With the development of modern agriculture and industry, people are producing more and more waste things that pollute our earth. As we know, we have only one earth. Essentially（本来）, fresh water on our earth is limited. And now it's becoming less and less. We're destroying the earth and also ourselves!

　　For example, as a result of pollution, Lake Erie（伊利湖）, on the borders（边界）of the USA and Canada, is now without any living things.

　　Pollution in water is not simply a matter of “poisons”, it is killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first living things to be harmed are either plants or plankton（浮游生物）. But these are the food for fish and birds and other creatures. When this food disappears, the fish and birds die too. It is not until dead fish and water birds are seen at the river's edge or on the seashore that people realize what is happening.

　　Where do the things which pollute the water come from? There are two main sources（来源）--waste water and industrial waste. As more detergent（洗涤剂）is used in the home, more of it is finally put into our rivers, lakes and seas. Detergents harm water birds by dissolving（分解）the natural things which keep their feathers（羽毛）waterproof. Waste water itself, if it is not properly treated, makes the water dirty and prevents all forms of life in rivers and the sea from receiving the oxygen（氧）they need. Industrial waste is even more harmful since there are many highly poisonous things in it.

　　So, if we want to stop this pollution, the answer is simple：waste water and industrial waste must be made clean before flowing into the water. It may already be too late to save some rivers and lakes, but others can still be saved if the correct action is taken at once.

(1)Which of the following is the best title for this passage?

[　　]

A．Why Lake Erie Is Polluted

B．The Most Dangerous Pollution

C．Stop Polluting Water

D．How to Protect the Sea

(2)Pollution in water is noticed ________.

[　　]

A．when the first living things in it are harmed

B．when a good many fish and water birds die

C．as soon as waste water is poured into it

D．as soon as plants and plankton disappear

(3)From the fourth paragraph, we can infer that the living things die in dirty rivers mainly because ________.

[　　]

A．they have not enough food to eat

B．they are not properly treated

C．industrial waste is more harmful

D．they can't get enough oxygen

(4)The meaning of the word “waterproof”is ________.

[　　]

A．full of water

B．not allowing water to go through

C．covered with water

D．cleaned by water

完型填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，掌握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项，并在答题卡上涂黑。
As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been  36 only once-for a woman who had merely fainted. But the   37 made me quite curious about how  38 this kind of thing happens. I wondered what I would do if  39 with a real mid-air medical emergency-without access  40 a hospital staff and the usual emergency equipment. So   41 the New England Journal of Medicine last week   42 a study about in-flight medical events, I   43 it with interest.
The study estimated that there are a(n)  44 of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not   45 ; fainting and dizziness are the most frequent complaints.  46 13% of them-roughly four a day-are serious enough to   47 a pilot to change course. The most common of the serious emergencies   48 heart trouble, strokes, and  difficult breathing.
Let’s face it: plane rides are   49 . For starters, cabin pressures at high altitudes are set at roughly   50 they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty   51 , but passengers with heart disease   52 experience chest pains as a result of the reduced amount of oxygen flowing through their blood.  53 common in-flight problem is deep venous thrombosis（血栓）-the so-called economy class syndrome（综合症）.  54 happens, don’t panic. Things are getting better on the in-flight emergency front. Thanks to more recent legislation（立法）, flights with at   55 one attendant are starting to install emergency medical equipments to treat heart attacks.
36. A. called         B. informed       C. addressed      D. surveyed
37. A. accident       B. incident       C. condition      D. disaster
38. A. soon           B. many           C. long           D. often

As a physician who travels quite a lot, I spend a lot of time on planes listening for that dreaded “Is there a doctor on board?” announcement. I’ve been   16  only once — for a woman who had merely fainted. But the   17  made me quite curious about how   18  this kind of thing happens. I wondered what I would do if   19  with a real midair medical emergency — without access   20  a hospital staff and the usual emergency equipment. So   21  the New England Journal of Medicine last week   22  a study about in-flight medical events, I read it   23  interest.
　　The study estimated that there are a(n)   24  of 30 in-flight medical emergencies on U.S. flights every day. Most of them are not   25 ; fainting and dizziness are the most frequent complaints.  26  13% of them — roughly four a day — are serious enough to   27  a pilot to change course. The most common of the serious emergencies   28  heart trouble, strokes, and difficulty breathing.
　　Let’s face it: plane rides are   29 . For starters, cabin pressures at high altitudes are set at roughly      30  they would be if you lived at 5,000 to 8,000 feet above sea level. Most people can tolerate these pressures pretty   31 , but passengers with heart disease   32  experience chest pains as a result of the reduced amount of oxygen flowing through their blood.   33  common in-flight problem is deep venous thrombosis — the so-called economy class syndrome (综合症).   34  happens, don’t panic. Things are getting better on the in-flight-emergency front. Thanks to more recent legislation (立法), flights with at      35  one attendant are starting to install emergency medical kits to treat heart attacks.

完形填空（共20小题，每小题1.5分，满分30分）

阅读下面短文，从短文后各题所给的四个选项（A、B、C和D)中，可以填入空白处的最佳选项,并在答题卡上将该项涂黑。

Although my father wasn’t a doctor, he made his own brand of “house calls”. I followed him as he    46    a plate of my mother’s home cooking to an elderly man named Frank    47    all major holidays, and when Frank was    48   . As far as I know, their only    49    was that Frank was an occasional    50    at Dad’s small gas station. Frank’s home was a two-room house on the rough side of town with a rotten front porch(门廊) that you could fall through if you weren’t    51   . Through his caring    52   , my father was teaching me to be a doctor,    53    neither of us knew it at the time.

    When I was 13, my father    54    lung cancer. He brought home a    55    the doctor drew showing    56    his cancer was and told me that he was going to    57   .

    The big green oxygen tank with plastic tubing    58    a central feature of our living room next to his easy chair. Several months passed and his condition    59   . He asked me to    60     my mother when he was gone. He said, “I love you, son.” That night he died.

    When you’re 13 and your father dies, you have some    61    to make. You can use the circumstance as a (n)    62     for letting your behavior and grades go down the drain, or you can honor his memory and try to do something    63    with yourself. I    64    my energy on my school work and my goal of becoming a    65   .  .

1. A. lent      B. brought          C. bought           D. showed   

2. A. for           B. in                   C. at               D. on      

3. A. happy     B. well             C. sick         D. homesick     

4. A. function  B. connection           C. information      D. instruction  

5.A. patient        B. doctor               C. customer         D. passenger  

6. A. careful       B. strong               C. reasonable       D. punctual    

7. A. words     B. attitude         C. attention        D. appearance  

8.A. and        B. because          C. although     D. as      

9.A. developed  B. found                C. constructed      D. recovered   

10. A. photo        B. picture              C. report           D. film     

11. A. where        B. how              C. which            D. what    

12. A. rest     B. retire               C. die          D. leave     

13.A. decorated B. remained         C. equipped     D. became   

14. A. worsened B. decreased            C. increased        D. bettered   

15. A. take care of B. make friends with    C. make up for      D. look into  

16. A. mistakes B. friends              C. choices      D. changes    

17. A. reason       B. guide                C. cause            D. excuse     

18. A. positive     B. active               C. productive       D. motive    

19. A. attracted    B. consumed         C. focused      D. depended   

20. A. doctor     B. driver             C. teacher    D. nurse 

完形填空 （共20小题；每小题1分，满分20分）
阅读下面短文，从短文后各题所给的四个选项（A、B、C和D）中，可以填入空白处的最佳选项,并在答题卡上将该项涂黑。
Although my father wasn't a  doctor,  he  made  his  own  brand  of  "house  calls"． I followed him as he    36  a plate of my mother's home cooking to an elderly man named Frank    37   all major holidays, and when Frank was    38  ． As far as I know,  their  only    39   was that Frank was an occasional    40   at Dad's small gas station． Frank's home was a two-room house on the rough side of town with a rotten front porch（门廊） that you could fall through if you weren't    41  ． Through his caring    42  , my father was teaching me to be a doctor,    43   neither of us knew it at the time．
When I was 13, my father    44   lung cancer． He brought home a    45   the doctor drew showing    46   his cancer was and told me that he was going to    47  ．
The big green oxygen tank with plastic tubing    48    a central feature （特征） of our living  room next to his easy chair． Several months passed and his condition    49  ． He asked me to    50    my mother when he was gone． He said, "I love you, son．" That night he died．
When you're 13 and your father dies, you have some    51   to make． You can use the circumstance as a （n）    52    for letting your behavior and grades go down drain, or you can honor his memory and try to do something    53   with yourself． I    54   my energy on my school work and my goal of becoming a    55  ． ．