北师大版高中英语选择性必修第一册 Unit 3 Unit3 WORKBOOK PPT课件

这是一份高中BSD英语选择性必修第一册 Unit 3 Unit3 WORKBOOK PPT课件，共26页。
Unit 3 CONSERVATIONWORKBOOKLANGUAGE IN USE1 Lesson 1 Match the two halves of the expressions and then complete the paragraph.Several mass extinction events have occurred in the course of our planet’s history. Scientists say that previously 1 ______________________________ but 2 _______________________________ for the sixth extinction which has already started to happen. It is clear that 3 _________________________________ almost every natural thing on Earth, from 4 _________________________________________ to creating 5_____________________________. the reasons for extinction have variedhuman actions will be to blamehuman activity negatively affectsdestroying different species of plants and animalsvarious types of greenhouse gasesIn fact, 6________________________ at a faster rate now than anytime in history. According to scientists, we are now at the risk of 7 _______________________________________. Think of the amount of cars on the road. Now we know that 8____________________________ which is why more and more people are becoming sick. We as young people must fight for our planet’s future and call upon everyone to respect the Earth.species are being wiped outcausing damage to the planet that cannot be repairedcancer is related to traffic pollution2 Lesson 2 Complete the following sentences with the correct form of the words below.1 It’s such a waste of paper to _________ birthday gifts.2 It is _________ to see him cycle to work.3 He is the person who always comes up with __________ ideas.4 Don’t throw them away. They can be____________.5 We need more____________ packaging on the products we buy.wrapunusualinnovativerecycledrecyclable3 Lesson 3 Complete the dialogue with the correct form of the words and expressions below.Martin: Good morning, Mary. How do you always manage to the office before me?Mary: Morning, Martin. Well, l cycle so l don’t 1 __________________.Martin: Well, l don’t cycle but I do take 2 ______________. It’s not quite as fast as cycling but it gets me 3_____________ much quicker than if l take my car.Mary: Public transport is also a good way to help reduce the level of 4 _________________ in our atmosphere. If more people take the bus and train, it would be better for us all.Martin: I know so many people who 5 ____________ about traffic 6 ___________ and air pollution, but 7 _________ cannot solve the problems.Mary: That kind of attitude is common but l think more and more people are beginning to do something which 8 ___________ them and protect the environment.get stuck in trafficpublic transportdowntowngreenhouse gasescomplainjamsangersuits4 Relative Clauses Write sentences to match the endings.1 _______________________________, which made me angry.2 ___________________________, who isn’t very kind at all.3 __________________________________, which I really liked.4 _____________________________, whose cousin is coming to town.5 ________________________, which changed my plans for the future.6 ________________________, where the storms can be terrible.7 __________________________________, which scared me to death.8 ____________________________, which I borrowed from my friend.The man interrupted me impolitelyI met the new doctor last weekI got a new school bag for my birthdayI’m going to a new restaurant with my friendI received an important letter yesterdayThe desert is a big placeA huge spider suddenly appeared in the bathI needed an encyclopaedia to do my homework5 Making and Accepting Suggestions Write questions about the statements or responses to the questions with your own ideas or suggestions using the expressions below.1 What can l do about all these old newspapers?2 That sounds like a good idea. l want to try and get fit and walk more anyway!I will take them to the recycling centre.Why don’t we start walking to school from now on?3 I would love you to buy more organic fruit and vegetables. l think it’s better for our health and the environment.4 What can we do to reduce the level of air pollution in the city?5 I want to buy a new car but I’m worried about the environment.I’m glad you think that. They’re much better for us.We can make the city centre a traffic-free zone.Would you like me to tell you about electric cars?6 Collocations Match the words or phrases on the left (1-8) with those on the right (a-h) to make collocations. Then complete the paragraph with the correct form.I just hate getting to work in the morning. It 1_____________ to get to my office from my home because of the 2 _____________. Often I 3 ____________________ and I really 4_____________. Last year, I tried to 5 _______________ with my colleagues who live near me but it still took so long. Now l go to work by train. takes such a long timeheavy trafficget stuck in a traffic jamfeel stressed outshare a carTo be honest, l really 6 __________________________. It seems every year it is getting worse. I can’t understand why people always drive cars, even for a short journey when they could walk. Even though in recent years, the price of petrol goes up, people still 7 _______________ to use their cars. lf your journey is less than 30 minutes, l really think the obvious solution is to walk. It will help you 8 _____________ and be good to the environment.worry about high levels of pollutionmake excuseskeep fitLISTENING7 Listen to Monologue 1. Complete the interview notes.Why did she decide to make changes to her life?________________________________________________What three things does she do to reduce the use of plastics?________________________________________________________________________________________________________________________________________________What are the two reasons for changing her diet?__________________________________________________________________________________________What are the two benefits of cycling to and from school?__________________________________________________________________________________________8 Listen to Monologue 2. Complete the interview notes about Tim, a conservationist.What inspired his love of nature?________________ What did he do in the summers to develop his knowledge of conservation?He ____________ monitor wild birds.What did he study in university? ___________________.His passion led him to Namibia where he ________________.In his work, he sees the impact of ___________________.He believes we need to take urgent steps to protect: TRANSLATING9 Translate the sentences into English.1 虽然物种的自然灭绝并不罕见，但是现在灭绝的速度让人担忧。 ___________________________________________________________________2 显然，人类活动对地球上所有其他物种都产生了负面影响，包括动物和植物。 ___________________________________________________________________3 我们常常认为自己对噪声、污染和交通危险无能为力。 ___________________________________________________________________4 有时使用公共交通工具可能要多花些时间，但是那又怎样? ___________________________________________________________________5 交通是全球变暖和气候变化的主要原因之一。 ___________________________________________________________________Although it is not unusual for species to die out naturally, the rate at which this is now happening is cause for concern.It is clear that human activities have negatively affected all other species on Earth, including animals and plants.We often think there is nothing we can do about the noise, pollution and danger of traffic.Sometimes it may take a little bit longer to use public transportation, but so what?Traffic is one of the major causes of global warming and climate change.READING AND WRITINGThe Link Between Food Chains and ExtinctionMany animals and plants are endangered in the world today. These endangered species are threatened with becoming extinct, meaning they will no longer exist on Earth. Examples include the Cuban Macaw and the Sri Lankan Legume Tree. Hunting, and collecting of the Macaw bird for pets, led to its extinction, Whilst the main reason the native Sri Lankan Legume Tree went extinct was due to habitat loss from development in the 20th century. The main cause for animals and plants disappearing is often a disruption to the food chain due to hunting, habitat loss or even the introduction of invasive species.Every living thing from one-celled animals to a blue whale needs to eat, Nature is connected and controlled by many fragile food chains. A food chain describes who eats whom in a habitat. When one of the links in a food chain is no longer present-for example, a species goes extinct - the food chain breaks and sometimes this can cause other animals to disappear and the whole system can become imbalanced or even collapsed.Humans can have disastrous effects on food chains. When people first explored the world, they took animal and plant species from their home countries to the places they explored and settled in. They did not realise the consequences of introducing invasive species. By doing so, they were disrupting the natural food chains of the areas they explored.Nowadays there are strict rules controlling the movement of animals and plants between countries. But some parts of the world are still experiencing problems with invasive species introduced hundreds of years ago.With rising awareness of how we affect the natural environment, hopefully we can learn to protect these food chains and help them to thrive. Otherwise the continued loss of species will eventually mean our own extinction.10 Read the article. Answer the questions.1 According to the author, which of the following is correct?a The food chain will always find a way to be balanced.b The natural world experiences times of damage but it always can recover.c Despite the climate change caused by humans, plants and animals will go extinct naturally.d Human activity, in all forms, tends to cause great destruction to the natural world.2 According to the author, what human activity in particular caused damage to natural environments?a Cleared away plants and trees which meant animals starved.b Introduced new species to food chains.c Hunted carnivores while allowing too many herbivores to live.d Prevented the introduction of different species to new environments that needed them.3 What steps do you think we can take to prevent our extinction? I think we can _____________________________.11 Summarise the article. Include the three main ideas.Today, many animals and plants are endangered species and will become extinct, The main cause for this is disruption to the food chain by human activities such as hunting, the destruction of habitats and moving animals and plants into different habitats, Food chains are essential to life. When one link in the chain disappears, this can break the whole food chain. For this reason it is important to protect food chains.完成课后相关练习谢谢观看