课件105张PPT。Table of ContentsHow do you understand the proverb “One man’s
meat/trash is another man’s poison/treasure”? Period IMilk, lobster, and peanuts can be good to some
people but allergic to someone else.What’s good for a person is not necessarily the same with another, and vice versa.Can you give an example?“One man’s meat/trash is another man’s poison/treasure.” Suggested answer:Frogs can be helpful…Frogs can be harmful…Do you think frogs are useful or harmful animals? In what way? Discussion We cannot simply say frogs are useful or harmful because every coin has two sides. The advantages of frogs are that they can eat harmful insects and be protective of the crops, and some parts of them are medicine materials; on the other hand, some of them are poisonous to human being and sometimes they are kind of noisy. Suggested answer: Here are some useful words and expressions you may use.The coming article is about the coqui, a kind of frog. Read the following sentences and guess if they are true (T) or false (F) before you read the article.Now read the article to check your answer.FFTTT A tiny frog with a sharp noise has invaded the Big Island and won’t shut up.—Associated Press The coqui frog population has been increasing in Hawaii since 1988, but just recently exploded.—Department of Agriculture, HawaiiWhat does the Big Island refer to?What dose this sentence imply?Hawaii Experts say the American state of Hawaii has been invaded by a small frog called the coqui. There may be millions of the small frogs in Hawaii. However, they do not belong there.invade income, inborninvade -vade= to goin- + -vade= ? They are normally found in the Caribbean island of Puerto Rico and in the south-eastern United States. The coqui frogs are harming Hawaii’s environment. And the extremely loud noise they make is causing problems
for Hawaiian citizens and visitors.Can you find southeast in the picture?southeast The coqui invaders arrived in Hawaii about ten years ago. They were believed to have been brought in accidentally in shipments of plants from Puerto Rico or Florida. Their numbers have sharply increased. They have quickly spread around the Hawaiian Islands, hidden in plants.What does shipment mean? The coqui is a brown frog about five centimeters long. During the day, the frogs hide in wet protected areas, such as under plant leaves. At night, the frogs move onto trees to feed, or to call to females.In their native Puerto Rico, local people celebrate coqui frogs. But in Hawaii, the foreign frog has been condemned as a harmful animal.protectprotectionThe frog is treated differently in different places. The coqui frogs are a major threat to Hawaii’s environmental system. The frogs eat thousands of insects every night. These insects are important for the reproduction of plants. And they are also important food for Hawaii’s native, rare birds.threat n.
Sb. or sth. is a threat if they are likely to harm or hurt you. The frogs are also affecting the tourism industry in Hawaii. Increasing numbers of hotels, visitors and local people have complained about the loud calls made by the coqui frogs. At night, the noise often makes it difficult for people to sleep. The call of the male coqui sounds
like: Ko-Kee! Ko-Kee! That is how they got their name.re + productionWhat is the noun of affect? The frogs do not have any natural enemies in Hawaii to reduce their population size. The warm weather permits them to lay eggs all year long. There are many efforts in Hawaii designed to stop the spread of the coqui. It is a crime to transport, sell or set the frogs free there.set freeCan you make up a sentence with crime, threaten and gun?He committed a crime
by threatening a girl
with a gun and robbed
her bag. The Hawaiian Department of Agriculture is trying to find an effective chemical that can be safely used to kill the frogs. For now, the frogs may only be caught by hand. The Hawaiian Department of Agriculture says the greatest threat to the economy and environment of the state is from harmful invasive groups of animals, like the coqui.invasive: adj. spreading
very quickly and difficult to stopCan you guess its meaning?Read the article carefully to complete the following chart.tinybrown5 centimeterswet protectedonto trees to feed, or to call to femalesKo-Kee! Puerto RicoFloridaHawaii10 yearsshipmentsLet’s check the work of Team 1increasedspreadthousands of insectsthe tourism industryto sleeptheir population sizetransportsellset the frogs freeeffective chemicalby handLet’s check the work of Team 2Suppose you’re a journalist. You are interviewing a
Hawaiian about the annoying frogs. Please ask and
answer questions based on Task 1Good morning. I’m Bob from CNN. I want to know something about the coqui frogs.Well, those troublesome frogs…Read the following sentences and decide which
of the choices best explains each of them.BCheck your understanding of the text.ACABGroup competition Challenge yourselfWork in groups to discuss the questions.5 minutes!2) How do you analyze the sentence “They
have quickly spread around the Hawaiian
Islands, hidden in plants” in the 3rd
paragraph?
What is “hidden in plants” used as?The frogs reproduce very quickly and get used to the environment in plants, which makes them difficult to be noticed.
Here “hidden in plants” is used as the adverbial of manner. 300 scores250 scores6) What suggestions can you offer to help
control the spread of the coqui?Find the natural enemies of frogs or create the effective chemical killing the frogs.400 scores3) In Puerto Rico, what is the local people’s
attitude towards the coqui frogs?
What about the people in Hawaii?
How about the author?
Find out the evidence in the text to
support your answers.People in Puerto Rico celebrate the frogs while the people in Hawaii condemn the frogs. The author thinks they are a major threat to environment and affecting tourism industry in Hawaii. Paragraphs 6-8.200 scores5) How do you understand the law “It is a
crime to transport, sell or set the frogs
free there”?
Can the law work?
To what degree?To trade or free the frogs is not permitted by law. The law perhaps will work to some extent because there might be some other ways for frogs to spread.200 scores4) According to the author, why is it hard to
reduce the population size of the coqui?
List the possible reasons.The frogs don’t have natural enemies in Hawaii; the weather is very suitable for their reproduction; the frogs can only be killed by hand.Why are the coqui frogs condemned as harmful animals?Because they are a major threat to environment and they are affecting tourism industry in Hawaii.100 scoresHomework Task 1
Finish Task 5&6 in Comprehending.Task 2
Preview Word Power and do the exercises.
Period IICheck your homework first!Get a piece of paper and draw a diagram to check your understanding of the whole text. You may follow the format below or create your own.Puerto Rico and Florida: Hometown/Native habitatMove to _______ by ________.harmful animalsshipmentsHawaiienvironmental
systemtourism
industrypeople’s
daily lifeDo you have any other idea?Suppose you are a tourist in Hawaii, being bothered by the loud calls of the coqui every night. Write a letter to the governor complaining about the situation.Dear Sir,
I am writing to you to complain about the noise or the loud calls of the coqui every night outside our hotel room, which keep me disturbed all night. And it is the same with the other tourists.
Therefore, would you please take this into consideration and help us out? We are looking forward to your reply.
Yours Sincerely,
Xiao BingFind the words from the article to match the following explanations. The first letter has been
given to you.a s s c ccidentallyharplypreadondemnm a r p t e ajorffecteduceermitransportffectiveWord Puzzleacrossdown①②Remember to cooperate!You and your partner will have different pieces of paper.
(Please keep it to yourself.) Now look at your piece of paper.
One describes the word and the other guesses it and fills in
the blanks.
For exampleStudent A①①Student BStudent A says:
One across.
It’s a cute animal.Student B says:
Dog?That’s right.doNever look at each other’s paper!Student A教师打印出本页给学生A③Student B教师打印出本页给学生BComplete the following sentences with the proper forms of the words you have got in Task 1.effectivepermitsaffectcondemnedsharplyaccidentallyspreadmajorreducedtransportChoose the right word from each group to complete each of the sentences. Change the form if necessary.A. The dog seems fierce, but he is .
B. You’re your eyes while reading in such dim
light.
C. Follow the directions carefully, or this medicine may
be .harmharmfulharmlessharmlessharmingharmfulship (n.)ship (v.)shipmentHe joined the army and was off to a training
camp.
B. A is a large boat for carrying people or
goods on the sea.
C. All his belongings were lost in .ship shippedshipmentA. Use an umbrella to yourself from the rain.
B. A policeman’s chief duty is the of the people.
C. As a mother, she’s too towards her daughter;
she should let her see more of the world.protectprotectionprotectiveprotectprotectiveprotectionenvironmentenvironmentalThose small factories are causing a lot of
pollution with all their noise and smoke.
B. A happy family provides a loving for
its children.environmentalenvironmentWe studied the process of in biology
class.
B. The land used to enough to feed us.
____________of computers has been doubled in the
last few weeks.reproductionproduceProductionA. He’s trying to learn more about the of lead.
B. An effective to kill the frogs is being searched
for.
C. In a shop you can buy medicines.chemistrychemicalchemistRead the following proverbs and try to translate them into Chinese. Consult your dictionary if necessary.1) The frog in the well knows nothing of the great ocean.2) Kill two birds with one stone.3) Don’t put the cart before the horse.4) Never offer to teach fish to swim.井底之蛙,所见不广。一石二鸟,一箭双雕。不要本末倒置。切忌班门弄斧。5) Care kills a cat.6) Love me, love my dog.7) Don’t count your chickens before they’re hatched.8) One swallow does not make a summer.好奇害死猫。爱屋及乌。蛋未孵化,莫数小鸡(不要过早地盲目乐观)。一燕不成夏。(不能单凭一个例子而下定论)。 Euphemism?[?ju:fimiz?m] is a figure of speech, the definition of which is the use of pleasant, mild or indirect words or phrases in place of more accurate or direct ones. The main purpose of using euphemism is to avoid hurting other people’s feelings.Euphemism Can you pronounce the word?For example:
On October 25, 1955, she went to sleep peacefully for
the last time.
Here “went to sleep” is a euphemism for “died”.What does it mean?Some other examples
“A mentally retarded child” is said to be “a bit slow for his
age”.
“Second childhood” is a euphemism for “old age”.
“A maid” is said to be “a domestic help”, or “a day-help”.Do you know any other euphemisms for “die”?go to meet their makerkick the bucketin a better placego into the westwith the ancestorsNow work with your partner to complete the following table.cleanerdie a slow studenttoiletbetween jobspoorCan you give some other examples of euphemisms?
Have a try!lie→ to be economical with the truth
pregnant→ to have a bun in the oven
TV → electronic babysitterHomework Preview Grammar and do the exercise.Period ⅢNo, I didn’t. There was a
traffic jam yesterday. So,
when I arrived at the party at 11 o’clock, it was over.Did you see Bob at the party yesterday?Look at the pictures, paying special attention to the colored parts. Complete the following sentence by choosing the correct answer.Well, was Bob there when you arrived?No, he had already
gone home.Bob left his office ________ (before/after) the man arrived there.beforeWhen we talk about two events that both happened in the past,
● we use the _________________for the first event;
● we use the _________________for the second event.Past Perfect Tense Past Simple Tense The army had won an important battle before they
crossed the border.
2) The prisoner was released after he had been in prison for
several years.
3) It was the first time he had ever visited a night club. More examples: Complete each of the sentences with the correct
form of the verb in brackets.
My best friend, John, was no longer there. He _______
(go) away.
2) When I got home, I found my flat _________________
(break into) and my computer ________________ (steal).
3) Tom wasn’t at home when I arrived. He _______________
(just go out).had gonehad been broken intohad been stolenhad just gone out4) I was very pleased to see Tom again after such a long time.
I ____________ (not see) him for five years.
5) We arrived at the cinema late. The film
___________________ (already begin).
6) Charlotte was depressed because she ________________
(fail) her English exam.hadn’t seenhad already begun.failed Before his sixth birthday his father (已经教了) him to speak three languages fluently and he could play the violin and the piano perfectly. James spent all his time reading and studying. After he (通过了……考试) his school-leaving exams at the age of nine, he went to college. A year and a half later, he (完成学业) college and started at a medical school. At the age of twelve, he didn’t know what football was, because nobody (从未教过) him how to play. There (一直没有) time.had taughtpassedgraduated fromhad ever taughtwas noComplete the following passage with the translation
of the phrases in brackets. James Stoker was fifteen years old when he became the youngest fully qualified doctor in the United States. James was a genius. By the age of two he_______________ (已经学会了) to read and write.had already learnedCan you guess its meaning from the next sentence?Role-play with the past perfect tense.Report a robbery at a police station.“When I got home from work I saw that... ” (window, TV, clock, safe, picture, and... )Homework 1.Review Grammar
2.Preview the vocabulary in Listening and Speaking. Period Ⅳ1) Hawaii is located ______.
in the east of the Pacific Ocean
in the middle of the Atlantic Ocean
in the middle of the Pacific Ocean
in the east of the Atlantic Ocean
CHow much do you know about Hawaii?quiz2) _____ is the capital city of Hawaii.
A. Kauai B. Honolulu C. Maui D. None of the three
3) As a tropical paradise for tourists, Hawaii is famous for
its ____.
A. palm trees
B. white sand beaches
C. volcanoes
D. all of the threeBDListen to a short passage about Hawaii twice and
complete the following chart.Beaches fine
white sand20Water temperature23℃ 23℃ 23℃ 23℃ flowers fruitspeople Work out a travel guide of Hawaii, covering the following points: location, people, climate, landscape and customs. You may go to the school library or surf the Internet for necessary information (for example, some vivid pictures as well as written descriptions).You can do it after class.Have you ever heard of 3Rs?
What does 3Rs stand for?What do they mean to you?Reduce
To use things with care to reduce the amount of waste
Reuse
To repeat use of items or parts of items like buying
secondhand furniture
Recycle
To use waste as resources
firsthandListen to the tape for the right words and check your job.The following is an introduction of “3Rs”. Please read and underline the improper word in each line and then try to correct it.Three Rssimple e-mailsendingclean photocopiesonline written secondhand cardboardcolored recycled Work in pairs to match the following themes
with their Chinese translations.1)-G2)-H3)-A4)-B5)-C6)-D7)-E8)-FHomework 2. Preview Writing. 1. Discuss in groups to suggest a theme
for this year’s World Environment Day.
Give your reasons.Period ⅤA letter of complaint is written to complain about something, hoping at the same time to get the problem solved. Read the following two sample letters.What is a letter of complaint?Letter 1Dear Mr. Smith,
I am your neighbour, a writer. I venture to write to you a letter about the inconvenience caused by your dogs.
The focus of the complaint is the noise made by these pet animals. For one thing, the fierce dogs make a lot of noise during the day when there’s anyone walking past your garden. This seriously distracts my mind while I’m writing at home. For another, these dogs may frighten the children of the neighbourhood when the children are playing after school.
All in all, there is still much room for improvement. I do hope you can give up raising large pets like these dogs.
Thank you for your time and kind consideration.
Kind Regards,
Jim Brownto say or do sth in a careful wayconvenient convenience inconveniencedistract one’s mindThe calls of the frogs distract his mind so he couldn’t focus his attention on his homework.Can you make a sentence?Letter 2Dear Sir,
I am writing to you to complain about the shoes I bought a week ago from your shop. Although I have only worn the shoes three times, the soles are worn out, and the shoes are out of shape. At your price, I expect high quality.
I am returning the shoes to you by post. I expect to receive another pair of better quality or the full refund of the shoes.
Yours Sincerely,
Zhang FeiCan you guess its meaning?Points on how to write a letter of complaint:● Describe the problem(s).
● Describe the trouble the problem(s) has/have caused to you.
● Give suggestions to solve the problem(s).Take out the letter of complaint you wrote in
Comprehending and check whether you have the
points mentioned above.I’m writing to bring your attention to the problems I have had with…
Here’s the problem…
It would be very kind/considerate of you to…
Address this problem soon.
Take steps to put this situation right soon.
Frankly, I really can’t put up with the situation any more.
You must put the situation right, or I will take it to the court.Now please rewrite your complaint. The following sentences may help you.Or You can think about the other problem
in your study or in your life that you want
to deal with.For exampleYou have so much homework that you can not finish it. Your parents are so strict that you do not have time to have fun.Homework Finish writing a letter of complaint. Period VI What are related to global warming?Global Warming( ) greenhouse
( ) melting of polar ice
( ) carbon dioxide
( ) Kyoto Protocol
( ) disappearance of plants and animals√√√√√How is global warming formed? Global warming is caused when carbon dioxide (CO2) gets into the atmosphere. The carbon dioxide acts like the glass walls and ceiling of a greenhouse. It lets sunlight in to warm things up, but it doesn’t let the heat escape. Scientists say the same thing is happening to our planet, making
it a dangerously warmer place.Can you explain with the help of
the key words and the picture? carbon dioxide greenhousesunlight escapeWhat can global warming result in? Some species could be extinct like some butterflies.Some ice and snow on the high mountains would melt.The rain forests in Brazil could be damaged.Anything else?What does the map
of Brazil look like?What is Brazil famous for?Brazil is famous for its football.Read through the passage and get to know more.Global Warming Alert As many as one million species of land plants and animals are in danger of becoming extinct if global warming continues. According to a recent study, the warming of the Earth could destroy as many as 37 percent of the world’s living species by the year 2050!What Is Global Warming? Global warming is caused when carbon dioxide (CO2) gets into the atmosphere. The carbon dioxide acts like the glass walls and ceiling of a greenhouse. It lets sunlight in to warm things up, but it doesn’t let the heat escape. Scientists say the same thing is happening to our planet, making
it a dangerously warmer place.no longer in existenceAlarming Findings The study was conducted by researchers in England who used computer models to predict what would happen to certain species if global warming continues.
The team studied 1,103 species in Australia, Brazil, Costa Rica, Europe, Mexico and South Africa. These regions represent about 20 percent of the Earth’s land area. The study predicted that Australia would lose over half of its more than 400 butterfly species by 2050.
“We’re already seeing biological communities respond very rapidly to climate warming,” said Chris Thomas, a biologist at the University of Leeds in England, and the head of the study.alarm clockbiologycausing worry and fear The study found that between 15 and 37 percent of the studied species could be extinct or nearly extinct by 2050. There are about 14 million plant and animal species on Earth.What Should Be Done? Researchers say businesses and governments must create new technology that limits the production of greenhouse gases. These gases, such as carbon dioxide, pollute the environment. Researchers also say that limiting carbon dioxide emissions could save 15–20 percent of species from extinction.extinct adj. The U.S. is a big part of the problem. Although the U.S. has about 4 percent of the world’s people, it produces about 25 percent of the pollution that leads to global warming. A special agreement called the United Nations’ Kyoto Protocol would limit, or cut down on, the amount of harmful gases that countries are allowed to produce. But the former President Bush has refused to sign the treaty, saying it would hurt America’s businesses.Barack Obama and Dmitry Medvedev signed the agreement/treaty cutting their nations’ nuclear arsenals. Plants and animals aren’t the only creatures that are in danger. Humans are at risk, too. Many scientists believe the Earth’s rising temperatures could eventually melt polar ice caps, cause sea levels to rise and deteriorate into flooding.to become worseWhat is the process of global warming? Read through the passage and put the following sentences into the correct order.1) Carbon dioxide stays around the Earth.
2) Heat from the sunlight can’t escape and makes the Earth
warmer.
3) Factories and cars release carbon dioxide into the air.
4) Sunlight travels through the layer of carbon dioxide.The correct order is:3)→1) →4) →2)Read the passage again and answer the following questions.1) What is the result of a recent study on global warming?2) What kind of method has been used by researchers to
study certain species?3) According to the study, how many butterfly species will
die out by the year 2050 in Australia? The study found that between 15 and 37 percent of the
studied species could be extinct or nearly extinct by 2050.They used computer models to predict what would
happen to certain species if global warming continues.Over half of Australia’s more than 400 butterfly species.4) What is the fun_ction of the United Nations’ Kyoto Protocol?5) Why didn’t the former President Bush sign the Protocol?The United Nations’ Kyoto Protocol would limit, or
cut down on, the amount of harmful gases that countries
are allowed to produceBecause he said signing the Protocol would hurt America’s businesses.Find the words or phrases from the passage that have the same meanings as the following. Then complete the sentences with their proper forms.in danger
stand for
release
no longer in existenceagreement
worsen
environmentThe disease is spreading, and all young children are
___________.
2) There is a/an __________ of peace and calm in the country, quite different from that of a big city.at risktreatyrepresentdeteriorateatmosphereemissionextinctat riskatmosphere3) Relations between the two countries have ________
sharply in recent weeks.
4) We sold the house by private ________.
5) Dinosaurs have been _______ for millions of years.
6) The competition attracted over 500 players __________20
different countries.
7) In order to protect our environment, no ________ vehicles
should be popularized.
deterioratedtreatyextinctrepresentingemittingHomework Finish Tasks 4 and 5 after class.What should we do to reduce the effect of global warming? Conduct a survey among your classmates and make a report of their views.categorize and recycle the trashturn off the light take the busplant more treesuse renewable resourcesuse plastic bagsuse throwaway chopstickswaste resourcescut down treesoverexploitAccording to the passage, the United States’ former President Bush refused to sign Kyoto Protocol because he thought it would hurt America’s business. Do you agree or disagree with him? Hold a debate on whether it is possible to develop the world’s economy and protect the environment at the same time.Debate