问题 选择题

下列关于光合作用与呼吸作用的说法,正确的是

A.光合作用和呼吸作用是生物的共同特征

B.植物白天进行光合作用,晚上进行呼吸作用

C.绿色植物的所有细胞都能进行光合作用和呼吸作用

D.光合作用产生的气体和呼吸作用需要的气体是相同的

答案

答案:D

题目分析:光合作用是指绿色植物通过叶绿体,利用光能,把二氧化碳和水转化成储存着能量的有机物,并且释放出氧的过程,生物体内的有机物在细胞内经过一系列的氧化分解,最终生成二氧化碳或其他产物,并且释放出能量的过程,叫做呼吸作用,

呼吸作用是生物的共同特征,错误,不符合题意;

光合作用需要光,因此光合作用只有在白天进行,呼吸作用不需要光,因此呼吸作用全天都能进行,错误,不符合题意;

光合作用进行的场所是叶绿体,并不是绿色植物的所以细胞都能进行光合作用,一定要含有叶绿体的细胞才可以进行光合作用,错误,不符合题意;

光合作用的产物是呼吸作用的原料,光合作用的原料是呼吸作用的错误,正确,符合题意;

故选D。

阅读理解

The 92-year-old, thin, calm and proud lady, who is fully dressed each morning by eight o’clock, even though she is nearly blind, moved to a nursing home today.

Her husband of 70 years recently passed away, making the move necessary. After many hours of waiting patiently in the hall of the nursing home, she smiled sweetly when told her room was ready.

As she walked slowly to the elevator, I provided a true description of her tiny room, including the old sheets that had been hung on her window. “I love it,” she said with the happiness of an eight-year-old having just been presented with a new puppy.

“Mrs. Jones, you haven’t seen the room…just wait.”

“That doesn’t matter,” she replied. “Happiness is something you decide ahead of time. Whether I like my room or not doesn’t depend on how the furniture is arranged. It’s how I arranged my mind. I have already decided to love it. It’s a decision I make every morning when I wake up. Each day is a gift, and as long as my eyes open I’ll focus on the new day and all the happy memories I’ve stored away.” She went on to explain, “Old age is like a bank account. You take what you’ve put in. So, my advice to you would be to put in a lot of happiness in the bank account of memories. Thank you for your part in filling my memory bank.” And with a smile, she said, “All my memories are happy ones.”

Mrs. Jones was always happy in the nursing home and she died at the age of 108.

小题1:We can infer from the passage that the author________.

A.is one of Mrs. Jones’ children

B.is a relative of Mrs. Jones

C.works in the nursing home

D.is the owner of the nursing home小题2:The room in which the old lady will live________.

A.is very comfortable

B.is fairly big

C.isn’t well equipped

D.is equipped with new furniture小题3:Mrs. Jones was very happy when told about her room because she________.

A.couldn’t see what her room was like

B.thought the nursing home was her home

C.would have to live in the nursing home

D.had already made up her mind to be happy小题4: Which of the following words can best describe Mrs. Jones?

A.Proud.

B.Pleasant.

C.Determined

D.Honest

单项选择题