文档介绍：2011 年英语 B 级考试试卷答案
一、单项选择题（说明：这是我同学给的）
1 How can we reduce the risk of cancer?
A cut in B cut down
nsible D sensitive
15 Are you positive that there’s been no mistake?
A rational B reasonable
C certain D bound
二、阅读判断。 阅读判断。
An Observation and an Explanation
It is worth looking at one or two aspects of the way a mother behaves towards
her baby.
The usual
fondling,
cuddling
and cleaning
require
little
comment, but the
position
in
which she holds the
baby against
her
body when resting
is rather
revealing.
Careful studi es have shown the fact that 80 percent of mothers hold their infants
in their left arms, ho lding them against the left side of their bodies. If asked
to
explain
the
significance
of
thi
s preference
most people reply
that
it
is
obviously
the result of the predominance of right -handedness in the population. By holding
the babies in their left arms, the mothers keep their dominant arm free for
manipulations.
But
a detailed
analysis
shows that
this
is
not t
he casE True,
there
is
a slight
difference
between right-handed
and left-handed
females 。 b
ut not
enough
to
provide
adequate
explanation.
It
emerges that 83 percent
of right-handed
mothers
hold
the
baby on the
left
side,
but
so do 78 percent
of
left-handed
mothers.
In
other
words, only 22 percent of the left-handed mothers have their dominant hands free
fo r actions. Clearly there must be some other, less obvious explanation.
The only other clue comes from the fact that the heart is on the side of the
mother’ s body. Could it be that the sound of her heartbeat is the vital factor?
And in what way? Thinking along these lines it was argued that perhaps during its
existence inside the bod y of the mother the unborn baby get used to th