Hướng dẫn giải 

1. shrink 

2. spraut 

3. splendid 

4. splash 

5. shrug 

6. shivel 

Exercise 2. Choose the best option A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation.

Chọn đáp án có phần gạch chân khác với các đáp án còn lại

1. A. probably                     B. aware

C. amount                          D. available

2. A. figure                         B. support

C. petroleum                       D. hundred

3. A. quit                            B. equal

C. technique                       D. question

4. A. instead                       B. decrease

C. reached                          D.scenes

5. A. split                            B. climb

C. include                            D. spring

Hướng dẫn giải 

1. B             2. D            3. C

4. A            5. B

Exercise 3. Choose the best option A, B, C or D to indicate the word that differs from the other three in the position of primary stress.

Chọn đáp án có trọng âm khác với các từ còn lại. 

1. A. support                B. decrease

C. increase                   D. scientist

2. A. imagine                B. different

C. average                    D. government

3. A. problem                B. promise

C. prefer                       D. perfect

4. A. release                  B. limit

C. control                      D. increase

5. A. expected               B. tournament

C. policy                        D. punishment

 Hướng dẫn giải 

1. D         2. A          3. C          4. B          5. A

Exercise 4. Choose the best option A, B, c or D to complete each of the sentences.

Chọn đáp án đúng nhất để hoàn thành câu.

1. Solar power is clean and there is a lot of it________ sunny places.

A. in                          B. under

C. on                         D. at

2. People in poor countries have to spend hours each day_______ fuel wood.

A. gathered                B. to gather

C. gathering               D. gather

3. The earth revolves around the sun once in________

A. sixty minutes                                               

B. twenty-four hours

C. three hundred and sixty-five days

D. seventy minutes

4. Gravity is__________ .

A. the movement of the earth round the sun

B. the rotation of the earth on its axis

C. the pulling force of particles of matter

D. the movement of the earth round the moon

5. The temperature of the sun is______ that of the earth.

A. higher than

B. the same as

C. lower than

D. as high as

6. The best place________ in Hanoi is the West Lake.

A. fishing                  B. fish

C. to fish                   D. to fishing

7. Biogas is mainlv used____ cooking and heating.

A. at                         B. in

C. to                         D. for

8. Life on the earth depends_____ the sun.

A. to                         B. in

C. at                         D. on 

9. In some countries people use wind or sea_____ as the environmentally-friendly energy sources.

A. water

B. products 

C. waves 

D. weed 

10. People have used coal and oil to _____electricity for a long time.

A. generate 

B. generating 

C. generates 

D. generated 

11. Coals and oil are non- renewable ______sources. 

A. engineer 

B. engineering 

C. energy 

D. energetic 

12. People on earth are _____need of more nuclear energy.

A. at                       

B. on

C. for

D. in 

13. People have to look for new energy sources because coal and oil will be used ____

A.for

B. to   

C. up 

D. in 

14. The tendency to use renewable energy sources is____the increase. 

A. on 

B. in 

C. up 

D. at 

15. Smoke ______people’s health.

A. effects

B. affects

C. affect

D. effect 

16.  In 1995, the top children’s movie to____was Pocahontas.

A. see

B. seeing

C. sees

D. saw

17. John couldn’t go to the playground with us because he had a report to ____for the following day.

A. writing                    B. write

C. writes                     D. wrote

18. He was so busy with his work that he didn’t have time to________ with his friends. 

A. talking                     B. talk

C. talks                       D. talked

19.It is the light and the heat of the sun________ make our life possible.

A. who                        B. that

C. where                     D. whose

20. Biogas is the largest energy________ available in rural areas in developing countries.

A. sources                   B. resources

C. source                     D. resource

Hướng dẫn giải 

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