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Watch the video clip and listen carefully．
Watch the video clip again and fill in the blanks．
Is your health yours？ Well， in a lot of ways， yeah！ Our health is a story about our bodies， our habits， and our choices． But like any good story， the more attention you pay， the more （1）____and interesting the story becomes． It turns out that the story of your health isn’t just about you． It’s actually about a bunch of other stuff， too． It’s the story of the social，economic， and environmental conditions that make up our lives． It’s the story of people collaborating across continents and over the course of generations to build a healthier world． It’s the story of a （2）____， social justice movements， and even the Internet！ Public health experts take all this into consideration to build a richly （3）____world that works to improve our health—sometimes in pretty cool and surprising ways！ Hi， I’m Vanessa Hill． And welcome to Crash Course Public Health！ I like to take an experimental approach to content exploring our health and well⁃being—like ___investigating why crystal healing exists， or creating a bedtime （4）____hotline． Over the years， I’ve made documentaries about topics like designer DNA， and what algorithms do to our attention and emotions． Though my biggest experiment to date was a Hollywood reality show about improving your sleep with the latest sleep techniques and technology． The comments on this show highlighted one thing—it’s really hard to actually change your behavior to be more healthy． Heaps of viewers asked questions like： How do I actually stop using my phone in bed？ Or how do I stop procrastinating my bedtime？ And I couldn’t answer them， because in all of the scientific literature there were no answers． And this bothered me． So， in what is an extremely unlikely career segue， I went from being the executive producer of a Hollywood reality to a sleep researcher． My research （5）____the best behavior change techniques for improving your sleep， and how we can better communicate with people about their health， which means less of me pretending to be a scientist on TV and more of me actually being a scientist in real life． It’s not the hottest take of all time， but I believe that everyone deserves the right to live their healthiest possible life． In fact， I believe that health is a （6）____． And that’s the public health （7）____！More specifically， public health is an approach to preventing disease，prolonging life， and promoting health for everyone． Public health experts do this work by looking at the big picture to （8）_____across entire populations． To do this， they （9）____with experts in tons of other fields， including sociology， statistics， politics， environmental science—and a lot more． But we often don’t notice public health at work around us．Because much like our own health， we’re usually better at noticing when public health isn’t working than when it is． But once you start to notice public health at work， it’s hard to stop noting all the places where it’s working． Over the next 10 episodes， we’re going to （10）____what public health is， who does public health work， and why thinking about it is so important！ We’re also going to deep dive into health equity to address some big questions about how things like identity and stigma interact with our health’ like， why is it that black women’s bodies are literally aging faster than white women’s bodies？ We’ll answer that question and more， and we’ll also do some travelling！ We’ll travel back to the Middle Ages when the English word “ health” first bubbled up， to a historic typhus outbreak in 19th century Silesia， to the fictional land of Vanessa⁃City．
Words for reference
Listen to the model dialogue and talk about the following questions with your partner．
M： Health is very important for our body． And healthy food plays a very important role in it． So， what do you think is a healthy diet？
W： A healthy diet should contain all the essential nutrients．
M： How could people eliminate food contamination nowadays？
W： The government should set strict rules and regulations to standardize the production of food and punish severely those violators．
M： Why does food contamination occur frequently these days？
W： Because the food manufacturers are so obsessed with making money that they lose the business ethics． They no longer take food safety as their priority．
M： Why do many people suffer from heart disease recently？
W： I suppose it is because the improved living conditions provide people with more refined grain and meat． Consequently， people have an excessive amount of fat which leads to heart disease．
M： What’s your eating habit？
W： I have a balanced diet and I always have meals in a regular way．
M： How do you keep fit？
W： I am not particular about food and I often do exercise as long as I have free time．
M： Do you have fast food very often？
W： No， I seldom eat fast food because it’s rich in fat． And I want to keep a slender shape．
M： What are the advantages of transgenic food？
W： Transgenic technology can increase the yield of the crops and give the crops such attributes as insect⁃resistance or drought⁃resistance．
M： What do you think of instant noodles？
W： On the one hand， it is easy to prepare and thus brings convenience to our busy life． On the other hand， it is harmful to our health since it contains preservatives．
Question 1 ： How do you keep fit？
Question 2 ： How do you keep a balanced diet in your daily life？