第二节 完形填空(共20小题，每小题1.5分，满分30分)
Have
you imagined that you could be cloned like Dolly the sheep in the
not-too-distant future?
The
news that a human embryo(胚胎) has been 16 cloned
for the first time has caused mixed reactions.
The
17 was carried out by scientists
from the Advanced Cell Technology(ACT), in Massachusetts, US. The group 18 the
news on November 25.
This
is 19 human
being. A clone is alive, it walks, it breathes, said Jamie Grifo,
a(n) 20 on
the study of cloning at New York University School of Medicine.
“This is a set of
cells in a lab that will be used to 21 someone’s life.”
Such
research could lead to treatments for 22 such as
heart disease, AIDS and even cancer, 23 scientists.
Despite
high hopes from other scientists, the news raised concerns immediately from
religious(宗教的) and political leaders. Several 24 in the US do not
allow human cloning. President George W. Bush also made it clear that he is 25 any type of human cloning. However, the
scientists at ACT said they have no interest at present in 26
an early embryo into 27
.
Animals
have been cloned repeatedly since Dolly the sheep 28 in
1997. and there were no real technical 29 to
stand in the way of scientists making a cloned human embryo.
This
time the research group used tradition cloning technology with a human 30 .
31 it was given DNA
from an adult cell, the egg began to 32 .
33
it
was stopped from becoming a baby-at stage in which it was 34 a
ball of cells.
The
35 technology
has been used to clone sheep, cattle and monkeys.
16.
A. in failure B.
never C.
successfully D.
not
17.
A. research B.
report C.
works D.
task
18.
A. made known B. made C.
said D.
had
19.
A. a cloned B.
a man-made C.
a D.
not a cloned
20.
A. worker B.
head C.
expert D.
assistant
21.
A. save B.
rescue C.
cure D.
treat
22.
A. patients B.
health C.
diseases D.
things
23.
A. according to B.
including C.
besides D.
argued
24.
A. countries B.
nations C.
peoples D.
states
25.
A. for B.
against C.
researching for D.
praising
26.
A. developing B.
building C.
inventing D.
discovering
27.
A. a baby B.
a man C.
woman D.
a white man
28.
A. died B.
appeared C.
turned up D.
was no more
29.
A. questions B.
affairs C.
business D.
problems
30.
A. egg B.
bless C.
meat D.
cell
31.
A. Before B.
After C.
While D.
And
32.
A. grow B.
die C.
change D.
grow up
33.
A. And B.
But C.
However D.
Yet
34.
A. yet B.
still C.
not D.
/
35.
A. different B.
usual C.
ordinary D.
same