阅读理解填词。

　　Teenagers are always stressed out now．They are often too b　　1　　 to think about their diets and exercise．The truth is, healthy eating, a　　2　　 with regular exercise．Is the only way to k　　3　　 fit．

　　During your teenage years, it is important to give your body the e　　4　　 it needs．Teenager girls need about 2,200 calories(卡路里)a day and boys need a bit more．Doctors suggest 2,800 calories for teenage boys．50% of your calories should come from rice, bread, v　　5　　 and fruit．You also need to drink a lot of water, six to eight g　　6　　 a day．Enough water will improve your skin and give you healthy hair．

　　Exercise can help to make you look good, feel good and be healthy．Scientists suggest that teenagers should spend at least 30 minutes e　　7　　 every day．

　　When you exercise, your body p　　8　　 something．It makes you feel r　　9　　 and energetic．It can even help you sleep better at night and let you pay more a　　10　　 when you study．

　　Let's eat healthily and take regular exercise．

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用方框中所给单词或短语的适当形式填空，使短文通顺、正确连贯，每个单词或短语限用一次。

　　There are many ways to save the environment if you would like．In this passage, you can find some ways．

　　Plant more trees．Choose a right 　　1　　 near your house or workplace．　　2　　 there's any rule stopping you growing trees in that area, go ahead and grow trees．Plant a tree every month and 　　3　　 your friends and classmates to join you．Have more and more trees 　　4　　 and there will come a day when you have green land thanks to your hard work．

　　Walk more and drive less．Choose to walk 　　5　　 drive your car．Walk or ride a bicycle to work if it's not very far．Not only cycling but walking is good exercise．And each time you avoid using your car, you’re doing something 　　6　　 to cut down air pollution．You are saving fuel, saving money and keeping fit as well．

　　Save water．Water is very important for living things．It's 　　7　　 who use and pollute it．The simplest way to save water is turning 　　8　　 water taps after use．When you visit a beach, make sure that you don't throw waste around．Do not pollute rivers 　　9　　 dropping garbage or other waste．Water is so precious, so we 　　10　　 waste or pollute it．