问题 选择题

如图,甲、乙、丙分别表示在不同条件下,可逆反应A(g)+B(g)⇌xC(g)的生成物C在反应混合物中的百分含量w(C)和反应时间(t)的关系.下列说法与图象符合的是(  )

A.甲图中a表示反应达到平衡后在恒温恒压条件下充入氦气后的情况

B.乙图中b曲线表示有催化剂的情况

C.根据丙图可以判断该可逆反应的正反应是吸热反应,x>2

D.丁图可表示在某固定容积的密闭容器中,上述可逆反应达到平衡后A的体积分数随着温度(T)变化的情况

答案

答案:C

阅读理解

When you’re lying on the white sands of the Mexican Rivera, 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 travel writer and food 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 three books, The Complete Idiot Travel Guide to Mexican Beach Resorts.

Her job in travel writing began some eight years ago. After getting a PhD in English in Canada, she took a test for 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, Arizona.

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 museum hours correct or you could really ruin someone’s vacation.

小题1: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.小题2: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.小题3: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

单项选择题