Have you ever imagined that you could be cloned(克隆) 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(反应).
The
17 was carried out by scientists from the Advanced Cell Technology Inc(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 treatment 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 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 .
Animal 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 traditional 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 a stage in which it was
34 a ball of cells. The
35 technology has been used to clone sheep , cattle and monkeys.
| 小题1: | | A．in failure | B．never | C．successfully | D．not |
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| 小题2: | | A．research | B．report | C．works | D．task |
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小题3:
| A．made known | B．made | C．said | D．had |
| 小题4: | | A．a cloned | B．a man-made | C．a | D．not a cloned |
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| 小题5: | | A．worker | B．head | C．expert | D．assistant |
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| 小题6: | | A．save | B．rescue | C．cure | D．treat |
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小题7:
| A．patients | B．health | C．diseases | D．things |
| 小题8: | | A．according to | B．including | C．besides | D．argued |
|
| 小题9: | | A．countries | B．nations | C．peoples | D．states |
|
| 小题10: | | A．for | B．against | C．researching for | D．praising |
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小题11:
| A．developing | B．building | C．inventing | D．discovering |
小题12:
| A．a baby | B．a man | C．a woman | D．a white man |
| 小题13: | | A．died | B．appeared | C．turned up | D．was no more |
|
小题14:
| A．questions | B．affairs | C．business | D．problems |
| 小题15: | | A．egg | B．bless | C．meat | D．cell |
|
| 小题16: | | A．Before | B．After | C．While | D．And |
|
| 小题17: | | A．grow | B．die | C．change | D．grow up |
|
| 小题18: | | A．And | B．But | C．However | D．Yet |
|
小题20:
| A．different | B．usual | C．ordinary | D．same |
