用户:（董宗玮）/工作区2

词语

• chew your food thoroughly and swallow it slowly (细嚼慢咽)
• an all-you-can-eat restaurant (吃到饱餐厅)
• toss and turn (翻来覆去)
• too slow to meet a pressing need (缓不济急)

句子

• Safety is the first priority. (安全至上)
• Actions speak louder than words. (坐而言，不如起而行；行动胜于空谈)
• People do not know the value of health till they lose it. (失去健康，方知健康的可贵)
• Only when you lose health will you realize its important. (失去健康，方知健康的重要)
• We can do no great thing, only small things with great love. (我们做不了什么伟大的事，只能以伟大的爱来做小事)
• No act of kindness, however small, is ever wasted. (善意的行为，无论多么微不足道，都不会白费)
• When you're good to others, you are best to yourself. (我们善待他人，即是最善待自己)
• We live in a wonderful world that is full of beauty, charm, and adventure. There is no end to the adventures that we can have if only we seek them with our eyes open. (我们生活在充满美、魅力及冒险的奇妙世界。只要我们打开双眼去寻找，便有永无止境的探险)
• Reading broadens the mind. (阅读能让心智成长)
• Why do we look at ourselves in the mirror and see ugly instead of valuable? (为什么我们镜中看到的自己老是丑陋的，而不是有价值的呢？)
• It is a beautiful thing when a career and a passion come together. (我们的职业和热情能结合在一起，将是一件美好的事)
• Do what you love, and love what you do. (一生做其所爱，也爱其所做)
• Do what you love, and you will never have to work a day in your life. (因为做其所爱，则一生无一日必须工作)
• Health is the foundation of everything in life. (健康是生活中一切的根本)
• With love in your heart, you can see beauty in everything. (心中有爱，万事皆美)
• Nature selects, the fittest survives. (物竞天择，适者生存)
• Man proposes but God disposes. (谋事在人，成事在天)
• You can't do a kindness too soon, for you nerve know how soon it will be too late. (行善不会行之过早，因为你不知道何时将为之已晚)
• Too often we underestimate the power of a touch, a smile, a kind word, a listening ear, an honest compliment, or the smallest act of caring, all of which have the potential to turn a life around. (我们太常低估了一次触摸、一个微笑、一个善意的字眼、倾听的耳、一句真诚的赞美或者最微小的关怀行动，所有的这些都有可能改变一个生命)
• Break things down into small pieces. (化整为零)
• Education is not the filling of a pail, but the lightening of a fire. (教育不是注满一桶水，而是点燃一把火)
• The beautiful thing about learning is that no one can take it away from you. (学习的美妙之处在于没有人可以从你身上将它取走)
• You can teach a student a lesson for a day, but if you can teach him to learn by creating curiosity, he will continue the learning process as long as he lives. (你可以每天教导学生一课，但是如果你以引发他的好奇心教导他，他将会终生学习)
• In nature, noting is perfect and everything is perfect. Trees can be contorted, bent in weird ways, and they're still beautiful. (自然界，无一物是完美的，而每样事物也具完美性。树会被扭弯，弯成七形八怪，然而他们依然美丽存在着)
• A man doesn't plant a tree for himself. He plants it for posterity. (人类种树并不是为自己而种，而是为子子孙孙而种植)
• All our dreams can come true, if we have the courage to pursue them. (如果我们有勇气追梦，所有的梦想都能成真)
• Education is the key to success in life, and teachers make a lasting impact in the lives of their students. (教育是人生成功之钥，教师对学生一生的影响恒久远)
• All students can learn and succeed, but not in the same day, in the same way. (所有的学生都能学习并获成功，但是却不是在同一天里或是用同样的方式)

理化

1.体积莫耳浓度=溶质莫耳数/溶液体积（升）
2.溶质莫耳数=溶质质量/溶质分子量=溶质粒子数目/6x10的23次方=体积莫耳浓度x溶液体积
3.稀释前莫耳浓度x稀释前溶液体积=稀释后莫耳浓度x稀释后溶液体积
4.稀释后莫耳浓度=稀释前莫耳浓度x（稀释前溶液体积/稀释后溶液体积）
5.任何水溶液在25°C时，$\left[H^{+}\right]\times \left[OH^{-}\right]=10^{-14}\times M^{2}$。
6.酸碱中和公式 氢离子莫耳浓度=氢氧根莫耳浓度 =>酸性溶液莫耳数x酸性溶液化学式之氢离子个数=碱性溶液莫耳数x碱性溶液化学式之氢氧根个数

酸性溶液莫耳数=酸性溶液质量/酸性溶液分子量=酸性溶液粒子数目/6x10的23次方=酸性溶液体积莫耳浓度x酸性溶液体积

碱性溶液莫耳数=碱性溶液质量/碱性溶液分子量=碱性溶液粒子数目/6x10的23次方=碱性溶液体积莫耳浓度x碱性溶液体积

因此酸碱中和总共16个公式
7.体积莫耳浓度=（重量百分浓度x溶液密度x1000）/溶质分子量

国民中学二年级理化下学期康轩版第3章之所运用公式变化