26. Solar energy is and it can be replaced easily.
A. new B. renew C. renewable D. non-renewable
27. For many people living in rural areas, biogas is a cheap energy available.
A. method B. production C. supply D. consumption
28. Nuclear energy can provide enough electricity for the world’s needs, but it is very .
A. risk B. risky C. endanger D. endangered
29. Alternative sources of energy are and safe.
A. enough B. not enough C. short D. abundant
30. Sources of energy will be used more for our future.
A. effective B. efficient C. effectively D. efficiently
31. A sky safety system will stop everyone crashing in the sky.
A. at B. from C. through D. for
32. regular light bulbs with low energy light bulbs, which use less energy.
A. Turn B. Replace C. Place D. Put
33. Without good insulation, the in our houses goes out through the windows, the doors, etc.
A. ice B. atmosphere C. amount D. heat
34. A(n) station will be built in the North of the country next decade.
A. hydropower B. water C. hydroelectricity D. energy
35. We can the problem of energy shortage by using solar energy.
A. carry out B. get C. recover D. solve
36. Don’t forget to the lights when leaving a room or going to bed.
A. turn B. turn on C. turn off D. turn out
37. What should we do to our electric bills?
A. fall B. cut down C. drop D. reduce
38. The use of biogas for cooking in the countryside.
A. will increase B. will be increasing C. will be increased D. will have increased
39. The digital camera belongs to Nick. That camera is .
A. him B. he C. his D. one
40. Is this schoolbag ?
A. you B. your C. yours D. them
41. The city is working on a project the slums with clean water.
A. providing B. provide C. to provide D. to providing
42. In that country, over 30% of the population live in .
A. poor B. poorer C. poverty D. the poor
43. Children who malnutrition can have a lot of diseases.
A. suffer from B. avoid C. gain D. obtain
44. There are more problems in the slums than in the areas.
A. wealth B. richness C. wealthy D. country
45. is quite popular in an overcrowded city where you can see people sleeping in a park or under a bridge.
A. Homeless B. The homeless C. Homelessly D. Homelessness
V. Complete the sentences, using the correct possessive form of the words in brackets.
46. This schoolbag is . (I)
47. These books are . (we)
48. Those books are . (they)
49. This raincoat is . (Nick)
50. is light blue, but my hat is red. (she)
51. This is my pen, and that one is . (you)
52. Our flat has four rooms, and has five rooms. (they)
53. This notebook is . (you)
54. These pencil are . (Ann)
55. Our car is a Chevrolet, but is a Toyota. (they)
