问题 填空题

化学是造福人类的科学,在农业生产、医疗保健、促进社会发展等方面作出了重大贡献。请用所学过的化学知识解答下列问题。

(1)2008年全球出现“无声海啸”--粮食危机,而我国粮食储备充足,市场价格稳定,化肥为保持粮食丰产起到了重要作用。常用化肥有:①尿素[ CO(NH2)2];②硝酸钾(KNO3);③硝酸铵(NH4NO3)等。

上述化肥中属于复合肥的是____(填序号),硝酸铵溶解于水后溶液温度明显____(填“升高”或“降低”)。

(2)低血糖患者每天都应注意摄入一定量含淀粉的食物,以使血液中维持一定浓度的葡萄糖。请你列举两种富含淀粉的食物_________、___________。

答案

(1)②;降低

(2)大米;面粉(其他合理答案也可得分)

完形填空

Your parents might not realize how important their health is to you. Now it’s your chance to let them know!

Think about it before starting.

Before you talk with your parents, it helps to get clear on what you want them to do. _小题1:_ Get more exercise? Get more sleep? If you want a parent to lose weight, you’d better find out the disadvantage of being heavy and how great they will feel after eating healthy food or exercising more.

__小题2:_____

Pick a moment when everyone’s relaxed and there’s time to talk. Say something like: “Dad, I care about your health and I worry you’re so busy that you don’t have time for exercise.” Let parents know you are willing to make the change yourself. For example, say you’d be willing to walk together after dinner.

Come up with a plan together

Has your mom or dad agreed to your ideas? Well done! Let’s say the change your mom or dad agreed to is eating healthier food.__ 小题3:_____ Examples are: I’ll eat five fruits every day. I’ll eat breakfast every morning.

Show your encouragement and understanding

It’s normal if your parents fail at first. If parents want to give up, encourage them to keep going. If you’re making a change together, you can say, “Well, I’m sorry. Let’s start fresh and go on with our plan tomorrow.” __小题4:______ Let your parents know you love and care about them for what they’re doing and that it means a lot to you.

What if a parent says “No”?

If parents don’t follow you ideas, ask them(gently): “Could you at least think about it for me ?” __小题5:_____How many times have you pushed back on something they asked you to do, but then later thought more about it?

Soon you’ll be grown and out of the house. Here’s your chance to set your parents on the right way.

根据材料内容,选出最佳选项。

A.Then give them a little time to consider.

B.Do you want a parent to eat better?

C.Work together to plan what they and you will do/

D.Offer your praise!E.Talk to parents the same way you’d like them to talk to you.

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