[10-20 18:18:21] 来源:http://www.67xuexi.com 高三英语教案 阅读:850次
Unit 4 Green world
The First Period
Teaching Aims
1.Learn and master the following words and phrases
2.Train the students’ reading ability.
Teaching Important Points:
1.Master the useful words and phrases in the text.
2.Improve the reading ability of the students.
Teaching Difficult Points:
1.Help the students understand the reading material exactly.
2.Help the students improve their ability to use language.
Teaching Methods:
1.Fast reading to get a general idea of the reading material.
2.Careful reading to get the detailed information.
3.Pair or group work to make every student take an active part in class.
Teaching Aids:
1.the multimedia
2.the blackboard
Teaching procedures
Step 1 Pre-reading
Why was Carl Linnaeus important to the history of botany as a science?
His system of grouping plants in families was unique, which based on the arrangement of the male and female organs in the flowers.
While-reading
Step 2 Fast reading
How many people are mentioned in the passage?
Carl Linnaeus Daniel Solander Joseph Banks Captain Cook
Step 3 Careful reading
1. Before Linnaeus botany was ________.D
A.studied by doctors B.unknown to anyone C.fully developed D.a branch of medicine
2. Some economic species plants such as____ could help to develop local economies.C
A.rose and peony B.tea and apple C.cocoa and hemp D.Cocoa and lemon
3. It was ____ who made Kew a centre of scientific and economic research.A
A.Joseph Banks B.Captain Cook C.Linnaeus D. Daniel Solander
4.Paragraph one of the text mainly tells us ___ .C
A.the importance of botany B.how to classify plant species into groups
C.Linnaeus’contribution to botany D.Linnaeus’discoveries about different species
5.Captain Cook made ___voyages altogether around the world. C
A.one B.Two
C.Three D.four
step 4. Post-reading
1. How did scientists classify plants before Linnaeus?
Some scientists classified plants into herbs and trees, or according to the shape of the fruit, or whether they had flowers or not.
2. What were the goals of James Cook’s first voyage around the world?
To study the passing of the planet Venus across the sun; to record, classify and describe all plant and animal life observed during the trip; to search for an unknown southern continent.
3. Why did Joseph Banks have to supply his own money to equip part of the expedition?
Because the government would not pay for such a new field of science as botany.
4. What could be a possible explanation for the name “strawberry”?
When people plant strawberry, they spread straw under the fruit to reduce the necessary amount of watering.