Đề cương ôn thi môn Tiếng anh Lớp 7 - Unit 10: Energy sources

Nội dung text: Đề cương ôn thi môn Tiếng anh Lớp 7 - Unit 10: Energy sources

1. UNIT 10. ENERGY SOURCES A. PHONETICS I. Put the words in the correct column expensive energy atmosphere illegal imagine dangerous dioxide natural hydrogen equipment limited government pollution consumption measurement First-stressed pattern Second-stressed pattern II. Choose the word whose stress pattern is different from the others. 1. A. recycle B. generate C. already D. computer 2. A. dangerous B. powerful C. excellent D. expensive 3. A. negative B. develop C. electric D. advantage 4. A. motorbike B. countryside C. position D. government 5. A. disaster B. another C. bicycle D. discussion B. VOCABULARY I. Unscramble the letters to make meaning words. 1. ___ egyenr ucoesrs 2. ___ oarls slpaen 3. ___ atlraun gsa 4. ___ Ighit busbl 5. ___ sptaicl gabs 6. ___ eaulrcn eyergn 7. ___ ileeractcl snalppeaic 8. ___ rmwa twrea II. Put the words into the correct category. coal hydro solar oil natural gas wind Renewable sources: Non-renewable sources: III. Fill in each blank with a word or phrase from part II. 1. ___ energy is a form of energy from the sun, which won’t ever run out.
2. 2. Petroleum, or crude ___, is a fossil fuel and non-renewable source of energy. 3. ___ power is a type of energy that comes from the force of moving water. 4. Driven by the ___, the movement of a wind turbine produces electricity. 5. ___, or fossil gas that we use to cook, comes from deep under the earth. 6. ___ is a flammable black hard rock used as a solid fossil fuel. IV. Choose the best answer to complete the sentences. 1. ___ source of energy is the source that can’t be replaced after use. A. Renewable B. Natural C. Effective D. Non-renewable 2. If everyone ___ fossil fuels, they will quickly run out. A. protects B. wastes C. consumes D. saves 3. Non-renewable energy sources will run out because they are ___. A. helpful B. limited C. harmful D. Unlimited 4. Solar energy is a green, clean, and ___ energy source. A. polluting B. non-renewable C. renewable D. recyclable 5. Nuclear energy is not ___ and it is not green because of radioactive waste. A. safe B. dangerous C. polluted D. cheap 6. Hydro power is the most efficient way to ___ electricity in many countries. A. create B. waste C. generate D. turn 7. Renewable energy sources are better for the environment and they will not ___. A. run out B. rely on C. turn off D. put on 8. I can ___ much energy by turning off the TV when not watching it. A. use B. make C. spend D. save 9. Instead of using electricity to make wind - like a fan - wind turbines use ___ to make electricity. A. oil B. solar C. wind D. water 10. Do your parents ___ coal as well as wood to make a fire for cooking? A. burn B. heat C. reserve D. produce C. GRAMMAR I. Put the verbs in the brackets into the present continuous. 1. The activists ___ (do) to drive a green energy revolution at present. 2. Lots of students ___ (study) energy sectors in the United States now. 3. Current cycle of global warming ___ (change) the rhythms of climate. 4. Our company ___ (introduce) environmentally friendly devices this week.
3. 5. Technicians ___ (replace) the building’s old solar panels at the moment. 6. In other parts of the world, clean energy sources ___ (take) off. 7. Shell group ___ (develop) principles for sustainable fuel production? 8. Economic organisations ___ (not talk) about the petroleum price today. 9. Mining, drilling and burning dirty energy ___ (harm) the planet. 10. Some schools ___ (produce) renewable electricity on their own campuses. II. Put the verbs in the brackets into the present continuous or the present simple. 1. The Sun ___ (be) the main source of energy on Earth. 2. How many types of energy ___ (humans, use) at present? 3. My father ___ (replace) the old bulbs in my room at the moment. 4. It ___ (take) billions of lifetimes for new fossil fuels to form. 5. At the current time, many families ___ (look) for ways to use less energy. 6. We ___ (discuss) about the advantages of some energy sources now. 7. Today, governments ___ (face) multiple challenges of energy security. 8. ___ (you, visit) the biggest hydropower dam in the country at the moment? 9. Nowadays, critical changes ___ (take) place in the global energy system. 10. We'll choose electric vehicles if they ___ (be) more convenient and cheaper. III. Choose the best answer to complete the sentences. 1. Solar generation ___ up only 3.3 % of total U.S. generation in 2020. A. made B. makes C. is making D. will make 2. Energy ___ from different forms and essential for everything we do. A. comes - is B. come - be C. came - was D. come – are 3. Trees ___ in carbon dioxide and it in their trunks. A. breathes - store B. breathe - store C. breathe - stores D. breathe – stored 4. The Greeks ___ water wheels to grind wheat more than 2,000 years ago. A. use B. uses C. used D. are using 5. Nowadays, renewable energies ___ on a very important role in the heating market. A. took B. takes C. is taking D. are taking 6. Many countries in the world ___ wind power on a commercial basis today. A. used B. will use C. are using D. uses 7. Now automakers ___ fuels cells that extract hydrogen from gasoline. A. developed B. develops C. are developing D. will develop
4. 8. In the old days, humans ___ on the sun and wood for heat. A. rely B. relies C. are relying D. relied 9. Hydroelectric, wind, solar, biomass and geothermal energy ___ all limitless. A. is B. are C. will be D. was 10. Today, the world's resources ___ at an extremely fast rate. A. are depleting B. depletes C. depleted D. is depleting IV. Choose the word or phrase that needs correction. 1. Fossil fuels are (A) useful and inconvenient (B), but (C) they pollute (D) the air. 2. Scientists and engineers (A) are using energy from (B)the wind to (C) generate electrical (D). 3. We are look (A) for more (B)natural resources such as (C) wind and solar (D) energy. 4. Coal, natural gas (A) and oil are (B)fossil fuels, and it is (C) non-renewable (D). 5. In (A) the early 1800s, American and European (B) factories use (C) water as a source of energy (D). 6. People develop (A) ways of using (B) biomass as (C) an alternative (D) to fossil fuels now. 7. New technology can make (A) solar panels to able (B) to generate (C) electricity on cloudy (D) days. 8. Energy from (A) renewable resources puts (B) less (C) strain on the limitless (D) supply of fossil fuels. 9. About ago two centuries (A), biomass in (B) the form of wood was (C) the major (D) source of energy. 10. Today, new technologies are producing (A) ethanol to (B) trees, grasses (C), and crop (D) waste. D. SPEAKING I. Write questions for the underlined parts. 1. There are about eight to ten main types of energy sources. ___. 2. Hydropower became an electricity source in the late 19th century. ___. 3. People in remote areas use wood to cook food. ___. 4. Russian people built the first nuclear power plant. ___. 5. They call the wind a renewable energy source because it can be quickly renewed and reused. ___. 6. Solar panels work by converting solar energy into electricity. ___. 7. Yes, solar panels generate electricity when there are sun’s rays.
5. ___. 8. The world’s first hydroelectric power plant began operation in the United States. ___. II. Fill in each blank with a word or phrase from the box to complete the conversation. natural gas sunlight fossil fuel in use energy and money transport electric car electricity Harper: Have you ever done something to save energy, Emma? Emma: Yes, I have. I usually turn off the lights when the room has enough (1) ___. Harper: That’s a good way to save electricity. What else? Emma: Ah, I will unplug chargers if they’re not (2) ___. Harper: What about (3) ___? How do you go to school? Emma: My parents take me to school. We travel by car. And you? Harper: I cycle to school. Sometimes my parents take me to school, but they use an (4) ___. Emma: Electric car doesn’t run on petroleum, does it? Harper: No, it doesn’t. We don’t have to spend much money on fuel. The car doesn’t consume much (5) ___. Emma: Sounds great. You are saving a lot of (6) ___. Harper: That’s true! Electricity is always cheaper than petroleum. Emma: Is it cheaper than (7) ___? My mother uses natural gas for cooking and heating. Harper: I don’t know, but natural gas is also a type of (8) ___, the same as oil. So we should use it less. Emma: You’re right. E. READING I. Read the passage and decide whether the statements are TRUE or FALSE. Wind is moving air. We can use the energy in wind to do work. Early Egyptians used the wind to sail ships on the Nile River. People still use wind to move them in sailboats. In the Netherlands, people used windmills to grind wheat. The Pilgrims used windmills to grind corn, to pump water, and to run sawmills. Today, we use wind to make electricity. The energy in wind comes from the sun. When the sun shines, it heats the Earth. Some parts of the Earth get hotter than others. An area where land and water meets is a good example. Land usually absorbs and releases energy more quickly than water. The air over the land gets hotter than the air over the water. The warm air rises and cooler air rushes in to take its place. The moving air is wind. As long as the sun shines, there will be winds on the Earth. We will never run out of wind energy.
6. It is a renewable energy source. It is also free, since no one can own the sun or the air. - windmill (n): cối xay gió - sawmill (n): máy cưa - absorb (v): hấp thụ 1. Wind energy was used a long time ago. ___ 2. People don't use wind to sail boats any more. ___ 3. Windmills were used to grind corn in the Netherlands. ___ 4. The Pilgrims used windmills to run sawmills. ___ 5. Land usually absorbs and releases energy more quickly than water, but the air over the water gets hotter than the air over the land. ___ 6. Wind is formed when the warm air rises and takes cooler air's place. ___ 7. We won't run out of wind energy as long as the sun shines. ___ 8. Wind is a free and renewable source of energy. ___ II. Fill in each blank with a word from the box. wasting costs than by environment or energy replaced Energy is there whenever we need it, so it’s easy to forget where it comes from, or how much it (1) ___. You’ve probably heard the adults in your house say “Turn off the light!” (2) ___ “Close the refrigerator door!” Have you ever wondered why? Every year, we use more energy (3) ___ we did the year before. All of that energy adds up, and much of it is wasted (4) ___ using too much or not using it wisely. Energy isn’t free. The adults in your house pay for all the electricity you use. So (5) ___ energy is the same as wasting money - and we know that’s not a good idea! Wasting energy isn’t good for the (6) ___ either. Many of the energy sources we depend on, like coal and natural gas, can’t be (7) ___ once we use them up, they’re gone forever. Another problem is that most forms of energy can cause pollution. It might seem like kids can’t do much to help. But every time you turn off a light bulb or close the refrigerator door, you’re saving (8) ___. F. WRITING I. Rearrange the words to make meaningful sentences. 1. Viet Nam/ in/ exploiting/ great potential/ renewable energy sources/ has ___. 2. and most abundant/ is/ Solar energy/ the cleanest/ renewable energy ___. 3. the year 2020/ was/ cheapest/ the/ source of energy/ in/ Renewable energy ___.
7. 4. of/ electricity generation/ The main sources/ in/ hydropower plants/ Viet Nam/ are ___. 5. installing/ Many countries/ wind turbines/ and other sources/ of energy/ are ___. 6. Coal/ many countries/ remained/ the/ in/ primary power source/ several decades ago ___. 7. in/ accounts for/ generation electricity/ 3.5 percent/ of/ Wind energy/ Canada ___. 8. are/ Businesses and households/ a/ facing/ very serious/ international energy crisis ___. II. Complete the second sentence so that it means the same as the first one. 1. It’s good if children do something to save energy at home. Children should ___ 2. They will probably buy devices that run on electricity. They might ___ 3. Hydropower is larger than any other renewable energy source for electricity. Hydropower is ___ 4. It is necessary for US to reduce the fossil fuel consumption to save the environment. We must ___ 5. In the past people didn’t use as much renewable energy as they do now. Now people use ___ 6. My brother is interested in riding an electric motorbike to school. My brother likes ___ 7. Although Eric is a child, he knows how to use water efficiently. Eric is___ 8. There is a diverse energy fuel resource of various types in Viet Nam. Viet Nam ___ III. Make advice or suggestions, using the words and phrases below to help you. You can add necessary words. 1. Governments should do many things to solve the problems of energy shortage and pollution. 2. They should encourage people to use public transportation. 3. They should increase the tax on petrol.
8. 4. They should reduce the use of fossil fuels, such as coal, natural gas and oil. 5. They should use renewable energy sources like the sun, wind and water. 6. They should look for new renewable energy sources for our future and the future of the planet. ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___