题目

下列属于钾肥的是（ ） A． Ca3 （ PO4 ） 2 B． KCl C． CO（NH2 ） 2 D． （ NH4 ） 2 HPO4 答案：B【解析】 A、Ca3 （ PO4 ） 2 中含有磷元素，属于磷肥 ， 错误 ； B、KCl中含有钾元素，属于钾肥 ， 正确 ； C、CO（NH2 ） 2 中含有氮元素，属于氮肥 ， 错误 ； D、（NH4 ） 2 HPO4 中含有氮元素和磷元素，属于复合肥。故选 B。点睛：确定化肥中营养元素的种类、化肥的分类方法是正确解答此类题的关阅读短文，阅读短文后在图表中空格里填入恰当的单词。（每空填一个单词）（10分）Alice is my pen friend. She is a 16-year-old girl from the UK, but now she lives in China. She is a middle school student in Nanjing. She likes going to school, but there are some things she doesn’t like, such as PE. She enjoys playing sports. She thinks sports are interesting and exciting. But she doesn’t like doing physical exercises in PE classes. She feels that they are boring! Her favourite subject is Science. It seems that the amazing and useful Science attracts(吸引) her. She thinks she is on the way to be a scientist. She wishes to invent things to make the world more and more beautiful.In her free time, she often goes to the beach. She loves just sitting around and talking to friends there. She’s getting better at understanding boys, but she hates listening to hours of talk about football. “It’s not interesting at all!” she once said to me.That is my penfriend Alice.Information about AliceBasic informationName: Alice Age: sixteen1. old.Birth place: in the UK Living now: in ChinaWhatWhy /For whatLikesPlaying sports.Interesting and 2. Going to the 3.Sitting around and 4. to friends.Favourite subject: Science5. and useful.DislikesHaving 6. classes.Physical exercises are7.8. talks about football.Not interesting at all.WishesTo be a scientist.Be 9. in Science.To invent things.Make the world 10. beautiful.