题目

化学与生活息息相关，请根据生活常识回答下列有关问题 （1） 牡丹区某学校每个班级配发了含氯消毒液和75%的酒精溶液。含氯消毒液其有效成分为次氯酸(HClO)，次氯酸中氯元素的化合价为。将75mL酒精和25mL水混合时，发现体积小于100mL，这是因为。 （2） 超超的奶奶骨质疏松，医生建议奶奶服用含葡萄糖酸钙[Ca(C6H11O7)2]的补钙剂，葡萄糖酸钙有种元素组成。 （3） 用洗洁精清洗油污，是利用了洗洁精的作用以某同学冼衣服；手抓洗衣 任务型阅读。请认真阅读下列短文，并根据所读内容在文章后表格中的空格里填入最恰当的单词。注意：每空只填1个单词。                                                           Five tips to deal with stress      Stress, the biggest enemy of the modern world! It kidnaps our peace of mind, tortures our evenings, when we return home from work and murders those beautiful moments. But like all enemies, this enemy can also be got rid of! Put your body in motion.      Moving from the chair to the couch while watching TV is not being physically active! Physical activity is one of the most important ways to keep stress away by clearing your head and lifting your spirits. Physical activity also increases endorphin levels-the natural "feel-good" chemicals. Laugh      Some say that laughter is the best medicine-well, in many cases, it is! Did you know that it takes 15 facial muscles to laugh? Lots of laughing can make you feel good-and, that good feeling can stay with you even after the laughter stops. So, head off stress with regular doses of laughter by watching a funny movie or cartoons, reading a joke book, or even make up your own riddles…laughter can make you feel like a new person!      Everyone has those days when they do something really silly or stupid. Instead of getting upset with yourself, laugh out loud! No one's perfect! Life should be about having fun. So, lighten up! Have fun with friends.      Being with people you like is always a good way to get rid of your stress. Get a group together to go tothe movies or play a board game-or just hang out and talk. Friends can help you work through your problemsand let you see the brighter side of things. Spill (发泄) to someone you trust.      Instead of keeping your feelings bottled up inside, talk to someone you trust or respect about what's bothering you. It could be a friend, a parent, someone in your family, or a teacher. Talking out your problems and seeing them from a different view might help you figure out ways to deal with them. Just remember, you don't have to go it alone! Lend a hand.      Get involved in an activity that helps others. It's almost impossible to feel stressed out when you're helpingsomeone else. It's also a great way to find out about yourself and the special qualities you never knew youhad! Signing up for a service project is a good idea, but helping others is as easy as saying hello, holding a door, or volunteering to keep a neighbor's pet. The feeling you will get from helping others is greater thanyou can imagine! In conclusion, remember, you're not alone-everyone has stresses in their lives…it's up to you to choose how to deal with them. Lead in We can get 1______ of stress 2______           1. Being 3______ active.     ● To keep stress away.     ● To 4______ endorphin levels 2. 5______ up and laugh.     ● To make you feel good.     ● To make you feel like a new person. 3. Hanging 6______ with friends.     ● To help you work through your problems.    ● To make you have a positive attitude towards things 4. Talking to someone you trust.     ● To help you figure out ways to deal with. 5. Taking part in an activity that is 7______ to others.     ● To find out about yourself.     ● To feel 8______ than you can imagine. Conclusion     ● Everyone in under heavy 9______, and you can choose 10______ to do with it.