Bài tập tiếng Anh 11 tự luận (unit 11)

UNIT 11 - SOURCES OF ENERGY I. Put the words in the correct column. shred splendid spruce splash shrivel shrub sprout splint sprig splutter /spr/ /ʃr/ /spl/ II. Complete each sentence with the correct form of the word in brackets. 1. Remember to turn off all the lights before you leave to save (electric) 2. Scientist are searching for fuels, such as the energy of the sun. (alternate) 3. People should conserve resources because once used up, it can never be replaced. (nature) 4 energy is not only plentiful and infinite but also clean and safe. (sun) 5. Farmers add to their land to make it productive. (fertilize) 6. Vehicles are one of the causes of air pollution in big cities. (majority) 7. An important part of conservation is of waste. (prevent) 8. Many people think that the world's resources will never be up. (use) III. Reduce the relative clauses to participial phrases. 1. I don't like people who arrive late. 2. I live in a house which was built a century ago. 3. The people who work here are very interesting. 4. The handkerchief which was embroidered by my sister was really beautiful. 5. Do you want to meet the man who taught me how to drive? 6. The cake which was made by my mother was very delicious. 7. This morning I received a letter which upset me a lot. 8. The composition which was written by Jane was really interesting. IV. Rewrite the sentences, using relative clauses. 1. The last person to be interviewed yesterday was Jack. 2. Valetina Tereskova was the first woman to fly into space. 3. The only person to remain in the classroom was Peter. 4. Is there any place for us to stay tonight? 5. This is the second person to be killed in that way. 6. He hasn't got anything to wear. 7. He was the first man to tell me the truth. 8. There are some reports for you to type right now. V. Make sentences from the cues given. 1. Water / create electricity / when / move / a high place / a lower place. 2. Waterpower / give / energy / without / pollution. 3. The sun / release / large amounts / energy every day. 4. Many countries / solar energy / their daily life. 5. The potential / alternative sources / energy / nature / great. 6. Fossil fuels / will / exhausted / within / relatively short time. 7. Once / use up / natural resources / can never / replace. 8. The sun / provide / light / heat. VI. Fill in each gap with a correct preposition. 1. We should prevent everyone exploiting minerals. 2. Polluted environment is harmful our health. 3. My father is fond reading newspapers every morning. 4. The energy of the sun can be changed electricity. 5. Forests are useful man in several ways. 5. Natural resources are divided two groups: renewable and nonrenewable. 7 Using natural resources wisely depends everybody's awareness. 8. His illness accounts his absence. VII. Fill in each gap with one suitable word in the box. potentials electrical released includes power between provides available 1 ELECTRIC POTENTIAL ENERGY Electric potential energy is the ability of electric forces to do work during rearrangement of positions of charges (as for example when electric charge flows in a circuit), and this kind of potential also (1) the common chemical potential energies - energy required to break chemical bonds, or obtained from forming them. Chemical (2) can be seen directly in the electrical potentials of electrochemical cell (grouped in batteries), and fuel cells. The energy (3) in lightning, from burning a litre of fuel oil, or from using an amount of electrical (4) from an electrical-wiring system, are all common examples of extracting work from motion of charge, which is stored beforehand as electromagnetic potential energy. In use of (5) energy from an electrical wiring system, or from a chemical battery, the electric potential energy (6) per amount of electric charge moved (which in turn is given by electric current multiplied by time), is represented by the electrical potential difference (measured in volts) (7) the conductors. Thus, when one ampere flows for one second across a potential of one volt, one joule of energy is made available from the electrical potential. The force which (8) for the work that is done, is provided to the charge by an electrical field. The End ~~ (*)___ KEY TO TEST 11 I. /spr/ /ʃr/ / spl / sprig sprout spruce shred shrub shrivel splint splash splendid splutter II. 1. electricity 2. alternative 3. natural 4. Solar 5. fertilizers 6. major 7. prevention 8. used III. 1. I don't like people arriving late. 2. I live in a house built a century ago. 3. The people working here are very interesting. 4. The handkerchief embroidered by my sister was really beautiful. 5. Do you want to meet the man teaching me how to drive? 6. The cake made by my mother was very delicious. 7. This morning I received a letter upsetting me a lot. 8. The composition written by Jane was really interesting. IV. 1. The last person who was interviewed yesterday was Jack. 2. Valetina Tereskova was the first woman who flew into space. 3. The only person that remained in the classroom was Peter. 4. Is there any place where we can stay tonight? 5. This is the second person who was killed in that way. 6. He hasn't got anything that he can wear. 7. He was the first man who told me the truth. 8. There are some reports which you have to type right now. V. 1. Water can create electricity when it moves from a high place to a lower place. 2. Waterpower gives energy without pollution. 3. The sun releases large amounts of energy every day. 4. Many countries use solar energy for their daily life. 5. The potential of alternative sources of energy in nature is great. 6. Fossil fuels will be exhausted within a relatively short time. 2 7. Once used up, natural resources can never be replaced. 8. The sun provides us with light and heat. VI. 1. from 2. for 3. of 4. into 5. to 6. into 7. on 8. for VII. 1. includes 3. released 5. electrical 7. between 2. potentials 4. power 6. available 8. provides 3 . UNIT 11 - SOURCES OF ENERGY I. Put the words in the correct column. shred splendid spruce splash shrivel shrub. that is done, is provided to the charge by an electrical field. The End ~~ (*)___ KEY TO TEST 11 I. /spr/ /ʃr/ / spl / sprig sprout spruce shred shrub shrivel splint splash splendid splutter II. 1.