IV. Choose the word whose main stressed syllable is placed differently from that of the other in each group.
1. A. musician B. enormous C. natural D. improvement
2. A. effective B. plentiful C. dangerous D. limited
3. A. population B. education C. consumption D. satisfaction
4. A. energy B. countryside C. changeable D. volunteer
5. A. renewable B. artificial C. unfortunate D. continuous
6. A. different B. serious C. effective D. regular
7. A. dangerous B. countryside C. energy D. volunteer
8. A. incapable B. sincere C. loyalty D. success
9. A. development B. satisfaction C. population D. education
10. A. interfere B. convenient C. referee D. cigarette
11. A. attraction B. humorous C. acquaintance D. unselfish
12. A. changeable B. dioxide C. countryside D. natural
13. A. important B. plentiful C. familiar D. convenience
14. A. disease B. service C. standard D. tourist
15. A. agriculture B. industrial C. behavior D. economy
V. Choose the best answer to complete each of the following sentences.
1. The wind, the sun, and the wave are some types of _____ sources of energy.
A. changeable B. alternative C. cheap D. costly
2. Remember to __________ the lights before going to bed.
A. turn B. turn on C. turn off D. stop
3. People will reduce energy __________ as much as possible.
A. consume B. consumption C. expense D. expenses
4. Nuclear power is expensive and dangerous __________ our environment.
A. for B. to C. in D. with
5. Human is looking for a clean, cheap and __________ sources of energy.
A. effective B. effect C. effectively D. effectiveness
6. Low energy light bulbs should be used to __________ electricity.
A. spend B. buy C. convert D. save
7. We must __________ the amount of water our family used every day.
A. lower B. reduce C. lessen D. narrow
8. At this time next month we __________ to Ha Long Bay for a holiday.
A. will go B. will going C. will be gone D. will be going
9. By the middle of the 21st century, people in developing countries __________ more renewable energy.
A. uses B. will be using C. used D. have
10. Fossil fuels are very common in our society but they _____ the environment.
A. renew B. provide C. waste D. pollute
11. When you save energy, you not only save money, you also reduce the demand for ___ such as coal, oil, and natural gas and that is a great way to play a part in saving the planet.
A. carbon footprint B. electricity C. fossil fuels D. biogas
12. In India, the demand for __________ has always been more than the supply.
A. shortage B. sources C. slogan D. electricity
13. __ energy is produced by collecting sunlight and converting it into electricity.
A. Hydro B. Nuclear C. Solar D. Wind
14. There are many available __ power sources in Vietnam including sun, wind, water, etc.
A. nuclear B. hydro C. renewable D. solar
15. Laos and Cambodia have big plans for building up to 11__ on the lower Mekong.
A. dams B. slogans C. energy D. coals
16. ___ can be an excellent source of free, renewable energy for poor farmers.
A. Turbine B. Biogas C. Solar panel D. Bulb
17. The government has warned that Britain will face power __ in the coming winters.
A. coal B. shortages C. slogans D. energy
18. Wind power is one of the earliest ____sources of energy used by humankind.
A. alternative B. polluted C.
