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10 tháng 4 2022

26. owes               

27. habitable

28. promoted

29. peers 

30. dominant 

31. facilitators        

32. reputation

33. astronaut 

34. blabbermouth

35. flexibility     

10 tháng 4 2022

em cảm mơn ạ

Question 1: Supply the correct forms of the verbs in brackets.1. It is crucial that Dido (stop) using Quang Ha.2. I will ring the bell one more. if he (not answer),I think he must(go) out3. I am sorry about the noise last night. We (have) a party.4. The man who (rescue) had been in the sea for ten hours.5. A great deal of time (be) spent for his exercise.6. We want (pay) better wages.7. People always (blame) their circumstances for what they are.8. You (stop) by a policeman if you (try) to...
Đọc tiếp

Question 1: Supply the correct forms of the verbs in brackets.

1. It is crucial that Dido (stop) using Quang Ha.

2. I will ring the bell one more. if he (not answer),I think he must(go) out

3. I am sorry about the noise last night. We (have) a party.

4. The man who (rescue) had been in the sea for ten hours.

5. A great deal of time (be) spent for his exercise.

6. We want (pay) better wages.

7. People always (blame) their circumstances for what they are.

8. You (stop) by a policeman if you (try) to cross the road now.

Question 2: Use the correct form of the words in brackets to complete the following passage.

The families in our streets are slowly being driven mad by the .............. (1- refuse) of the inhabitants of No.13 to have any form of ............ (2-communiate) with them. The trouble started over what is known as noise .............. (3 - pollute). Every evening, the ........... (4- think) neighbours used to turn up the volume on the TV so loud that no one in the (5 - neighbour) was able to hear anything else. Not knowing what ............ (6 - act) to take, local residents held a meeting to see if anyone had any ............ (7 - suggest) as to how to deal with the problem. A decision was made to send a number of people to talk to the family in No. 13 and ask them .......

............. (8- polite) to turn their music down after six in the evening. Unfortunately, the visit did not turn out to be ............ (9 - succeed), as the inhabitants of No.13 refused to talk to them. So on the .............. (10 - advise) of local police, the matter is now in the hands of the court.

Question 3: Fill in each numbered blank with a suitable word

When you hear the word "bank", what do you think of ? A ......... (1) to put money? The land on the edge of a river? To depend on something or someone ? If you choose any of .....

............ (2) things, you're right. Why ? because words often have ............. (3) than one meaning. The tricky part is figuring out ........... (4) meaning is appropriate.

Choosing the correct meaning of a word depends on ............. (5) things. First, it depends on the words and ............ (6) surrounding your particular word. The other words and sentences give you context clues. ................. (7), the meaning depends on how the word is ............ (8) in the sentence. Is it a noun, a verb, ................ (9) adjective or part of a phrase? Knowing the word's part of speech will .............. (10) you discover the word's precise meaning.

Question 4: Read the text then choose the correct answer

Computing is now at the same stage as printing was when the first printing presses were used. Before printing presses were invented, only rich people like kings and dukes could afford to buy books. Often these people were unable to read and hadn't enough time to learn. In any case, the books were so big that it was difficult for anyone to relax with a book as we do today. They wanted books because they were expensive and there was something magical about them. Only a few people were able to write, and it took an extremely long time to write a book. Monks and other people who could write said ordinary people could not learn to read.

The position with computers in very similar today. A few years ago, computers were very large and expensive. Business managers and rich people ordered them but they didn’t know how to use them. In many countries, however, the situation has now completely changed. Lots of people not only own microcomputers but also know how to use them.

1. What happened before printing presses were invented ?

a. Books were so big that people didn’t want to buy them.

b. Only intelligent and rich people could read books.

c. Only kings and dukes had enough money to buy books.

d. All rich people bought books.

2. Why were books wanted before printing presses were invented ?

a. to show that the people who owned the books were rich and intelligent.

b. to show that the people who owned the books could write.

c. Because books were dear and magical.

d. Because books showed that the person who owned them were magical people.

3. What is the common feature of a book and a computer?

a. They were only for intelligent people.

b. They were too expensive to buy.

c. They were large and expensive at first.

d. Only people who could use them buy them.

4. What situation has throughly changed nowadays?

a. A lot of people are eager to buy computers

b. A lot of computers are sold

c. Even children can use a computer

d. A person who buys a computer knows how to use it.

Question 5: a/ Each line in the following passage has a spare word; Underline that word and write it in the blanks given.

BICYCLES

The bicycle is a cheap and clean way to for travel . The first 0/ .......for...........
bicycle was made in about one hundred and fifty years ago. At 1/ .......................
first, bicycles were much expensive. Only rich people could 2/ .......................
buy one. These early time bicycles looked very different from 3/ .......................
the ones we have them today. Later, when bicycles became 4/.......................
cheaper, many lot people bought one. People started riding 5/ .......................
bicycles to work and in their with free time. Today, people use 6/ .......................
cars more than bicycles; cars are much more faster and you 7/ .......................
don’t get wet when it start rains! But some people still prefer to 8/ .......................
cycle to work . They say that there have are too many cars in 9/ .......................
town centers and you can't able find anywhere to park! 10/ .....................

b/ Fill in the blanks with a suitable prepositions.

1. George fell .............the bladder while he was painting the ceiling.

2. We stopped everyone .................leaving the building.

3. Admision .................university depends .....................examination results.

4. Don`t use that dictionary. It is .............date. Find one that is ...................date.

Question 6: Do as directed

1. My friend had excellent ideas. He did a good job,too.

(join into one sentence, using not only.....but...as well)

2. His explanation is not clear. The examples he gives are not clear.

(join into one sentence, using : neither...............nor)

3. People say that the price of gold is going up. (change into passive voice.)

4. He asked me: "When will you give this book back to me?" (change into Reported speech)

5. Seldom did people travel far from home years ago. (Use the ordinary word order)

6. He was given a gift. So were you. (Join into one sentence, using "as well")

7. You may be intelligent, but you should be careful about this (start with "No matter........"

8. He made a great discovery. He was very proud of it. (Combine into one sentence)

9. Lan found it difficult to accept the situation. (rewrite with: difficulty)

10.The farmers had applied new technology in their fields. The output of rice was raised.

(Combine with: Thanks to ...........which............)

3
21 tháng 4 2020

hoi cham

21 tháng 4 2020

cac bn tra loi dc cau nao thi ghi cau day

Question 1: Supply the correct forms of the verbs in brackets.1. It is crucial that Dido (stop) using Quang Ha.2. I will ring the bell one more. if he (not answer),I think he must(go) out3. I am sorry about the noise last night. We (have) a party.4. The man who (rescue) had been in the sea for ten hours.5. A great deal of time (be) spent for his exercise.6. We want (pay) better wages.7. People always (blame) their circumstances for what they are.8. You (stop) by a policeman if you (try) to...
Đọc tiếp

Question 1: Supply the correct forms of the verbs in brackets.

1. It is crucial that Dido (stop) using Quang Ha.

2. I will ring the bell one more. if he (not answer),I think he must(go) out

3. I am sorry about the noise last night. We (have) a party.

4. The man who (rescue) had been in the sea for ten hours.

5. A great deal of time (be) spent for his exercise.

6. We want (pay) better wages.

7. People always (blame) their circumstances for what they are.

8. You (stop) by a policeman if you (try) to cross the road now.

Question 2: Use the correct form of the words in brackets to complete the following passage.

The families in our streets are slowly being driven mad by the .............. (1- refuse) of the inhabitants of No.13 to have any form of ............ (2-communiate) with them. The trouble started over what is known as noise .............. (3 - pollute). Every evening, the ........... (4- think) neighbours used to turn up the volume on the TV so loud that no one in the (5 - neighbour) was able to hear anything else. Not knowing what ............ (6 - act) to take, local residents held a meeting to see if anyone had any ............ (7 - suggest) as to how to deal with the problem. A decision was made to send a number of people to talk to the family in No. 13 and ask them .......

............. (8- polite) to turn their music down after six in the evening. Unfortunately, the visit did not turn out to be ............ (9 - succeed), as the inhabitants of No.13 refused to talk to them. So on the .............. (10 - advise) of local police, the matter is now in the hands of the court.

Question 3: Fill in each numbered blank with a suitable word

When you hear the word "bank", what do you think of ? A ......... (1) to put money? The land on the edge of a river? To depend on something or someone ? If you choose any of .....

............ (2) things, you're right. Why ? because words often have ............. (3) than one meaning. The tricky part is figuring out ........... (4) meaning is appropriate.

Choosing the correct meaning of a word depends on ............. (5) things. First, it depends on the words and ............ (6) surrounding your particular word. The other words and sentences give you context clues. ................. (7), the meaning depends on how the word is ............ (8) in the sentence. Is it a noun, a verb, ................ (9) adjective or part of a phrase? Knowing the word's part of speech will .............. (10) you discover the word's precise meaning.

Question 4: Read the text then choose the correct answer

Computing is now at the same stage as printing was when the first printing presses were used. Before printing presses were invented, only rich people like kings and dukes could afford to buy books. Often these people were unable to read and hadn't enough time to learn. In any case, the books were so big that it was difficult for anyone to relax with a book as we do today. They wanted books because they were expensive and there was something magical about them. Only a few people were able to write, and it took an extremely long time to write a book. Monks and other people who could write said ordinary people could not learn to read.

The position with computers in very similar today. A few years ago, computers were very large and expensive. Business managers and rich people ordered them but they didn’t know how to use them. In many countries, however, the situation has now completely changed. Lots of people not only own microcomputers but also know how to use them.

1. What happened before printing presses were invented ?

a. Books were so big that people didn’t want to buy them.

b. Only intelligent and rich people could read books.

c. Only kings and dukes had enough money to buy books.

d. All rich people bought books.

2. Why were books wanted before printing presses were invented ?

a. to show that the people who owned the books were rich and intelligent.

b. to show that the people who owned the books could write.

c. Because books were dear and magical.

d. Because books showed that the person who owned them were magical people.

3. What is the common feature of a book and a computer?

a. They were only for intelligent people.

b. They were too expensive to buy.

c. They were large and expensive at first.

d. Only people who could use them buy them.

4. What situation has throughly changed nowadays?

a. A lot of people are eager to buy computers

b. A lot of computers are sold

c. Even children can use a computer

d. A person who buys a computer knows how to use it.

Question 5: a/ Each line in the following passage has a spare word; Underline that word and write it in the blanks given.

BICYCLES

The bicycle is a cheap and clean way to for travel . The first 0/ .......for...........
bicycle was made in about one hundred and fifty years ago. At 1/ .......................
first, bicycles were much expensive. Only rich people could 2/ .......................
buy one. These early time bicycles looked very different from 3/ .......................
the ones we have them today. Later, when bicycles became 4/.......................
cheaper, many lot people bought one. People started riding 5/ .......................
bicycles to work and in their with free time. Today, people use 6/ .......................
cars more than bicycles; cars are much more faster and you 7/ .......................
don’t get wet when it start rains! But some people still prefer to 8/ .......................
cycle to work . They say that there have are too many cars in 9/ .......................
town centers and you can't able find anywhere to park! 10/ .....................

b/ Fill in the blanks with a suitable prepositions.

1. George fell .............the bladder while he was painting the ceiling.

2. We stopped everyone .................leaving the building.

3. Admision .................university depends .....................examination results.

4. Don`t use that dictionary. It is .............date. Find one that is ...................date.

Question 6: Do as directed

1. My friend had excellent ideas. He did a good job,too.

(join into one sentence, using not only.....but...as well)

2. His explanation is not clear. The examples he gives are not clear.

(join into one sentence, using : neither...............nor)

3. People say that the price of gold is going up. (change into passive voice.)

4. He asked me: "When will you give this book back to me?" (change into Reported speech)

5. Seldom did people travel far from home years ago. (Use the ordinary word order)

6. He was given a gift. So were you. (Join into one sentence, using "as well")

7. You may be intelligent, but you should be careful about this (start with "No matter........"

8. He made a great discovery. He was very proud of it. (Combine into one sentence)

9. Lan found it difficult to accept the situation. (rewrite with: difficulty)

10.The farmers had applied new technology in their fields. The output of rice was raised.

(Combine with: Thanks to ...........which............)

1
21 tháng 2 2024

Question 1: Supply the correct forms of the verbs in brackets.
1. It is crucial that Dido stops using Quang Ha
2. I will ring the bell one more time. If he doesn't answer, I think he must have gone out
3. I am sorry about the noise last night. We were having a party
4. The man who was rescued had been in the sea for ten hours
5. A great deal of time is being spent on his exercis
6. We want to be paid better wages
7. People always blame their circumstances for what they are
8. You will be stopped by a policeman if you try to cross the road now

Question 2: Use the correct form of the words in brackets to complete the following passage.
1. refusal    2. communication    3. pollution    4. thoughtless    5. neighborhood 
6. action       7. suggestions       8. politely      9. successful    10. advice 

Question 3: Fill in each numbered blank with a suitable word
1. place         2. these         3. more       4. which     5. several 
6. phrases     7. Second      8. used       9. an          10. help 

Question 4: Read the text then choose the correct answer
1B     2C     3C      4D

Question 5: a/ Each line in the following passage has a spare word; Underline that word and write it in the blanks given.
0. for       1. for         2. much      3. time      4. today    5. lot
6. with     7. more     8. it            9. have      10. able
b/ Fill in the blanks with a suitable prepositions
1. George fell off the ladder while he was painting the ceiling
2. We stopped everyone from leaving the building
3. Admission to university depends on examination results
4. Don't use that dictionary. It is out of date. Find one that is up to date

Question 6: Do as directed
1. Not only did my friend have excellent ideas, but he did a good job as well
2. Neither his explanation nor the examples he gives are clear
3. It is said that the price of gold is going up
4. He asked me when I would give that book back to him
5. Seldom years ago did people travel far from home
6. He was given a gift, and you were as well
7. No matter how intelligent you may be, you should be careful about this
8. He made a great discovery and was very proud of it
9. Lan found difficulty in accepting the situation
10. Thanks to the new technology applied in their fields, the farmers raised the output of rice

9 tháng 9 2018

FILL IN THE NUMBERED BLANK IN THE PASSAGE WITH ONE SUITABLE WORD FROM THE BOX.(WHY)

Heartmoreimprovewritingspeakerslistening

English is one of the most popular languages in the world.It comes second in the number of (1)speaker after Chinese .In Vietnam,more and (2)more people studying English.However,(3)heart  every one knows to learn English effectively.The best to(4)improve the four skills;speaking,listening,reading and(5)writing is to practise regularly.

9 tháng 9 2018

)

FILL IN THE NUMBERED BLANK IN THE PASSAGE WITH ONE SUITABLE WORD FROM THE BOX.(WHY)

Heartmoreimprovewritingspeakerslistening

English is one of the most popular languages in the world.It comes second in the number of (1)speaker after Chinese .In Vietnam,more and (2)more people studying English.However,(3)heart  every one knows to learn English effectively.The best to(4)improve the four skills;speaking,listening,reading and(5)writing is to practise regularly.

DỊCH: Interviewer: We have invited some students from Oak Tree School in Happy Valley to this Beyond 2030 forum, and they are going to share with us their vision of the future. Would you like to go first, Phong? Phong: I believe the biggest change will take place within the school system. Apart from at school, we will also be learning from places which will give us real-life knowledge and experience, such as at a railway station, in a company, or on a farm.Mai: I agree. This real-life...
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DỊCH:

 

Interviewer: We have invited some students from Oak Tree School in Happy Valley to this Beyond 2030 forum, and they are going to share with us their vision of the future. Would you like to go first, Phong? 

Phong: I believe the biggest change will take place within the school system. Apart from at school, we will also be learning from places which will give us real-life knowledge and experience, such as at a railway station, in a company, or on a farm.

Mai: I agree. This real-life application of learning will give us a sense of participation, a feeling that we are part of the process.

Interviewer: And what about the role of teachers? 

Phong: Ah, they will be more like facilitators, rather than information providers. 

Interviewer: Fascinating. How else do you see the future, Nguyen?

Nguyen: Well, I think the role of fathers will drastically change.

Interviewer: Oh yes? In what way?

Nguyen: The modern father will not necessarily be the breadwinner of the family. He may be externally employed or he may stay at home to take care of his children. 

Interviewer: And do the housework?

Nguyen:  Yes. It’s work, paid or not, isn’t it? 

Mai: Absolutely. The benefi t will be that children will see their fathers more often and have a closer relationship with them. I don’t see much of my dad, but I love every moment I spend with him. 

Interviewer: Well, we are certainly covering some interesting topics …

6

Người phỏng vấn: Chúng tôi đã mời vài bạn học sinh đến từ trường Cây Sồi ở Thung lũng Hạnh Phúc đến tham gia diễn đàn Beyond 2030 và họ sẽ chia sẻ với chúng ta tầm nhìn của các em về tương lai. Em sẽ nói đầu tiên nhé, Phong?

Phong: Em tin rằng sự thay đổi lớn nhất sẽ diễn ra bên trong hệ thống giáo dục. Ngoài trường học, chúng ta cũng sẽ học từ những nơi cho chúng ta kiến thức và kinh nghiệm sống thực tế như nhà ga, công ty hoặc ở một nông trại.

Mai: Mình đồng ý. Việc học có sự áp dụng vào cuộc sống thực tế này sẽ cho chúng ta có thấy mình là người trong cuộc, một cảm giác rằng chúng ta là một phần của quá trình.

Người phỏng vấn: Thế còn vai trò của giáo viên thì sao?

Phong: À, họ sẽ giống người cố vấn hơn là người cung cấp thông tin.

Người phỏng vấn: Hấp dẫn đó. Em nhìn thấy tương lai như thế nào nữa, Nguyên?

Nguyên: À, em nghĩ vai trò của người cha sẽ thay đổi mạnh mẽ.

Người phỏng vấn: Ồ thế ư? Bằng cách nào?

Nguyên: Người cha hiện đại sẽ không cần thiết là trụ cột của gia đình, ông ta có thể là người ra ngoài lao động hoặc có thể ở nhà để chăm sóc con cái.

Người phỏng vấn: Và làm việc nhà?

Nguyên: Vâng, đó cũng là công việc, dù có được trả lương hay không, phải không ạ?

Mai: Chắc chắn rồi. Lợi ích có được là trẻ con sẽ được gặp cha của chúng thường xuyên hơn và có mối quan hệ khăng khít với họ hơn. Mình đã không được gặp cha mình nhiều nhưng mình quý mỗi khoảnh khắc ở bên cạnh ông ấy.

Người phỏng vấn: Được rồi, chúng ta chắc chắn sẽ đi qua vài chủ đề hấp dẫn nữa...

Người phỏng vấn: Chúng tôi đã mời một số học sinh từ Trường Oak Tree ở Happy Valley đến diễn đàn Beyond 2030 này và họ sẽ chia sẻ với chúng tôi tầm nhìn về tương lai. Bạn có muốn đi trước không, Phong? 

Phong: Tôi tin rằng sự thay đổi lớn nhất sẽ diễn ra trong hệ thống trường học. Ngoài ở trường, chúng tôi cũng sẽ học hỏi từ những nơi sẽ cung cấp cho chúng tôi kiến ​​thức và kinh nghiệm thực tế, chẳng hạn như tại nhà ga, trong một công ty hoặc trong một trang trại.

Mai: Tôi đồng ý. Ứng dụng học tập thực tế này sẽ cho chúng ta cảm giác tham gia, cảm giác rằng chúng ta là một phần của quá trình.

PV: Còn vai trò của giáo viên thì sao? 

Phong: Ah, họ sẽ giống như người hướng dẫn hơn là nhà cung cấp thông tin. 

Người phỏng vấn: Hấp dẫn. Làm thế nào khác để bạn nhìn thấy tương lai, Nguyễn?

Nguyễn: Chà, tôi nghĩ vai trò của những người cha sẽ thay đổi mạnh mẽ.

Người phỏng vấn: Ồ có? Bằng cách nào?

Nguyễn: Người cha hiện đại sẽ không nhất thiết phải là trụ cột của gia đình. Anh ta có thể làm việc bên ngoài hoặc anh ta có thể ở nhà để chăm sóc con cái. 

Người phỏng vấn: Và làm việc nhà?

Nguyễn: Vâng. Đó là công việc, được trả tiền hay không, phải không? 

Mai: Hoàn toàn đúng. Lợi ích sẽ là trẻ em sẽ nhìn thấy cha của chúng thường xuyên hơn và có mối quan hệ gần gũi hơn với chúng. Tôi không nhìn thấy bố tôi nhiều, nhưng tôi yêu từng khoảnh khắc tôi dành cho ông. 

PV: Chà, chắc chắn chúng tôi đang đề cập đến một số chủ đề thú vị

What is bad behaviour?The following is a list types of bad behaviour seen by a student in a London secondary school:- Playing truant (not coming to school without permission from parents ).- Smoking, swearing, hitting, stealing.- Not doing homework.- Cheating in exams (copying from secret notes or another pupil).- Calling a teacher or  another pupil bad names.- Not listening or not paying attention in lessons.- Wearing unsuitable clothes for school.Here are some of the ways that UK school...
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What is bad behaviour?

The following is a list types of bad behaviour seen by a student in a London secondary school:

- Playing truant (not coming to school without permission from parents ).

- Smoking, swearing, hitting, stealing.

- Not doing homework.

- Cheating in exams (copying from secret notes or another pupil).

- Calling a teacher or  another pupil bad names.

- Not listening or not paying attention in lessons.

- Wearing unsuitable clothes for school.

Here are some of the ways that UK school children can be punished:

- A pupil is excluded from the school and cannot come back.

- A pupil cannot enter the building or attend lessons until the school has a meeting about their case.

- A pupil is asked to stay at school at the end of the school day. The pupil must work for 30 minutes or an hour more before they are allowed to leave the school.

- A pupil has to write a sentence many times on a sheet of paper.

If Vietnam like that, then how will it?

0
Choose a verb in column A with a preposition in column B to make a phrasal verb to complete the sentence:Column AColumn Bwear, turn, wrap, break, go, run, come, cheat, hear, payup, off, on, into, out, for, down, in, around, from1. Someone called my name, and I ................. to see who it was.2. Janice ................... one problem after another at work yesterday.3. He pulled and pulled, but the blowing ball did not ............................4. We haven't ....................... Linda...
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Choose a verb in column A with a preposition in column B to make a phrasal verb to complete the sentence:

Column AColumn B
wear, turn, wrap, break, go, run, come, cheat, hear, payup, off, on, into, out, for, down, in, around, from

1. Someone called my name, and I ................. to see who it was.

2. Janice ................... one problem after another at work yesterday.

3. He pulled and pulled, but the blowing ball did not ............................

4. We haven't ....................... Linda for ages.

5. I don't really .............. for wiinter sports very much.

6. The principal told me you'd been ..................... the test.

7. They should be ...................... the meeting in a few minutes.

8. Young people think that drugs are harmless, but they'll ................... their foolishness someday.

9. After he started drinking heavily, their marriage stared to ..................

10. People who live in the city ....................... their car braked faster than people who live in the countryside.

 

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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 questions from 35 to 44.Bird migration is one of the most interesting yet least understood natural phenomena. Every fall birds from northern latitudes fly in groups to the warmer southern latitudes and then return north in the spring. Scientists agree on the main reasons for migration: to follow the food supply and to avoid harsh climate conditions. For example,...
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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 questions from 35 to 44.

Bird migration is one of the most interesting yet least understood natural phenomena. Every fall birds from northern latitudes fly in groups to the warmer southern latitudes and then return north in the spring. Scientists agree on the main reasons for migration: to follow the food supply and to avoid harsh climate conditions. For example, insects disappear during the cold months, prompting insect-dependent birds to fly south to warm areas where insects breed. No similar consensus has emerged, however, about how birds are able to navigate. Despite many recent experiments, bird experts still do not know how birds arrive at the same destinations every year and then find their way back home in the spring.

Some have suggested that birds find their way by following landmarks, such as rivers and mountain ranges. Experiments have confirmed that some species do follow such topographic features. But that method cannot explain how some birds travel at night. Other studies show that some nocturnal birds navigate by the stars. But that explanation cannot explain daytime migration or travel when the skies are cloudy.

The most popular explanation currently is that birds are guided by Earth's magnetic poles. The mechanism by which that works has not yet been proved. One theory points to the fact that some birds' contain magnetite, a naturally occurring magnetic compound consisting of iron oxide. Magnetite has been found in many animals, including birds. With magnets embedded in their brains, birds would be able to sense the magnetic fields of the North and South Poles.

A recent experiment with homing pigeons provided some evidence that magnetite does play a crucial role in migration. Homing pigeons are known to have the ability to return to their homes after being taken hundreds of miles away. Researchers found that they could train homing pigeons to recognize changes in a magnetic field. When a surrounding magnetic field was normal, the birds would gather at one end of a cage. But when the field's polarity was altered, they hopped to the other end, suggesting that they were directing and responding to changes in the magnetic field.

Another theory has been offered to explain this sensitivity to magnetic poles, a theory that draws upon quantum mechanics, which is the study of how particles move inside an atom. It relies on the fact that electrons come in pairs that orbits the nucleus of an atom. The two electrons spin in opposite directions, creating two magnets that neutralize each other. But when molecules split and react with other molecules to form compounds, the electrons pairs may no longer spin in opposite directions. Instead, they may repel each other, as when two north ends of magnets are pressed together. The electrons struggle to change direction in order to achieve a stable state in which the two electrons again neutralize each other, giving off no magnetic field.

Question 35: The word "phenomena" in the passage is closest in meaning to

A. events          B. trends         C. discoveries         D. theories

Question 36: According to paragraph 1, insects influence bird migration in which of the following ways?

A. insects generate a magnetic field that birds can detect

B. Insects provide a food supply that exists only in warm climates

C. Birds follow the paths taken by flying insects

D. birds know when to migrate by a sudden increase in insect population

Question 37: The word "some" in the passage refers to

A. insects         B. recent experiments  C. bird experts       D. birds

Question 38: According to paragraph 3, birds can detect the magnetic fields of the North and South poles because

A. they sense the motion of electron pairs

B. they can locate the poles by following landmarks

C. they ingest metal particles that are attracted by the poles

D. they have magnetite in their brains

Question 39: The word "embedded" in the passage is closest in meaning to

A. implanted        B. attached         C. attracted        D. activated

Question 40: The author discusses "homing pigeons" in paragraph 4 in order to

A. provide an example of how humans can train birds

B. describe an experiment showing the importance of magnetite

C. show that homing pigeons return home by following landmarks

D. report homing pigeons' behavior inside a cage

Question 41: According to the passage, all of the following are theories about how birds navigate EXCEPT:

A. They follow landmarks like rivers and mountains

B. They are guided by their position relative to the stars

C. They feel vibrations in nerve endings in their brains

D. They respond to changes in light

Question 42: According to paragraph 4, the pigeons moved to the opposite end of a cage because

A. The magnetic field was normal

B. The magnetic field was stronger at one end

C. The magnetic field changed its polarity

D. The magnetic field was removed

Question 43: The word "altered" in the passage is closest in meaning to

A. reversed        B. cancelled        C. strengthened         D. detected

Question 44: Which of the following can be inferred about an electron pair in two north ends of magnets?

A. The two electrons spin in opposite directions

B. One electron will move to the south end

C. One electron will be captured by the nucleus

D. The two electrons spin in the same direction

1
24 tháng 7 2019

1B

2B

3C

4C

5A

6D

7B

8A

9C

10D

T.I.C.K GIÚP MK NHÉ!

2 tháng 11 2020

British Rail apologized for the cancellation of the 4.20 to Bath.

cancellation là dạng danh từ của động từ cancel, mang ý nghĩa sự hủy bỏ.

13 tháng 2 2019

Complete the passage with a suitable word from the box.

. . .

. . .

Are you looking for a cheap, clean, (1)__effective___ source of power that doesn't cause pollution or waste natural (2)__resources___? Look no furthet than solar energy. While mosr (3)__fuels___ now in use are beging burned at an astonishing rate, solar energy, or (4)__power___ from the sun, will last as long as the world lasts. This energy has already been used to (5)__heat___ and cool homes. and to cook food. It has been used (6)___experimentally__ in radio batteries and in furnishing power for telephone lines. The (7)___devices__. However, are cheap to operate but very expensive to (8)___produce__.

18 tháng 2 2019

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