问题 选择题

下列实验事实可以用同一反应原理解释的是(    )

A.活性炭、氯气都能使品红溶液褪色

B.苯、乙醇、纤维素都能与浓硝酸反应

C.乙醛、葡萄糖都能被新制Cu(OH)2氧化

D.淀粉、蛋白质都能发生显色(或颜色)反应

答案

CD

活性炭由于吸附作用而使品红溶液褪色,Cl2由于HClO的强氧化性而使品红溶液褪色;苯与浓硝酸发生的是硝化反应,而乙醇、纤维素与浓HNO3发生的是酯化反应。

阅读理解

阅读理解

       Xia Fengting is a girl who lost her right hand in the 2008 Wenchuan earthquake. She and 49 other

disabled students from Dujiangyan,aged between 10 and 14,who were also injured in the Wenchuan

earthquake,visited Expo 2010 Shanghai from May 7 to 12 because of the help from the Dujiangyan

Love and Education Fund(爱心教育基金会).

       Xia Fengting,an ll-year-old girl, loves  to  paint  very much.  "I am drawing a picture of the China

Pavilion (展馆) to show my classmates how beautiful the Expo is,"said Xia. After she lost her right hand

in the 2008 Wechuan earthquake,lots of people didn't only work hard ather physical(生理) health but

also at the mental health. She leamed to write,draw and use chopsticks with her left hand. She worked

so hard that Xia won her first award for a painting she did with her left hand at the age of 10. Now she

has won several awards exhibiting her work and dreams of becoming an artist.

       One pavilion at the Shanghai Expo is the Life and Sunshine Pavilion(生活阳光展馆 ) . It is the first

pavilion especially designed for the disabled in the 159 years of Expo history. And it makes people know more about the disabled and see the bright future of them. China has more than 83 million disabled people,about 6.4 % of the population all over our country.

1. Xia Fengting is ____.

A. from Shanghai    

B.visiting Expo 2010 now    

C. ten years old    

D. interested in painting

2. Life and Sunshine Pavilion____.

A. has 83 million disabled people    

B. is designed for disabled people    

C. is in Dujiangyan    

D. was designed 159 years ago

3. The best title for the passage is____.

A. China Pavilion of Exp0 2010    

B. Xia Fengting    

C. Bright Future of the Disabled    

D. Love and Education Fund

单项选择题