六、阅读理解。
The Seasons
Many countries have four seasons each year. What causes these seasons? We get our warmth from the sun. The earth takes one year to go around the sun. It is always tilted to one side. When the North Pole is tilted towards the sun, the northern part of the world has summer and it is winter in the south. The in-between times are spring and autumn.
In some parts of the world, the weather is always hot, and winter never comes. These are the countries around the equator(赤道). Do you know anything about equator? It is a line drawn around the middle of a globe of the earth. It is halfway between the two poles.
What Affects Temperature?
Temperatures get lower the higher you go. If you climbed a mountain, you would be much colder than if you were at sea level. For every 1,000 metres we climb, the temperature drops about $6°$ Celsius.
Even mountains in very hot parts of the world may have snow or ice on them all year round. Tanzania is a country in Africa that lies on the equator. Mt Kilimanjaro is its highest mountain at 5,895 metres high and it has some ice on the top right through the year—though not as much as it used to have.
$\underline{\quad▲\quad}$ Temperatures
Does the time of day affect the temperature? Yes. In the middle of the day, it is usually warmer because the sun is more directly overhead. In the morning and again in the evening, it is often cooler than in the middle of the day. It is because the sun is lower in the sky and the slanting(斜的) rays have to go through more atmosphere. Atmosphere is important to living things on the earth. Without the atmosphere, it would be burning hot every day and freezing cold every night.
During the day, the atmosphere is like a filter(过滤器). It keeps the hottest rays of the sun from reaching the earth. At night, the atmosphere is like a blanket. It traps(吸收) the heat radiated from the earth, preventing it from escaping into space too quickly.
()1. Which part of a magazine is the passage most probably taken from?
A. Health.
B. Fashion.
C. Culture.
D. Science.
()2. Which word is the most suitable for " $\underline{\quad▲\quad}$ "?
A. High
B. Low
C. Daily
D. Different
()3. What can we learn from the passage?
A. It doesn't have any ice on the top of mountains in Africa.
B. Countries around the equator only have one season, cold winter.
C. When the South Pole is tilted towards the sun, the northern part has winter.
D. If the temperature at sea level is $20° C$, it is $15° C$ in a place which is 3,000 metres above.

1. D 2. C 3. C

【分析】本题为科普类英语阅读理解题，包含3道选择题，分别考查文章出处推断、段落标题选择、细节信息判断。解题时需先通读全文把握核心内容，再针对每道题回到原文定位关键信息，逐一比对选项与原文内容，排除错误选项得出答案。
【解析】
1. 第1题：文章围绕季节成因、赤道气候、温度影响因素等科学知识展开，属于科普范畴，因此最可能出自杂志的科学板块，故选D。
2. 第2题：该段核心内容是“一天中的时间对温度的影响”，选项中“Daily”（日常的，指一天内的）契合段落主题，A、B、D均不符合，故选C。
3. 第3题：逐一分析选项：
A：原文提到非洲赤道附近的乞力马扎罗山顶部全年有冰，A错误；
B：赤道地区天气终年炎热，无冬季，B错误；
C：原文指出北极倾向太阳时北半球为夏季、南半球为冬季，反之南极倾向太阳时北半球为冬季，C正确；
D：海拔每升高1000米温度约降6℃，3000米应降18℃，20℃-18℃=2℃，并非15℃，D错误；故选C。
【答案】1.D 2.C 3.C
【知识点】科普类阅读理解、细节理解题、主旨推断题
【点评】本题考查学生对科普类英语文章的综合阅读能力，涵盖多种题型，需学生准确提取原文信息，结合逻辑分析选项，难度适中。
【难度系数】0.5