However，others think cloning is likely to cause an unexpected____of genes．______，the appearance of human cloning will confuse the laws and morals．For example，if you saw the copy of yourself____，how can you describe your _____ at the same time? Do you Fun away in the____direction at once?

In my opinion，clone technology is _____to agriculture and medical science．But we should take it serionsly，____ when considering human cloning，or ____the society is made _____．

参考答案：

-、1．had 2．had not been 3．would not go

4．not be sent 5．should protect 6．1eft 7．would be

8．had studied；would have gone 9．were not；would not

10．were；would not allow 11．made；would not be 12．had thought

13．had known 14．met 15．were to

二、1．against 2．Recently 3．heated 4．be carried out 5．effective

6．endangered 7．variation 8．What'S more 9．again and again 10．emotion

　　11．opposite 12．beneficial 13．especially 14．eventually 15．Confused