1C

2A

3D

4B

5A

6A

7D

8C

1. B

2. A

3. D

4. B

5. A

6. A

7. D

8. B

1.We should use reusable water bottles ……………..of plastic ones

A. because B. instead C. despite D. however

2. Walking to school will help _______________air pollution

A. refill B. reuse            C. reduce          D. recycle

3. We should go to school by bike to ______________ energy.

A. save B. protect                 C. prevent              D. pollute

4.  One of the bad things about _____________ pollution is that it can make fish die.

A. noise B. air C. soil        D. water

5. We should find creative ways to reuse old items before ___________ them away.

A. breathing B. washing            C. hearing            D. throwing

6. The prefix “re” in the word “reuse” means _____________

A. again                               B. none            C. for            D. against

7. If we cut down more forests, there ___________ more floods.

A.are B.were C.have been D.will be

8. That is ___________ book I’ve ever read.

A.the borest B.the most boring C.the boring D.the most bored

9. A robot can do ___________ different things from looking after a baby to building a house.

A.much B.many C.few D.little

10. It’s getting light. Shall I turn ___________ the light to save electricity?

A.off B.on C.up D.in 

1.B

2.C

3. A

4.D

  In every morning, I all way walk to school. Sometime, my school tell every students about Collet empty bottles, tins and glass. My school have a lot of trees so it don't need to plants more. But my school away save the water and electricity. We away reuse a lot of plas bag. We don't use bags or water bottle so we don't need to reuseable them.

Write ed

1. inexpensive/an/sport/is/badminton .

=> Badminton is an inexpensive sport.

2. have/never/we/by airplane/traveled

=> We have never traveled by airplane.

3. reusable bags/plastic ones/we should/instead of/use .

=> We should use reusable bags instead of plastic ones.

4. plants/if/will not/the soil/grow well/is polluted .

=> If the soil is polluted, plants will not grow well.

5. we/the historic monument/yesterday/visited .

=> We visited the historic monument yesterday.

Use the given word to wite complete sentences.

1.inexpensive/an/sport./is/Badminton/

.......Badminton is an inexpensive sport...........................................................

2.have/never/We/by airplane./traveled

........We have never traveled by airplane...........................................................

3.reusable bags/plastic ones./We should/instead of/use

.............We should use reusable bags instead of plastic ones......................................................

4.plants/If/will not/the soil/,/grow well./is polluted/

...........If the soil is polluted,plants will not grow well........................................................

5.we/the historic monument./Yesterday/visited/

...................Yesterday,we visited the historic monument.................................................

1.inexpensive/an/sport./is/Badminton/

=>Badminton is an inexpensive sport

2.have/never/We/by airplane./traveled

=>We have never traveled by airplane

3.reusable bags/plastic ones./We should/instead of/use

=>We should use reusable bags instead of plastic ones

4.plants/If/will not/the soil/,/grow well./is polluted/

=>If the soil is polluted,plants will not grow well

5.we/the historic monument./Yesterday/visited/

=>Yesterday,we visited the historic monument

IV, Write a suitable word in each blank to complete the passage.

Three ways everyone can help make the Earth a greener place is to reduce, reuse, and recycle! When people reduce it means they are using (1)……less………. of something. This allows us to create less waste. Turning off the (2)……faucet…………. when we brush our teeth is a simple way to reduce. This is a small action that prevents us from wasting water. Another small action people can take is to reuse things we already have. Taking bags to the store when we shop for food is one way to reuse them. Using both (3)………sides…….. of piece of paper before getting a new one is another way to reuse. (4)………Recycling………. is when new materials are created from old ones. Paper, plas, and metalare all materials that can be recycled. Things newspapers, soda cans, and plas bags can all be turned into new objects if we take the time to recycle them!

IV, Write a suitable word in each blank to complete the passage.

Three ways everyone can help make the Earth a greener place is to reduce, reuse, and recycle! When people reduce it means they are using (1) little  of something. This allows us to create less waste. Turning off the (2) water when we brush our teeth is a simple way to reduce. This is a small action that prevents us from wasting water. Another small action people can take is to reuse things we already have. Taking bags to the store when we shop for food is one way to reuse them. Using both (3) when of piece of paper before getting a new one is another way to reuse. (4) recycling is when new materials are created from old ones. Paper, plas, and metalare all materials that can be recycled. Things newspapers, soda cans, and plas bags can all be turned into new objects if we take the time to recycle them!

1. less

2. faucet

3. slides

4. Recyling

1,reusable

2,pollution

3,creative

1.We/ bags/ instead of/ plastic/ cloth/ bags/ should/ use/ garbage/ reduce/ to 

=>we should reduce cloth bags instead of plastic bags to reduce garmage

2.People/ often/ area/ with/ cover/ the/ burned/ thick/ a/ sterile dressing 

=> people often cover the burned area with a thick sterile dressing 

Đáp án: C

Giải thích: cấu trúc “one of the + Ns”: một trong những…

Dịch: Túi nilon là một trong những nguồn chính gây

Đáp án:C

Giải thích: cấu trúc “one of the + Ns”: một trong những…

Dịch: Túi nilon là một trong những nguồn chính gây ô nhiễm.