题目内容：

 

Not long ago, making a baby boy or a baby girl was pretty much a hit-or-miss affair, but not any more now. Parents who have accuracy, as Monique and Scott Collins learned to their delight two years ago, when their long-wished-for daughter Jessica was born after genetic pre-screening at a fertility clinic in Fairfax, Virginia.

And baby Jessica is just the beginning. Within a decade or two, it may be possible to screen kids almost before pregnancy(怀孕) , such as how tall they are likely to be, what baby type they will have, their hair and eye color, and even their IQ and personality types.

In fact , if gene therapy lives up to its promise, parents may some day be able to go beyond weeding out undesirable trials and start actually inserting the genes they want, perhaps even genes that have been crafted in a lab. Parents may be going to fertility clinics and picking from a list of choices the way car buyers order air conditioning or wheels. “It’s the most exciting shopping” experience designing your baby.” says biotechnology（生物工艺学） critic, Jeremy Rifkin, who is concerned about the prospect（前景）. “In a society that is used  to cosmetic surgery（整形手术）, this is not a big step.”

The prospect of designer babies, like many of the ethical（伦理）problems caused by the genetic revolution, is causing the doctors, ethicists, religious leaders and politicians of the whole world to start a fierce conflict , who are trying to decide how they feel about it all.

They still have a bit of time. Apart from gender, the only trails that can now be identified at the earliest stages of development are about a dozen of the most serious genetic diseases. Gene therapy in embryos（胚胎） is at least a few years away. And the gene or combination of genes responsible for most of our physical and mental attributes hasn’t even been identified yet, so the idea of engineering genes in or out is of no practical meaning.

1.What is gene therapy supposed to do if it lives up to its promise?

    A．Screen a baby for sex.           B． Choose a baby’ s eve color.

    C． Implant genes.                  D． Identify genetic disorder.

2.According to the passage , what scientists can do with the genetic testing technology now is to_______.

    A．screen a baby’s sex             B．screen babies for desirable qualities

    C．put in genes parents want        D．craft genes in a lab

3.What can best describe Jeremy Rifkin’s attitude toward designing babies through gene therapy?

    A．Strongly supportive              B． Warmly welcome.    

    C．Uninterested.                    D． Critical.

4.From the passage we know that         .

    A．designing babies is purely scientific not to cause ethical problems

    B．designing babies may bring people a lot of ethical concerns

    C．scientists are now working against time to design babies

    D． people are concerned about the harm clone to science by designing babies