问题 实验题

根据下图回答以下问题。

(1)仪器a的名称____;A装置的实验现象____________;写出反应的化学方程式_______________。

(2)B装置中石蕊溶液的作用_____________。

(3)C装置的实验现象________________;写出反应的化学方程式_____________。

答案

(1)集气瓶;红磷燃烧、冒白烟,水流入广口瓶、流入的体积约为广口瓶容积的1/5;4P+5O22P2O5

(2)检验二氧化碳与水能否发生化学反应(验证二氧化碳与水反应的产物显酸性)

(3)红色粉末变成黑色;Fe2O3+3CO2Fe+3CO2

阅读理解

Jerry Green went to spend a year at the South Pole Station (南极站)as the only doctor in 1998 when she 47.While working at the station that March. she discovered that there was a hard lump (肿块)in her stomach. She knew it was cancer,but she wasn't able to go to a doctor for help.She couldn't leave the station for the next seven until the snow thawed. Dr.Green didn't wait for the death. But decided to fight against the cancer. She tried to about the lump to a hospital in the United States. The doctors said it was cancer. Without the proper wouldn't live for long. Soon a USA airplane came to provide her with some helpShe started her own treatments(治疗)after getting instructions from American doctors. She finally spent the long winter there before she returned home that October .Since then, she had become a incubus in support of cancer charities. She also wrote a best-selling book called Ice Bound.

Sadly.Dr.Grecn's cancer finally returned. She died on June 23.2009.

小题1:Jerry Green discovered that she bad a bard lump in her stomach in _

A. March.1998      B.May. 1998      CJune.2009   D. July,2009

小题2:What does the underlined word" thawed "mean in Chinese?

A.形成

B.堆积

C.融化

D.覆盖小题3:When did she start her own treatments?

A.After searching the Internet.

B.After getting instructions from A merit an doctors.

C.After hearing from her paw law

D.After becoming a member in support of cancer charities.小题4: Which ofthe following statements is NOT true?

A.Dr.Green decided to give up the treatments.

B.She sent the information about the lump to a hospital in the United Stales.

C.She wrote a book called Ice Bound.

D.Dr Green died of cancer.小题5:What does the writer feel about Dr. Green's death?

A. exciting      B.Happy.     C Sad  D. Pleased

单项选择题