The 21st century discoveries about the human brain and its functioning have showed the surprising fact that human abilities are not fixed at birth. In other words, what you are able to do with your life is not fixed when you are born. It is not all in the genes (基 因 ). It is not just nature: nurture (教育, 培育) plays an important part in the moulding (塑造) of what a person is, and what he/she can be.

    Brain plasticity (可塑性) or neuroplasticity (神经可塑性) refers to the amazing ability of the human brain to modify (修改) its structure and functions according to the changes within the body and/or in the outer environment.

    In his book „The Brain that Changes Itself‟ psychiatrist and psychoanalyst Norman Doidge, M.D., offers an introduction to the great scientists strongly supporting neuroplasticity and the people whose lives they've changed. The book describes real life stories of stroke( 中 风 ) patients learning to speak again, and the amazing story of a woman born with half a brain that restructured itself to work as a whole. It is a book that changes the way we think about our brain, its nature, and its potential (潜能).

    The genes we receive from our parents are finite (有限的), no doubt about that. However, our brain's ability to develop is infinite. New brain cells are being born all the time, and to keep them alive and growing, we have to stimulate (刺激) them.

    Here lies the promise of neuroplasticity in the moulding of children into adults who are capable of realizing their potential. For, genius is nothing but a human being who has realized his /her inborn potential! What Mozart, Einstein and da Vinci had was inborn potential plus (和，外加) the right environment.

    All geniuses started life in exactly the same way. They had parents who supported the development of their individual gifts and talents. They had the right environment and stimuli (刺激， 刺激物) that led to the best development of themselves.

    You can think about your child's gifts as the merging (融合的) colours of a rainbow. The possibilities are endless. All children are born with three natural abilities that provide them with the potential to think like a genius: the abilities to think, to learn and to develop their own individual way of thinking and learning.

    Can your child be a genius? Yes, he/she can be, if you give him/her the right environment, the right stimuli and the right guidance.

Anne and Joseph are talking about an interesting question. Why do some people change their names? There can be many reasons. Hanna changed her name to Anne because she thought it would be easier for people to remember. On the other hand , Joseph is thinking about changing his name to an unusual name because he wants to be different. 

People have a lot of reasons for changing their names. Film stars, singers, sportsmen and some famous people often  change their names because they want names that are not ordinary, or that have special sound. They chose the "new names " for themselves instead of the names their parents gave them when they were born. 

Some people have another reason for changing their names. They have moved to a new country and want to use a name that is usual there. For example, Li Kaiming changed his name to Ken Lee when he moved to the United States. He uses the name Ken athis job and at school. But with his family and Chinese friends, he uses Li Kaiming. For some people, using different names makes life easier in their new country. 

In many countries , a woman changes her family name to her husband's after she got married. But today, many women are keeping their own family name and not using their husband's. Sometimes, women use their own names in some situations and their husbands' in other situations. And some use both their own names and their husbands'. 

There are two main ways of travelling: travelling in a group and travelling by oneself. Both of them have their own good point s and1 points. Most people2 travelling in a group. I also think it is the best way.

Firstly, you will3 friendship when travelling in a group. Usually a tour group has 20 to 40 people. These people eat and sleep in the4 hotel. It is5 for you to make some new friends during the trip.

Secondly, 6 is planned by the travel agency(旅行社). You don't have to7 about buying tickets, finding hotels, deciding where to live and so on.

Thirdly, you can8 more about the places of interest from a tour guide, and won't miss any important9 . Travelling in a group can save your time and money on information searching.

In a word, travelling in a group is the10 way for me. What is your idea?

 Going clothes shopping can be difficult. Sometimes you go to a store with an idea in mind, but once you get there, you have no idea where to start. Why? {#blank#}1{#/blank#} Of course, you may feel lost when you choose.

 It's easier for you to make choosing good clothes if you have an idea. {#blank#}2{#/blank#} Clothing that fits should be comfortable.

 If you' re planning on losing weight, don't buy clothes that you think you' ll wear in a few months. Maybe it is just a plan or a dream and it never happens.{#blank#}3{#/blank#}

You may want to keep up with new styles, but if it isn't nice on you, don't wear it.{#blank#}4{#/blank#}

 Remember that the most important thing about choosing clothes is finding a look that you like, not someone else. {#blank#}5{#/blank#}

In some cities, we can see more and more people riding sharing- bikes. It's very convenient to use the bikes if you have a smart phone. First, you have to download such an APP on your smart phone. Then, what you need to do is to find a nearest bike through the  APP, scan the QR code on the bike or connect your phone with the bike over a Bluetooth   wireless connection. You will find the bike can be unlocked itself easily. Then, you can enjoy your trip. What's more, the greatest advantage of bike- sharing is that you can easily find one and never worry about where to park it. The cost of riding depends on the time that you spend. Normally, every hour you ride, you need to pay one yuan. It doesn't cost so much, does it?

At the same time, some people park the bikes in their own homes, Besides, some people don't value the bikes. Now service companies are trying to solve the problems like being stolen.

Technology and science have changed our social lifestyles. We have to say bike- sharing brings us more convenience without doubt, And we also hope that people can not only enjoy it but also put it to good use.