Thứ sáu, 01/11/2024
IMG-LOGO

Câu hỏi:

06/07/2024 86

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 28 to 34.

A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.

Scientists have also made crucial discoveries by accident when they were conducting experiments. In 1928, Alexander Fleming discovered penicillin, an antibiotic, in this manner. He discovered some mold growing in a dish with some bacteria. He noticed that the bacteria seemed to be avoiding the mold. When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades. Likewise, in 1946, scientist Percy Spencer was conducting an experiment with microwaves. He had a candy bar in his pocket, and he noticed that it suddenly melted. He investigated and learned the reason why that had happened. Soon afterward, he built a device that could utilize microwaves to heat food: the microwave oven.

What does the author imply about penicillin?

A. Doctors seldom use it nowadays.

B. Some people are not affected by it.

C. It is an invaluable medical supply.

Đáp án chính xác

D. Mold combines with bacteria to make it.

Trả lời:

verified Giải bởi Vietjack

C

Kiến thức: đọc hiểu

Giải thích:

Tác giả có ý gì về penicillin?

A. Các bác sĩ hiếm khi sử dụng nó ngày nay.        B. Một số người không bị ảnh hưởng bởi nó.

C. Là một nguồn cung cấp y tế vô giá.      D. Khuôn kết hợp với vi khuẩn để tạo ra.

Dẫn chứng: When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades.

 Dịch bài đọc: 

Một số lượng lớn các sáng chế đòi hỏi nhiều năm nghiên cứu và phát triển gian nan trước khi chúng được hoàn thiện. Thí dụ, Thomas Edison đã phải cố gắng hơn 1.000 lần để sáng chế ra bóng đèn sáng trước khi cuối cùng cũng thành công. Lịch  sử  có  rất  nhiều  ví  dụ  khác  của  những người  cố  gắng, nhưng không thể  làm  sáng  chế trước khi họ cuối cùng đã thành công. Tuy nhiên, một số sáng chế đã đến không phải thông qua công việc khó khăn, nhưng do tình cờ.

Trong hầu hết các trường hợp, khi người nào đó vô ý phát minh ra điều gì đó, nhà phát minh đã cố gắng tạo ra một thứ khác. Ví dụ, trong những năm 1930, nhà chế tạo thuốc Roy Plunkett đã cố gắng tạo ra một chất mới có thể sử dụng để làm lạnh các vật dụng. Ông pha trộn một số hóa chất với nhau. Sau đó, ông đưa chúng vào một thùng chứa áp lực và làm mát hỗn hợp. Đến thời điểm thử nghiệm của ông đã hoàn thành, ông đã có một phát minh mới. Nó không phải là một chất mới mặc dù có thể được sử dụng cho tủ lạnh. Thay vào đó, ông đã phát minh Teflon, ngày nay được sử dụng phổ biến nhất để chế tạo các chậu và chảo không dính. Tương tự, nhiều thập kỷ trước đó, John Pemberton là một dược sĩ ở Atlanta, Georgia. Ông đã cố gắng tạo ra một loại thuốc mà mọi người có thể sử dụng bất cứ khi nào họ bị nhức đầu. Trong khi ông không thành công trong nỗ lực đó, ông đã thành công trong việc sáng tạo ra Coca-Cola, nước uống có ga nổi tiếng thế giới.

Các nhà khoa học cũng đã có những khám phá  quan trọng một cách tình cờ khi họ tiến hành các thí nghiệm. Năm 1928, Alexander Fleming phát hiện  ra  penicillin,  một  chất  kháng  sinh,  theo  cách  này.  Ông  phát  hiện  ra một  số  nấm  mốc  phát  triển  trong  một món ăn với  một  số  vi  khuẩn.  Ông  nhận  thấy  rằng  vi  khuẩn dường như tránh nấm mốc. Khi ông điều tra thêm, ông đã xác định một số tính chất hữu ích của penicillin, điều này đã cứu sống hàng triệu người trong vài thập kỷ qua. Tương tự như vậy, vào năm 1946, nhà khoa học Percy Spencer đã tiến hành thí nghiệm với lò vi sóng. Anh ta có một thanh kẹo trong túi, và anh nhận thấy nó tan chảy. Ông điều tra và học được lý do tại sao điều đó đã xảy ra. Ngay sau đó, ông đã chế tạo một thiết bị có thể sử dụng lò vi sóng để nướng thức ăn: lò vi sóng.

Câu trả lời này có hữu ích không?

0

CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

We like ________ policies.

Xem đáp án » 18/06/2021 1,687

Câu 2:

DNA tests ________ accepted in court eases.

Xem đáp án » 18/06/2021 594

Câu 3:

Mark the letter A, B, C, or D on your answer sheet io indicate word whose underlined part differs from the other three in pronunciation in each of the following questions.

Xem đáp án » 18/06/2021 486

Câu 4:

Mark the letter A, B, C, or D on your answer sheet io indicate word whose underlined part differs from the other three in pronunciation in each of the following questions.

Xem đáp án » 18/06/2021 473

Câu 5:

He smokes too much; perhaps that's why he can't get rid of his cough.

Xem đáp án » 18/06/2021 328

Câu 6:

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 28 to 34.

A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.

Scientists have also made crucial discoveries by accident when they were conducting experiments. In 1928, Alexander Fleming discovered penicillin, an antibiotic, in this manner. He discovered some mold growing in a dish with some bacteria. He noticed that the bacteria seemed to be avoiding the mold. When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades. Likewise, in 1946, scientist Percy Spencer was conducting an experiment with microwaves. He had a candy bar in his pocket, and he noticed that it suddenly melted. He investigated and learned the reason why that had happened. Soon afterward, he built a device that could utilize microwaves to heat food: the microwave oven.

The author uses Alexander Fleming as an example of ________.

Xem đáp án » 18/06/2021 315

Câu 7:

She worked here for a while then _________ afternoon she just quit and left.

Xem đáp án » 18/06/2021 258

Câu 8:

Her weigh has increased remarkably since she began receiving treatment.

Xem đáp án » 18/06/2021 252

Câu 9:

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 28 to 34.

A large number of inventions require years of arduous research and development before they are perfected. For instance, Thomas Edison had to make more than 1,000 attempts to invent the incandescent light bulb before he finally succeeded. History is replete with numerous other examples of people trying, yet failing to make inventions before they eventually succeeded. Yet some inventions have come about not through hard work but simply by accident. In most cases, when someone unintentionally invented something, the inventor was attempting to create something else. For example, in the 1930s, chemist Roy Plunkett was attempting to make a new substance that could be used to refrigerate items. He mixed some chemicals together. Then, he put them into a pressurized container and cooled the mixture. By the time his experiment was complete, he had a new invention. It was not a new substance that could be used for refrigeration though. Instead, he had invented Teflon, which is today most commonly used to make nonstick pots and pans. Similarly, decades earlier, John Pemberton was a pharmacist in Atlanta, Georgia. He was attempting to create a tonic that people could use whenever they had headaches. While he was not successful in that endeavor, he managed to invent Coca - Cola, the world - famous carbonated soft drink.

Scientists have also made crucial discoveries by accident when they were conducting experiments. In 1928, Alexander Fleming discovered penicillin, an antibiotic, in this manner. He discovered some mold growing in a dish with some bacteria. He noticed that the bacteria seemed to be avoiding the mold. When he investigated further, he determined some of the many useful properties of penicillin, which has saved millions of lives over the past few decades. Likewise, in 1946, scientist Percy Spencer was conducting an experiment with microwaves. He had a candy bar in his pocket, and he noticed that it suddenly melted. He investigated and learned the reason why that had happened. Soon afterward, he built a device that could utilize microwaves to heat food: the microwave oven.

Which title best summarizes the main idea of the passage?

Xem đáp án » 18/06/2021 205

Câu 10:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27.

WILLIAM THE HERO!

Brave William Baldock, who is six years old, is a hero after helping his mother when she fell downstairs. William quickly rang for an ambulance when he discovered his mother had broken her leg. In spite of being frightened, he (23) ________ the emergency services what had happened and answered all the questions they asked him. He also telephoned his father at work, and then his grandmother, to explain what he had (24) _________. While waiting for these people to come, William looked after his 18-month-old sister. When ambulance man Steve Lyn went to the house, he was amazed: 'It's great that a young boy of six knew the right number to dial, and was able to give us the correct information. (25) ________ of William's quick thinking, we were able to (26) ________ there immediately." Mrs. Baldock left hospital yesterday, very (27) ________ to both William and the ambulance service.
Điền vào ô 23

 

Xem đáp án » 18/06/2021 195

Câu 11:

You're 18! You ________ to be able to look after yourself by now.

Xem đáp án » 18/06/2021 193

Câu 12:

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct word or phrase that best fits each of the numbered blanks from 23 to 27.

WILLIAM THE HERO!

Brave William Baldock, who is six years old, is a hero after helping his mother when she fell downstairs. William quickly rang for an ambulance when he discovered his mother had broken her leg. In spite of being frightened, he (23) ________ the emergency services what had happened and answered all the questions they asked him. He also telephoned his father at work, and then his grandmother, to explain what he had (24) _________. While waiting for these people to come, William looked after his 18-month-old sister. When ambulance man Steve Lyn went to the house, he was amazed: 'It's great that a young boy of six knew the right number to dial, and was able to give us the correct information. (25) ________ of William's quick thinking, we were able to (26) ________ there immediately." Mrs. Baldock left hospital yesterday, very (27) ________ to both William and the ambulance service.

Điền vào ô 26

Xem đáp án » 18/06/2021 192

Câu 13:

Mark the letter A, B, C, or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

Xem đáp án » 18/06/2021 191

Câu 14:

Sue is phoning Mr. Black but his secretary tells her that he is on vacation.

Ann: May I leave a message for Mr. Black, please?

Secretary: ___________.

Xem đáp án » 18/06/2021 183

Câu 15:

The University of Kentucky has held this prestigious title until 1989, when it was granted to the University of Georgia.

Xem đáp án » 18/06/2021 177

Câu hỏi mới nhất

Xem thêm »
Xem thêm »