Presentation on theme: "Unit 3 Fascinating Oceans"— Presentation transcript:
1Unit 3 Fascinating Oceans Book p.30Unit 3Fascinating Oceans
2Book p.30“I love the ocean. I want to be a diver when I, grow up,” said Bob. “Here’s an article about oceans, ”said Jack.
3Book p.30OceansOceans make up nearly three-quarters of the earth’s surface. There are five oceans in all – the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Antarctic Ocean and the Arctic Ocean.
4There are all kinds of life forms in the oceans There are all kinds of life forms in the oceans. Some examples are giant squid and seahorses. Some plants are so small that you would need a microscope to see them. There are also huge animals like the blue whale, the largest mammal in the world.Book p.31Scientists divide the oceans into four layers to study. Most ocean life forms are found in the Sunlight Zone. The second layer, the Twilight Zone, is colder and darker than the Sunlight Zone. Fewer plants and animals are found here. The Midnight Zone is below the Twilight Zone. Sunlight does not reach this layer and there is very little plant or animal life.
5Sunlight Zone Twilight Zone Midnight Zone Abyss and trenches Book p.31Sunlight ZoneTwilight ZoneMidnight ZoneAbyss and trenchesThe layers of the ocean
6Book p.31The abyss and trenches are found in the deepest layer. The deepest sea trench is the Mariana Trench in the Pacific Ocean. It is more than metres below the surface of the ocean!Scientists have learnt much about the oceans. There are, however, many mysteries still waiting to be explained.
7Read the first paragraph slowly and carefully. Book p.32“This information report contains a lot of interesting facts. How can I understand it better?” asked Bob.“Well, you can look for the main idea in each in each paragraph,” Jack explained.Read the first paragraph slowly and carefully.
8Book p.32Ocean make up nearly three-quarters of the earth’s surface. There are five oceans in all –the Pacific Ocean, the Antarctic Ocean and the Arctic Ocean.The first sentencecontains the mainidea of theparagraph.The other sentence in the paragraphprovides more information about themain idea.
9The tiny fish are fleeing from the big fish that is chasing them. Bob’s class is watching a documentary film about ocean creatures.Book p.33The tiny fish are fleeing from the bigfish that is chasing them.
10This starfish is crawling along the ocean floor where there is food. Book p.33
11These are the turtles which lay their eggs at the same beach every year.Book p.33
12My partner is the boy whose father is a deep-sea diver. Book p.33My partner is the boy whose father is a deep-sea diver.The people who made this documentary are great!
13The class observes some sea creatures The crabs are moving quickly.Book p.34The octopus is gripping its prey tightly.The stingrays are dancing gracefully in the water.
14The prawns are moving about beautifully. Book p.34The cuttlefish cleverly changes the colour of its body to protect itself.The shark attacks suddenly.
15The A to Z of Ocean Life Angelfish, archerfish Book p.36Angelfish, archerfishButterfly fish,Crabs and clams,Dolphins and deep-seaEels,Flying fish,Great white sharks and giant squid,Herring, halibut,Immense schools of barracuda,Jellyfish,Krill,Lanternfish, lobsters,Mackerel and manatees,Narwhal,Octopuses and Orca whales,Prawns, porpoises and all kinds ofQueer fish, quick fish, slow fish,Rays,Seaweeds, seahorses, sea slugs, sponges,Tuna, turtles andUnusual things likeViper fish andWhelks – they all live in the oceans.eXamine ocean life andYou will find creatures that areZany, colourful, beautiful, uglyand absolutely amazing!
16Let’s write an information report on blue whales for our classmates! Book p.38An information report provides facts and descriptions about a topic. Here are some features of an information report:the title tells us what the report is aboutthe first sentence is usually a general statement that introduces the topiceach paragraph is made up of a main idea and supporting detailsphotographs labelled with captions make the information clearerthe last sentence is usually a general statement that ends the report
17Appearance or features: Here are the question Jack and Tim camp up with to help them find information for their report.Book p.3812Appearance or features:What do they look like?Habitat or place wherethey live :Where do they live?3Blue whaleTheir eating habits:What do blue whaleseat?54Other special informationabout blue whales:Why do blue whales sing?Who or what is a danger toblue whales?How they have young and lookafter them:How do they have young?How do they feed their young?
18SkimmingWe skim or look through a book or an article quickly to decide if it has the information we are looking for. We can also skim to revise or review a text after we have read it.Tim found many books and brochures that he thought might give him information about corals.Book p.40Hmm… this one says All You Need to Know About Corals. It must have useful information .So many! Which ones will have the most useful information?Let’s read the titles first.
19read the title and the headings Book p.40Tim looked at the Contents pages if the books he had chosen. This helped him identify the most useful parts of each book.To skim:read the title and the headingsread the first paragraph and the first sentence of other paragraphslook for key wordsread the last paragraph
20ea ee ie sea eat creature leap feature flee deep breed feed eel Book p.42easea eat creature leap featureeeflee deep breed feed eeliechief field piece yield believe