Which is the most famous sheep in the world? A sheep called Dolly. But why is Dolly _______?

That is because unlike other sheep, Dolly was not _______ in the usual manner. She is actually a ____ of her mother, like an identical twin.

We all have fathers and mothers. In fact, all the animals we know of have them too. A clone, _______, does not need to have both the parents.

Our body is made up of cells which have information to _______ their work in the form of DNA. This is called the genetic code. Every organism gets half of this _______ from the father and the other half from the mother.

We all have grown from a single cell which _______ these two parts of the DNA. It _______ millions of times to give rise to millions of cells which form our body. And each cell has a copy of all the genetic information needed by the _______. This means that each cell of our body has enough information to ________ other human beings like us.

In the ________ of cloning, the scientists extract（提取）the DNA from an animal cell and implant it into an egg cell taken from another animal. Before ________ it, the DNA of the recipient’s cell is ________.

This is how Dolly’s ________ began—from a single cell taken from the udder of her mother. The DNA in her mother’s cell was removed and ________ into the egg cell of another sheep. A few months later, Dolly was born and remained a ________ lamb, a clone of her mother— ________ a biological father.

It is ________ possible to clone humans as well. We might have clones of supermodels and great scientists. What if someone creates a clone of Hitler? Since it is ________, someone, somewhere must have attempted it already.

_____ we have learnt from the story of Jurassic Park, we might lose control over the situation after a point. Is there a disaster waiting to happen?

It may be difficult to understand non-verbal messages because different cultures have different expectations about eye contact, physical _________, etc.

Let’s consider eye contact. Children from many Latin American and Asian _________show respect by avoiding the glance of important persons. A teacher who’s_________with this, however, might consider the lack of eye contact as a sign of disrespect. For many American Indian children, _________a teacher in the eye and answering her question in front of the class is “showing off”.

Culture greatly_________attitudes towards physical contact, whether it’s a handshake, hug, or pat on the back. In Asia, female friends _________hold hands and men casually(随便地) hug one another as they walk down the street. Americans, however, may feel uncomfortable with such public behavior. In some Asian cultures, affectionately patting a(n) _________head is strictly taboo(禁忌的), _________it can be acceptable behavior between adults and young children.

How close should people stand to each other when they’re having a conversation? In areas of the Middle East and South America, people stand very close when _________. Europeans like to have __________distance between them, while some Africans __________even more space. You can create great discomfort by standing too close to another person. Not being __________of this can even prevent someone from understanding or __________the ideas you’re trying to get across.

To create a positive environment for communication, your non-verbal message must closely __________your verbal message. One way to do this is to carefully observe how children and families speak and behave around each other and with people they respect. This can __________clues about the true meaning of their non-verbal interactions.

A new study published in a British medical journal suggests obesity（肥胖）shortens life expectancy（预期寿命）. It has the _______ to reduce life expectancy by up to eight years and cut healthy life by 19 years _______ diabetes and cardiovascular disease.

The study _______ data from the US National Health and Nutrition Examination Survey to create a disease-simulation model, which was then used to estimate the _______ of developing diabetes and cardiovascular disease in adults of different body weight.

The researchers analyzed the _______ of overweight and obesity to years of life lost and healthy years of life lost in US adults of various ages between 20 and 79 years old, compared to people of _______ weight.

Overweight individuals were _______ to lose between zero and three years of life expectancy, _______ their age and gender. For obese individuals the years lost were between one and six years, _______ the very obese between one and eight years.

The study ________ shows that being overweight or obese is ________ with two to four times as many healthy life-years lost as total years of life lost. The highest ________ in healthy life-years were in young adults aged between 20 and 29, amounting to around 19 years for very obese men and women.

“The pattern is clear,” explained Dr. Steven Grover, lead author and professor at McGill University, Canada.

“The more an individual weighs and the younger their age, the greater the ________ on their health, as they have many years ________ them during which the increasing health risks associated with obesity can ________ impact their lives,” said the expert.

He ________ that, these calculations should ________ useful for obese individuals and health professionals to better ________ the problem, and the ________ of a healthier lifestyle, changes to diet and regular physical activity ________.