Chinese scientists recently have produced two monkeys with the same gene, Zhong Zhong and Hua Hua, using the same technique that gave us Dolly the sheep. These monkeys are not actually the first primates（灵长类）to be cloned. Another one named Tetra was produced in the late 1990s by embryo（胚胎）splitting, the division of an early-stage embryo into two or four separate cells to make clones. By contrast, they were each made by replacing an egg cell nucleus（原子核）with DNA from a differentiated body cell. This Dolly method, known as somatic cell nuclear transfer（SCNT）, can create more clones and allows researchers greater control over the edits they make to the DNA.

Success came from adopting several new techniques. These included a new type of microscopy to better view the cells during handling or using several materials that encourage cell reprogramming, which hadn’t been tried before on primates. Still, the research process proved difficult, and many attempts by the team failed. Just two healthy baby monkeys born from more than 60 tested mothers. This leads to many researchers’ pouring water on the idea that the team’s results bring scientists closer to cloning humans. They thought this work is not a stepping stone to establishing methods for obtaining live born human clones. Instead, this clearly remains a very foolish thing to attempt, it would be far too inefficient, far too unsafe, and it is also pointless.

But the scientists involved emphasize that this is not their goal. There is now no barrier for cloning primate species, thus cloning humans is closer to reality. However, their research purpose is entirely for producing non-human primate models for human diseases; they absolutely have no intention, and society will not permit this work to be extended to humans. Despite limitations, they treat this breakthrough a novel model system for scientists studying human biology and disease.

Children find meanings in their old family tales.

When Stephen Guyer's three children were growing up，he told them stories about how his grandfather，a banker，_____ all in the 1930s，but did not lose sight of what he valued most. In one of the _____ times when his strong-minded grandfather was nearly _____，he loaded（装载）his family into a car. And he _____ them to see family members in Canada with a _____，“there are more important things in life than money”.

The _____ took on a new meaning recently when Mr. Guyer moved to a _____ house from a more expensive and comfortable one. He was _____ that his children，a daughter，15，and twins，22，would be upset. To his surprise，they weren't. _____，their reaction echoed（类似）their great-grandfather's. What they ______ was how warm the people were in the house and how ______ their heart was accessible.

Many parents are finding family stories have surprising power to ______ children through hard times. Storytelling experts say the phenomenon reflects a growing ______ in telling tales，evidenced by a rise in storytelling events and festivals.

A university ______ of 65 families with children aged from 14 to 16 found kids' ability to ______ parents' stories was linked to a lower rate of anger and anxiety.

The ______ is telling the stories in a way children can ______ them. We're not talking here about the kind of story that ______，“When I was a kid，I walked to school every day uphill，barefoot in the snow.”Instead，we should choose a story suited to the child's ______，and make eye contact（接触）to create“a personal experience”. We don't have to tell children what they should ______ from the story and what the moral is.

Several days ago when I went shopping in New York I saw an old woman crossed the street with a heavy bag in her hand. At that moment，the American boy was standing nearby. I thought the boy will help the old lady，and to my surprise，he did nothing. This seemed very strangely to me.

Later my roommate explained the boy's behaviors to me. Americans place emphasis to independence. If the boy had offered to help her，the old woman would have felt that she had considered old and weak. What the boy did it allowed her to keep her independence, that was more important to her than the discomfort of carrying a heavy load.