上外版 高二年级 选择性必修二 第四单元 学案（学生版）
Learning Tasks
Task 1: Predict what may be included when introducing a disaster.
(
introduce
a
natural
disaster
)
Task 2: Make a definition.
Step1: Read and fill in the blank.
Term defined
Class
Characteristics
Step2: Make a definition based on the following table.
Term defined a wildfire
Class a fire that spreads over woodland or bush
Characteristics spread at an amazing speed and destroy everything in their way
___________________________________________________________________________
___________________________________________________________________________
___________________________________________________________________________
Task 3: Fill in the table.
Topic Generalization Detailed Information
harmful effects widespread destruction flooding loss of lives damage to property
causes
possible locations
Task 4: Brainstorm about a certain disaster’s causes, harmful efects, and measures to take.
Task 5: Complete the essay in 100-120 words. Make sure it is informative, clear, and objective.(共20张PPT)
单元封面
《 高 中 英 语 》 ( 上 外 版 )
选择性必修第二册第四单元
Dis aster Surviv al
授课 教 师：
课时
授课内容
1
Getting Started/ Reading A
1
Reading A/ Vocabulary Focus
1
Reading A/ Grammar in Use
1.5
Listening, Viewing and Speaking
1
Reading B
0.5
Critical Thinking
1
Writing
1
Further Exploration/ Self-assessment
单元封面
《 高 中 英 语 》 ( 上 外 版 )
选择性必修第二册第四单元
学习目标 Learning Objectives：
At the end of the lesson, you will be able to ...
1. 能整合本单元中各灾害形成的原因、后果、地点、措施等要素；
summarize different aspects of natural disasters such as harmful effects, causes,
locations, measures to take;
2. 能依据说明文的结构特征和语言特点简要介绍某种自然灾害。
introduce a natural disaster based on the structure and language of an expository writing.
Reviewing
Avalanche is very fast and
disastrous, burying
everything under tons of
snow.
We’d better have a basic
survival kit to provide us
with the most important
things needed.
Typhoons occur in
the northwestern
Pacific Ocean.
/
Wildfires can be
both natural and man-made.
\
Reviewing
There is a disaster education week in your high school. Participants in every class are required to write an essay to introduce a certain natural disaster in English to raise students’ awareness of natural disasters.
measures to take
harmful effects
Predicting
locations
causes
body
Sample Reading
Term defined
a typhoon
Class
a tropical storm
Characteristics
strong winds
move in circles
a definition= term defined + class+ characteristics
characteristics
term defined
Sample Reading
class
erm defined
a t
lass
h
a definition= term defined + class+ characteristics
A typhoon is a tropical storm with strong winds that move in circles.
characteristics
term defined
Sample Reading
class
T
C
C
Topic Generalization
Detailed Information
harmful effects widespread destruction
flooding
loss of lives
damage to property
causes an earthquake, a landslide or a violent volcanic eruption
A major fault slips.
The displaced rock pushes water.
possible locations in the Pacific Ocean’s “ Ring of Fire”
a geologically active area where
structural shifts make volcanoes and earthquakes common
Sample Reading
have enough food, water and other supplies
have a survival kit
stay alert and
plan evacuation
routes
before a disaster
universal rules
Sample Reading
stay alert and
plan evacuation routes
have a survival kit
have enough
food, water and other supplies
during a disaster
after a disaster
before a disaster
Sample Reading
Features of an expository essay
Clear:
Using words that clearly show the point.
Informative:
Providing information about a topic.
Objective:
Avoiding giving personal opinions or comments.
Sample Reading
There is a disaster education week in your high school . Participants in every class are required to write an essay to introduce a certain natural disaster in English to raise students’ awareness of natural disasters.
Summarizing
There is a disaster education week in your high school . Participants in every class are required to write an essay to introduce a certain natural disaster in English to raise students’ awareness of natural disasters.
Guided Writing
It can be both natural and man-made.
It is not limited to a particular continent or environment.
It spreads so fast that hectares of woods are burnt into ashes in a wink.
Conclusion:
Due to the large-scale damage it can cause, you’d better have a basic survival kit and learn some survival skills. What’s more, if you are caught in a wildfire, what matters
most is to stay calm and use a wet cloth to cover your nose and mouth before moving.
Introduction:
A wildfire is a large fire that spreads over woodland or bush, destroying everything in their way.
Body:
Sharing
1. Search for relevant information on the Internet to add more details.
2. Write your essay based on the outline.
Assignments
Share your outlines in your group.
Interactive Activity
T h a n k y o u ！《高中英语（上外版）》选择性必修第二册 Unit 4 Disaster Survival
1
课时：第 7 课时
课型：写作课
一、教学设计与说明
1. 教学目标
教学内容： Writing an expository essay
on a natural disaster
设计者：
本课核心目标为引导学生整合本单元中各灾害形成的原因、后 果、地点、措施等要素；依据说明文的结构特征和语言特点简要介绍某种自然灾害。
2. 设计思路
本课为本单元的第 7 课时，旨在引导学生基于本单元关于自然灾害与防范的相关语篇 内容，通过解读和分析范例文本的内容和结构，学习说明文体裁的写作目的、对象、写作 方法和语篇特点，从而完成介绍某一自然灾害的说明文语篇的任务。
首先，教师激活学生思维，带领学生回顾近期在本单元所学习到的自然灾害内容，让 学生思考介绍自然灾害需要涉及哪些方面。接着，教师创设写作情境，即学校近期开展自 然灾害教育周活动；带领学生一起研读教材所提供的范文，以一系列的设问，引导学生解 读语篇内容，证实猜测；同时分析结构并梳理说明文写作特点。之后，学生通过小组讨论， 确定选题，并头脑风暴该灾害的成因、危害和防范措施。最后，学生独立完成作文提纲并 组内分享。
3. 重点难点
教学重点：知晓说明文的文体结构、说明对象和说明方法，并在实践写作中运用。
教学难点：能设计合理的说明文语篇结构，恰当地运用说明方法，介绍某一自然灾害。
Lesson Plan
By the end of this period, students are expected to
1. summarize different aspects of natural disasters such as harmful effects, causes, locations, measures to take.
2. introduce a natural disaster based on the structure and language of an expository writing.
Procedures:
I. Interactive activity 1: Initiating the topic.
*T: Show students the pictures of various disasters and review what they have learned about them. *Ss: Review the disasters they have learned in this unit and predict how to introduce a disaster. Purpose: To help students get ready for the learning.
Guided questions:
1. What do you know about these disasters
2. Based on what you have said, what elements can be included when introducing a disaster
II. Interactive activity 2: Reading the sample writing and analyzing the passage pattern.
*T: Ask students to read the sample essay and guide them to analyze the passage pattern. *Ss: Read the sample essay, confirm their predictions, and figure out the passage pattern.
Purpose: To let students aware of the expository writing’s passage pattern.
Guided questions:
1. Are there any other aspects
2. What is the function of the 1st paragraph What is the function of the 5th paragraph
3. Can we disorganize para 2-4
(Yes, because they introduce different aspects of the tsunami. They are parallel.)
III. Interactive activity 3: Read the sample writing one by one and figuring out the features
of an expository writing.
2
*T: Ask students to locate information and figure out the basic features of an expository writing. *Ss: Read the sample writing again and discuss with group members to figure out basic features. Purpose: To help students make clear the features of an expository writing.
Guided questions:
1. What is the definition of a tsunami How to make a definition
2. Can you figure out the structure of the body part by filling the table
3. Can you think about more measures to take
IV. Interactive activity 4: Deciding on a certain disaster and gathering details.
*T: Ask students to discuss with group members and decide on a certain disaster. Ask them to brainstorm about its causes, harmful effects, possible locations, and what measures to take. *Ss: Discuss with group members and decide on a certain disaster for the writing task. Brainstorm about its causes, harmful effects, possible locations, and measures to take. Purpose: To encourage students to gather as many details as possible and get prepared for the writing task.
Guided questions:
1. What disaster do you want to introduce
2. What are the causes and harmful effects of it
3. What measures should be taken when the disaster happens
V. Independent activity 5: Completing the outline and drafting an expository essay.
*T: Lead students to complete the outline and draft the essay. *Ss: Select the ideas from the discussion and work out an outline. Purpose: To encourage students to put the writing skills learned into practice.
Guided Question:
Who would like to share your outline
3
VI. Assignment:
1.Search for relevant information on the Internet to add more details. 2.Write your essay based on the outline.
4上外版 高二年级 选择性必修二 第四单元 学案（教师版）
Learning Tasks
Task 1: Predict what may be included when introducing a disaster.
(
measures
to take
)
(
harmful
effects
) (
locations
)
(
causes
) (
time
/
season
) (
introduce
a
natural
disaster
)
(
definition
)
Task 2: Make a definition.
Step1: Read and fill in the blank.
Term defined a tsunami
Class a series of ocean waves
Characteristics send surges of water, reaching heights of over 100 feet pose great danger to people nearby
Step2: Make a definition based on the following table.
Term defined a wildfire
Class a fire that spreads over woodland or bush
Characteristics spread at an amazing speed and destroy everything in their way
A wildfire is a large fire that spreads quickly over woodland or bush, destroying everything in their way.
Task 3: Fill in the table.
Topic Generalization Detailed Information
harmful effects widespread destruction flooding loss of lives damage to property
causes an earthquake, a landslide, or a violent volcanic eruption A major fault slips. The displaced rock pushes water.
possible locations in the Pacific Ocean’s “Ring of Fire” a geologically active area where structural shifts make volcanoes and earthquakes common
Task 4: Brainstorm about a certain disaster’s causes, harmful efects, and measures to take.
Task 5: Complete the essay in 100-120 words. Make sure it is informative, clear, and objective.
A wildfire is a large fire that spreads over woodland or bush, destroying everything in their way. It can be both natural and man-made. It is not limited to a particular continent or environment. It spreads so fast that hectares of woods are burnt into ashes in a wink. Due to the large-scale damage it can cause, you’d better have a basic survival kit and learn some survival skills. What’s more, if you are caught in a wildfire, what matters most is to stay calm and use a wet cloth to cover your nose and mouth before moving.
