C. increases the most
                        
   D. increases
the least
4.  Which of the following is NOT a function of
the placenta?


       
A. Removing waste products from the fetus.


       
B. Supplying the fetus with oxygen and nutrients.


       
C. Protecting the mother against breast cancer.


       
D. Secreting hormones so as to continue pregnancy.
5.  It seems that Cohn is _____ of finding out
the exact mechanisms at work.


       
A. confident
                                    
   B. proud


       
C. sorry
                                   
       D.
afraid
 
Malnutrition
1.  What is the cause of much of the sickness
and death?
 
      A.
Certain diseases.  
                         
B. Malnutrition.
 
      C.
Infections.        
                       
D. Accidents.
2.  What is the writer’s attitude toward the
serious situation?
 
      A.
It is
strange.        
                      
B. It is acceptable.
  C. We should
act.        
                     
D. We can only wait.
3.  How many countries have made plans of
action for nutrition?
  A. 98.
                                     
         
B.
41.      
             
C.
139.      
                                       
D. 57.
4.  Which of the following is NOT the harm of
lacking iron?
 
      A.
Anemia.       
                          
B. Impaired intellectual development.


      
 C. Traffic
accidents.        
                  
D. Reduced work capacity.
5.  Which of the following is NOT mentioned as
a remedy for iron deficiency?


      
 A. Eating iron-rich foods.
                
    B.
Avoiding drinking tea with meals.
 
      C.
Drinking coffee soon after meals.
  
    D.
Eating foods of animal origin.
 
Kidney Disease and
Heart Disease Spur Each Other
1.  How can one learn earlier whether he or she
suffer simmering kidney disease?
   
A  By cholesterol
checks.    
B  By urine and blood tests.
   
C  By keeping a close eye on one's kidneys.
D  By measuring the volume of Urine output.
2.  How many Americans suffer chronic kidney
disease according to an estimation?
   
A 
19,000,000.   
    
B 
400,000.    
C 
50,000.        
D  37,000.


3.      
How many Americans suffered end-stage kidneyfailure and required
dialysis or a transplant to survive twenty years ago according to
an estimation?
   
A 
400,000.        
B 
300,000.   
 C 
200.000.     
  D 
100,000.
4.  What did the Archives Of Internal Medicine
call for doctors caring for heart patients to do?
   
A  To examine their patients' heart function
carefully.
   
B  To have their patients' chests X-rayed
regularly.
   
C  To select volunteers from their patients for a
kidney screening.
   
D  To start rigorously checking out their
patients' kidneys
5.  Which of the following is NOT one of the
three markers of kidney function?
  
 A  Levels of the protein albumin
in the urine. 
B  Levels of the white blood cells in the
blood.
  
 C  The rate at which kidneys
filter blood. 
 D  Whether one is anemic or
not.
More about Alzheimer’s
Disease
1.  The newly developed skin tests may be used
in the future is to allow doctors to


      
 A. cure those with Alzheimer’s
disease. 
B. discover the cause of Alzheimer’s disease.
 
      C.
predict who might get Alzheimer’s disease.
D. find the consequence of Alzheimer’s disease.
2.  The passage indicates that Alzheimer’s is a
disease


      
 A. common to people, old and young.
                    
  B. not costly to be cured.
   
    C.
easy to be handled.
                                    
  D. not easy to be
diagnosed.
3.  Which of the following statements about the
Alzheimer’s disease is NOT true?


      
 A. It was so named because Aloes Alzheimer first
described it.
 
      B.
It is the greatest cause of mental deterioration in older
people.
 
      C.
It can destroy memory gradually and eventually cause death.
 
      D.
There are many ways to deal with and cure the disease now.
4.  Which of the following about the
relationship between Alzheimer’s and dementia is true?


      
 A. Dementia is one of the signs of
Alzheimer’s   
B. Alzheimer’s is one of the causes of dementia.
  C. They are two completely different
diseases.   
D. They are similar defects of the human brain.
5.  The last paragraph implies that the
diagnostic test


      
 A. will not be as promising as others.
       
B. is a very important development.


      
 C. may not be proven valid smoothly.
       
D. will surely be disappointing in the end.
DNA
Fingerprinting
1.  According to the essay, we can find
chromosomes
  A. in a
fish.    
                                    
  B. in a tree.
 C. in a
sheep.    
                                         
  D. in a rock.
2.  DNA fingerprinting is more often used
for


      
 A. obtaining samples of chromosomes.
B. providing evidence in court investigations.
  C. proving the horse to be a mammal.
D. printing books about biology.
3.  When your brother looks exactly like you,
your complete DNA may be
 
      A.
exactly like
his.       
                     
  B. totally different from
his.
  C.
unique.      
                             
  D. lost.
4.  Some people believe that using a DNA
fingerprint may not be so reliable because
 
      A.
the accuracy of DNA fingerprinting has been challenged.
 
      B.
no private laboratory follows uniform testing standards or quality
controls.


      
 C. mistakes are possible when researchers explain
what have come of their tests.
 
     D.
suspects may not have enough money to provide their own DNA to
law-courts.
5.  This essay talks about DNA fingerprinting
concerning the following aspects EXCEPT
 
     A.
legal application of the method.


     
 B. the way to obtain a DNA sample.
 
     C.
work yet to be done about DNA fingerprinting.
 
     D.
possible danger in drawing a DNA sample from the human body.
 
Water
Pollution
1.  According to this passage, which of the
following statements is true of yearly water consumption?


      
 A. Most water is used for home cooking.
  
B. Most water is used for farming.
 
      C.
Cities use more water than rural areas.
D. America uses 8 percent of the world water resources.
2.  Paragraph 2 suggests all of the following
EXCEPT that


      
 A. fish may die because rivers may contain
industrial wastes.


      
 B. it may be dangerous to swim in a river because
the water may contain pesticides.
 
     C.
EPA is responsible for causing serious water pollution in
America.


     
 D. water pollution is rather serious in
America.
3.  Water runoff causes fish to die partly
because
  A. they are rushed into agricultural fields
and yards.
 
      B.
they are choked by the water body.
 
      C.
the poisonous algae have killed them.
 
      D.
the fast-growing algae have used up the oxygen in the water where
they live.
4.  An important idea of paragraph 4 is
that
 
      A.
cutting down too many trees may also cause water pollution.
 
      B.
erosion is caused by wind and rain alone.
 
      C.
there are no longer desirable fish in the world.


      
 D. trout and salmon usually spawn in silt.
5.  The main subject of the last paragraph
is
 
      A.
Fish as a Source of Protein.
                 
B. The Increasing World Oil Production.
C. Oil Spills and Pollution of the Sea.
             
D. A World-famous Oil Tanker.
 
 
Education of Students
with Vision Impairments
1.  Various adaptive aids are used to


      
 A. cure children of their vision impairments.
 
      B.
help children see more clearly and read books and so on.
 
      C.
teach children how to turn Braille into synthesized speech.
 
      D.
teach children how to use their remaining vision more
effectively.
2.  Large-print books are those books which
 
      A.
are printed with large pages.
                
  B. have large words in
them.
 
      C.
can be read by using a magnifier.
         
  D. can be read with the aid of
machines.
3.  Many blind students like to listen to books
because


    
  A. these books can talk by
themselves.
B. the synthesized speech is very interesting.


     
 C. this can save time.
D. these students are lazy.
4.  “Orientation and mobility training” is
meant to teach blind and partially sighted children
 
     A.
how to understand part of their education.
            
  
B. how to use a cane.


     
 C. how to move around without other people’s
help. 
D. how to help other people to travel independently.
5.  It may be good for children with vision
impairments to live in special schools because these schools


     
 A. can save the trouble of their coming from and
going back homes.
 
     B.
are built of nice wooden boards and so are clean and
comfortable.
 
     C.
have educational programs for the blind.