阅读理解。
Dictionaries say that "spring fever" is a lazy or restless feeling. People usually have the feeling on the first
warm day of spring. Everyone has probably felt it at one time or another. people have talked about it for years.
Recently, scientists have taken a good look at spring fever. What they found is quite surprising.
In many places we live in, the winter months often seem dark anddreary. When spring comes late March,
the world becomes colorful. The number of daylight hours grows with each passing day. According to many
scientists, all the sunlight sets off chemicals in the brain (大脑). The chemicals make our feeling change and
bring on spring fever.
1. How do people who have spring fever feel?
A. active
B. awake
C. energetic
D. restless.
2. Scientists think that __________ cause(s) spring fever.
A. colors
B. sunlight
C. dark
D. illness
3. According to the passage, the underlined word "dreary" means "__________" in Chinese.
A. 沉闷的
B. 暖和的
C. 晴朗的
D. 明亮的
4. The best title for the passage is __________.
A. How to Get Over Spring Fever
B. Spring Fever
C. Darkness in winter
D. Spring and winter

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