26-08-2015, 11:55 PM
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عضو نشيط
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تاريخ التسجيل: Feb 2008
المشاركات: 132
معدل تقييم المستوى: 760
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هذي اسئلة قطعة البنسلين صراحة مااعرف الاجوبة صحيحة يمكن احد يفيدنا بالاجوبة
Why didn’t Fleming enter medical school until he was 21 years old?
A. He studied at home with his brother, who was a doctor.
B. He lived on a farm, a long distance from any university.
C. He had to work to earn money.
D. He stopped studying when he was 13.
We can understand from the Paragraph [2] that a vaccine _____.
A. is found in the blood
B. can stop people from getting a certain disease
C. is a substance that causes typhoid fever
D. is a kind of bacteriologist
In World War I, why did most wounded men die?
A. The wounds let bacteria enter their bodies.
B. The wounds allowed their blood to come out of their bodies.
C. There were no doctors to help the wounded men.
D. There were no vaccines at that time.
. We can understand from Paragraph [5] that germs are _____.
A. kinds of mould
B. bacteria which cause disease
C. bacteria which are dead
D. small plates
Why did Fleming grow germs?
A. To destroy them.
B. To study them.
C. To combine them with mould.
D. To sell them.
How is penicillin different from Penicillium notatum?
A. Penicillin can kill bacteria but Penicillium notatum can’t.
B. Unlike Penicillium notatum, penicillin is a fungus.
C. Penicillin is separated from Penicillium notatum.
D. Penicillin is a kind of mould whereas Penicillium notatum is a
fungus.
Why wasn’t penicillin given to people to save their lives as soon as
it was produced?
A. It was very expensive.
B. It couldn’t be isolated or prepared as a separate substance.
C. It was a powder.
D. Its effects were changeable.
Who developed a method to produce penicillin as a drug which
could be used to treat sick people?
A. Sir Almroth Wright
B. Dr. Alexander Fleming
C. Two biochemists
D. Doctors around the world
. About how many years passed between the discovery of the effects
of penicillin and the use of penicillin to prevent death?
A. one
B. four
C. twelve
D. twenty
Two advantages of penicillin are mentioned in the text. One
advantage is that it saves lives by killing harmful bacteria. What other
advantage is given?
A. It helped scientists discover similar *****.
B. It can also be used to kill viruses.
C. It is very cheap.
D. It comes from a very common mould.
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