《Unit 1 The world of our senses--- Project》教学课例

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名称 《Unit 1 The world of our senses--- Project》教学课例
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科目 英语
更新时间 2014-08-12 17:19:23

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课件20张PPT。Shark attacksProjectBasking sharkShark SpeciesGreat whiteShark SpeciesWhale sharkShark SpeciesTiger sharkShark SpeciesBlue sharkShark SpeciesWhat are Sharks?
Sharks are fish that have been living around us since the dinosaurs. Males are called “Bulls” .
Females are called “Cows” .
Baby Sharks are called “Pups”.Other shark facts:
Sharks have five to seven gill slits. Many sharks must keep moving in order to breathe,that is, in order to keep water moving past their gill slits but this is not true for all species. Nurse sharks, for example, can lie still and fan their gills to bring oxygen-rich water across the slits. Because they lack a swim bladder, all sharks must swim in order to avoid sinking towards the ocean floor.The shark has senses specially adapted for the animal's life underwater.
Smell is a shark's most acute sense. About 70 percent of the shark's brain is used for olfactory (smelling)? functions. Experiments have shown that sharks can detect prey solely by smell, and the hungrier the shark is, the less stimulant needed to elicit a reaction. Sharks are sensitive to light and can detect certain objects even in dark water. Just like cats and other animals whose eyes ‘glow in the dark’.Sharks do have ears. A shark can detect sound waves and disturbances in the water.Sharks can also sense electric and magnetic fields. 1. Are sharks frightening?
2. How many different types of sharks are there in the
ocean? Do all of them attack humans?
3. Do sharks feed on humans if they have the choice?
4. What are the three types of shark attacks?
5. Why have shark attacks been increasing recently?Read the article, find answers to the
following questions;Three fierce sharks :
Fill in the informationthe great white shark
the tiger shark
the bull sharkRead the text again and try to find out the topic sentence of each paragraph. (The topic sentences may appear at the beginning of the paragraph, or at the end. )
Paragraph 1: 30 out of 400 sharks may attack humans.
Paragraph 2: The chances of being attacked by a shark is very small.
Paragraph 3: There are three types of shark attacks.
Paragraph 4: Advice on helping reduce the chances of being attacked.
Paragraph 5: Three tips to help you when attacked by a shark.
Paragraph 6: Do not be frightened by sharks.Four pieces of advice to avoid shark attacks: Don’t swim in the dark.
Don’t swim if you are cut or if you have a fresh wound.
Don’t wear bright clothing or jewellery.
Try and stay in groups.
Three tips to help you if a shark attacks you Don’t panic.
Hit the shark on the nose.
Stick your finger in the shark’s eye.Useful phrases
mainly because
two other sharks
the chances of being
attacked
4. compared to
5. many more people
6.the low number
7.feed on
8. be fit to do
9.wait for sb to do
10.the latter two 11.follow the advice
12.have a fresh wound
13.be more likely to be deadly
14.over a long distance
15.wear bright clothing
or jewellery
16.hit the shark on the nose
17.stick your finger in the
shark’s eye
18.30 times greater
He has much _______ of winning the first prize.
2. The chances are a hundred to one against you,
it’s most ______ that you will succeed.
3. What does the little dog chiefly _____ _____?
4. Don’t hit him ____ ____ head!
5. Why not wear some flowers instead of _____
when you go to the ball?
chanceunlikelyfeed onon thejewelleryFill in the blanks, using the proper forms of the above words:Summarize the text1. Types of shark attacks 2. Advice on reducing the chances of
being attacked3. The tips to help you when attacked Do Parts part A, B and C on page 90 in Workbook.
Review words and phrases in this unit.