2 . 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.

3 . Where are the speakers?

A．At a school.

B．At a gym.

C．At a hospital.

4 . Why is the man holding up his arm?

A．As a friendly sign.

B．For medical reasons.

C．To draw attention to something.

5 . 听下面一段较长对话，回答以下小题。
1. How long is that since the woman’s last visit here?

A．Over a year.

B．Over half a year.

C．Over a couple of months.

2. What’s the woman’s problem?

A．She has a toothache.

B．She lost a tooth.

C．She feels uncomfortable when eating something cold.

3. What will the woman do next?

A．Go away.

B．Get her teeth fixed.

C．Get her teeth further examined.

6 . What does the woman like best about Jane?

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.

2. What does the underlined sentence in the second paragraph mean?

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.

3. Which of the following person prefers a quiet environment?

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.

4. According to the passage, how does a newborn sense his parents are with him?

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.

5. What is the text mainly about?

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.

8 . 假定英语课上老师要求同桌之间交换修改作文，请你修改你同桌的以下作文。文中共有10处语言错误，每句中最多有两处。错误涉及一个单词的增加、删除或修改。
增加：在缺词处加一个漏字符号（∧），并在其下面写出该加的词。
删除：多余的词用斜线（\）划掉。
修改：在错的词下划一横线，并在该词下面写出修改后的词。
注意：1.每处错误及其修改均仅限一词；
2.只允许修改10处，多者（从第11处起）不计分

From the picture, we can see that there are many students are wearing glasses, that is，they are short-sighted. As we all know, which is important for everyone to keep good eyesight. But do you know how to protect your eyesight? First, don’t keep your eyes work for a long time. You’d better have rest after you have studied an hour or so. Second, pay much attention to the following. Don’t read under the sun or in a poor light; don’t to read in bed or in a moved bus. Third, do eye-exercise every day. It will also help you keep good eyesight. And last, you should have enough sleep. Only you obey the rules above can you prevent your eyesight from become short-sighted.

9 . Where does the conversation take place most probably?

A．In the classroom.

B．In an office.

C．In a hospital.