Unit 3 Using Languageppt课件-（2022新）人教版高中英语选择性必修第四册.pptx

1、To know about whales and other animals.To learn how to listen for sequence.To use proper expressions to talk about what happened.parrotfishcoral reefsea-starturtleeel 鳝鳝; 鳗鳗 sharkHave you seen plants and animals that live under the sea? Where did you see them? How much do you know about whales?Could

2、 you complete the fun facts about whales? 1. Whales can hold their breaths for at least _ minutes.2. The _ whale is the largest known creature to ever inhabit the planet.3. Humpback whales sing _ songs.4. There are _ types of whales.5. Whales _ sleep.20 bluecomplextwo dontRead the poster on page 30,

3、 describe the picture.The photo is of a 26-meter blue whale approaching a whale watching boat in Monterey Bay, California. 1. What aspect of the camp would you like best? I would like the opportunity to see the whales close up best.2. Do you think it is important to carry out research on whales and

4、other sea creatures? This research helps us learn more about the wonderful world we live in, and it also helps us learn more about these amazing creatures so that we can better protect them.Listen to the head researcher talking to the campers at the end of the day. What three things were the campers

5、 asked to do?Listen for sequenceWhen people talk about a series of actions or events happening in sequence of time, they often use certain words and phrases, such as first, next, then, after that, later, and finally.1. _2. _ 3. _ _to find out some facts for a whale profile to think about why they do

6、 whale researchto go out with and write a report of the work they doListen to Lukes part of the conversation again. Number the following sentences in the correct order. After that, we gave the group of whales a name, and each member a number. They will be added to the directory so we can identify th

7、em in the future. Most whales have slightly different fins and marks, which can help us to tell them apart. Meanwhile, we also noted their location, so we can track their movements and plot their migration path. Then we took pictures of their fins. Finally, we contacted other whale research groups a

8、round the world to share the information with them. First, we followed a group of whales with the boat. Later, we created a database of their fins and locations.12345678n.目录目录;名录名录n.迁徙迁徙Listen to the conversation again and answer the questions. Look at the questions and circle the key words.1. How m

9、any species of whales are there?2. What is the criterion to divide the main types of whales?3. What do whales use sounds for?4. Why do the campers take pictures of the whales fins?5. Why do they contact other research groups?1. How many species of whales are there? Over 80.2. What is the criterion t

10、o divide the main types of whales? The criterion is whether they have teeth or not.3. What do whales use sounds for? They use sounds to communicate and hunt.4. Why do the campers take pictures of the whales fins? This can help them to tell the whales apart.5. Why do they contact other research group

11、s? They want to share information with them.Complete the mind map and talk about whales.Whalesover 80 speciesWhaleswith teethWhaleswithout teethfoodspeciesfoodtypical species fish, sea animals 70 small organisms blue whale length weight 100feet 200tonsSome of the students could not make it to the ca

12、mp. Imagine you were there. Tell your partner about what happened, using the expressions in the box below. Your partner can also ask questions to find out more about what happened.A: Today we learnt about whales and whale research. First, we found some information and facts about whales. We used the

13、 library and the Internet.B: What did you do after that?First(ly), Second(ly), . Third(ly), . First of all. Then/After that/Afterwards/Next/Later onIn the end/At last, . At that time.It began when. Meanwhile Later FinallyExpressing sequence adv.与此同时与此同时A: Today we learnt about whales and whale resea

14、rch. First, we found some information and facts about whales. We used the library and the Internet.B: What did you do after that?A: Well, after that we thought about why we do whale research.B: But why do we do whale research?A: There are lots of reasons. First of all, we need to know how many whale

15、s there are. Then, we need to know where they go. And finally, we need to understand more about them.B: Then what did you do next?A: After that, we went out whale watching, following a group of whales in a boat.B: That sounds great. Did you just watch them, or did you do anything else?A: We started

16、by taking pictures of their fins, so we could tell them apart. At the same time, we noted their location, so we could track them.B: What did you do afterwards?A: We created a database and gave each whale a name and number. Then finally, we shared our information with other whale research groups arou

17、nd the world.B: It all sounds so wonderful! I wish I could have joined youA: I do, too.Watch the video Protecting Biodiversity, and then discuss what other sea animals you would like to see. Talk with your partner and make a plan for a trip to see the animals. Your plan should include activities you

18、 would like to do.For our trip, we would like to go to the Shanghai Ocean Aquarium, whose theme is “Spanning five continents by a connection of water”. We can first visit the special exhibition of saving sharks. Then we can go to see the seahorses whose number declined greatly for the past decade. H

19、owever, most people do not know much about seahorses at all. I think we need to raise awareness about seahorses and marine conservation in China. The last spot will be The Chinese Pavilion, which displays the aquatic organisms and bio-system in the Yangtze River and some national endangered rare aqu

20、atic creatures, like Chinese alligator and Chinese Sturgeon.In groups, make a list of plants and animals that live under the sea that you and your classmates have seen in any of the ways listed above. Share what you know about these plants and animals. Do you have any favorite sea plants or animals?

21、 Tell your classmates what they are.What do you know about the oceans?SurveyFor the visitors What is marine biodiversity exactly? What are the worlds rarest marine species? Why are so many species disappearing? How can you help promote marine biodiversity?For the staff in the museum Does species div

22、ersity follow any patterns? How is marine biodiversity measured? What is being done to preserve marine biodiversity? What did you do to promote biodiversity while exploring or studying the oceans?The last whaling station in Australia closed in 1978. Whales are now an endangered species and in need o

23、f conservation. They are now protected by an international ban on whaling. However, some countries oppose the ban. In groups discuss the reasons for and against banning whaling.As part of the Tides of Change livestream, A reporter took a deep dive alongside a team of marine biologists to witness the

24、ir fascinating work underneath the sea. How to make such an underwater livestream come true? How to plant corals in the ocean? Why is it important to protect them? Lets watch a video and get to know what people do to protect biodiversity and protect the ocean.AROUND CHINACoral reefs are nicknamed th

25、e rainforests of the sea. However, environmental degradation is inflicting serious damage on them, threatening the diversity of ocean life. Experts are calling for joint efforts to protect them.Coral reef ecosystems are known as underwater “tropical rainforests.” To restore the seabed ecology, conse

26、rvation work has been carried out since 2004 on Fenjiezhou Island, including coral transplantation, bans on illegal fishing, and raising peoples awareness about the significance of coral reefs protection. Now coral covers 34 percent of the tourist area and 40-50 percent of the scuba diving area.Do you think human beings can still see various sea animals in 100 years and why? Do you think protecting biodiversity is an urgent matter and why? Write down your thoughts in 100 words.