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  36  cloned for the first time has caused mixed reactions(反应)．
The  37 was carried out by scientists from the Advanced Cell Technology Inc(ACT)，in Massachusetts，US. The group  38  the news on November 25.
This is not a cloned human being. “A  39 is alive，it walks，it breathes，”said Jamie Grifo，an expert 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  40  someone's life.”
Such research could lead to treatment for  41 such as heart disease，AIDS and even cancer， 42  scientists.
Despite high hopes from other scientists，the news  43  concerns immediately from religious and political leaders. Several  44 in the US do not allow human cloning. President George W．Bush also made it clear that he is  45  any type of human cloning. However，the  46  at ACT said they have no interest at present in developing an early embryo into  47 .
Animals have been cloned repeatedly since Dolly，the sheep,  48  in 1997.And there were no real technical  49  to stand in the way of scientists making a cloned human embryo.
This time the research group used traditional cloning technology with a human  50 . 51  it was given DNA from an adult cell，the egg began to  52 .  53  it was stopped from becoming a baby—at a stage in which it was  54  a ball of cells. The  55  technology has been used to clone sheep，cattle and monkeys.

A．in failure B．never C．successfully D．not

A．research B．report C．works D．task

A．made known B．made C．said D．had

A．cell B．person C．man D．clone (克隆人)

A．save B．kill C．cure D．treat

A．patients B．health C．diseases D．things

A．according to B．including C．besides D．argued

A．beat B．lost C．raised D．missed

A．countries B．nations C．peoples D．states

A．for B．against C．researching for D．praising

A．scientists B．president C．people D．research

A．a baby B．a man C．a woman D．a white man

A．lived B．appeared C．turned D．was no more

A．questions B．affairs C．business D．problems

A．egg B．bless C．meat D．cell

A．Before B．After C．While D．And

A．grow B．die C．change D．appear

A．And B．But C．However D．Yet

A．yet B．still C．not D．/

A．different B．usual C．ordinary D．same