Section A Welcome to the unit & Reading
I. 短文填空
请根据短文内容及所给首字母提示，补全所缺单词。
Nothing really prepared the world for the 1997 (1) a______ that a group of Scottish scientists had created a (2)c______ sheep named Dol ly. Nowadays many people believe that within a few (3) d______, there will be another (4) s______—the first cloned human. Scientists in South Korea have already created human embryonic stem cells through cloning.
Until now, the idea of human cloning has only been possible through movie magic, but the natural progression of science is making human cloning a real (5) p______. Some countries have made laws (6) b______ cloning, but it is still legal in many countries.
There is no federal law forbidding cloning in the United States, but several states hav e passed their own laws to ban the (7) p______. In Japan, human cloning is a (8) c______ _ for which on e will be punished by up to 10 years in prison. England has allowed cloning human embryos but passed a law to ban total human cloning.
Ian Wilmut, one of the co-creators of Dolly, has even said that human cloning projects would be cr iminally irresponsible. Cloning technology is still in its early (9) s_______, and nearly 98 percent of cloning efforts end in (10) f_______.
