需区分的物质

方法1

方法2

A

碳酸钠溶液和氯化钠溶液

分别加入石蕊溶液

分别加足量氯化钙溶液

B

食盐水和蒸馏水

分别测两种液体的pH

分别加热蒸发

C

氧化铁和氧化铜

分别观察固体的颜色

分别加入足量的稀硫酸

D

一氧化碳和二氧化碳

分别闻气体气味

分别通过灼热的氧化铜

My favourite sport

    My favourite sport is basketball, because basketball can make me strong and happy. It can also help me make more friends and learn teamwork.

    I enjoy playing basketball with my friends. Kobe Bryant is my favorite player. I wish I can play basketball with Kobe Bryant one day.

    Fishing is my favourite sport. I like fishing but I hardly get any fish. I'm not really interested in fishing. I am only interested in sitting in a boat and doing nothing at all. Anyway I think fishing can make me feel very relaxed and comfortable.

    I like swimming because I think it's a funny and easy sport. And swimming is more popular than running. Swimming is good for my health. It can help me keep fit. I joined the swimming club last term. I hope to swim very fast and beautifully. I want to keep my body in a good shape.

    I enjoy jogging with my friends Tommy and Betty. In the early mornings, we often go jogging in the park. Then we are ready for school. At weekends, we sometimes go jogging in the countryside. The more I go jogging, the healthier I will feel.