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We are looking for cheap, clean, and effective sources of energy. These types of energy won’t cause pollution or waste natural resources. Solar power is one of these energy sources. It will (1) be provided freely by the sun. One percent of the solar energy that reaches the earth will be enough to provide electricity for the whole population of the world. Solar energy will (2) be used by many countries around the world. Solar panels will (3) be placed on the roofs of houses and other buildings and the sun’s energy will be used to heat water. The energy will (4) be stored for a long time. We hope that by using solar energy the problem of the energy shortage will (5) be solved.
1.Sources of energy
Solar power harvests the energy of the sun through using collector panels to create conditions that can then be turned into a kind of power. Large solar panel fields are often used in desert to gather enough power to charge small substations, and many homes use solar systems to provide for hot water, cooling and supplement their electricity. The issue with solar is that while there is plentiful amounts of sun available, only certain geographical ranges of the world get enough of the direct power of the sun for long enough to generate usable power from this source.
Complete the following sentences with an approriate form of the word in BLOCK
CAPITALS.
1. Lan's classroom is on the second floor. (TWO)
2. Mai speaks English better than me. (WELL)
3. The Great Wall of China is the world's longest structure. (LONG)
4. There are a lot of beautiful mountains in Viet Nam. (BEAUTY)
5. I'm Vietnamese. What's your nationality? (NATION)
Fill in each gap with ONE suitable preposition.
1. Hoa lives on 12 Tran Phu street. She doesn't have many friends there.
2. There is an English examination on Friday, 11thDecember.
3. Many Asian animals are in danger.
4. The movie theater is between the restaurant and the bookstore.
5. Nam is the strongest of the three boys.
1. There has been some (reduce) ___reduction___in unemployment.
2. The child is the (produce) ___production___of a broken home.
3. Flowers are often (fertile) ___fertilized___by bees as they gather nectar. (flower honey)
4. He was the Queen’s (represent) ___representative___at the ceremony.
5. Workers should wear full (protect) ___protective___clothing.
6. His father is an (environment ) ___ environmentalist___health officer.
7. A (nature) __ naturalist___is a person who studies animals, plants, birds, and other living things.
8. He got into (difficult) __ difficulty___while swimming and had to be rescued.
9. A service was held in (remember) ___ remembrance __ of local soldiers killed in the war.
10. I can’t think of any possible (explain) ___ explanations___ for his absence.
1) I think we should help street children in our city because they need to have a good life.
2) So far I have donated many books and clothes for children.
3) Last month I helped my friend do homework.
4) I feel more confident after joining a charitable organization because I had a chance to make friends.
5) In order to make our school green and clean , my classmates and I have dicussed about many solutions.
6) One of classmates comes from a poor family, so I have helped her a lot.
7) I decided to volunteer to clean the street up because I think it\'s good for the environment.
8) I think we can help erderly people by sharing my time with them.
9) I belive that volunteers are the happiest people because they feel great when they do something good for people.
Exercise 12 :
1. It took Mr.Hoang half an hour to walk to work yesterday.
=> Mr.Hoang spent half an hour walking to work yesterday.
2. What is the price of this cap?
=> How much is this cap?
3. You shouldn't eat too much meat
=> You'd better not eat too much meat
4. Lan is the youngest of the three sisters
=> Lan has two sisters
5. Our house is older than any other house in the living centre
=> Our house is the oldest one in the living centre
6. Mai usually works hard
=> Mai is usually a hard worker.
7. There are eight hundred stamps in Hoa's collection
=> Hoa's collection has eight hundred stamps
8. How heavy is the chicken?
=> What is weight of the chicken?
9. How much is this book?
=> What is the price of this book?
Exercise 11 :
1. Listening to music is much more interesting than going to the circus.
=> I prefer listening to music to going to the circus.
2. We didn't enjoy the trip because of the heavy rain
=> The heavy rain prevented us from enjoying the trip
3. You shouldn't eat too many candies
=> You had better not eat too many candies.
4. He is a slower and more careful driver than Lan
=> He drives more carefully than Lan
5. The visitor spoke too quickly that I couldn't understand what he said
=> The visitor spoke too quickly for me to understand
6. You shouldn't eat too much meat
=> You'd better not eat too meat
7. How heavy is the chicken?
=> What is weight of the chicken?
8. Hoa is a hard students
=> Hoa studies hard
9. It takes me about two hours each day to do my homework
=> I spend about two hours each day doing my homework
10. He is a slower and more careful driver than I am
=> He drives more carefully than I do.
1.
Non-renewable energy sources (use up) will be used up in the future.
2.
Sources of energy (use) will be used effectively in the future.
3.
The washing machine (not repair) won't be repaired by the mechanic tomorrow.
4.
Next month, all light bulbs in the classroom (replace) will be replaced by the low energy ones.
5.
The sun and the wind (develop) will be developed as two main alternative sources of energy in the future?
6.
The use of fossil fuels (reduce) will be reduced next year.
7.
A lot of money (spend) will be spent on heating this winter?
8.
The tax on petrol (not increase) won't be increased. by the government this summer.