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Positive(积极的) people are usually happy. They often have a lot of friends. When they have a problem, they try to change the problem i【小题1】 a chance. They believe things always work out. But can positive thinking really make someone’s life better? Many scientists are studying positive thinking. They are finding out some very interesting information.
Your Health
The Mayo Clinic is a famous medical organization in the United States. It studies many things, including positive thinking. Their research proves that positive thinking has many advantages. First, positive thinking s 【小题2】 good health. Positive people don’t worry about the bad events in life, so they stay healthy. Positive people are a 【小题3】 likely to exercise and eat healthy foods. Because of this, they don’t usually get sick and don’t have many health problems.
At work
Dr.Michael is a professor in Germany. His research shows that positive people do well in jobs. There are several reasons for this. Positive people are creative. They don’t expect o【小题4】 to help them with problems. They solve problems themselves. And positive people don’t give up. They keep trying to learn new things.
Becoming Positive
In the past, scientists thought attitude n 【小题5】 changed. Now, many psychologists think people can become more positive. There are many different ways to change. Here are some examples. First, think about good events in your life. At the end of a day, ask, “What good things happened to me today?”Think about these things for a few minutes. Second, find interestinga 【小题6】 to do. Laugh at a funny movie or read a good book. Finally, always try new things. For example, you can talk to people you don’t know or shop in a different store. Do different things every day.
A Good Life
Life can be d 【小题7】 sometimes. Don’t give up or be negative. Take action. Think about the future and make a plan. You can learn to be positive.
（1）科学研究发现纳米级的Cu2O可作为太阳光分解水的催化剂。
①在加热条件下用液态肼（N2H4）还原新制Cu（OH）2可制备纳米级Cu2O，同时放出N2。当收集的N2体积为3.36L（已换算为标准状况）时，可制备纳米级Cu2O的质量为 ；
②一定温度下，在2 L密闭容器中加入纳米级Cu2O并通入0.20 mol水蒸气，发生反应：
；测得20 min时O2的物质的量为0.0016 mol，则前20 min的反应速率v（H2O）= ；该温度下，反应的平衡常数表达式K= ；下图表示在t1时刻达到平衡后，只改变一个条件又达到平衡的不同时段内，H2的浓度随时间变化的情况，则t1时平衡的移动方向为 ，t2时改变的条件可能为 ；若以K1、K2、K3分别表示t1时刻起改变条件的三个时间段内的平衡常数，t3时刻没有加入或减少体系中的任何物质，则K1、K2、K3的关系为 ；（2）已知：
ΔH＝－293kJ·mol－1 
ΔH＝－221kJ·mol－1请写出用足量炭粉还原CuO（s）制备Cu2O（s）的热化学方程式 ；
（3）用电解法也可制备Cu2O。原理如右上图所示，则阳极电极反应可以表示为 。 查看习题详情和答案>>
要点提示：1. 乘车 (take the bus) 去桃河公园植树 (plant trees)。
2. 一些同学挖坑 (dig/dug holes), 一些……。
3. 竖起告示牌 (put up the board) 告诉市民爱护 (protect) 小树。
4. 拍照记录 (take photos to record) 此次绿色活动 (green action)。
查看习题详情和答案>>
为了积极响应全市共青团员“植绿爱绿护绿，为‘三城同创’做贡献”的倡议，你校在3月12日组织了春季植树活动。请你根据以下提示，写一篇英语日记来记录这次令人难忘的活动。（词数50个左右；文章的开头和结尾已给出，不计入总词数。注意正确使用时态。）
要点提示：1. 乘车 (take the bus) 去桃河公园植树 (plant trees)。
2. 一些同学挖坑 (dig/dug holes), 一些……。
3. 竖起告示牌 (put up the board) 告诉市民爱护 (protect) 小树。
4. 拍照记录 (take photos to record) 此次绿色活动 (green action)。
要点提示：1. 乘车 (take the bus) 去桃河公园植树 (plant trees)。
2. 一些同学挖坑 (dig/dug holes), 一些……。
3. 竖起告示牌 (put up the board) 告诉市民爱护 (protect) 小树。
4. 拍照记录 (take photos to record) 此次绿色活动 (green action)。
