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30 tháng 11 2017

Giúp mình mấy câu này với

Put the verbs in brackets into the correct forms

1 he used for to (go).........go.......... to school by bike

2 the rich (be).........are........ not always happy

3 they (leave)...........have left............ for HANOI for 2 hours

4 Thera are a lot of b;ack clouds in the sky . It..is going to rain...(rain)

Tìm lỗi sau

1 Mary is not used for to get=<> getting up early in the mornings

2 The classroom has cleaned=> beeen cleaned by Lam

PUT THE VERBS IN BRACKETS INTO THE CORRECT FROM OF THE PRESENT SIMPLE OR THE PRESENT CONTINOUS 1. how do you make this soup ? It ................................wonderful ( taste) 2. anna can't come to the phone because she ...................................her hair( wash) 3. we usually .................................. abroad in summer ( go ) 4. ........................you......................... for your exams at the moment ? ( study ) 5. can you be quite , please ? I...
Đọc tiếp

PUT THE VERBS IN BRACKETS INTO THE CORRECT FROM OF THE PRESENT SIMPLE OR THE PRESENT CONTINOUS

1. how do you make this soup ? It ................................wonderful ( taste)

2. anna can't come to the phone because she ...................................her hair( wash)

3. we usually .................................. abroad in summer ( go )

4. ........................you......................... for your exams at the moment ? ( study )

5. can you be quite , please ? I ...................................to the radio ( listen )

6. he .................................................. next month ( get married )

7. i'm very tired . i ............................................very well at the moment ( not sleep )

8. they ............................. for lunch once a month ( meet)

9. john ! answer the door , please ! i ...................... dinner ( prepare )

10. it ..................................... a lot in this area in winter ( rain )

1
4 tháng 8 2018

PUT THE VERBS IN BRACKETS INTO THE CORRECT FROM OF THE PRESENT SIMPLE OR THE PRESENT CONTINOUS

1. how do you make this soup ? It ...........tastes.....................wonderful ( taste)

2. anna can't come to the phone because she ............is washing.......................her hair( wash)

3. we usually ............go..................... abroad in summer ( go )

4. ..........are.............you........studying................. for your exams at the moment ? ( study )

5. can you be quite , please ? I ...........am listening........................to the radio ( listen )

6. he .............is getting married..................................... next month ( get married )

7. i'm very tired . i ................am not sleeping............................very well at the moment ( not sleep )

8. they .......meet...................... for lunch once a month ( meet)

9. john ! answer the door , please ! i .......am preparing............... dinner ( prepare )

10. it ............rains......................... a lot in this area in winter ( rain )

Put the verbs in brackets in the correct form ( present simple and present continuous ) 1 Mr Green always ( go ) ..........................to work by bus . 2 It ( not rain ) .....................in the dry season . 3 They ( have ) .......................lunch in the cafeteria now . 4 My little sister ( drink ) .......................milk everyday . 5 The doctor sometimes ( return ) ...........................home late . 6 He ( write) ......................a novel at present ? 7...
Đọc tiếp

Put the verbs in brackets in the correct form ( present simple and present continuous )

1 Mr Green always ( go ) ..........................to work by bus .

2 It ( not rain ) .....................in the dry season .

3 They ( have ) .......................lunch in the cafeteria now .

4 My little sister ( drink ) .......................milk everyday .

5 The doctor sometimes ( return ) ...........................home late .

6 He ( write) ......................a novel at present ?

7 The Earth ( move) ........................around the sun .

8 something ( smell ) ............................good in the kitchen now .

9 Look ! The bus ( come ) .............................

10 They often ( thank ) ..........................me for what I do for them .

11 Listen ! Someone ( knok ) .....................at the door.

12 Two and two ( be) ...........................four.

13 The sun ( rise ) ......................in the East and ( set ) ..........in the Wwst .

14 For the time being we ( dye ) ..............our clothes .

15 My mother ( cook ) ......................dinner at the moment .

16 It ( get) ...................colder and colder.

17 Fewer and fewer people ( use ) .....................the bicycle as a means of transportation.

18 He often watches TV after dinner but this evening he ( listen ) ..............to the radio .

19 I usually ride my bike to school everyday but today I ( walk) ....................on foot .

20 This house ( look ) ..........................very old

2
16 tháng 9 2019

8 . smells ( mặc dù có now nhưng smell là trường hợp đặc biệt , không được chia ở HTTD nhé ! )

10. thank ( chủ ngữ là "they" )

16 tháng 9 2019

Put the verbs in brackets in the correct form ( present simple and present continuous )

1 Mr Green always ( go ) ...........goes...............to work by bus .

2 It ( not rain ) ...........doesn't rain..........in the dry season .

3 They ( have ) .......are having ................lunch in the cafeteria now .

4 My little sister ( drink ) ..........drinks.............milk everyday .

5 The doctor sometimes ( return ) ...........returns................home late .

6 Is He ( write) ..........writing ............a novel at present ?

7 The Earth ( move) ..............moves.........around the sun .

8 something ( smell ) ......smells......................good in the kitchen now .

9 Look ! The bus ( come ) ..........is coming...................

10 They often ( thank ) ............thank..............me for what I do for them .

11 Listen ! Someone ( knok ) ..........is knocking...........at the door.

12 Two and two ( be) .......are....................four.

13 The sun ( rise ) ............rises..........in the East and ( set ) ......sets....in the Wwst .

14 For the time being we ( dye ) .....are dying........our clothes .

15 My mother ( cook ) ......is cooking...............dinner at the moment .

16 It ( get) .......is getting ............colder and colder.

17 Fewer and fewer people ( use ) .........use............the bicycle as a means of transportation.

18 He often watches TV after dinner but this evening he ( listen ) ........is listening......to the radio .

19 I usually ride my bike to school everyday but today I ( walk) ........am walking............on foot .

20 This house ( look ) ..........looks................very old

#Yumi

25 tháng 8 2020

1. was wearing _ met

2. rained _ was carrying

3. mentioned _ had never heard

4. living _ eating

5. got _ had left

6. sat _ were being repaired

IX. ERROR IDENTIFICATION 14. The air conditioner who is in the sitting room is out of order. a b c d 15. I didn’t use the computer since last week so I don’t know what’s wrong with it. a b c d X. READING: Read the passage below and choose the best answer for each...
Đọc tiếp

IX. ERROR IDENTIFICATION

14. The air conditioner who is in the sitting room is out of order.

a b c d

15. I didn’t use the computer since last week so I don’t know what’s wrong with it.

a b c d

X. READING: Read the passage below and choose the best answer for each question.

When robots are widely used in the home, they will probably be used to do the cleaning, table-laying, scrubbing (cọ rửa) and washing-up, but it is considered unlikely that they will be used to do the cooking – at least, not in the near future.

In factories, mobile robots are already used to carry out a large number of the distribution and assembly tasks while human beings carry out research and produce plans for new products. Among the numerous jobs on the farm, robots will drive tractors, keeping their eyes on the ground in front to guide the tractor along a straight line.

The majority of the robots used at present do not look like human beings at all because their design is chiefly functional.

16. According to the passage, when used at home, robots will probably do all of the following EXCEPT ______

a. laying the table b. washing the dishes c. washing the clothes d. scrubbing

17. In factories what are robots used to do?

a. carry out assembly tasks b. carry out research c. produce plans d. both b and c

18. The word “their” in paragraph 2 refers to ____________.

a. tractors’ b. robots’ c. people’s d. farms’

19. Why don’t robots at present look like human beings?

a. Because they are widely used at home. b. Because they are mainly used in factories.

c. Because they are only used to guide tractors. d. Because they are mainly produced according to their function.

20. Which of the following statements is NOT true about robots?

a. They will be used to do the cleaning. b. In the near future they will be used to cook.

c. They are already used to carry out the distribution tasks. d. They will be used to drive the tractor.

XI. Supply the correct form of the verbs: be going to or present progressive to express future time.

1. I can’t go any further. I (sit) __________________ on that bench for a while.

2. The game ______________(start) at two o’clock tomorrow. I hope you can be there.

3. The service here is very slow. I (complain) ______________ to the manager if we’re not served soon.

4. I have a right to be heard, and no-one ____________(stop) me from putting my side of the argument.

5. The two leaders (meet) ______________________ for talks later this afternoon.

6. Are you (answer) ___________________________ my questions or not?

7. I have to get up early tomorrow. I (teach) _________________ a physics class at 8.00 in the morning.

8. Before I apply for the job, I (get) _______________________ more information about it.

9. The bank has announced that it (increase)____________ its interest rates by one per cent from tomorrow.

10. Brazil (play) _____________________________ Colombia in today’s final.

XII. Choose the best answer.

1. I work from Tuesday to Saturday, and Sunday and Monday are my _______.

a. working days b. days out c. breaks d. days off

2. The cottage is surrounded by the most glorious countryside.

a. ordinary b. honourable c. beautiful d. gloomy

3. Your tour includes a one-day _______ to the Grand Canyon by air.

a. camping b. travel c. excursion d. visit

4. We hope the excursion will help us _______ a lot after working hard.

a. relax b. relaxing c. relaxed d. be relaxed

5. Linda: “Excuse me! Where’s the nearest police station?”

Maria: “_______________”

a. It’s over there b. I’m afraid not c. Don’t worry d. Yes, I think

6. Tom: “How did you go to the city?”

John: “______________________”.

a. I came there by the coach b. I came here by train

c. I came here last night d. I came here by foot

7. “I’d better get back to the hotel room before the storm.” “OK, __________________ you later.”

a. I’m seeing b. I’ll see c. I see d. I am going to see

8. “Have fun, but don’t forget. You have to finish that paper.” “I know, Mom _____ it tomorrow. I already have the envelope.”

a. I’m mailing b. I won’t mail c. I mail d. I mailed

9. “Which project _____________ on next?” “I haven’t decided for sure. Probably the Space mobile”.

a. will you work b. are you going to work c. do you work d. did you work

10. “Look at those dark clouds!” “Yes, It looks like _______________ any minute”.

a. it’s going to rain b. it’s raining c. it will rain d. it rains

XIII. Read the passage carefully and choose the correct answer.

For the last few months I have spent every Saturday in my flat and have done nothing more exciting than work at home, read the newspapers and watch television. I had begun feeling bored with this and so, last weekend I though I would do something different. I rang up several of my friends and we decided to go to London for the day. I was really excited as I hadn’t been to London since I was ten. We decided to go by coach as this was by far the cheapest means of transport that was available even though it meant that we needed to get up very early. Once in London we decided to take a sightseeing tour as we wanted to see some of the famous buildings. After the tour we bought some sandwiches and ate them in a small park. In the afternoon two of us went shopping and the others went to the theater. We met up again at 6:30 p.m., and went to a small restaurant in Soho. The meal was really good but, unfortunately, it took much longer than we had expected. We had to get a taxi back to the coach station. Luckily, we got there just two minutes before our coach left.

1. According to the passage, the writer _______.

a. usually spends his weekend at home. b. went to London with some of his friends.

c. has lived in London for ten years. d. feels bored with his life.

2. He felt so excited about going to London because _______.

a. he hadn’t been there before. b. he hadn’t been there for ten years.

c. he went there ten years ago. d. he hadn’t been there for a long time.

3. Why did they decide to go by coach?

a. Because it was available. b. Because they wanted to start early.

c. Because other means of transport were more expensive. d. Because it was one of the most efficient means of transport.

4. Which of the following is true?

a. They all went shopping before going to theater. b. They made a sightseeing tour of London and then had lunch.

c. They had lunch in a small restaurant. d. They left the city at 6:30 p.m.

5. It can be inferred from the text that _______.

a. they nearly missed the coach because of the meal. b. they didn’t enjoy the meal in the restaurant very much.

c. the coach had already left when they got to the station. d. they missed the coach and had to take a taxi back.

XIV. Error identification:

1. I’ll fly to Mars next week. I’ve already gotten a ticket.

a b c d

2. Look! That plane is flying towards the airport. It’s landing.

a b c d

3. We will going to spend our summer holiday in Da Lat next month.

a b c d

4. I’m going to have a four-days trip in Ho Chi Minh City.

a b c d

4
14 tháng 11 2018

XII. Choose the best answer.

1. I work from Tuesday to Saturday, and Sunday and Monday are my _______.

a. working days b. days out c. breaks d. days off

2. The cottage is surrounded by the most glorious countryside.

a. ordinary b. honourable c. beautiful d. gloomy

3. Your tour includes a one-day _______ to the Grand Canyon by air.

a. camping b. travel c. excursion d. visit

4. We hope the excursion will help us _______ a lot after working hard.

a. relax b. relaxing c. relaxed d. be relaxed

5. Linda: “Excuse me! Where’s the nearest police station?”

Maria: “_______________”

a. It’s over there b. I’m afraid not c. Don’t worry d. Yes, I think

6. Tom: “How did you go to the city?”

John: “______________________”.

a. I came there by the coach b. I came here by train

c. I came here last night d. I came here by foot

7. “I’d better get back to the hotel room before the storm.” “OK, __________________ you later.”

a. I’m seeing b. I’ll see c. I see d. I am going to see

8. “Have fun, but don’t forget. You have to finish that paper.” “I know, Mom _____ it tomorrow. I already have the envelope.”

a. I’m mailing b. I won’t mail c. I mail d. I mailed

9. “Which project _____________ on next?” “I haven’t decided for sure. Probably the Space mobile”.

a. will you work b. are you going to work c. do you work d. did you work

10. “Look at those dark clouds!” “Yes, It looks like _______________ any minute”.

a. it’s going to rain b. it’s raining c. it will rain d. it rains

14 tháng 11 2018

trời ơi dài thế này sao tl đượcbatngo

24 tháng 2 2020

Find and correct the mistakes in the following sentences:

1. A pair of compasses are -> is used for draw circles.

2. He has just bought a pencil case to held -|> hold his pens and pencils.

3. A correction pen is used for cover -> covering writing mistakes.

4. British women overtake -> have overtaken British men in Internet usage since 2005.

5. How did your life change -> has your life changed over the past ten years.

6. Any kind of violence must not be allow -> allowed at school

7. These medicine must keep -> be kept out of children’s reach

8. The instruction must follow -> be followed strictly by the students

9. In the case of pupil being absent from school, messages can leave -> be left on the answering machine before 7:30 am

10. These pill must not take -> be taken if you are under 12 years old.

I. Choose the most suitable tense. 1. Why (are you going to buy/ will you buy) a new mountain bike? 2. Don’t phone between 8.00 and 9.00. I’ll study/ I’ll be studying then. 3. Look out! That tree (will fall/ is going to fall)! 4. Let me know as soon as Louise (will get/ gets) here. 5. Great news! Jean and Chris (will come/ are coming) to stay with us. 6. According to this timetable, the bus (is going to arrive/ arrives) at 6.00. 7. I have a feeling that something strange (is going...
Đọc tiếp

I. Choose the most suitable tense.

1. Why (are you going to buy/ will you buy) a new mountain bike?

2. Don’t phone between 8.00 and 9.00. I’ll study/ I’ll be studying then.

3. Look out! That tree (will fall/ is going to fall)!

4. Let me know as soon as Louise (will get/ gets) here.

5. Great news! Jean and Chris (will come/ are coming) to stay with us.

6. According to this timetable, the bus (is going to arrive/ arrives) at 6.00.

7. I have a feeling that something strange (is going to happen/ is happening) in a minute.

8. The doctor says I (will have/ am going to have) a baby!

9. Can you call me at 7.00, because (I’ll leave/ I’m leaving) tomorrow.

10. If you arrive late at the sale, the best things (will go/ will have gone).

II. Give the correct form of the verbs:

1. I can’t see you on Thursday afternoon. I (visit) our Birmingham branch.

2. George (not be) back until six. Can I take a message?

3. What (you/ buy) with the money you won in the lottery?

4. I don’t think you (have) any problems at the airport.

5. (You/ take) your dog with you to Scotland?

6. Can you answer the phone for me? I (lie down) for a while.

7. All the hotels are full. Where (we/ spend) the night?

8. You’d better not come in July. My mother (stay) with me then.

9. What time (your plane/ leave) ?

10. Leave the car here. May be the police (not/ notice) it.

III. Give the correct form of the verbs:

1. By the time we reach the home, the rain (stop).

2. This time next week I (lie) on the beach in Spain.

3. In ten years’ time I (work) for a different company.

4. If we don’t get there by 6, Jack (leave).

5. In July they (be married) for ten years.

6. In the year 2500 a lot of people (live) on the moon.

7. When you get to the station, I (wait) for you outside.

8. Don’t worry! The plane (land) in a moment.

9. By the time you come home, I (finish) the decorating.

10. Come round between eight and nine. We (watch) the match on television then.

V. Put each verb in brackets into a suitable tense. All sentences refer to future time.

1. When I (see) you tomorrow, I (tell) you my news.

2. As soon as we (get) there, we (phone) for a taxi.

3. I (go) to the library before I (do) the shopping.

4. We (wait) here until the rain (stop).

5. I (get) some money from the bank when it (open).

6. After you (take) the medicine, you (feel) better.

7. You have to stay until you (finish) your work.

8. I (let) you work the minute I (hear) the results.

9. Before we (paint) the wall, we (have) a cup of tea.

10. We (climb) over the wall as soon as it (get) dark.

1
27 tháng 3 2018

I. Choose the most suitable tense.

1. Why (are you going to buy/ will you buy) a new mountain bike?

2. Don’t phone between 8.00 and 9.00. I’ll study/ I’ll be studying then.

3. Look out! That tree (will fall/ is going to fall)!

4. Let me know as soon as Louise (will get/ gets) here.

5. Great news! Jean and Chris (will come/ are coming) to stay with us.

6. According to this timetable, the bus (is going to arrive/ arrives) at 6.00.

7. I have a feeling that something strange (is going to happen/ is happening) in a minute.

8. The doctor says I (will have/ am going to have) a baby!

9. Can you call me at 7.00, because (I’ll leave/ I’m leaving) tomorrow.

10. If you arrive late at the sale, the best things (will go/ will have gone).

II. Give the correct form of the verbs:

1. I can’t see you on Thursday afternoon. I (visit)am visiting our Birmingham branch.

2. George (not be)won’t be back until six. Can I take a message?

3. What (you/ buy) are you going to buywith the money you won in the lottery?

4. I don’t think you (have) will have any problems at the airport.

5. (You/ take) are you going to take/Are you taking your dog with you to Scotland?

6. Can you answer the phone for me? I (lie down) am going to lie down for a while.

7. All the hotels are full. Where (we/ spend)are we going to spend the night?

8. You’d better not come in July. My mother (stay) will be staying/is staying with me then.

9. What time does your plane leave (your plane/ leave) ?

10. Leave the car here. May be the police (not/ notice) won’t notice it.

I. Fill in the blanks with the correct forms of the phrasal verbs made of the words in the two boxes.Some of them are not suitable. get,make,put,run,stand,talk (verb) up,over,by,along,with,into (prep) 1.He did agree with me, but he was afraid of what the boss would say. I can't believe that he didn't .... me! (stand by) 2.What do you think of Amelia ? I .... her very well. Maybe I would ask her to go to the cinema with me sometimes. 3. Sam isn't serious about anything. How can you .......
Đọc tiếp

I. Fill in the blanks with the correct forms of the phrasal verbs made of the words in the two boxes.Some of them are not suitable.

get,make,put,run,stand,talk (verb)

up,over,by,along,with,into (prep)

1.He did agree with me, but he was afraid of what the boss would say.

I can't believe that he didn't .... me! (stand by)

2.What do you think of Amelia ?

I .... her very well. Maybe I would ask her to go to the cinema with me sometimes.

3. Sam isn't serious about anything. How can you .... him ?

4. I .... Cynthia when I was downtown today. (ran into)

5. Is it true that you and Roger got into a big argument?

Yes, but he called to apologize,and we .... (made up)

II. Supply one correct preposition for each blank.

1. Children,go .... the garden and work ... some of your energythere, not here in the house.

2. We're making the village of Hayslope. Are we on the right road?

P/s : Mọi người check những câu đã làm và các câu còn lại giúp em với. Em cảm ơn!

1
28 tháng 1 2020

2. get along with

3, put up with

3 tháng 3 2018

Điền giới từ

1. Pop music can cheer me...up... whenever i feel bad

2. He has won the first prize...for....singing folk songs

3. He telephoned to invite me..to...... the party

Making question :

1. They spend 2 hours flying to America (2 hours)

=>How long do they spend flying to America?

2. Jane's sister walked to the station to see her friend off (jane's)

=>Who walked to the station to see here friend off?

3. Harry is planting in the garden (in the garden)

=>Where is Harry planting ?

4. He has become wealthy by working very hard for a long time (by working very hard)

=>How has he become healthy?

5. His behavior made me feel embarrassed (embarrased)

=>How did his behavior make you?

6. Her birthday is on the fifth of April (on the fifth of april)

=>When is her birthday?

7. They usually go to school by bike ( by bike

=>How do they usually go to school?

3 tháng 3 2018

Điền giới từ

1. Pop music can cheer me...up... whenever i feel bad

2. He has won the first prize...for....singing folk songs

3. He telephoned to invite me..to...... the party

Making question :

1. They spend 2 hours flying to America (2 hours)

=>How long do they spend flying to America?

2. Jane's sister walked to the station to see her friend off (jane's)

=>Whose sister ​walked to the station to see here friend off?

3. Harry is planting in the garden (in the garden)

=>Where is Harry planting ?

4. He has become wealthy by working very hard for a long time (by working very hard)

=>How has he become healthy for a long time​?

5. His behavior made me feel embarrassed (embarrased)

=>How did his behavior make you feel?

6. Her birthday is on the fifth of April (on the fifth of april)

=>When is her birthday?

7. They usually go to school by bike ( by bike

=>How do they usually go to school?

Help me PAPER RECYCLING A Paper is different from other waste produce because it comes from a sustainable resource: trees. Unlike the minerals and oil used to make plastics and metals, trees are replaceable. Paper is also biodegradable, so it does not pose as much threat to the environment when it is discarded. While 45 out of every 100 tonnes of wood fibre used to make paper in Australia comes from waste paper, the rest comes directly from virgin fibre from forests and plantations. By world...
Đọc tiếp

Help me

PAPER RECYCLING

A Paper is different from other waste produce because it comes from a sustainable resource: trees. Unlike the minerals and oil used to make plastics and metals, trees are replaceable. Paper is also biodegradable, so it does not pose as much threat to the environment when it is discarded. While 45 out of every 100 tonnes of wood fibre used to make paper in Australia comes from waste paper, the rest comes directly from virgin fibre from forests and plantations. By world standards, this is a good performance since the worldwide average is 33 percent waste paper. Governments have encouraged waste paper collection and sorting schemes and at the same time, the paper industry has responded by developing new recycling technologies that have paved the way for even greater utilization of used fibre. As a result, industry’s use of recycled fibres is expected to increase at twice the rate of virgin fibre over the coming years.

B Already, waste paper constitutes 70% of paper used for packaging and advances in the technology required to remove ink from the paper have allowed a higher recycled content in newsprint and writing paper. To achieve the benefits of recycling, the community must also contribute. We need to accept a change in the quality of paper products; for example, stationery may be less white and of a rougher texture. There also needs to support from the community for waste paper collection programs. Not only do we need to make the paper available to collectors but it also needs to be separated into different types and sorted from contaminants such as staples, paperclips, string and other miscellaneous items.

C There are technical limitations to the amount of paper which can be recycled and some paper products cannot be collected for re-use. These include paper in the form of books and permanent records, photographic paper and paper which is badly contaminated. The four most common sources of paper for recycling are factories and retail stores which gather large amounts of packaging material in which goods are delivered, also offices which have unwanted business documents and computer output, paper converters and printers and lastly households which discard newspapers and packaging material. The paper manufacturer pays a price for the paper and may also incur the collection cost.

D Once collected, the paper has to be sorted by hand by people trained to recognise various types of paper. This is necessary because some types of paper can only be made from particular kinds of recycled fibre. The sorted paper then has to be repulped or mixed with water and broken down into its individual fibres. This mixture is called stock and may contain a wide variety of contaminating materials, particularly if it is made from mixed waste paper which has had little sorting. Various machineries are used to remove other materials from the stock. After passing through the repulping process, the fibres from printed waste paper are grey in colour because the printing ink has soaked into the individual fibres. This recycled material can only be used in products where the grey colour does not matter, such as cardboard boxes but if the grey colour is not acceptable, the fibres must be de-inked. This involves adding chemicals such as caustic soda or other alkalis, soaps and detergents, water-hardening agents such as calcium chloride, frothing agents and bleaching agents. Before the recycled fibres can be made into paper they must be refined or treated in such a way that they bond together.

E Most paper products must contain some virgin fibre as well as recycled fibres and unlike glass, paper cannot be recycled indefinitely. Most paper is down-cycled which means that a product made from recycled paper is of an inferior quality to the original paper. Recycling paper is beneficial in that it saves some of the energy, labour and capital that go into producing virgin pulp. However, recycling requires the use of fossil fuel, a non-renewable energy source, to collect the waste paper from the community and to process it to produce new paper. And the recycling process still creates emissions which require treatment before they can be disposed of safely. Nevertheless, paper recycling is an important economical and environmental practice but one which must be carried out in a rational and viable manner for it to be useful to both industry and the community.

i. Process of paper recycling

ii. Less threat of waste paper to the environment

iii. Collection of paper for recycling

iv. Sources of paper for recycling

v. Bad sides of paper recycling

vi. Contribution of community to recycling paper

Your answer:

1. Paragraph A .......................

2. Paragraph B .......................

3. Paragraph C .......................

4. Paragraph D .......................

5. Paragraph E .......................

1
20 tháng 10 2018

Help me

PAPER RECYCLING

A Paper is different from other waste produce because it comes from a sustainable resource: trees. Unlike the minerals and oil used to make plastics and metals, trees are replaceable. Paper is also biodegradable, so it does not pose as much threat to the environment when it is discarded. While 45 out of every 100 tonnes of wood fibre used to make paper in Australia comes from waste paper, the rest comes directly from virgin fibre from forests and plantations. By world standards, this is a good performance since the worldwide average is 33 percent waste paper. Governments have encouraged waste paper collection and sorting schemes and at the same time, the paper industry has responded by developing new recycling technologies that have paved the way for even greater utilization of used fibre. As a result, industry’s use of recycled fibres is expected to increase at twice the rate of virgin fibre over the coming years.

B Already, waste paper constitutes 70% of paper used for packaging and advances in the technology required to remove ink from the paper have allowed a higher recycled content in newsprint and writing paper. To achieve the benefits of recycling, the community must also contribute. We need to accept a change in the quality of paper products; for example, stationery may be less white and of a rougher texture. There also needs to support from the community for waste paper collection programs. Not only do we need to make the paper available to collectors but it also needs to be separated into different types and sorted from contaminants such as staples, paperclips, string and other miscellaneous items.

C There are technical limitations to the amount of paper which can be recycled and some paper products cannot be collected for re-use. These include paper in the form of books and permanent records, photographic paper and paper which is badly contaminated. The four most common sources of paper for recycling are factories and retail stores which gather large amounts of packaging material in which goods are delivered, also offices which have unwanted business documents and computer output, paper converters and printers and lastly households which discard newspapers and packaging material. The paper manufacturer pays a price for the paper and may also incur the collection cost.

D Once collected, the paper has to be sorted by hand by people trained to recognise various types of paper. This is necessary because some types of paper can only be made from particular kinds of recycled fibre. The sorted paper then has to be repulped or mixed with water and broken down into its individual fibres. This mixture is called stock and may contain a wide variety of contaminating materials, particularly if it is made from mixed waste paper which has had little sorting. Various machineries are used to remove other materials from the stock. After passing through the repulping process, the fibres from printed waste paper are grey in colour because the printing ink has soaked into the individual fibres. This recycled material can only be used in products where the grey colour does not matter, such as cardboard boxes but if the grey colour is not acceptable, the fibres must be de-inked. This involves adding chemicals such as caustic soda or other alkalis, soaps and detergents, water-hardening agents such as calcium chloride, frothing agents and bleaching agents. Before the recycled fibres can be made into paper they must be refined or treated in such a way that they bond together.

E Most paper products must contain some virgin fibre as well as recycled fibres and unlike glass, paper cannot be recycled indefinitely. Most paper is down-cycled which means that a product made from recycled paper is of an inferior quality to the original paper. Recycling paper is beneficial in that it saves some of the energy, labour and capital that go into producing virgin pulp. However, recycling requires the use of fossil fuel, a non-renewable energy source, to collect the waste paper from the community and to process it to produce new paper. And the recycling process still creates emissions which require treatment before they can be disposed of safely. Nevertheless, paper recycling is an important economical and environmental practice but one which must be carried out in a rational and viable manner for it to be useful to both industry and the community.

i. Process of paper recycling

ii. Less threat of waste paper to the environment

iii. Collection of paper for recycling

iv. Sources of paper for recycling

v. Bad sides of paper recycling

vi. Contribution of community to recycling paper

Your answer:

1. Paragraph A ...........iii. Collection of paper for recycling............

2. Paragraph B ..........vi. Contribution of community to recycling paper.............

3. Paragraph C ...........iv. Sources of paper for recycling............

4. Paragraph D ............i. Process of paper recycling...........

5. Paragraph E ...........v. Bad sides of paper recycling............