Complete the sentences with correct form of adjectives given.  fast tender easy valuable young  yellow big heavy excite large 1. This suitcase is ______________ than the others. 2. My sister is three years ______________ than me. 3. Dad’s car is much ______________ than mine. 4. There is nothing ______________ than going on a trip. 5. Your T-shirt looks  ______________ with this skirt! 6. Mike is ______________ than Tom, my ex-boyfriend. 7. Gold is ______________ than silver. 8. New York is ______________ than Seattle. 9. I think geography is much ______________ than science. 10. Which is ______________, a tiger or a lion?

I: Complete the sentences using the correct comparative, superlative form or “as ...as” of the adjectives given. 1. Some people think that Music isn’t (important) _______________ Maths or Science. I don’t agree. 2. The guitar is one of the (popular) _______________ instruments among young people. 3. It’s (easy) _______________ to play an instrument after you’ve been practising for a while. 4. I play the piano (good) _______________ than I play the violin. 5. Guitars aren’t (expensive) _______________ many other instruments. 6. Saxophones are (heavy) _______________ than a lot of instruments. 7. Traditional pianos are (suitable) _______________ than keyboards for beginners. 8. Mai is (good) _______________ singer in

I: Complete the sentences using the correct comparative, superlative form or “as ...as” of the adjectives given. 1. Some people think that Music isn’t (important) _______________ Maths or Science. I don’t agree. 2. The guitar is one of the (popular) _______________ instruments among young people. 3. It’s (easy) _______________ to play an instrument after you’ve been practising for a while. 4. I play the piano (good) _______________ than I play the violin. 5. Guitars aren’t (expensive) _______________ many other instruments. 6. Saxophones are (heavy) _______________ than a lot of instruments. 7. Traditional pianos are (suitable) _______________ than keyboards for beginners. 8. Mai is (good) _______________ singer in

VII.    Write sentences, using the words given with the correct form of the adjectives.

1.   Which/ dry/ Sahara Desert/ or/ Atacama Desert?

      ________________________________________________________________

2.   Cat Ba Island/ large/ island/ Ha Long Bay

      ________________________________________________________________

3.   The Mekong River/ long/ river/ Vietnam

      ________________________________________________________________

4.   Angel Falls/ Venezuela/ high/ waterfall/ the world.

      ________________________________________________________________

5.   The Amazon River/ wide/ the Nile River

      ________________________________________________________________

6.   Ayers Rock/ famous/ landmark/ Australia               

      ________________________________________________________________

7.   Vietnamese people/ often/ clean/ decorate/ houses/ Tet.

      ________________________________________________________________

8.   The air / the city / polluted / the air / the countryside.

III. Complete the sentences with the correct form of comparatives or superlatives of the adjectives.
1. The Great Wall of China is the world’s (long) ___________________structure.
2. The Me Kong River is (long) ___________________ than the Red River.
3. Mexico City is (big) ___________________ than Tokyo.
4. Ho Chi Minh City is the (big) ___________________ city in Viet Nam.
5. China has the (big) ___________________ population in the world.

VI. Complete the sentences with the correct comparative form of the adjectives in the box.

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1. It’s ……………………. in the north of Viet Nam than in the south.

2. Is a snake ……………………. than a dog?

3. Doing homework is ……………………. than playing video games.

4. The streets in my neighbourhood are ……………………. than in your neighbourhood.

5. Travelling by air is …………………….  than travelling by bus.

Complete each sentences with the correct form of one of the given verbs given.

     1.  Burning coal and oil ........................ carbon dioxide that harms the environment.

     2.  Many families ........................ biogas.

     3.  Using non-renewable energy sources ........................ the environment.

     4.  Solar power can be ........................ into electricity.

     5.  There ........................ a shortage of energy in the near future.

     6.  Producing biogas energy ........................ burning waste, and this may have bad impacts on the environments.

     7.  Coal is a non-renewable source of energy, because it cannot be easily ........................

     8.  The wind turns turbines to ........................ energy.

 VI  Choose the correct answer (A, B, C or D).

     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 21^st 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

 VII  Give the correct form of the word given to complete the sentence.

     1.  Tidal energy is renewable, ............................ and clean.         (plenty)

     2.  Wind will be used as an ............................ friendly sources of energy.     (environment)

     3.  There are many ways will be used to solve the problem of ....................   (pollute)

     4.  Solar power can be used to ............................ or cool our houses.   (hot)

     5.  ............................, fossil fuels are harmful to the environment.        (fortunate)

 VIII  Find and correct the mistake in each sentence.

     1.  You can save the electricity by turn off the lights when not using them....          

                   A                B              C                              D     

     2.  He will clean his house at 9 am tomorrow.                                       .........

                A    B                   C         D

     3.  My sister will be buying a house in the city center next year.           .........

                        A       B                          C               D

     4.  They will build a five-stars hotel on this street.                                .........

                       A             B      C   D

     5.  A solution for the environment problem will soon be finding by scientists.            

              A                                      B         C              D

C. READING  

 IX  Fill in each blank in the following passage with one suitable word.

     With the development of science and technology, more and more (1) ......................... is used every day. Nowadays, many (2) ......................... areas in Vietnam have been electrified, and more (3) ......................... is needed. If everyone (4) ......................... energy, it will quickly run out. (5)     ......................... at school should learn how to (6) ......................... energy, for example, they should turn (7) ......................... the electric lights when they leave their classrooms. Moreover, we may waste electricity at home if we use a lot of light (8) ......................... By not wasting energy, we will save a lot of (9) ......................... resources, such as (10) ......................... and oil.

 X  Read the passage and answer the questions given.

     Many people still believe that natural resources will never be used up. Actually the world’s energy resources are limited. Nobody knows exactly how much fuel is left. However, we also should use them economically and try to find out alternative sources of power. According to Professor Marvin Burnham of the New England Institute of Technology, we have to start conserving coal, oil and gas before it is too late; and nuclear power is the only alternative.

     However, many people don’t approve of using nuclear power because it is very dangerous. What would happen if there were a serious nuclear accident? Radioactivity causes cancer and may badly affect the future generations. The most effective thing is that we should use natural resources as economically as possible.

 Answer the questions:

     1. Can natural resources be used up someday?

     .......................................................................................................................

     2. What should we do if we don’t want the natural resources to run out of?

     .......................................................................................................................

     3. Why don’t people prefer using nuclear power?

     .......................................................................................................................

     4. What does the radioactivity cause for young people?

     .......................................................................................................................

     5. What will you do to protect your environment?

     .......................................................................................................................

XI. Complete the sentences with the correct form of the adjectives in brackets.

6. Are you _______________ in football? Oh, it’s very _______________ (interest)

7. The football match was quite _______________. I enjoyed it. (excite)

8. It’s sometimes _______________ when you have to ask people for money. (embarrass)

9. Do you usually get _______________? (embarrass)

10. I had never expected to get the job. I was really (amazing/ amazed) when I was offer it.