brain is the second organ in the body as the heart that never stops during human lives.
So everyone should be proud of such a gift of nature.
1. In Paragraph 1, the writer wants to tell us _________.| A．eyes and muscles react quickly |
| B．the brain controls everything in your body |
| C．the computer is the best thing in the world |
| D．the brain is more powerful than any computer |
| A．the body weight | B．2% of the body weight |
| C．all energy in the body | D．around 20% of the energy in the body |
| A．The brain doesn’t work during sleeping. |
| B．The brain is the only organ that never stops. |
| C．The brain keeps growing during human lives. |
| D．The brain keeps on developing during human lives. |
| A．Business Weekly. | B．Medicine. | C．Science. | D．Sports. |
1. What does the man take to school?
| A．Five books. | B．Three pens. | C．Two rulers. |
| A．He studies for too long. |
| B．He picks up some dictionaries. |
| C．He carries a heavy backpack. |
1. What’s the probable relationship between the speakers?
| A．Teacher and student. |
| B．Doctor and patient. |
| C．Friends. |
| A．Buy a pair of glasses. |
| B．Improve (提高) her English. |
| C．Get a physical cheek up (检查). |
4 . Scientists have long known that humans are built for endurance（耐力）.Now, a new study shows people’s hearts are also bettered for endurance — though how much depends on whether we run, farm, or stay put on the sofa.
To get to the heart of the matter, researchers examined the hearts of more than 160 adult men from four groups: long-distance runners, sedentary（久坐的）adults, highly trained football player, and the Tarahumara, native American farmers famous for their running ability.
When researchers compared the thickest of the heart’s ventricles（心室）, they found there were clear differences. Endurance runners and farmers had larger, longer ventricles with thin walls, which could help pump（输送）more blood for a long time, the researchers report today in the Proceedings of the National Academy of Sciences. The football player, whose training was short, high-intensity (高强度的）exercise, had shorter, wider ventricles with thicker walls. So did the sedentary humans.
Because high-intensity activity causes blood pressure to increase for a short amount of time, such shorter ventricle, thick walls, and rounder shapes are good for the football players, researchers say, by making sure enough blood is pumped to the brain. But even without those pressures, a couch potato lifestyle seems to result in the same kind of thickening.
But sedentary readers shouldn’t feel heartbroken — the researchers said that changes in heart shape are likely reversible（可逆转的）with more endurance activities.
1. What does the new study find out? (NO MORE THAN 8 WORDS)2. How many groups did the researchers examine? (NO MORE THAN 3 WORDS)
3. Who had larger and longer ventricles with thin walls? (NO MORE THAN 4 WORDS)
4. What does the underlined phrase “a couch potato lifestyle” mean? (You can use Chinese)
5. Jimmy is a computer engineer who has to work for long hours on computer. Which of the following ventricle and walls may suit him according to the passage?
A.
B. 
C. 
D. 
| A．At a school. | B．At a gym. | C．At a hospital. |
| A．Her eyes. | B．Her figure. | C．Her skin. |
7 . While learning the science lessons, I used to get a doubt-why ears, nose, tongue and eyes should be called as special senses? The basic reason is that these are the channels through which we maintain contact with the surroundings. Though apparently it may feel like these are individual sensory organs, they do show some connectivity. Interestingly, our hearing is less sharp after we eat a heavy food. Isn't it good for a sound nap after a stomach-full meal? That does not mean we go deaf after a meal, but the hearing pitch does change after a heavy meal.
We usually give credit of the taste to our tongue, but do you know that unless saliva dissolves something, our tongue cannot recognize the taste of the food eaten？Taste is nothing but the food chemicals dissolved in the saliva being sensed by the taste buds present on the tongue. Try to dry off your tongue and mouth with a tissue paper and then taste something.
Women are much better smellers than men. They are born with this characteristic ability and can correctly pinpoint the exact fragrance of the sample. We all can store almost 50, 000 different scents, which are strongly tied to the memories.
Pupils do not respond to light alone, but to the slightest bit of noise around too. Thus surgeons, watchmakers and those professionals who have to perform a much delicate job do prefer to have a sound-free environment. Even a small noise can dilate their pupils, change the focus and blur their vision. If you do not wear glasses or contact lens due to having a 6/6 vision, you are just among the one third of the human population. It is now statistically proved that only one third of the population has perfect vision, the rest all are either wearing glasses or are trying to read with a compromised vision.
Each and every one of us has a particular or individualistic or characteristic smell, which is unique to us, except for the identical twins. This smell is very subtle yet can be sensed even by a newborn. It may be due to this scent that the newborn recognizes the presence of his parents around. Many of us can pinpoint the smell of our significant friends and colleagues. A significant part of this phenomenon is guided by genetics but it is also changed by the environment, diet and personal hygiene. This all together creates the unique chemistry that is individualistic for each person.
1. What does the example of “heavy meal and hearing” in the first paragraph prove?| A．Every sensory organs has its specific function. |
| B．We easily fall asleep after eating a heavy meal |
| C．We feel the world through our eyes, ears, nose and tongue. |
| D．All the individual sensory organs are actually connected. |
| A．Our sense of taste becomes sharper when our tongue is dry. |
| B．The chemical dissolved in the saliva helps digest food eaten. |
| C．Saliva plays an important role in identifying the taste of food. |
| D．The taste buds works better when there is less saliva in the mouth. |
| A．A craftsman who is working on a diamond. | B．An actor who is doing rehearsal. |
| C．A pilot who is flying a plane. | D．An engineer who is checking machines. |
| A．The identical genes guide him. | B．He can recognize their unique smell |
| C．He can hear their individual voices. | D．The sensor in his brain picks them out. |
| A．The discovery of special senses. | B．The functions of sensory organs. |
| C．The connectivity of our organs. | D．The differences in sense among people. |
Three Myths About Skin
We put importance into caring for skin since it’s the first thing other people see. Skin might be one of the least correctly
Myth No. 1: Healthy skin is skin that looks perfect. When we talk of healthy skin, we
Myth No. 2: You only need sunscreen on sunny days. UV rays from the sun are so strong that
Myth No. 3: You can shrink pores. Pores are the tiny openings in our skin. They’re
Our skin is
9 . Who is to blame for the shapes of our noses?
If you are not satisfied with the shape of your nose, blame it on climate, not your parents or grandparents. In a study published this week in the journal PLOS Genetics, researchers from the Pennsylvania State University found that human noses may have been shaped, in part, by a long process of adaptation to local climate conditions.
The findings were based on an examination of the size and shape of noses on people with West African, South Asian, East Asian, or Northern European ancestry. It showed that the width of the nostrils is strongly related to temperature and absolute humidity (绝对湿度), but not the result of genetic drift (遗传漂变).
One purpose of the nose is to condition the air we breathe, to ensure that it is warm and moist when it reaches the lungs, which helps to prevent infections.
People with narrower nostrils probably had better and had more offspring than people with wider nostrils, in colder climates.
The researchers said that it may be worth investigating whether the shape of the nose impacts ones risk of contracting breathing diseases when living in a climate that is different from one's ancestors.
| A．This leads to a gradual decrease in nose width in populations living far away from the equator (赤道) |
| B．Wider nostrils (鼻孔) seem to warm and humidify the inside of nose better to protect us from being infected |
| C．Narrower nostrils seem to alter the airflow so that noses can humidify and warm the air more efficiently |
| D．Generally, wider noses are more common in warm and humid climates, while narrower noses are more common in cold and dry climate |
| E．This can clearly explain why our ancestors aren’t to blame for the nose shapes and sizes |
| F．Investigations into nose shape evolution and climate adaptation may have medical implications as well |
10 . Much information can be conveyed, purely through our eyes, so the expression “eyes also talk” is often heard.
Can you recall any experience that further proves this statement? On a bus you may quickly glance at a stranger, but not make eye contact. If he senses that he is being stared at, he may feel uncomfortable.
It is the same in daily life. If you are stared at for more than necessary, you will look at yourself up and down to see if there is anything wrong with you. If nothing goes wrong, you will feel angry about other's staring at you that way. Eyes do convey information, right？
Looking too long at someone may seem to be rude and aggressive. But things are different when it comes to staring at the opposite sex. If a man looks at a woman for more than 10 seconds and refuses to turn away his gaze, his intentions are obvious. That is, he wishes to attract her attention, to make her understand that he is showing affection for her.
However, the normal eye contact for two people engaged in conversation is that the speaker will only look at the listener from time to time, in order to make sure that the listener does pay attention to what the former is speaking, to tell him that he is attentive.
If a speaker looks at you continuously when speaking, as if he tries to control you, you will feel uneasy. A poor liar usually exposes himself by looking too long at the victim, since he believes the false idea that to look straight in the eye is a sign of honest communication.
In fact, continuous eye contact happens between lovers only, who will enjoy looking at each other tenderly for a long time, to show love that words cannot express.
Evidently, eye contact should be done according to the relationship between two people and the specific situation.
1. What may a person usually do on a bus?| A．Glance at a stranger with eye contact. | B．Use eyes to talk to a stranger politely. |
| C．Glance at a stranger without eye contact. | D．Talk to a stranger politely after a quick glance. |
| A．He thinks that he is honest. | B．He wants to control the victim. |
| C．He feels uneasy about others’ eye contact. | D．He looks straight at the victim for too long a time. |
| A．He likes her eyes. | B．He admires her. |
| C．He knows her well. | D．He makes contact with her. |
| A．Eyes Can Also “Talk” | B．How to Make Eye Contact |
| C．Different Ways of Expressing Thoughts | D．The Importance of Body Language |
