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问题 解答题

现有含盐率为20%的盐水300克，如果要使含盐率降为10%，应加水多少克？

答案

300×20%÷10%，

=60÷10%，

=600（克）；

600-300=300（克）；

答：应加水300克．

选择题

“Will you go skiing with me this winter vacation?” “It ______.”

A．all depend

B．all depends

C．is all depended

D．is all depending
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改错题

I’m good at singing. I’ve been interested in music and dreamed of become a singer ever since my childhood. My parents began to teach me children’s songs until I was only three. After I started school I had more chances to enjoy various song, such as folk songs and popular songs, and practicing singing a lot. I like singing English songs as well, which greatly benefits me in my learning of English. 

Practice makes perfectly. I have made great progress in singing and my efforts have paid for. Last year, I take part in a talent show and won prize.I think everyone is unique and has our advantages in some respects. I know my singing skills still need to be improved. But I’m confidence that I will serve our society with my songs in the future.

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