Unit 3 A healthy life 单元练习题 Reading At his eighties, my grandad was still fit enough to cycle 20 kilometres in an afternoon, 1. _____ seems amazing to me and I think it’s due tothe 2. ______(health) life he lives. My granddad knew that I started smoking and now Iam finding it difficult to give it up. Therefore, he wrote a letter to give me some advice. He told me how easy it is to begin smoking and how tough it is 3. ______(stop), as he became addicted to cigarettes during adolescence as well. Indeed, there are three different ways that makes us become addicted. First, we can become physically addicted to nicotine. This means that after a while our body becomes accustomed to 4. ____(have) nicotine in it and we will feel bad-tempered and even in pain. In addition, we become addicted through habit. That’s because people begin to do it automatically if they do the same thing over and over again. Lastly, we become mentally addicted. Smokers believe they are5. _____(happy) and more relaxed after having a cigarette, 6._____they began to think that they could only feel good when they smoked. Smoking has a harmful effect 7. ____ our heart and lungs. What’s worse, it was more difficult for smoking couples to become pregnant. Their babies may have a smaller birth weight or even be 8. ______ (normal) in some way. 9. ____ we seldom know is that the cigarette smoke could affect the health of non-smokers. However, according to my gradad, what he did know was that his girlfriend thought he smelt terribleandthat she wouldn't go out with him again 10. ______ he stopped.All in all, smoking does harm to our bodies, therefore it’s strongly recommended smokers quit smoking.