(共21张PPT)
学科学段：高中英语
课程名称：Module 4
Great Scientists
年级学期：必修四
教材版本：外研社
主讲教师：马 丽
单位：四川省隆昌市第七中学
What’s wrong with
the children in this
area
杂交水稻之父
The Student Who Asked Questions
Agriculture is the practice or science of farming.
Rice is the staple food that we eat every day.
A sterile plant can’t produce a seed or fruit.
The yield of this year is higher than that of last year
If we cross an apple tree and an orange tree, we will
produce a new plant, which is called a hybrid.
A species is a type of a plant or an animal.
agriculture staple
sterile yield
hybrid cross
species
A. As a young teacher, he began experiments in
crop breeding.
B. As a boy, he was called “the student who asked
questions”.
C. He discovered a special type of rice.
D. Yuan Longping is a leading figure in the
rice-growing world.
E. The yield of the new hybrid rice is much greater
than that of other types grown in Pakistan.
F. His discoveries increased Chinese rice production.
D
B
A
C
F
E
1
2
3
4
5
6
try to find the main idea of each paragraph:
Fast Reading
Careful Reading
Read paragraph 1 and try to answer the question.
What kind of figure is Yuan Longping
Para.1
In the rice-growing world, the Chinese scientist,
Yuan Longping, is a leading figure.
As a boy,
As a teacher,
As a college student,
In 1966,
In 1970,
he was educated in many schools and was given a nickname.
he studied agriculture .
he began experiments in crop breeding.
the results of his experiments were published.
a naturally sterile male rice plant was discovered.
Careful Reading
What did he do
Para.2-4
the new hybrid rice
high production
3. Yuan’s rice __________________ other countries.
Chinese rice production _______ by 47.5% in the 1990’s.
2. 50,000 square kilometers of rice fields
_____________________ growing vegetables
and other cash crops.
5-6
What are the advantages of hybrid rice
rose
were converted to
was exported to
Introduction
Brief Introduction
Life Experience
Research Achievements
Hints(提示)
The Chinese scientist, Yuan Longping, is …
He was … in China.
As a boy he was …
As a college student ... And as a young teacher ...
His research was … by the government.
As a result of … by 47.5 percent in the 1990’s.
Yuan Longping’s rice was … to …
Retell the life and achievements of Professor Yuan. (in 100 words).
Homework
Try to write an introduction about your impression of Yuan Longping.Module 4 Great Scientists
Reading and vocabulary
Teaching Aims:
1. To grasp the important words :agriculture; sterile, staple, hybrid,yield, species and so on.
2. To improve reading and speaking skills and learn to introduce a leading figure.
Ability Aims:
1. To understand the text and the structure of the text
2. To retell the text according to key words from the text.
The difficult points:
Retell the text according to key words from the text.
The important points:
Understand the structure of the text.
Teaching Procedures:
Step I Lead-in
1. See a video that is related to agricultural crisis , then ask students one question: What ‘wrong with children in this area？
2. Introduce some pictures of Yuan Longping.
Step II Pre-reading
1. Show the title of the text and ask one question: who is the student
2. Present some new words by showing pictures.
Step III While-reading
1. Fast Reading
Try to find the main idea of each paragraph:
A. As a young teacher, he began experiments in crop breeding.
B. As a boy, he was called “the student who asked questions”.
C. He discovered a special type of rice.
D. Yuan Longping is a leading figure in the rice-growing world.
E. The yield of the new hybrid rice is much greater than that of other types grown in Pakistan.
F. His discoveries increased Chinese rice production.
1._____ 2._____ 3.______ 4.______ 5.______ 6.______
2. Careful Reading
(1) Read paragraph 1 and try to answer the question.
What kind of figure is Yuan Longping
____________________________________
(2) Read paragraph 2-4 and find out what he did in his life.
As a boy,__________________________________________
As a college student,_________________________________
As a teacher,_______________________________________
In 1966,___________________________________________
In 1970,___________________________________________
(3) What kind of rice did Yuan Longping develop
How did he develop it
What is the result of the new rice
(4)Read paragraph 5-6, and fill in the blanks.
1. Chinese rice production _______ by 47.5% in the 1990’s.
2. 50,000 square kilometers of rice fields _________growing vegetables
3. Yuan’s rice __________________ other countries.
Step IV Summary
Help students to summarize how to introduce Yuan Longping.
Step V Pair-work
Retell the life and achievements of Professor Yuan.
Hints(提示)
The Chinese scientist, Yuan Longping, is …
He was … in China.
As a boy he was …
As a college student ... And as a young teacher ...
He thought that the key …
His research was … by the government.
As a result of … by 47.5 percent in the 1990’s.
Yuan Longping’s rice was … to …
Step VI Homework
Try to write an introduction about your impression of Yuan Longping.
教学反思:
通过播放非洲儿童饥饿的视频,引导学生去思考哪位科学家对摆脱饥饿有巨大的贡献,充分地调动了学生的积极性。同时，在读前利用一些图片及解释帮助学生扫除阅读障碍，让学生学会结合上下文来猜词义。整个课堂以如何介绍一个伟大的科学家为主线，有序地由浅到深地引导学生通过阅读来获取有效信息，并进行整合来转换为自己的内容。但其中还有一些不足点，课堂上没能有效地调动学生的积极性，其次，让学生上台介绍袁隆平的时间过短。总之，在教学中我还应该不断地学习。
