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人教英语必修2教案:unit4《wildlife protection—warming up and reading》


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Unit 4 Wildlife protection 教学设计 Period 1: Warming up and reading
Teaching Aims

To talk about endangered species

To read about wildlife protection Procedures

I. Warming up by learning about animals
Look at the photos below and listen to me telling you about the animals, the endangered animals.

The Giant Panda is a mammal now usually classified in the bear family, beside, that is native to central China.
The Giant Panda lives in mountainous regions, like Sichuan and Tibet. The Giant Panda is the symbol of the World Wildlife Fund (WWF), a conservation organization. Toward the latter half of the 20th century, the panda also became somewhat of a national emblem for China, and is now used in Chinese gold coins. Giant Pandas are an endangered species, threatened by continued loss of habitat and by a very low birthrate, both in the wild and in captivity. About 1,600 are believed to survive in the wild. Milu deer is a Chinese deer. It has a long tail, wide hooves, and branched antlers. Another Chinese name for it is “four unlikes,.” because the animals were seen

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as having the horns of a stag, the neck of a camel, the foot of a cow, and the tail of an ass. These animals were first made known to Western science in the 19th century, by Father Arm and David, a French missionary working in China. At the time, the only surviving herd was in a preserve belonging to the Chinese emperor. The last herd of Milu deers that remained in China were eaten by Western and Japanese troops that were present at the time of the Boxer Rebellion. These deer are now found in zoos around the world, and a herd of Milu deer was reintroduced to Dafeng Reserve, China in the late 1980s. They are classified as “critically endangered.” in the wild, but do not appear to have suffered from a genetic bottleneck because of small population size. A tiger is a large cat famous for its beautiful fur of orange striped with black. Tigers live in Asia and are becoming very rare. This is due to people hunting them for their fur and destroying the forests they live in. II. Pre-reading 1. Defining wildlife What does the world wildlife mean? The term wildlife refers to living organisms that are not in any way artificial or domesticated and which exist in natural habitats. Wildlife can refer to flora (plants) but more commonly refers to fauna (animals). Needless to say, wildlife is a very general term for life in various ecosystems. Deserts, rainforests, plains, and other areas—including the most built-up urban sites—all have distinct forms of wildlife. Humankind has historically tended to separate civilization from wildlife in a number of ways; besides the obvious difference in vocabulary, there are differing expectations in the legal, social, and moral sense. This has been reason for debate throughout recorded history. Religions have often declared certain animals to be sacred, and in modern times concern for the environment has provoked activists to protest the exploitation of wildlife for human benefit or entertainment. 2. Make a list of other endangered wildlife in China that is being protected. 3. Pre-reading questions:

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4. Reading to the recording Now turn to page 26, listening and reading to the recording of the text. Try to keep pace with the native reader, making your reading resemble that of the reader, in speed, in intonation and in pronunciation. III. Reading 1. Reading and getting information Now you are to read the text for information to fill in the form.

Animal 1 antelope 2 elephant

Problem hunted for its fur killed for its habitat

Solution not given farmers paid to promote

tourism, not kill elephants 3 monkey rainforest being destroyed find useful drugs to protect rainforest 2.Reading and underlining Next you are to read the text and underline all the collocations at the same time.

HOW DAISY LEARNED TO HELP WILDLIFE long to do …, wake up, find…by one’s bed, a flying carpet, fly away, be killed for…, turn around, in relief, burst into laughter, become endangered, destroy the farm, take photos,

hunt…for…, make money for…, as a result, in thick rain forest, protect…from…, rub…over…, a powerful drug, pay attention to…, take…home IV. Closing up by matching animals to five risk categories Different endangered species appear on different endangered species lists. And people who are trying to protecting animal use the following five risk categories to group the unlucky animal. Now in groups of four try to group all the unlucky animals found in China.

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List of Unlucky animals found in China 中国不幸动物分类名录 EXTINCT(灭绝动物)-A species formerly indigenous to Canada that no longer exists anywhere. EXTIRPATED(根绝动物)-A species no longer existing in the wild in Canada but occurring elsewhere. ENDANGERED(濒危动物)-A species threatened with imminent extinction or extirpation throughout all or a significant portion of its Canadian range. THREATENED(危急动物)-A species likely to become endangered in Canada if the factors affecting its vulnerability are not reversed. VULNERABLE(弱势动物)-A species particularly at risk because of low or declining numbers, small range or for some other reason, but not a threatened species.

Period 2: Learning about Language
Teaching Aims
To learn about The Present Progressive Passive Voice

To discover useful words and expressions To discover useful structures.

Procedures

I. Warming up by acting a text play
Good morning class. To begin with we shall put our text HOW DAISY LEARNED TO HELP WILDLIFE on stage, that is, to act out our story. Now the class acting team with their text play of HOW DAISY LEARNED TO HELP WILDLIFE!

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II. Discovering useful words and expressions

1. Doing vocabulary exercises

Turn to page 28 and do the vocabulary exercises 1, 2 and 3. You can simply write your answers in the blanks on the very page of 28.
2. Playing a game Let’s go on to play the game described on the top of the page 29. The following sentences are to be passed on. ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲ Plant native plants in your backyard. Do not dump weeds in the bush. Build a frog pond in your backyard. Put your rubbish in the bin. Leave your pets at home. Do not take anything out of the park. Encourage your friends to keep patches of bush as wildlife habitats. Join a community group and offer to do voluntary work. Find out about conservation activities happening in your local area. Participate in local clean-up, tree planting and weed control activities. Learn About Threatened Species Look out for wildlife Refuse to buy any rare or endangered plant or animal

product. ▲ Be alert and drive slowly at dawn and dusk in rural areas where wildlife may be active.

III. Studying The Present progressive Passive Voice

1. Passive Voice The passive voice is used when focusing on the person or thing affected by an action.

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The Passive is formed: Passive Subject + To Be + Past Participle It is often used in business and in other areas where the object of the action is more important than those who perform the action. For Example: We have produced over 20 different models in the past two years. Changes to: Over 20 different models have been produced in the past two years. If the agent (the performer of the action) is important, use “by.” For Example: Tim Wilson wrote The Flight to Brunnswick in 1987. The Flight to Brunnswick was written in 1987 by Tim Wilson.
Only verbs that take an object can be used in the passive.

The following chart includes sentences changed from the active to the passive in the principal tenses. Active They make Fords in Cologne. Passive Fords are made in Cologne. Time Reference Present Simple Present Susan is cooking dinner. Dinner is being cooked by Susan Continuous Dubliners was written by James James Joyce wrote Dubliners. Joyces. They were painting the house when The house was being painted Past Continuous I arrived. when I arrived. 20 models have been Present Perfect models in the past two years. produced in the past two years. Intention Past Simple

They have produced over 20 Over

They are going to build a new A new factory is going to be built Future factory in Portland. I will finish it tomorrow. 2. Passive Verb Formation in Portland. It will be finished tomorrow.

with Going to Future Simple

The passive forms of a verb are created by combining a form of the “to be verb.” with the past participle of the main verb. Other helping verbs are also sometimes present: “The measure could

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have been killed in committee.” The passive can be used, also, in various tenses. Let’s take a look at the passive forms of “design.” Auxiliary Tense Subject Singular Present Present perfect Past Past perfect Future Future perfect The car/cars The car/cars The car/cars The car/cars The car/cars The car/cars is has been was had been will be will have been is being was being Plural are have been were had been will be will have been are being were being designed. designed. designed. designed. designed. designed. designed. designed. Past Participle

Present progressive The car/cars Past progressive The car/cars

IV. Reading and identifying

Since you are clear about Passive Verb Formation, go back to page 26 and scan the text for all the examples of The Present Progressive Passive Voice.

We’re being killed for the wool beneath our stomachs. Our fur is being used to make sweaters for people like you. …

Now try to put the following sentences into The Present Progressive Passive Voice.

▲ ▲ ▲

They are producing this new drug. Antelope is looking at her. They are killing us for the wool.

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▲ They are destroying the farm.

V. Discovering useful structures

To consolidate your learning of The Present Progressive Passive Voice, turn to page 29 and do the grammar exercises 2 and 3.

VI. Closing down by playing a game To end this period go to page 29 and play the game called “Tell me what is happening?” Ask questions containing The Present Progressive Passive Voice.

Period 3: Using Language
Teaching Aims
To read and listen about ANIMAL EXTINCTION To speak about helping the dodo To write to WWF

Procedures

I. Warming up by reading to the tape
Let’s warm up by reading aloud to the recording of the text ANIMAL EXTINCTION on page 30.

II. Listening about ANIMAL EXTINCTION
Now I’d like to tell you something about DINOSAURS and finish exercise 3 and 4 on page 30. Have you ever heard of the dodo, an animal that has also disappeared from the earth?

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The Mauritius Dodo (Raphus cucullatus, called Didus ineptus by Linnaeus), more commonly just Dodo, was a metre-high flightless bird of the island of Mauritius. The Dodo, which is now extinct, lived on fruit and nested on the ground. Next we are going to listen to the tape and do exercises 2 and 3 on page 30 on dodo.

■In formation about Dinosaur Dinosaur means terrible lizard in Latin. They were called that because people used to think dinosaurs were lizards, but they were not. Dinosaurs first appeared about 200 million years ago. 65 million years ago, many kinds of dinosaurs became extinct. Birds are a special type of dinosaur and they were the only kind to live until today. There were many kinds of dinosaurs. Some ate plants and some ate meat. The largest dinosaurs were plant-eaters like apatosaurus and brachiosaurus. They were the largest animals to ever walk on dry land. Other plant-eaters had special weapons to help them fight off the meat-eaters. For example, triceratops had three horns on its face, ankylosaurus was covered in boney plates, and stegosaurus had spikes on its tail. The meat-eaters all ran around on their back legs like people do. Some were very large, like tyrannosaurus, and some were small, like compsognathus. It was the smaller sized meat-eaters that evolved into birds. One of the first birds was archaeopteryx, but it looked half like a dinosaur. There were large flying reptiles that lived at the same time as dinosaurs called pterosaurs, but they were not closely related to dinosaurs. There were also many kinds of large reptiles that could swim, like ichthyosaurs and pleisiosaurs, but they weren’t closely related to dinosaurs either. III. Reading and copying Next we shall go back to the text ABOUT DINOSAURS on page 30 again to read it and copy down

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all the expressions into your notebook. Useful phrases from ABOUT DINOSAURS During the history of the earth, live on the earth, tens of millions of years ago, came into being, eggs of five species, a rare new species, a bird-like dinosaur, climb tree, tell…from…, die out, hit the earth, put…into the air, get hot, live on, know for sure, in the same way, listen to the story about…, disappear from… IV. Reading to answer questions Read the questions in the table below and scan the text to answer them. When did dinosaurs live on earth? When did dinosaurs die out? How did dinosaurs die out? V. Speaking in pairs about helping the dodo Zhao Yannan: The Dodo was driven to extinction by sailors when they discovered the island of Maritius in the 17th century. It is one of the first documented human induced extinctions. Zhao Yanfei: What a pity that we can not find any dodo now. Imagine we are with the dodo, Yannan, what could we do to help it? Zhao Yannan: Then I would intend to hide it in a cave, so that sailors could not find it. Zhao Yanfei: If I were there, I would try to trap them as they were catching and killing the dodo. Putting man who is harmful to the dodo in a cage and attacking him is the best way to protect and save the dodo. Zhao Yannan: I’d like to and I’m ready to, teach man how to be friends with animals, including the dodo. The man and the dodo can be living side by side on the earth. They can be happy together. ZhaoYanfei: I would rather not tell you what I think of man. He is selfish and cruel. He cares only for himself and that is why so many animals have disappeared from this earth. Putting the bad men in a cage is the only way out, I am sure.

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VI. Closing down by writing to WWF All right now, boys and girls, to end this period, next you are to write a letter or an email to WWF asking them to help you save your endangered animal. Give a Sample writing to the class after their writing.

附: 备课资料
What is WWF? WWF, the global conservation organization was originally known as World Wildlife Fund. In 1986, it changed its name to World Wide Fund For Nature (except in the US and Canada) to better represent the spread of its work. It was founded on September 11, 1961 by, among others, the biologist Sir Julian Huxley, Prince Bernhard of the Netherlands, Max Nicholson and the naturalist and painter Sir Peter Scott who designed the original black and white panda logo. It is one of the world’s largest environmental organizations, with a network of offices in nearly 60 countries and a secretariat in Gland, Switzerland. Probably the most famous name associated with WWF is HRH The Duke of Edinburgh. The Duke was the first President of WWF-UK from its foundation in 1961 to 1982, International President of WWF (1981-1996), and is now President Emeritus. WWF is dedicated to stopping the degradation of the planet’s natural environment and building a future in which humans live in harmony with nature, by: ▲ ▲ ▲ conserving the world’s biological diversity, ensuring that the use of renewable natural resources is sustainable, promoting the reduction of pollution and wasteful consumption.

WWF has a factual, science-based approach to conservation, which focuses on six priority issues of global concern: forests, oceans and coasts, fresh water, endangered species, and the insidious threats of toxic chemicals and climate change. For each of these issues, WWF has developed measurable targets and runs more than 1,200 field projects around the world in any year.

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III. Antelope The antelope are a group of herbivorous African animals of the family Bovidae, distinguished by a pair of hollow horns on their heads. These animals are spread relatively evenly throughout the various subfamilies of Bovidae and many are more closely related to cows or goats than each other. There are many different species of antelope, ranging in size from tiny to very big. They typically have a light and elegant figure, slender, graceful limbs, small cloven hoofs, and a short tail. Antelope have powerful hindquarters and when startled they run with a peculiar bounding stride that makes them look as though they are bouncing over the terrain like a giant rabbit. Some species of antelope can reach speeds of 60 miles per hour (100 kilometers per hour), making them among the fastest of land animals. IV. Elephant Elephantidae (the elephants) is the only extant family in the order Proboscidea. Elephantidae has three living species: the Savannah Elephant and Forest Elephant (which were collectively known as the African Elephant) and the Asian Elephant (formerly known as the Indian Elephant). During the period of the ice age there were more species, which are now extinct.
Elephants are the largest living land mammals. At birth it is common for an elephant calf to weigh 100 kg (225 pounds). It takes 20 to 22 months for a baby elephant to mature to birth, the longest gestation period of any land animal. An elephant may live as long as 60 to 70 years. The largest elephant ever recorded was a male shot in Angola in 1974, weighing 12000 kilograms or 26400 pounds.

Prehistoric human beings have been known to eat elephants, as recent findings of animal remains in central China show. The elephant is now a protected animal, and consumption is prohibited around the world. V. Monkey A monkey is any member of two of the three groupings of simian primates. These two groupings are the New World and Old World monkeys. Because of their similarity to monkeys, apes such as chimpanzees and gibbons are sometimes incorrectly called monkeys. Also, a few monkey species have the word “ape.” in their common name. Because they are not a single coherent group,

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monkeys do not have any important characteristics that they all share and are not shared with the remaining group of simians, the apes. Monkeys range in size from the Pygmy Marmoset, at 10 cm (4 inch) long (plus tail) and 120 g (4 oz) in weight to the male Mandrill, almost 1 metre (3 ft) long and weighing 35 kg (75 lb). Some are arboreal (living in trees), some live on the savanna; some eat fruit, some eat leaves, and some eat insects; although most have tails (sometimes prehensile), others do not; some have trichromatic colour vision like that of humans, others are dichromats or monochromats. Although both the new and old world monkeys, like the apes, have forward facing eyes, the faces of Old World and New World monkeys look very different. To understand the monkeys, therefore, it is necessary to study the characteristics of the different groups individually.

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