全国公共英语等级考试(Public English Test System，简称PETS)是由教育部考试中心设计并负责的全国性英语水平考试体系，面向社会大众。作为中、英两国政府的教育交流合作项目，在设计过程中，该考试体系得到了英国专家的技术支持。PETS考试共分五个级别:PETS1是初始级，其考试要求略高于初中毕业生的英语水平。PETS2是中下级，其考 ……

with our dogs. 北京第二实验小学 六(11)班 赵淳耀 ……

TUCHONGTUCHONGDo you have a pet? Many children like pets and even treat them like humans sometimes. They like to kiss or hug (拥抱) their pets. But this can make you sick, according to Daily Mail ……

EVER since the first cloned sheep there has been debate about cloning. Though we cannot foresee the long term effects of cloning, its achievements deeply move me. Some people are afraid that cloning ……

any member of our species.Instead of restricting or banning cloning, I propose that we adopt...EVER since scientists first began cloning experiments on simple organisms in the 1970s, ethicists ……

possibilities in the cloning world. Recently Chinese scientists have also successfully cloned mammals... of human cloning in February, saying it is contrary to humandignity(尊严). Supporters included the US ……

possibilities in the cloning world. Recently Chinese scientists have also successfully cloned mammals... of human cloning in February, saying it is contrary to humandignity(尊严). Supporters included the US ……

of cloning in our lives? What do you think of this technology? Is it good for human beings or can... that the experiment was hyped and called it a failure.The news put a spotlight on the field of cloning, from work ……

and new problems.Pets are not human beings even though our relationship to them has many of the same... as such will harm both them and us. We, and our pets, are more than a collection of genes. To fail ……

CHINA will continue to oppose human reproductive cloning, or cloning aimed at reproducing... developments are undergoing clinical trials now."This kind of cloning usage opens up prospects ……

to treat them as such will harm both them and us. We, and our pets, are more than a collection... cloning involves fewer of the moral (道德的) issues human cloning has. It is done to minimize (使最 ……

it up?One option being tried in China is cloning. According to Global Times, Chinese scientists have.... “In our tests, Kunxun has shown a good aptitude (天资) for sniffing, detecting (察觉) and adaptation ……

, keys and pens all carry germs (细菌), our smartphones get far dirtier. They touch a lot of stuff, including our hands and the inside of our pocket or purse. We take them almost everywhere: the bus ……

its whimsical name, the company has been working for more than four years on the cat cloning process... University in the US that led to the cloning of the first cat Carbon Copy in 2001.(5) The company ……

为保护“活化石”，中美专家首建大熊猫基因库。WILL our children still have the chance to see lovely giant pandas..., as their thick fur can be sold for a high price in the black market.Since the cloning of Dolly ……