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16 tháng 2 2020

Perilous pollutants may contain various types of impurities including harmful chemicals, dissolved gases, suspended matters, dissolved minerals, and even microbes. All the contaminants reduce the level of dissolved oxygen in the water and affecting the lives of animals and human beings to a great extent. Dissolved oxygen is the oxygen present in water required by the aqua system to continue the lives of plants and animals. However biochemical oxygen is the demanded oxygen by the aerobic micro-organisms to oxidize organic matters of wastes. Water pollution is caused by two means, one is natural water pollution ( due to the leaching of rocks, decay of organic matters, decay of dead matters, silting, soil erosion, etc ) and another one is man-made water pollution ( due to the deforestation, set up of industries near large water bodies, high level emission of industrial wastes, domes sewage, synthe chemicals, radio-active wastes, fertilizers, insecides, pesides etc )

=> Translate:

Các chất gây ô nhiễm nguy hiểm có thể chứa nhiều loại tạp chất bao gồm các hóa chất độc hại, khí hoà tan, các chất lơ lửng, các khoáng chất hòa tan, và thậm chí là các vi khuẩn. Tất cả các chất gây ô nhiễm làm giảm mức oxy hoà tan trong nước và ảnh hưởng đến cuộc sống của động vật và con người ở mức độ lớn. Oxy hòa tan là oxy hiện diện trong nước mà hệ thống thủy sinh yêu cầu để tiếp tục cuộc sống của thực vật và động vật. Tuy nhiên oxy sinh học là loại oxy mà các vi sinh vật hiếu khí cần để oxy hóa các chất hữu cơ của chất thải. Ô nhiễm nguồn nước gây ra bởi hai phương tiện, một là ô nhiễm nguồn nước tự nhiên ( do sự rửa trôi của đá, sự phân hủy của các chất hữu cơ, sự phân hủy của các chất chết, xối xối, xói mòn đất,… ) và một là ô nhiễm nguồn nước do con người gây ra ( do nạn phá rừng, khai thác các ngành công nghiệp gần các vùng nước lớn, phát thải cao các chất thải công nghiệp, nước thải sinh hoạt, hóa chất tổng hợp, chất thải phóng xạ, phân bón, thuốc trừ sâu, thuốc trừ sâu,…)

k mink nha!   ^ _ ^

16 tháng 2 2020

On a global perspective in our modern world, pollution has become a nightmare for every country all around the world. Well, firstly when mention the phrase it is important to re-define it, then " What is actually pollution". Let's make it basic by imagine a river full of trash, the the biodiversity under the water won't remain long. This is the most classic type of pollution, water pollution. Water is an essential source of energy, life, acting as an major role on the economic, without water, life won't exist. However, human us make it over use for too many purpose, we accidentially destroy our natural resource through industrilization activities, waste chemicants, these factors gaining and contribute to the pollution density on parular area that water current flow through. Now that we know it significant setting, it is our responsibility standing up against for our rights as humanality, water is the only lasting resource on Earth to maintain life, our permission is to reserve it and keep it use for the after generations

Sincerly bro : )) vinschool

16 tháng 2 2020

Change the following sentences into passive voice 

1. Did they built the theatre 2 years ago?

=> Was the theatre built 2 years ago?

2. A French architect designed the palace. 

=> The palace was designed by a French architect

17 tháng 2 2020

1. Was the theatre built 2 years ago?

2. The palace was designed by a French architect

[ hải vân]

# chúc bạn hok tốt#

16 tháng 2 2020

1. The children eating fish.

2. He listening to the radio.

3. I drinking beer.

16 tháng 2 2020

V,

1won't eat

2won't listen

3won't drink

4won't rain

5won't ask

6won't test

VI,

1when will Megan be famous?(câu này mk ko chắc)

2Will they visit their grandparents?

3Will we meet Rihanna?

4will i earn lots of money?

5Who will drive us into town?

6will you meet that boy?

Sai câu nào mn thông cảm vì mk ko chuyên anh nha!

16 tháng 2 2020

III,

1you should work more if you want to earn more money

2which dress do you think i should buy?

3which magazines i should get?

4i think you should buy the local magazines

5what do you think i should do before i buy a car?

IV,

1will win

2will understand

3will get

4will take

5will do

6will go

Có gì sai sót mong mn thông cảm vì mk ko chuyên anh ạ!

18 tháng 2 2020

Trl

Bạn tham khảo của bạn Ngọc Bích nha

Bạn ấy làm đúng rồi đó :3

Học tốt nhé

I. Choose the word which has a different sound in the part underlined.1. a. sorry                    b. speak                       c. soft                          d. shoe2. a. lesson                   b. short                        c. wash                                    d. finish3. a. possible                b. sure                          c. stress                        d. nice4. a. cinema                 b. sugar                        c. mansion                   d. tissue5. a....
Đọc tiếp

I. Choose the word which has a different sound in the part underlined.

1. a. sorry                    b. speak                       c. soft                          d. shoe

2. a. lesson                   b. short                        c. wash                                    d. finish

3. a. possible                b. sure                          c. stress                        d. nice

4. a. cinema                 b. sugar                        c. mansion                   d. tissue

5. a. police                   b. sentence                  c. mission                    d. circus

6. a. civilize                 b. shop                         c. sure                          d. chef

7. a. soon                     b. crease                      c. insure                       d. sister

8. a. ship                      b. cynic                        c. national                    d. cash

9. a. pressure               b. price                                    c. piece                        d. bus

10. a. fish                    b. mash                        c. cyclist                      d. wash

11. a. sip                      b. insurance                 c. star                           d. sand

12. a. cypress               b. she                           c. shoe                         d. ash

13. a. Sunday              b. sailing                      c. sensible                    d. mansion

14. a. rush                    b. see                           c. push                         d. shack

15. a. tension               b. swim                        c. yes                           d. six

16. a. cession               b. sleep                        c. say                           d. exciting

17. a. sheet                  b. sad                           c. show                        d. shut

18. a. expensive           b. instead                     c. outside                     d. mission

19. a. sing                    b. special                     c. social                       d. artificial

20. a. spend                 b. city                          c. bicycle                     d. nation

21. a. musician            b. song                         c. physician                 d. ancient

22. a. intention                        b. recycle                     c. center                       d. century

23. a. efficient             b. conscience               c. audacious                d. south

24. a. ambitious           b. cigar                                    c. circle                        d. citizen

25. a. ocean                 b. story                        c. conscious                 d. ensure

II. Fill in the blank with should or shouldn,t

  1. You ……… be so selfish.
  2. I think you ……….. smoke so much.
  3. You ……….. do exercises more.
  4. You are tired. I think you ……….. relax.
  5. You are overweight. You ……….. go on a diet.
  6. You …………. park here. It is not allowed.
  7. What  ……….. I cook for breakfast this morning?
  8. You ………. wear a raincoat. It is raining outside.
  9. You ……….. smoke. It is bad for you.

We ……….. arrive at the airport two hours before the flight

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16 tháng 2 2020

bài 1 : lên google ghi ra nghe xem khác ở chỗ nào

bài 2 ; trên google dịch là có thể điền should hay shouldn't

-------HẾT-------

I. Choose the word which has a different sound in the part underlined.

1. a. sorry                    b. speak                       c. soft                          d. shoe

2. a. lesson                   b. short                        c. wash                                    d. finish

3. a. possible                b. sure                          c. stress                        d. nice

4. a. cinema                 b. sugar                        c. mansion                   d. tissue

5. a. police                   b. sentence                  c. mission                    d. circus

    nhiều lắm lm ko hết :_3 

17 tháng 2 2020

IV. Fill in the blank with one of the following words: although, and, because, but, or, since, so, unless, until, when.

1. Things were different when I was young.

2. I do it because I it.

3. Let  us wait here until the rain stops.

4. You can not be a lawyer but you have a law degree.

5. She has not called so she left last week.

6. I saw him leaving an hour unless two ago.

7. This is an expensive but very useful book.

8. We were getting tired although we stopped for a rest.

9. He was angry because he heard what happened.

10. Walk quickly or you will be late.

11. He had to retire because of ill health.

12. I heard a noise and I turned the light on.

13. would you a coffee or tea ?

Bài 1: Hoàn thành các câu bằng cách sử dụng các động từ sau ở dạng chính xác:(buy – catch - cost - fall - hurt - sell - spend – teach - throw -·write)1. Mozart …wrote….. more than 600 pieces of music.2 'How did you learn to drive?' 'My father . ................. me.'3 We couldn't afford to keep our car, so we …………… .. it.4 Dave ....................................... down the stairs this morning and ... . ............ ................ his leg.5 joe...
Đọc tiếp

Bài 1: Hoàn thành các câu bằng cách sử dụng các động từ sau ở dạng chính xác:

(buy – catch - cost - fall - hurt - sell - spend – teach - throw -·write)

1. Mozart …wrote….. more than 600 pieces of music.

2 'How did you learn to drive?' 'My father . ................. me.'

3 We couldn't afford to keep our car, so we …………… .. it.

4 Dave ....................................... down the stairs this morning and ... . ............ ................ his leg.

5 joe ....................................... the ball to Sue, who .. ..... .. .. .. .. ............... it.

 6 Ann .......... ..... a lot of money yesterday. She . ... ........... a dress which ........... ..... .. ..... £100.

Bài 2: Hoàn thành các câu. Đặt động từ vào đúng dạng.

1. lt was warm, so I ………. off my coat. (take)

2. The film wasn't very good. I .……….. it much. (enjoy)

3. I knew Sarah was busy, so I ........................ ....................... her. (disturb)

4. We were very tired, so we . ...................... ............... the party early. (leave)

5. The bed was very uncomfortable. I .................................................. well. (sleep)

6. The window was open and a bird .................. ........... ..... . into the room. (fly)

7. The hotel wasn't very expensive. lt .. ..... .... . ............. much to stay there. (cost)

8. I was in a hurry, so I..... .... ... .. ......... time to phone you. (have)

9 lt was hard carrying the bags. They ................................ .. ................ very heavy. (be)

2
18 tháng 2 2020

Bài 1:

2. taught

3. sold

4. fell - hurt

5. threw - catched

6. spent - bought - cost

Bài 2:

1. took

2. didn't enjoy

3. didn't disturb

4. left

5. didn't sleep

6. flew

7. didn't cost

8. didn't have

9. were

18 tháng 2 2020

Trl

Bạn tham khảo của bạn Versona nha

Bạn ấy làm đúng rồi đó

Học tốt

V. Rewrite the sentences, using a suitable conjunction.1. We know him. We know his friends.2. The coat was soft. The coat was warm.3. It is stupid to do that. It is quite unnecessary.4. I wanted to go. He wanted to say.5. I will come and see you. I leave for Moscow.6. He will tell you. You get home.7. I can,t express my opinion. I know the fact.8. We started very early. We didn,t want to miss the train.9. He will stay here. You come.10. He tried hard. He wasn,t successful.11. Your arguments are...
Đọc tiếp

V. Rewrite the sentences, using a suitable conjunction.

1. We know him. We know his friends.

2. The coat was soft. The coat was warm.

3. It is stupid to do that. It is quite unnecessary.

4. I wanted to go. He wanted to say.

5. I will come and see you. I leave for Moscow.

6. He will tell you. You get home.

7. I can,t express my opinion. I know the fact.

8. We started very early. We didn,t want to miss the train.

9. He will stay here. You come.

10. He tried hard. He wasn,t successful.

11. Your arguments are strong. They don,t convince me.

12. You can go there by bus. You can go there by train.

13. I was feeling tired. I went to bed when I got home.

14. I work in a restaurant. She works in the same restaurant.

15. He worked late last night. He might be free to go away tomorrow.

16. The room is small. We can,t all get in.

17. You had left earlier. You would have caught the train.

18. It has been raining hard all day. I can,t go out.

19. It rained hard. We played the football match.

20. You may go. He won,t forget you.

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1. is coming / has

2. drives

3. buy

4. go

5. there is john / is reading / goes

16 tháng 2 2020

1. is coming / has

2. drives

3. buy

4. go

5. is / is reading  /  goes

Bài 1: Hoàn thành các câu bằng cách sử dụng các động từ sau ở dạng chính xác:(buy – catch - cost - fall - hurt - sell - spend – teach - throw -·write)1. Mozart …wrote….. more than 600 pieces of music.2 'How did you learn to drive?' 'My father . ................. me.'3 We couldn't afford to keep our car, so we …………… .. it.4 Dave ....................................... down the stairs this morning and ... . ............ ................ his leg.5 joe...
Đọc tiếp

Bài 1: Hoàn thành các câu bằng cách sử dụng các động từ sau ở dạng chính xác:

(buy – catch - cost - fall - hurt - sell - spend – teach - throw -·write)

1. Mozart …wrote….. more than 600 pieces of music.

2 'How did you learn to drive?' 'My father . ................. me.'

3 We couldn't afford to keep our car, so we …………… .. it.

4 Dave ....................................... down the stairs this morning and ... . ............ ................ his leg.

5 joe ....................................... the ball to Sue, who .. ..... .. .. .. .. ............... it.

 6 Ann .......... ..... a lot of money yesterday. She . ... ........... a dress which ........... ..... .. ..... £100.

Bài 2: Hoàn thành các câu. Đặt động từ vào đúng dạng.

1. lt was warm, so I ………. off my coat. (take)

2. The film wasn't very good. I .……….. it much. (enjoy)

3. I knew Sarah was busy, so I ........................ ....................... her. (disturb)

4. We were very tired, so we . ...................... ............... the party early. (leave)

5. The bed was very uncomfortable. I .................................................. well. (sleep)

6. The window was open and a bird .................. ........... ..... . into the room. (fly)

7. The hotel wasn't very expensive. lt .. ..... .... . ............. much to stay there. (cost)

8. I was in a hurry, so I..... .... ... .. ......... time to phone you. (have)

9 lt was hard carrying the bags. They ................................ .. ................ very heavy. (be)

Bài 3: Chọn đáp án đúng

1. They __________ the bus yesterday.

A. don’t catch           B. weren’t catch       C. didn’t catch         D. not catch

2. My sister  __________ home late last night.

A. comes                    B. come                      C. came                     D. was come

3. My father __________  tired when I __________ home.

A. was – got              B. is – get                   C. was – getted          D. were – got

4. What __________ you __________ two days ago?

A. do – do                  B. did – did                C. do – did                 D. did – do

5. Where __________ your family __________ on the summer holiday last year?

A. do – go                  B. does – go               C. did – go                 D. did – went

6. Everyone ………… your sister’s wedding party last night.

A. enjoys              B. enjoyed                      C. enjoying           D. to enjoy

7. She ………… at home yesterday morning.

A. didn’t stay       B. didn’t stayed             C. doesn’t stay     D. stays

8. He ……. the bus quickly when the lights were red.

A. stopped           B. stop                           C. stopping                    D. to stop

9. We ……… late.

A. aren’t not                  B. were                          C. did                             D. didn’t

10. He …… me a lot of thing last week.

A. bring                B. bring s                       C. doesn’t bring   D. brought

11. He is a teacher of English. He ……… us English last year.

A. taught              B. teached                      C. teaches             D. to teach

12. He ………  a lot of money on shopping some days ago.

A. spend               B. is spending                C. spent                D. spends

13. Mr Long ……….. his car to work this morning.

A. drive                B. drives                        C. drove               D. to drive

14. What did he ……… to you two days ago?

A. speak               B. spoke                        C. speaks             D. speaking

15. He ……. TV so late lastnight.

A. didn’t watched          B. watched                     C. watches            D.doesn’t watch

16. ………. they in the bank? No, they weren’t.

A. Were                B. Are                            C. Did                  D. Didn’t

17. We …… the suitcases. They were very heavy.

A. didn’t carry     B. carries                       C. carry                D. carrying

18. She ……….. a lot of mistakes in the test.

A.  is making        B. make                         C. making             D. made

19. They …….. the room last year.

A. decorated                  B. decorate                     C. are decorated   D. is decorating

20. ………. he pass the examination? No, he ……..

A. Did/ didn’t       B. Did/ doesn’t              C. Does/ don’t      D. Is/ didn’t

Bài 4. Write the past simple form of the following verbs: Viết dạng quá khứ của các động từ sau. ( Các em học thuộc những động từ bất quy tắc này trong 360 động từ bất quy tắc trước khi làm bài này )

1. help       ………..       2. Visit  …………..        3. Arrive     ………..     

4. Remember ………..     5. return    ………..      6. Rent   …….........      

7. Receive   ………..      8. Have  ……………..   9. be        …………       

10. Go  …………..        11. Buy      …………     12. Take   …………..

13. see    …………        14. Think  ………..        15. Talk     …………    

16. Stop  …………….   17. look  …………        18. Move ………..        

19. Watch ………….     20. Learn  …………..    21. play …………        

22. Live …………                   23. Listen …………       24. Study …………..

25. clean ………..           26. Wear ………..                    27. Put    ………….      

28. Eat     ………….      29. give  ……….            30. Make  ……….

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