2019-2020年高中英语Unit21Lesson3EpidemicsExplained教案北师大版选修7.doc

2019-2020年高中英语 Unit21 Lesson 3 Epidemics Explained教案 北师大版选修7
一 教学设计,目的和思路、
1. 教材内容说明
Epidemics explained 是北师大版教材选修模块7 的最后一个单元中的阅读课,介绍瘟疫在历史上的流行和发展, 文章生词量大, 有一定的教学难度.
2. 教学目的
学生通过阅读课文, 了解文中一些科普知识, 学会描述瘟疫的特点, 掌握阅读科普文章的一些方法
3. 课堂形式
提倡学生自学, 以检查预习, 合作讨论, 你说我猜的形式学习, 体现学生学习的主动性, 还课堂以学生
4. 教材内容的加工处理
用相关插图, 图表等直观的教学形式, 让学生能更快理解课文; 必要的阅读指导,有利于学生技巧的形成; 相关文章的阅读, 能扩大学生知识面; 一些直观的教具如红丝带和抽象的音乐, 希望培养学生的人文素质和高尚情感

二 教学过程简述
1. 布置学生预习
包括读单词, 找出文中数字的含义, 简单口头描述各次瘟疫的特点,做好文中的一道涉及段落补全的练习

2. 课文导入
包括简介和听英文歌曲 “Tears in heaven”, 讨论死亡的原因, 以及有哪些常见的瘟疫

3. 课文的阅读和学习
Step 1: 阅读标题, 预测文章主题,同时找出文中主要瘟疫
Step 2: 讨论数字在文中不同的含义, 进一步了解和熟悉课文
Step 3: 进一步阅读文章, 了解造成瘟疫的元凶---病毒;描述瘟疫的传播途径, 找出各次瘟疫造成的巨大影响; 描述和猜测不同的瘟疫
Step 4: 完成段落补全练习, 介绍相关方法

4. 点出阅读技巧

5. 读一段有关爱滋病对儿童危害的文字, 提示我们应该做点什么
课堂的延伸和升华
Step 3 : Reading Strategies: how to read a science article
1. Read the title carefully
(1) To present question 1
What’s the main idea of the text?
A. New health threats is on the rise.
B. A lot of epidemics happened in history.
C. SARS used to be out of control, now people are trying to stop it on the track.
D. We should pay more attention to our health.
(2) We can predict what will happen in the text from the title
In this text, some epidemics in the history will be talked.
(3) Give more titles and ask the Ss what will be talked
A. Epidemics
B. Epidemics and economy
C. SARS
D. The history of the Black Death

2. Read the text fast and get the general idea and basic information
(1) To present question 2
Read the following graphic and try to tell which epidemics are described?
(To see the PPT.)
(2) We will try to know some basic information about epidemics in history.
Name of the epidemics
Time
Place
Justininian’s Plague (bubonic plague )
500-550AD
North Africa, the Middle East, Europe
The Black Death
1330
Europe, Asia, Africa, the middle East
The Great Flu Epidemic (The Spanish Flu)
1918
Similar as the Black Death
SARS
xx/xx
China , Canada, Hong Kong,---

3. Read the text carefully and understand related science terms
In this text, a lot of medicine words are involved.
(1)To present question 3
What does the word “affect” mean in the 5th paragraph?
A 影响 B效果C感染D死亡
(2)Now read the text carefully and plete the sentences using medicine words in the text:
1. Bacteria and __________(病毒)have been around since the beginning of life on Earth.
2. It’s important to look at the __________(传播)of diseases throughout history to discover the __________(原因)and __________(影响) of epidemics.
3. Another epidemic __________(开始) and __________(传播)in similar conditions was the Great Flu. It __________(侵袭)near the end of the first World War and __________(持续)after the war.
4. Doctors weren’t sure how to __________(治疗)or __________(预防)it and since most people had no natural __________(防御)against the disease, it was harmful to doctors.
5. One half to one third of the population was __________(死于)to the Black Death. Less populated areas were less severely感染).
6. SARS epidemic quickly __________(扩大)across the globe. Health experts worked together to __________(阻止)the virus in its __________(路径).
7. It __________(席卷)North Africa, the middle East and Europe.
(3)While doing these kind of exercise, explain some words such as “track”.

4. Try to know more science knowledge through reading the text carefully
(1)To present question 4
The Black Death spread rapidly in Asia and Europe because_________
A It was the terrible bubonic plague that returned.
B There were so many people in these areas.
C At that time, people didn’t know how to treat it.
D People suffered from the bad climate , the war and hunger. There were so many people and they didn’t have daily health care.
(2)To show a picture to demonstrate
(3) To answer more questions about science knowledge
l Why do we say epidemics have been with us for thousands of years? (ppt)
l Why was bubonic plague one of the key cause in the fall of the Roman Empire?
l How did SARS spread from Hong Kong to Canada, Vietnam and Singapore?
l Why did many doctors and nurses bee ill with SARS ?

5. To figure out the development of the text
(1)To introduce sequencing exercise (ppt )
(2)To present question 5
Read the whole text and match the five paragraph(A-E) with gaps 2,4,7,9 and 11 in the text
(3) Read the text with gaps to get the general idea and see how it develops

Epidemics throughout history
the Black Death
the Great Flu
SARS
Justinian’s Plague

(4)To analyze the beginning and ending words of each paragraph

beginning words
ending words
Paragraph 1

history, causes and effects of
Paragraph 2 (E)
-historical accounts, Justinian’s plague
-swept through---
Paragraph 3
---now think Justinian’s Plague, bubonic plague
-causes of the fall of the Roman
Paragraph 4 (C)
-bubonic plague returned
-the disease(Black Death) spread worldwide
Paragraph 5
--was lost to the Black Death

Paragraph 6

It( the Spanish flu ) struck
Paragraph 7 (A)
It (---)be the most acute epidemic in history –the flu
-has been forgotten by history
Paragraph 8
Haven’t forgotten, SARS
-spread the disease to----
Paragraph 9 (D)
Over 9 months---global cases--
-the outbreak alarming for--
Paragraph 10
No one really knew much-
- harmful,--hospital staff---made up ---
Paragraph 11 (B)
Although ---SARS
quickly expand--
--experts –stop the viruses in its track

6. Conclusion
l Read (Find ) the title carefully
l Read the text fast and get the general idea
l Read the text carefully and understand related science terms
l Try to know more science knowledge through reading the text carefully
l To figure out the development of the text
Step 4:Read the text again and give your own questions using the strategies we have learnt
1. Show an example about giving questions
Questions about general idea
What can be inferred from the text?
A. Epidemics develops with the development of human beings
B. An old epidemic will cause another one
C. Epidemics may disappear one day due to the development of medical science
D. Epidemics can cause a lot of deaths.

2. Show the Ss ways to ask questions
l The purpose of the writer is to---
l The story tells us that----
l According to the text,---- ---
l It can be learned from the text that----
l The best title for the text would be---
l Which of the following statement is true (false)?
l Arrange the event in the text according to the correct order.
l After reading the text, we know that---
l The word “---” in the text means-----
l What’s the Chinese meaning of these words?
l The word “---”can be replaced by---
l Why----- ?
l What is the reason for-----?
l What is----?
l We learn from the text that -----

3. The Ss are asked to give out their own questions in groups
Group 1-2: questions about basic details in the text
Group 3-4: questions about words
Group 5-6: questions about science knowledge
Group 7-8: questions about sequencing

4. Ask the Ss to change their questions and answer it.
Good question: 1o score Good answer: 6 score
Ordinary question: 7 score Ordinary answer : 4 score
Bad question: 4 score Wrong answer: 2 score

Step 5: Homework
Read another science article and give 5 questions of your own

2019-2020年高中英语 Unit21 欲度假拜访友人函书信通
October 6, xx 
Dear Vanessa, 
How have you been lately? Is everything going okay at work? I have been pretty busy over the last few weeks Fortunately, things are finally slowing down, so I can take a short vacation. Since I haven’t been to Los Angeles before, I’ve decided to fly out there at the end of this month. Of course, I would like to see you while I’m there. 
I’ll arrive in LA on the 21st of this month and I’ll stay until the 25th. When would it be convenient for us to meet for lunch or dinner? Also, if you have any particular remendations regarding places to see, please let me know. I’m looking forward to seeing you soon. 
Sincerely, 
Richard 
亲爱的薇妮莎： 
近来好吗？工作还顺利吧？我最近几个礼拜以来都非常忙碌。幸亏事情将要告一段落了，因此，我将去度几天假。因为我以前从没到过洛杉矶所以我决定在这个月底搭机到那里去。当然，我在洛杉矶时很想和你见个面。 
我将在这个月的二十一号到达洛杉矶，在那里待到二十五号。我们什么时候方便见个面一起吃顿午餐或晚餐呢？此外，如果你对我们见面的地方有任何特别的建议，请告诉我。我期待在不久后就能与你见面。 
理查　敬上 
xx年10月6日
字词解说：
over/in/for/during the last/past+数字+时间名词 
过去……时间以来
注意:
上述短语常与现在完成式或现在完成进行式并用。
例;Jane has been sick for the past three days.
(珍过去三天以来一直在生病。)
2. fortunately ['faafanatly ad.幸运地，幸亏
3. slow down 减少，趋缓，慢下来
例:Business has slowed down a lot sincethe country wentInto a recession.
(该国自从经济不景气后商业活动就趋缓了很多。)
4, take a vacation休假
例:I haven't taken a vacation in several months.
(有好几个月我都没有去度过假。)
5. convenient [karivi刘anti a，方便的
例;What's the most convenient place for us to meet?
(我们碰面最方便的地点是哪里呢?)
6.remendation 建议，推荐
例:The consultant
gave the boss several remendations.
(该顾问给老板几个建议。)
7. regarding .关于
= concerning
=about
例:I have some questions regarding the issue you just brought up.
(有关你刚才提出的议题我有一些问题。)