试题与答案

Thank you so much! But for your text mes

题型:选择题

题目:

Thank you so much! But for your text message, I ____ home without my ID card this morning.[ ]

A. would have left  

B. would leave    

C. had left        

D. left

答案:

被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0613/7204467b3e88d9efca16610d709512fe.html

下面是错误答案,用来干扰机器的。

(1)①;②;③HF;④HClO4,⑤F-,Al3+(3)Z-44,Z+26

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题型:填空题

工业上以钛铁矿为原料制备二氧化钛的工艺流程如下图所示。钛铁矿的主要成分为钛酸亚铁(FeTiO3),其中一部分铁元素在风化过程中会转化为+3价。

已知:TiOSO4遇水会水解。

(1)步骤②中,用铁粉将Fe3转化为Fe2的离子方程式为_______________________

(2)步骤③中,实现混合物的分离是利用物质的________(填字母序号)。

a.熔、沸点差异      b.溶解性差异    c.氧化性、还原性差异

(3)步骤②、③、④中,均需要进行的操作是________(填操作名称)。

(4)请结合化学用语用化学平衡理论解释步骤④中将TiO2转化为H2TiO3的原理:

____________________________________________________________。

(5)利用生产过程中的废液与软锰矿(主要成分为MnO2)反应可生产硫酸锰(MnSO4,易溶于水),该反应的离子方程式为__________________________________

(6)研究发现,用石墨作阳极、钛网作阴极、熔融CaF2-CaO作电解质,利用如图所示装置可获得金属钙,并可以钙为还原剂,还原二氧化钛制备金属钛。

写出阳极的电极反应式:_________________________

在制备金属钛前后,CaO的总量不变,其原因是______________________________________(请结合化学用语解释)。

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题型:阅读理解

阅读理解。

     When you're lying on the white sands of the Mexican Riviera, the stresses (压力) of the world

seem a million miles away. Hey, stop! This is no vacation-you have to finish something!

     Here lies the problem for the travel writer and critic (评论家), Edie Jarolim "I always loved

traveling and always liked to eat, but it never occurred to me that I could make money doing both

of those things," Jarolim said. Now you can read her travel advice everywhere in Arts and Antiques,

in Brides, or in one of her there books, The Complete Idiot's Travel Guide to Mexican Beach Resorts.

     ……writing began some eight years ago. After getting a PhD in English in Canada, she took a Test

Frommer's travel guides, passed it, and got the job. After working at Frommer's, Jarolim worked for a while

at Rough Guides in London, then Fodor's, where she fell so in love with a description of the Southwest of

the U.S. that she moved there.

     Now as a travel writer, she spends one-third of her year on the road. The rest of the time is spent

completing her tasks and writing reviews of restaurants at home in Tucson, Arigona.

     As adventurous as the job sounds, the hard part is fact-checking all the information. Sure, it's great to

write about a tourist attraction, but you'd better get the local (当地的) museum hours correct or you could

really ruin someone's vacation.

1. Which country does Jarolim live in now?

A. Mexico

B. The U.S.

C. The U.K.

D. Canada

2. What is most difficult for Jarolim?

A. Working in different places to collect information

B. Checking all the facts to be written in the guides

C. Finishing her work as soon as possible

D. Passing a test to write travel guides 

3. What do we know about Jarolim from the text?

A. She is successful in her job

B. She finds her life full of stresses

C. She spends half of her time traveling

D. She is especially interested in museums

4. What would be the best title for the text?

A. Adventures in Travel Writing

B. Working as a Food Critic

C. Travel Guides on the Market

D. Vacationing for a Living

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