21. Solar energy can help people ......................the earth’s resources.
A. recycle B. conserve C. reuse D. volunteer
22. There are 40 students in this class. There are 20 school boys . They .................50%
A. go on B. look for C. account for D. place
23. They turned on the fans ......................it was hot.
A. so B. as C. but D. however
24. Today we have Math, History, English ...................Chemistry.
A. or B. and C. but D. therefore
25. We can .............an ordinary 100 watt light bulb with an energy-saving bulb to save electricity.
A. heat B. install C. store D. replace
26. I am .......................that people have spoiled this area.
A. disappoint B. diapponting C. disappinted D. to disappoint
27. There’s nothing good on TV. Why don’t you turn it .................?
A. on B. off C. down D. up
28. We should ………..energy by turning off all the lights when they aren’t necessary.
A. waste B. save C. minimize D. prohibit
29. .......................many households use energy-saving lights bulbs, their electricity bill is still enormous.
A. Since B. Although C. When D. If
30. If you ……………talking in class, you ‘ll be punished.
A. turn on B. look after C. take off D. go on
31. They have to pay a big water bill ……...………they let the faucets drip freely.
A. because B. so C. and D. however
32. He suggested ……………..the gas bill on time.
A. paying B. she should pay C. that she should pay. D. A,B,C are correct

SOLAR ENERGY

Sunlight carries huge amounts of energy. You can feel the Sun’s energy when sunlight warms your skin on a summer day. To capture the Sun’s energy, scientists have developed solar cells, called photovoltaic cells. These cells convert sunlight into electricity. When sunlight hits a solar cell, some of the light energy is absorbed. This light energy causes the particles in the solar cell to move faster, and the movement of these particles creates electricity.

In some places, large panels of solar cells harvest sunshine to make electricity for homes and businesses. Solar cells have been placed on cars and appliances, too. Since the Sun sends abundant free energy streaming toward Earth 24 hours a day, people in many parts of the world, not just the sunniest places, have fixed solar cells and solar panels on the roofs of their houses or businesses to lower their energy costs. Experts say that the huge installation of solar panels in sunny regions could generate enough electricity to supply an entire country. Capturing this energy can help overcome our diminishing energy supply. New ways to capture this energy are being developed an the time to maximize efficiency.

1. What is the source of solar energy?

a. sunlight b. photovoltaic cells c. solar panels d. electricity

2. Solar cells are used __________

a. to collect energy from the sun b. to provide sunlight to houses

c. to convert sunlight into electricity d. both a and c are correct

3. Which of the following statements is true?

a. Solar cells absorb all of the light energy from the sun.

b. The light energy causes the particles to move faster to make electricity.

c. Solar energy can be used to power homes and businesses only.

d. Large solar panels have been placed on cars and appliances.

4. As used in line 9, ‘abundant’ most nearly means .

a. Unlimited b. dangerous c. plentiful d. clean

5. Where have people fixed solar panels?

a. In the sunniest places b. Anywhere outside their houses

c. Inside their houses d. On the roofs of their houses

6. As used in line 14, ‘diminishing’ most nearly means .

a. Decreasing b. increasing c. unending d. restoring

7. According to the passage, all of the following statements are true EXCEPT

a. the Sun produces a large amount of energy.

b. solar energy could provide enough electricity for the whole world

c. scientists are constantly developing new ways to capture the Sun’s energy

d. people use solar energy to reduce their energy costs.

Part 1: give the correct form of the verb or the words in brackets:

1. this film is very interesting. I (watch) in many times    ​

2. last night i (study) ,I heard a strange noise in the garden

3. by (use) solar energy, people can save the earth's natural resources

4. lan wishes she will (give) a love doll on her next birthday

5.would you like (have) some thing to eat?

6. the most (disaster) earthquake in japan occured in 1923

7. he has a good (know) of science

8. he will be (heavy) fined if he doesn't follow the traffic rules

15.  Reducing air pollution is one of five –of the solar energy. (beneficial )

16.  Most people  believe  that solar energy systems could help --- water consumption . (reduction )

in at least  rates.

17.  In humans corona viruses can cause mild diseases like the common cold as well as more ------ diseases such as COVID-19. ( severity )

18.  COVID-19  has been declared ---as a pandemic because of  spreading rapidly in a particular area or region. ( office )

19.   Most children in the UK remain in full-time ------ until they are at least 16 years old.( educate)

20.  Are all Vietnamese students -------to wear uniform at school? ( compulsory)

VIII.        Put the words in the correct order to make meaningful sentences.

21.  enough electricity for/ can provide / for hundreds of years/ Nuclear energy/ the world’s needs. //

à Nuclear energy

22.  but also/ plentiful and infinite/ Solar energy/ not only/ clean and safe/ is. //

è Solar energy

Cho các từ sau

FOSSIL FUEL ; INSTALLING ; ENVIRONMENT ; RENEWABLE; WATSE; SUSTAINABLE; EVELOPMENT ; RECYCLABLES;REDUCE;

MADE FROM; RESOURCES ;

Điền từ vào chỗ trống

1 We should save energy to protect the.....................

2 People should....................the amount of rubbish

3 By.................... solar panels on the rof,people can use solar energy

4 Hydroelectricity is....................water

5 Coal,oil and natural gas are called.......................

6 People are exausting natural......................

7 ...................energy is nearly unlimited

8 People had better not.................energy

9 ......................is one of all countries priorities

10 Bottle, cans, paper are..............

46. Many countries/ using/ solar energy.
A. Many countries are using the solar energy.
B. Many countries are using solar energy.
C. Many countries is using solar energy.
D. Many countries using the solar energy.
47. save/energy/one/best/way/conserve/natural/resources.
A. Saving energy is one of the best way to conserve natural resource.
B. To save energy are one of the best ways conserving natural resource.
C. To save energy are one of best ways to conserve natural resource.
D. Saving energy is one of the best ways to conserve natural resource.
48. most/ our electricity/ come/ use/ coal, gas, or oil.
A. Most our electricity come from using of coal, gas, or oil.
B. Most our electricity comes from using of coal, gas, or oil.
C. Most of our electricity are coming from the use of coal, gas, or oil.
D. Most of our electricity comes from the use of coal, gas, or oil