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قديم 08-06-2012, 05:10 AM   #30

أم يآسين

جامعي

 
تاريخ التسجيل: Feb 2012
التخصص: كيمياء
نوع الدراسة: ماجستير
المستوى: متخرج
الجنس: أنثى
المشاركات: 40
افتراضي رد: اوراق دورة ستيب في كليه دار الحكمه بتاريخ 16-5

بسم الله الرحمن الرحيم:

القطعه (1)
====
One of the most dangerous drugs for pregnant women to consume is
alcohol. Because alcohol is delivered quickly into the blood and passes
quickly into the tissues and membranes, the human fetus is particularly
vulnerable to its effects. In fact, the negative effects on a fetus are so
pronounced that babies born after exposure to alcohol are said to be
suffering from fetal alcohol syndrome.
As a pregnant woman drinks alcohol, the alcohol is passed into her
her bloodstream almost simultaneously. Moreover, because the bloodstream of the fetus is inextricably tied to that of the mother,
the alcohol passes directly into the bloodstream of the fetus as well.
And, what is more, the concentration of alcohol in the fetus is exactly
the same as in the mother.
For the mother, this concentration is not a problem because her liver
can remove one ounce of alcohol from her system per hour. However,
the fetus's liver is not completely developed (how developed it is
depends on its stage of development). The rate at which it is able
to eliminate the alcohol from the blood of the fetus is much slower.
Eventually, the alcohol will be returned to the mother's system by
passing across the placenta, but this process is slow. By the time
this takes place, major neurological damage may have already
occurred. Research has shown that as little as one drink of
alcohol can produce significant, irreversible damage to the fetus.
Babies born after exposure to alcohol generally exhibit facial
distortion, inability to concentrate, and difficulty in remembering.
Simply speaking, it is imperative that pregnant women avoid alcohol.

----


What is the main topic of this reading?
Women and drugs
The dangers of pregnancy
The fetus and alcohol
Drinking and the human body
Answer: C

In line 4 the word "its" refers to
the fetus
the blood
the tissue
the alcohol
Answer: D

In line 5, the word "pronounced" most closely means
evident
spoken
described
unfortunate
Answer: A

How much time can it be inferred that it takes alcohol to enter a woman's bloodstream after she takes a drink?
about one hour
a few seconds
several minutes
at least 24 hours
Answer: B

In line 9 the word "inextricably" most nearly means
unexplainedly
formerly
forcefully
inseparably
Answer: D

According to the passage, how does the concentration of alcohol in a fetus compare to that in the mother?
The concentration is more.
The concentration is less.
The concentration is equivalent.
The concentration cannot be measured.
Answer: C

It can be inferred that the development of a fetal liver depends on
how many months pregnant the mother is
how much alcohol the mother has consumed
how large the fetus is
how well the mother has taken care of the fetus
Answer: A

According to the passage, how is alcohol finally returned to the mother's system?
it is carried through the bloodstream
it is transferred across the placenta
it is expelled by the fetus's liver
it is not completely returned
Answer: B

Which one of the following was NOT mentioned as a sign of fetal alcohol syndrome?
disfigurement of the face
concentration difficulties
increased aggression
memory problems
Answer: C

At what place in the passage does the author discuss the quantity of alcohol necessary to produce negative results?
Lines 2-3
Lines 11-13
Lines 21-22
Lines 24-25
Answer: C

 

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