【題目】請你利用圖中所提供的3個數(shù)據(jù),自擬一道有關(guān)化學方程式的計算題,并寫出解答過程.
【答案】自擬試題:要制得56kg含雜質(zhì)3%的生鐵需要含F(xiàn)e2O3 80%的赤鐵礦石多少千克?(或多少千克含Fe2O3 80%的赤鐵礦石,可以煉出56kg含雜質(zhì)3%的生鐵?)
解:設(shè)需要含Fe2O3 80%的赤鐵礦石的質(zhì)量為x.
Fe2O3+3CO2Fe+3CO2
160 112
x×80% 56kg×(1-3%)
160︰112=(x×80%)︰[56kg×(1-3%)] x=97kg
答:要制得56kg含雜質(zhì)3%的生鐵需要含F(xiàn)e2O3 80%的赤鐵礦石97kg.
【解析】解:設(shè)需要含Fe2O3 80%的赤鐵礦石的質(zhì)量為x.
Fe2O3+3CO2Fe+3CO2
160 112
x×80% 56kg×(1-3%)
160︰112=(x×80%)︰[56kg×(1-3%)] x=97kg
答:要制得56kg含雜質(zhì)3%的生鐵需要含F(xiàn)e2O3 80%的赤鐵礦石97kg.
科目:初中地理 來源: 題型:
【題目】Ⅵ.閱讀理解。
A broken brown robot is lying on a beach,while another strong green robot stands on the opposite side of the sea.Everything is so vivid(生動的),including the grass.sand and water.This is not a scene from a movie,but is Wang Yaoli’s Gundam model(高達模型)work called Island Raid.She is a 14 year-old girl from Chongqing Furen High School.The model work won her the Gunpla Builders world Cup 2014,a top Gundam model competition.This year,her model work Hug won third place in the competition.
Wang Yaoli is a super Gundam model and cartoon fan.In primary school,a Gundam model gift from her painting teacher made her fall in love with the models.“It was so cool.I couldn’t help but try it for myself,”she said.Now her room is full of cartoon books and models.
In her eyes,a model is a kind of art rather than just a toy.“It takes patience(耐心),skills and creative ideas,”she said.“It is not simply putting the parts of robots together.You can add parts to show your own creativity.”In her work Hu9,she added an antenna(天線)onto the backpack of the robot.
Wang Yaoli makes models only during summer vacation.“It’s a big project.There are many things to do like assembling(組裝)and painting.It takes me one month to make one robot.Sometimes I paint it again and again to make sure that I get the right color,”she said.But she never gets bored.“I love it.In the future,I want to work in the cartoon field and help more people enjoy it,”she said.
【1】We learn from the passage that Island Raid is .
A. a movie’s name B. a brown robot’s name
C. a green robot’s name D. a girl’s Gundam model work
【2】Which of the following about Wang Yaoli is TRUE?
A. She is a l 6-year-old girl.
B. Her work Hug won second place this year.
C. She fell in love with the Gundam models in primary school.
D. Her math teacher once gave her a Gundam model in primary school.
【3】What does Wang Yaoli think of model works?
A. A model is Just a toy for little children.
B. It takes patience,skills and creative ideas to make models.
C. A model is simply putting every part together.
D. It is very boring.
【4】According to the passage,Wang Yaoli .
A. gets bored of making models
B. wants to be a painting teacher in the future
C. plans to work in the cartoon field in the future
D. thinks making models takes too much of her study time
【5】What is the best title for this passage?
A. A girl’s great interest in model works.
B. Gundam model works are popular with young people.
C. An interesting and cool toy.
D. The development of robots.
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E________ _ F_______ _____
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(1)圖中的大洋A是______C是_________大洲B是_______。
(2)圖中D的經(jīng)度是____ 緯度是________。
(3)D地在中國的上海附近,它屬于南北半球中的________半球,東西半球中的__________半球。
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【題目】讀我國東部某地等高線示意圖(單位:米),回答下列問題(12分)。
(1)地形類型A是 ,地形部位B是 。
(2)山頂D的海拔高度最低不會低于_________米。
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