Bài giảng Tiếng anh Lớp 10 (Sách cũ) - Unit 9: Undersea world - Part A: Reading

Nội dung text: Bài giảng Tiếng anh Lớp 10 (Sách cũ) - Unit 9: Undersea world - Part A: Reading

1. * Look at the map and give the Vietnamese names for the oceans on the map
2. Bắc Băng Dương Đại Tây Dương Thái Bình Dương Ên Độ Dương Nam Băng Dương How many oceans are there in the world? What are they?
3. • 1. Do you see these animals ? 2. Where do they live ? IN THE OCEANS Seal Jellyfish Turtle Shark
4. I.Pre-reading: There is only one ocean. It’s divided into five different parts: the Pacific, Atlantic,Indian, Antartic, and Arctic Ocean. There are also many other smaller seas, gulf and bays which form part of them. Altogether they cover 75 percent of the earth’s surface. For centuries, people have challenged by the mysteries that lie beneath the ocean. However, today’s scientists have overcome many of the challenges ofthe depth by using modern devices. They send submarines to investigate the seabed and bring samples of marine life back to the surface for further study. Satellite photographs provide a wide range of information, including water temperature, depth and the undersea populations. If modern technology did not exit, we would never have such precious information. Marine plants and animals fall into three major groups. Some of them live on or depend on the bottom like the starfish. Some are swimming animals such as fishes and sharks that move independently of water currents while others are tiny organisms that are carried by the currents like the jellyfish . Plants and animals of the sea, however small or oversized, all contribute to its biodiversity. Unless this biodiversity were maintained, marine life would be at stake.
5. * NEW WORDS - Mystery (n) : ['mistəri] Bí ẩn - Device (n): /di'vais/ Thiết bị - Beneath (pre) : [bi'ni:θ] Bên dưới - Submarine (n) : [,sʌbmə'ri:n] Tầu Ngầm - Seabed (n) : ['si:'bed] Đáy biển - Satellite (n) : ['sỉtəlait] Vệ Tinh
6. * NEW WORDS - be at stake [bi: ət steik] Bị đe dọa - Organism (n) : ['ɔ:gənizm] Sinh vật - Marine (adj) : [mə'ri:n] Thuộc về biển - Current (n) : ['kʌrənt] Dịng chảy - Maintain (v) : [mein'tein] Duy trì
7. NEW WORDS - Mystery (n) : ['mistəri] - Device (n): /di'vais/ - Beneath (pre) : [bi'ni:θ] - Submarine (n) : [,sʌbmə'ri:n] - Seabed (n) : ['si:'bed] - Satellite (n) : ['sỉtəlait] - be at stake [bi: ət steik] - Organism (n) : ['ɔ:gənizm] - Marine (adj) : [mə'ri:n] - Current (n) : ['kʌrənt] - Maintain (v) : [mein'tein]
8. Task 1. The words in the box all appear in the passage. Fill in each blank with one of them. There are more words than needed. gulf (n) oversized (adj) biodiversity (n) challenges (n) investigate (v) tiny (adj) samples (n) provide (v) 1. Some plants and animals are referred to as organismstiny because they are extremely small. 2. Thanks to modern technology, scientists have been able to investigate the life of plants and animals that live under the sea. 3. A gulf is a large area of sea that is partly surrounded by land 4. .Biodiversity is a term that refers to the existence of different kinds of animals and plants which make a balanced environment. 5. These scientists have collected different samples to analyze for their experiment.
9. Task 2. Read the passage again and then answer the following questions. 1.What percentage of the earth’s surface is covered by seas and oceans ? 2. How do scientists now overcome the challenges of the depth ? 3. What can submarines do to help scientists know about the undersea world ?
10. 4. What can we learn from the satellite photos ? 5. What are the three groups of marine plants and animals ? 6. What would happen if the sea biodiversity were not maintained ?
11. Answers 1.What percentage of the earth’s surface is covered by seas and oceans ? => 75% of the earth’s surface 2. How do scientists now overcome the challenges of the depth ? => By using modern devices 3. What can submarines do to help scientists know about the undersea world ? => They investigate the seabed and bring samples of the marine life back to th surface for further study
12. 4. What can we learn from the satellite photos ? => We can know a wide range of information including water temperature, depth and the undersea population. 5. What are the three groups of marine plants and animals ? => They are those that live on or depend on the bottom like the starfish, those that move independently of the water currents and those are carried along by the currents. 6. What would happen if the sea biodiversity were not maintained ? => Marine life would be at stake if the sea biodiversity were not maintained.
13. III. After you read Work in pairs. Complete of the summary of the reading passage by filling each blank with a word or phrase given in the box below. plants and animals (n.p) discoveries(n) huge(adj) closely connected (n.p) Modern (n) three – quarters (n) mysterious(n) biodiversity (n) Though covering (1) three - quarters. of the earth’s surface, the ocean has remained (2) mysterious to us until recently. With (3) modern technology we have now made important (4) discoveries about the (5) biodiversity of marine life. We have learn that whether tiny or (6) huge ., all the (7) plants and animals of the sea are (8) closely connected . .
14. 1. Learn the vocabulary. 2. Do exercises in the workbook. 3. Prepare the next lesson : B. Speaking