第四课

  4 hibernation and migration 4  冬眠与迁徙

Autumn is coming, and a group of geese are flying south in the form of "people". Why do they fly south in autumn?秋天来了，一群大雁排成“人”字往南飞。它们为什么秋天飞往南方？

Task card任务卡

Activity process活动过程

How do they winter?它们是怎样过冬的？

Collect relevant pictures and text of animals wintering.搜集动物过冬的相关图片和文字资料。

tortoise乌龟

hedgehog刺猬

frog青蛙

index card for files资料卡

As the temperature drops, the frog's body temperature will gradually drop. When the temperature drops to a certain extent, frogs will die They would "sleep" in the soil to escape the cold.随着气温的降低，青蛙的体温会逐渐下降。当气温下降到一定程度时，青蛙就会钻进泥土中“睡觉”，以此来躲避严寒。

Some animals hide in the hole in winter, curl up, do not eat. This phenomenon is called hibernation.有些动物冬天躲进洞里，蜷缩着身子，不吃不动。这种现象称为冬眠。

Unit evaluation单元评价

Knowledge paradise知识乐园

Fill in and say.填一填，说一说。

Animal organs动物的器官

skin皮肤

limb四肢

wing翅膀

Animals and environment  动物与环境

How animals adapt to the environment动物适应环境的方式

migrate迁徙

hibernation冬眠

characteristic特点

give an example举例

Science Palace 科学殿堂

Look up the data to understand how the Tibetan antelope migrates.查阅资料，了解藏羚羊是怎样迁徙的。

Reflection space反思空间

My harvest我的收获

·Some animals hibernate in winter.·有的动物用冬眠的方式过冬。

I need to improve我需要改进的

·Experiment of simulating cat foot meat pad.·模拟猫足肉垫的实验。

c

·Do animals sleep in the summer?·动物会夏眠吗？