问题 选择题

除去下列各物质中的杂质,所选用的试剂及操作方法均正确的是 [ ]

        物质   杂质(少量)    试 剂                       操作方法

A. CO2    CO               少量氧化铜                加热

B. SO2     CO2             适量的NaOH溶液       洗气

C. 硝酸    盐酸             过量的硝酸银溶液     过滤

D. KNO3  MnO2           足量的水                   溶解、过滤、蒸发

答案

答案:D

阅读理解

阅读理解。

 

     It was Christmas morning and she felt sorry. "Mr. Harriet, I'm so sorry to bother you today. I think you

 want a rest at Christmas like anybody else. "

     "Please don't worry about that," I said. "Which one is it this time?"

     "It's not one of the dogs. It's. . . Debbie. "

     "Debbie? She's at your house now?"

     "Yes… but there's something wrong. Please come quickly. "

     When I went to Mrs. Ainsworth's home, Debbie was there all right, but this time everything was

 different. She wasn't sitting in her usual place;  she was lying down quietly on her side, and close to her lay

  a little black kitten.

      I examined Debbie carefully while Mrs. Ainsworth looked at me. Her voice seemed to come from

 afar. "Is she ill,  Mr. Harriet?"

      "Yes… yes,  I'm afraid so. She is very ill. " I stood up. "There's really nothing you can do. I'm sorry. "

      Mrs. Ainsworth reached out and touched black Debbie's body. "Isn't it strange? She was dying and

 she brought her kitten here. And on Christmas Day. "

     Tears went down Mrs. Ainsworth's face and she was bright-eyed as she looked at me. "I've never had

 a cat before." She said.

     I smiled. "Well, it looks as though you've got one now. "

     "Debbie would be pleased. " She said.

      I nodded. "Yes,  she would. . . It was just a year ago that she came here,  wasn't it?"

     "That's right. " She looked at the kitten kindly. "The best Christmas present I have ever had. "

1. From the first paragraph, we mainly know_____.

    A. Mrs. Ainsworth was ill                

    B. Mrs. Ainsworth called Mr. Harriet

    C. Mrs. Ainsworth wasn't friendly            

    D. it was Christmas morning

2. Who was ill?

    A. Mrs. Ainsworth.                

    B. Mr. Harriet.

    C. Debbie.                        

    D. One of the dogs.

3. Mrs. Ainsworth's voice seemed to come from afar because _____.

    A. she worried about Debbie                    

    B. she was very ill

    C. she was afraid of Mr. Harriet                

    D. Debbie was dead

4. Which of the following statements is true?

    A. Debbie was one of Mrs. Ainsworth's dogs.

    B. Debbie left home after she sent her kitten to Mrs. Ainsworth.

    C. Debbie brought her kitten to Mrs. Ainsworth before she died.

    D. Mrs. Ainsworth would not like to look after the kitten.

5. The best title of the passage is _____.

    A. The Christmas Cat            

    B. She Tried Her Best

    C. Debbie Went Away            

    D. Mrs. Ainsworth

填空题 案例分析题