2017-2018学年高中英语北师大版必修1文档：Unit 1 Section Ⅰ Warm-up ； Lesson 1 — Pre-reading Word版含答案.docVIP

1.Maintain (保持) a healthy weight Being overweight can significantly (显著地) increase your risk of developing cancer， heart disease and strokes (中风). If you are concerned about your weight， your GP should be able to provide you with information and support in finding a healthy weight for you. 2.Keep active Taking regular exercise is the key to keeping your weight down. Exercise doesn’t have to be hard work or be limited to the gym. Walking， swimming and even housework and gardening are all excellent forms of activities. Try to aim for 30 minutes a day of exercise that leaves you slightly out of breath but still able to hold a conversation. As your fitness increases， you will find that you have to work harder to become out of breath and this in turn will increase your fitness level. 3.Eat a balanced diet Making sure you eat a wide range of foods is another way of helping to keep your weight down as well as making sure you get the nutrients (营养物) you need. You should aim to eat at least five portions (一份) of fruit and vegetables each day and try to eat fresh products rather than processed foods. 4.Quit smoking Quitting smoking is one of the easiest ways to cut the risk of developing cancer. Smoking is a significant risk factor for cancer， and it is a direct cause of nine out of ten cases of lung cancer. This is because cigarettes contain approximately (大约) 4，000 compounds (混合物)， some of which are known to be carcinogenic (cancer-causing). Section_ⅠWarm-up Lesson 1 — Pre-reading [原文呈现] A Couch Potato Forty-three-year-old① Brian Blakey from Birmingham is sitting on his sofa and telling me about his perfect②day. “When I wake up③ I don’t get up④ immediately. I turn on⑤ the television and watch the children’s programmes and old movies until about half-past ten. Then I get up, go downstairs and switch on⑥ the TV in the living room. For lunch, I have biscuits and a glass of milk, and I watch the news. In the afternoon, I often watch another old film — they’re showing some go