[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2英语试题
[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2英语试题于2025-05-20发布，目前答案胶囊网已经汇总了[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2英语试题的各科答案和试卷，更多试卷答案请关注本网站。
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[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2英语试题
[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2语文试题
B[跨学科·生物]
Some animals can easily find their way home after a long journey. How do they make it Scientific research shows that they are born with certain unusual abilities for direction.
A certain kind of ants(蚂蚁), for example, can count their steps to avoid(避免)getting lost. They can go as far as 110 metres and bring food home. These ants live in the open desert, so they have nothing to guide them along the way. It's like someone walking six kilometres through a dark forest.
Some fish have an unbelievable sense of smell. They can smell even a single drop of their home water in a large sea area. Some seabirds have a similar ability. They are able to make a smell map of their flying area.
Some animals can sense the earth's magnetic field (磁场), while humans can't. This magnetic field guides a certain kind of fish when they swim a long way to a place and then back. How can this kind of fish do that It is still a mystery. Scientists have no good answers yet.
However, animals with such unusual abilities still have difficulty dealing with environmental changes caused by human activities. For example, many birds depend on stars for direction, but they get lost easily at night when city lights are kept on all night. To solve this problem, we can simply turn off some lights at night. Clearly, humans' one small act may mean a lot to animals.
31. How can a certain kind of ants find their way
1、[鼎成原创模考]2025年河南省普通高中招生 方向预判卷(二)2物理试题
3、[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2数学试题
3、[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2地理试题
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1、[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2 历史试题
解析：（1）AB.电磁打点计时器要打点，需要电压合适的交流电源，A正确，B错误；
C.打出的纸带需要测量点间的长度，需要刻度尺，C正确；
D.打点计时器就可以计时，不需要秒表，D错误；
E.可由打出的纸带来计算速度和加速度，所以不需要天平测量物体的质量，E错误。
故选AC。
（2）由题意可知打点周期是
计数点4对应的速度大小
[鼎成原创模考]2025年河南省普通高中招生考试方向预判卷(二)2数学答案
