Unit 4 Creatures large and smallppt专用说课稿内容

U4MR

The mystery of hibernation

Chenyan; May 7th 2019

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Learning Objectives: By the end of the period, the students are expected to

1.

discover the basic information about hibernation as well as the places and features of three hibernators 2.

understand the meaning of some new words, use them in contexts and recognize the Non-finite verbs used in the passage

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Teaching procedure

Stages Learning activities Pre-reading Purposes Pose questions about what they want to Encourage Ss’ participation and activate learn from the passage their prior knowledge about hibernators

1.

Read the passage and find out the Check Ss’ ability of grasping the general

answers to parts of the questions put and specific information While-reading forward

2.

Look for details concerning the To have a deeper understanding of the different places and features of the three hibernators three hibernators

Post-reading 1.

Introduce another hibernator-Snake

with the proper form of the new words or phrases listed 2.

Watch a video and focus Ss’ thoughts on two questions 3.

Go over the non-finite verbs

in the passage

Familiarize Ss with the new words and phrases through the introduction of another hibernator-Snake

Clarify the misunderstanding—

humans need hibernation and

envision the possible medical advancement

Homework

Write an article about one of the other hibernating creatures. 本课教学设计：

一．课本教材分析

本课所用文本是高一下册第四单元的拓展阅读内容，文本结构为总分结构，给出了冬眠的定义以及青蛙、蝙蝠和熊冬眠的地点及特点。

二．学情分析

教学对象为高一（1）班学生，该班课堂比较活跃，语言表达能力需要多锻炼。对于动物冬眠这一话题，应该能够吸引学生的兴趣。

三．本课教学设计说明

本课尝试以学生提问学生解答的方式来获取信息。第一步，由学生提出想从此类文章中获取何种信息；

第二步，快速浏览课文，试题找到所提问题的答案；

第三步，找出三种冬眠动物在冬眠地点和方式上的不同，处理信息的同时讲解部分生词；第四步，通过介绍另一种冬眠动物——蛇，拓展知识的同时巩固新词汇的运用；第五步，解答疑问：为何人类不需冬眠；冬眠动物特点的研究将为临床的进步做出何种贡献；最后，回顾课堂所学并请学生浏览全文，提出在语言或内容上仍存有的疑问，尤其关注文中非谓语的使用。

四．教学重难点

1.

调动学生积极性主动提出问题并寻找答案，完成自设表格内容

2.

学会运用新词汇，能分辨非谓语的使用

Worksheet 

Q&A What to learn

…

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Where and how they hibernate Hibernators

Hibernating places

bat

frog

Polar bear

What have learnt

…..

Their features of hibernation

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Revision of some new words and phrases Complete the passage with the words in their proper form occur

stir

disturb

absence

hibernate

continuously

slow down

as though Snakes are creatures that ________. When it’s getting cold, their movement ________. Before the hibernation ______, they can eat a lot of fat in their bodies in order not to die from the ______ of food in winter. Then they find a place where they won’t __________ to hibernate, such as a hole underground. During hibernation, they look _______ they are dead. They don’t _____ for several months ___________. When spring comes, they emerge from their holes and began their search for food.

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Choose the right answer Features of hibernators Reduced blood flow Muscle deterioration(退化) Weight control A. improve the lives of bed-living patients B. figure out the relationship between metabolism and weight gain

C. better treatments for protecting the brain during a stroke(中风)

Possible contributions to humans

More reading

The mystery of hibernation

No human has ever experienced hibernation, and yet many creatures experience it every year. Read the following article from a science magazine to see what hibernation is all about. What do bears, bats and frogs have in common? They all hibernate. Hibernation is a state often compared to sleep. It usually occurs in winter, when a creature does not move for weeks or months continuously. Creatures hibernate to survive the cold weather and the absence of food.

A typical example of a hibernating creature is the bat. When winter comes, bats find a safe place in a cave. Looking like they are dead, they hang upside down. Their pulse and breathing rates greatly slow down. Their body temperatures drop as well. These things help them save energy during long winters when it is difficult to find food.

Frogs, like many amphibians, also hibernate when it gets cold. After digging deep into the mud at the bottom of a pond, they do not stir again until it is warm. During hibernation, they breathe through their skins, not their mouths.

Another hibernating creature is the bear. In contrast to other creatures, hibernating bears do not appear as though they are dead, but seem as though they are very sleepy. If they are disturbed during hibernation, they can get up very quickly. While hibernating, bears stay in their dens, which are filled with leaves to make their stay more comfortable and warmer. In spring, having awakened, they leave their dens, thin and hungry.

New words have (something) in common

to share the same features with与……有共同之处

*hibernate

v. to spend the winter in a deep，sleep-like state冬眠；蛰伏

occur

v. to happen发生；出现

continuously

adv. happening for a long period of time without stopping持续地

absence

n. a lack of something不存在；缺乏

upside down

in a position where the top of something is at the bottom and the bottom at the top底朝上

pulse

n. the regular beat of blood pumped through the body by the heart脉搏；脉率

rate

n. the number of times something happens or exists in a certain period比率；率

amphibian

n. a cold-blooded animal which can live both on land and in water两栖动物

stir

v. to move about动；移动

disturb

v. to interrupt or bother（

somebody）打扰；干扰；妨碍

den

n. an animal’s hidden home兽穴；兽窝