5. Scientists are looking for an effective way to reduce energy _______________. (consume)6. The stream is (cover)................................. with foam.7. Miss Black is a volunteer (conserve)..................................................8. If all the (pollute)..........................................go on , what’s going to happen?9. She was (cheer).............................................. when she passed the exam.

10. The environment is (extreme).......................................... polluted.

VII.  Choose the best answer.

1.Scientists are looking for an…….way to reduce energy consumption.(effect/effecting /effective/effectively)

2.I suggest ………money for the poor in our village. (save/to save/saving/saved)

3.  Solar energy doesn’t cause......... ( pollution/polluted/pollute/unpolluted)

4.  Who looks................... your children when you are away from home?(for /at /after /to)

5.  He shouted and looked.................. at me when I broke the vase.(angry/angrily/angrier/ angried)

6.  Everyone must take part in.............. deforestation.(to prevent/prevent/preventing/prevented)

7.  I’m very.......... that I will go to Dalat tomorrow.(excited/ excite /excitedly/ exciting)

8.  He is tired............ he stayed up late to watch TV.(so/but/and/because)

9.  If Ba................ rich, he would travel around the world( is/was/will be/were)

10.  We are saving money......... we want to buy a new house. (so/because/but/ and)

11.  Your teacher writes poems and stories,................ she? (don’t/won’t/didn’t/doesn’t)

12.  The car............. she has just bought is very modern( which/that/X/all are correct)

13.  My father has to go to work................ it is raining hard.( although/but/because/and)

14.  She doesn’t know the man.......... sent her this letter.( which/who/whom/whose)

15.  If you press that button, the alarm.............. (will ring/ringing/ring/would ring)

16…............ air is one of the many problems we have to solve.(pure/polluted/dust/pleasant)

17.  We haven't met since we..................... school. ( left/leave/have left/had left)

18.  Where......................... you go if you have a car ?( would/have/will/did)

19.  Her family is aware of saving................ (energy/energize/energetic/energetically)

20.  I think we should use public transport instead............ motorbikes( by/with/of/for)

21.  He will be in America from Sun day............. Friday (at/on/to/in)

22.  You should reduce the............. of water your family use (number/amount/much/many)

23.  A.......... faucet can waste 500 liters of water a month ( drip/dripped/dripping)

24.  Lan is hungry............. she has not eaten all day (because/if/so/although)

25.  Ba is pleased............. his English is improving day by day ( so/though/that/but)

26.  Gases from factories and vehicles mainly cause air... ( pollute/pollution/polluted/unpolluted)

27.  I suggest that you........... study harder to please your parents ( may/might/should/could)

28.  Family members .........live a part try to be together at Tet ( who/whom/which/whose)

29.  That’s is very kind........ you ( in/at/for/of )

30.  She likes the full-moon festival........... happens in mid-Fall ( who/whom/when/which)

31.  I have no money......... I can’t buy my mother a present ( though/because/so/however)

32.  Nga,....... is standing over there is my best friend ( who/that/whom/whose)

33.  Sunday is a day............. so everybody is free from work or study ( on/of/in/off)

34.  I............. late for the meeting so don’t wait for me ( might/might be/should be/must be)

35.  He eats a lot............. , he is still thin ( and/or/although/however)

VII.  Choose the best answer.

1.Scientists are looking for an…….way to reduce energy consumption.(effect/effecting /effective/effectively)

2.I suggest ………money for the poor in our village. (save/to save/saving/saved)

3.  Solar energy doesn’t cause......... ( pollution/polluted/pollute/unpolluted)

4.  Who looks................... your children when you are away from home?(for /at /after /to)

5.  He shouted and looked.................. at me when I broke the vase.(angry/angrily/angrier/ angried)

6.  Everyone must take part in.............. deforestation.(to prevent/prevent/preventing/prevented)

7.  I’m very.......... that I will go to Dalat tomorrow.(excited/ excite /excitedly/ exciting)

8.  He is tired............ he stayed up late to watch TV.(so/but/and/because)

9.  If Ba................ rich, he would travel around the world( is/was/will be/were)

10.  We are saving money......... we want to buy a new house. (so/because/but/ and)

1.Scientists are looking for an…….way to reduce energy consumption.(effect/effecting /effective/effectively)

2.I suggest ………money for the poor in our village. (save/to save/saving/saved)

3.  Solar energy doesn’t cause....... ( pollution/polluted/pollute/unpolluted)

4.  Who looks.................. your children when you are away from home?(for /at /after /to)

5.  He shouted and looked............... at me when I broke the vase.(angry/angrily/angrier/ angried)

6.  Everyone must take part in............ deforestation.(to prevent/prevent/preventing/prevented)

7.  I’m very......... that I will go to Dalat tomorrow.(excited/ excite /excitedly/ exciting)

8.  He is tired........... he stayed up late to watch TV.(so/but/and/because)

9.  If Ba................ rich, he would travel around the world( is/was/will be/were)

10. We are saving money....... we want to buy a new house. (so/because/but/ and)

1. Scientists are looking for an………….. way to reduce energy consumption
A. effect B. effection C. effective D. effectively

2. We can………….. easily in the daylight.
A. to read B. reading C. readed D. read

3. She won't take all these suitcases………….. she likes to travel light.
A. so B. but C. because D. therefore

4. They are completely short of water now. A number of people have died because of this …
A. shortage B. short C. shorten D. shortly

5. What can we do to spend less………….. lighting?
A. in B. on C. about D. of

21. Scientists are looking for an ____ way to reduce energy consumption. (effect)
22.  I want to see the _____ of environment from the local authority. (protect)
23.  Solar energy is ____ by the sun. (provision) 
24. What can we do _____ energy? (conservation)
25. Kristen, remember to use energy more ______! (efficient)
26. She was _____ pleased that she passed the exam. (extreme) 
27. He is one of the best _____ in the world. (environment)
28. We can ____ the environment by reducing air _____(protection/pollute) 
29. It's _____ that he has overcome all difficulties. (wonder) 
30. want to see the _____  of environment from the local authority. (protect)
31. Scientists are looking for an ____ way to reduce energy _____ (consume)
32. There have been some __________ in unemployment. (reduce)
33. That lamp uses very little _______. (electric)

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

A useful theory, in addition to explaining past observation, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."

Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hyphthesis is a leap into the unknown.It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

A useful theory, in addition to explaining past observation, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."

Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hyphthesis is a leap into the unknown.It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

The word "supported" in paragraph 2 is closest in meaning to x

A. upheld

B. finished

C. adjusted

D. investigated

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

A useful theory, in addition to explaining past observation, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."

Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hyphthesis is a leap into the unknown.It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

A useful theory, in addition to explaining past observation, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."

Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hyphthesis is a leap into the unknown.It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

According to the second paragraph, a useful theory is one that helps scientists to x

A. observe events

B. publicize new findings

C. make predictions

D. find errors in past experiments

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

A useful theory, in addition to explaining past observation, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."

Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hyphthesis is a leap into the unknown.It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

In Science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.

A useful theory, in addition to explaining past observation, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be revised or rejected.

Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."

Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses. In a way, any hyphthesis is a leap into the unknown.It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.

In the fourth paragraph, the author implies that imagination is most important to scientists when they x

A. formulate possible solutions to a problem

B. evaluate previous work on a problem

C. close an investigation

D. gather known facts