1hello everyone ,my name is A ,my topic is what are the diseases that are genetically determined than developed because of unhealthy lifestyle.as everybody know that leukemia[lʊ'kimɪə] is a seldom cured disease .all the people are afraid to be attacked by it. leukemia is a kind of polygenic [,pɔli'dʒenik] diseases,genetic [dʒə'nɛtɪk] defeat and radiation[,redɪ'eʃən]，drugs can spur the gene to change it’s state.not only leukemia,but also Malignant [mə'lɪgnənt] disease, endocrine ['ɛndəkrɪn] disease, autoimmune [,ɔtoɪ'mjʊn] disease have the characteristic that can be influenced by external environment such as unhealthy lifestyle.so don’t think ourself as gene-safety guies,we should take care of ourselfes and develop good habbits to safe oufself against such recurring [rɪ'kɝɪŋ] illness2 hello everyone ,my name is A ,my topic is what kind of person do you think you are,and what kind of life do you want to live?I believe that I don’t be clear what kind of person I am,my friend used to describe me as susceptible [sə'sɛptəbl], optimistic,brave humorous girl,maybe the gene of happiness comes from my parents and the environment I live in ,I am also a luck dog,somebody would give me a hand when I get trouble！all of you is my luck star!I used to dream i work in clean workplace and my co-workers are friendly,everyday I go to work with confidence and perform excellently.in holidays ,I wish traveling to many scenic['sɛnɪk] spots with my honey.i hope I can possess a healthy lifestyle and live to enjoy life!3 hello everyone ,my name is A ,my topic is do you believe that a person’s potentialities are limited by his genes?I don’t agree this opinion,Genes can give a person the initial character,but it doesn’t means the person keep the charater in his whole life,he will develop his potential along with his world view, experience in life .the potential is just like a mobilphone,some functions of the mobilephone is set in factory-fresh state but a lot of additional fuctions are researched and developed by the person who use it ,the person is the environment .so gene is only the part of potential but is not the determinant [dɪ'tɝmɪnənt].the potential is decided by how we choose the way that we belong.because we are thoughtful humanbeings4 hello everyone ,my name is A ,my topic is anything we can do to upgrade ourseves?I have four points to answer this question,first I consider confidence is the chief factor to upgrade ourseves,keeping confident means you give yourself endless power to fulfill your dream,second,giving yourself a regular and healthy lifestyle in order to keep mental health and physical healty. a saying says The body is revolution in capital. this can help you focus attention to your career.third.be kind to your co-workers and friends,because all the people around you is are your luck star ,they take new opinion and surprise to you,you will be lonely and helpless without them.fourth,keep serious about the work your engaged in,when you work please don’t distract your attention to other things . keep high efficient is a good way to improve ourself. and to chieve your goals?视频2、1 hello everyone ,my name is A，my topic is enagine that you were one of the passengers on a hijacked plan,what would you do? oh dear ,it is horrible to imagine I was countered by a hijack,if I encounter a hijack,the fisrt thing I do is keeping silence and cast about for ideas to delay the game.then I will catfootedly ['kæt,futid]悄悄地dial 110 to let the police to know what is going on.next I will listen to the bandit’s words and give all my money to the bandits and go along with the crowd waiting the policemen to rescue us frightened birds.in the process ,I guess nothing is more important than guarding my life,the worst way is do something like a egg into stone and like a panic sheep poking it’s nose everywhere.thankyou2 hello everyone ,my name is A，my topic is was there somebody or something om the incident that makes you moved? ,if I encounter a hijack,the fisrt thing I do is keeping silence and cast about for ideas to delay the game.then I will catfootedly ['kæt,futid]悄悄地dial 110 to let the police to know what is going on.next I will listen to the bandit’s words and give all my money to the bandits and go along with the crowd waiting the policemen to rescue us frightened birds.3 hello everyone ,my name is A，my topic is in your opinion,what’s the meaning of “god helps those who help themselves”.may be myself is my own god,,视频31 hello everyone ,my name is A，my topic is”to what extent do you think your life and work depends on a computer?”I usually sit in front of the computer all day long,I feel it so inconvenient to work and live without the help of computer.before I go to someplace ,I need to check the bus route on the computer.before I write some dates ,I would check some literatue on computer.before I get receptional activities.i would surf the internet to find fun places and look at how people value them.at the same time ,I am a otaku girl,so most of my necessities are bought on the puter is also a tools to get contact with my friends and relatives.it bring the world together as a whole.although it so convenient for study and life ,it doesn’t mean I cann’t go on my life without it.2 hello everyone ,my name is A，my topic is”do you believe that ?”I don’t agree this idea,becauseI believe the power of human brain is endless,since humans can create computer and artificial intelligence,they must can control these human productions.humans can improve their fuctions and destroy their procedure set by humans.these productions only are tools to make the life of human more convenient forever,just as tools. the human brain has the ability of innovation, on the opposite ,computer just do the things assigned by human repeatedly.finally,in the real world, we should know how to use these productions to improve the conditions of the environment we live in rather than use them to harm others. that is all ,thank you!3 hello everyone ,my name is A ,my topic is about the advantages and disadvantages of computer.as you know computers are harmful as well as useful and helpful. The computers can make a great help for us in this high speed society. In the light of this statement, it is computers that can store documents for us which is essential for us, it is computers that can shorten the time in seeking useful information instead of looking for knowledge from a large sums of books and it is computers that can make it possible to comunicate with different people who are far away from you. In a word, we can't live nomally without computers in such a high-tech society。