3. When _____? - In 1928. A. penicillin was discovered B. was penicillin discovered C. penicillin has discovered D. has penicillin discovered4. Most of the work ____

#Tiếng anh lớp 8

0

BL

BẢO LINH NGUYỄN

9 tháng 12 2021

1. Many U.S. automobiles --------------- in Detroit,Michigan. A. manufacture B. have manufactured C. are manufactured D. are manufacturing 2. I still can’t believe it! My bicycle ----------- last night. A. was stolen B. was stealing C. stolen D. stole 3. Let’s go ahead and do it now. Nothing ------------ by waiting. A. will be accomplished B. accomplished C. has accomplished D. accomplishes 4.” When ----------? “ - In 1928 A. penicillin was discovered B. did penicillin discovered C. was...

#Tiếng anh lớp 12

1

NM

Nguyễn Minh Anh

9 tháng 12 2021

2. Alexander Fleming discovered penicillin and received the Nobel Prize in 1945.

Penicillin Penicillin was discovered by Alexander Fleming and he received the Nobel Prize in 1945.

3. The last time my father played tennis was in 1999.

My father has not played tennis since 1990.

4. Bob is the most intelligent student in our class.

Nobody in our class is more intelligent than Bob.

5. Helen likes camping on the pasture.

Helen is fond of camping on the pasture.

6. They reported that the climbers got lost.

The climbers were reported to got lost.

7. Watching an international football match is wonderful.

I find it is wonderful to watch an international football match.

8. John asked the worker to repair the roof.

John had a worker repaired the roof.

9. His parents always make him study hard.

He was made to study hard by his parents.

10. Nam is the best player in our school team.

No one in our school team can play as well as Nam.

Đúng(4)

HT

Hoàng Thị Phương Linh

25 tháng 7 2018

#Tiếng anh lớp 8

2

NN

Ngố ngây ngô

13 tháng 8 2018

1. Many U.S. automobiles --------------- in Detroit,Michigan.

A. manufacture B. have manufactured C. are manufactured D. are manufacturing

2. I still can’t believe it! My bicycle ----------- last night.

A. was stolen B. was stealing C. stolen D. stole

3. Let’s go ahead and do it now. Nothing ------------ by waiting.

A. will be accomplished B. accomplished C. has accomplished D. accomplishes

4.” When ----------? “ - In 1928

A. penicillin was discovered B. did penicillin discovered C. was penicillin discovered D. did penicillin discover

5. The rescuers ---------- for their bravery and fortitude in locating the lost mountain climbers.

A. were praised B. praised C. were praising D. praising

6. Vitamin C ---------- by the human body. It gets into the bloods stream quickly.

A. absorbs easily B. is easily absorbing C. is easily absorbed D. absorbed easily

7. Renoir is one of the most popular French impressionist painters. His paintings ---------- masterpieces all over the world

. A. had considered B. are considering C. are considered D. consider

8. We can’t go along here because the road is ---------------.

A. been repaired B. being repaired C. repaired D. repairing

9. More than 50 films --------------- in HCMC since June.

A. were shown B. had been shown C. have been shown D. have shown

Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions. People think that Alexander Fleming discovered penicillin in 1928. A. It was thought that Alexander Fleming discovered penicillin in 1928. B. Alexander Fleming was thought to have discovered penicillin in 1928. C. Penicillin is thought to have been discovered by Alexander Fleming in 1928. D. Alexander Fleming discovered penicillin in 1928 is...

CM

Cù Minh Duy

13 tháng 8 2018

1. C. are manufactured

2. A. was stolen

3. A. will be accomplished

4. C. was penicillin dicovered

5. A. were praised

6. C. is easily absorbed

7. C. are considered

8. B. being repaired

9. C. have been shown

Đúng(1)

LQ

Lê Quỳnh Anh

22 tháng 9 2018

1

DH

Dương Hoàn Anh

22 tháng 9 2018

Đáp án C.
Cấu trúc bị động hai mệnh đề (bị động kép):
People think that + S+ V (quá khứ đơn) = S + to be + thought to have + PII
Dịch: Mọi người nghĩ rằng Alexander Fleming đã khám phá ra Penicillin vào nám 1928.
= C. Penicillin được cho là đã được Alexander Fleming phát hiện vào năm 1928.

Khoanh tròn vào phuơng án đúng.1. Alexander Fleming,_______________received the Nobel Prize in 1945A. who discovered penicillin B. which discovered penicillinC. he discovered penicillin D. that discovered penicillin2. John Jamess Audubon, who was a naturalist and an artist, wrote great work _______ called “Birds of America”A. which it is B. which is C. whom is D. is3. Immigrants _____________after 1880 settled mainly in large cities.A. which came to...

IC

I'm Chi

10 tháng 10 2021

#Tiếng anh lớp 9

2

KH

Khai Hoan Nguyen

10 tháng 10 2021

1A

2B

3D

4C

5A

6D

7C

8B

CT

Cao Tùng Lâm

10 tháng 10 2021

1A

2B

3D

4C

5A

6D

7C

8B

complete the sentences with the corect relative pronous, who, which,whom,when,where,that 1 Alexander Fleming was the man...discovered penicillin 2. I like meeting people...have travelled widely 3. The school...I was educated has been demolished 4. The man... I was talking to last week gave me another version of the events 5. I am working for a contruction company...head office is in leeds 6 My grandfather,...was an extraordinary pianist, lived until the age of 78 7 The book...we read in...

LH

Linh Hoàng Ngọc

27 tháng 11 2021

2 Our environment is becoming more and more .............. A pollute B polluted C pollution D polluting 3 He was so sad because his computer .............. last night A is stolen B stolen C was stolen D steals 4 Football ........... in the school yard by our children at the moment A is played B played C is play D is being played 5 It's difficult to keep people from ............... A litter B littering C littered D being littered 6 They are happy .......... money from recycled things A to...

#Tiếng anh lớp 9

0

LS

lê sỹ phát

26 tháng 3 2020

#Tiếng anh lớp 8

1

HH

Hoàng Hạnh Nguyễn

26 tháng 3 2020

2 Our environment is becoming more and more ..............

A pollute B polluted C pollution D polluting

3 He was so sad because his computer .............. last night

A is stolen B stolen C was stolen D steals

4 Football ........... in the school yard by our children at the moment

A is played B played C is play D is being played

5 It's difficult to keep people from ...............

A litter B littering C littered D being littered

6 They are happy .......... money from recycled things

A to save B when save C when saving D that saving

7 I'm .............. that you would like to join in this club

A pleasure B please C pleased D pleasingly

8 He was so excited ............. as the leader of that group

A selected B to be selected C be selected D selecting

9 Mike was too anxious .............. for the exam result

A wait B waited C to wait D to bed waited

10 I still can't believe it! My bicycle.......... last night

A was stolen B was stoling C stolen D stole

11 Today, many serious childhood diseases......... by early immunization

A are preventing B prevent C can prevent D can be prevented

12 "When ........?"- "In 1928"

A penicillin was discovered B did penicillin discovered C was penicillin discovered D did penicillin disciver

13 "When can I have my car black"

"I think it'll ........... late this afternoon" A finish B be finished C have finished D be finish

LS

lê sỹ phát

26 tháng 3 2020

thanks

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.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...

LQ

Lê Quỳnh Anh

31 tháng 8 2017

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.

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. It is an invaluable medical supply

B. Mold combines with bacteria to make it

C. Some people are not affected by it

D. Doctors seldom use it nowadays

1

DH

Dương Hoàn Anh

31 tháng 8 2017

Chọn A

Tác giả nghĩ gì về penicillin?

A. Nó là một nguồn cung cấp y tế vô giá.

B. Nấm mốc kết hợp với vi khuẩn đã tạo nó.

C. Một số người không bị ảnh hưởng bởi nó.

D. Các bác sĩ hiếm khi sử dụng nó ngày nay.

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. 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...

LQ

Lê Quỳnh Anh

10 tháng 11 2018

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.

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. It is an invaluable medical supply.

B. Mold combines with bacteria to make it.

C. Some people are not affected by it.

D. Doctors seldom use it nowadays.

1

DH

Dương Hoàn Anh

10 tháng 11 2018

Chọn A

Tác giả có ngụ ý gì về penicillin?

A. Là một nguồn cung cấp y tế vô giá.

B. Khuôn kết hợp với vi khuẩn để tạo ra.

C. Một số người không bị ảnh hưởng bởi nó.

D. Các bác sĩ hiếm khi sử dụng nó ngày nay.

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.

Tạm dịch: Khi điều tra sâu hơn, ông đã xác định được một số tính chất hữu ích của penicillin, thứ đã cứu sống hàng triệu người trong vài thập kỷ qua.

=> Đáp án A

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...

LQ

Lê Quỳnh Anh

13 tháng 6 2018

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.

D. Mold combines with bacteria to make it.

1

DH

Dương Hoàn Anh

13 tháng 6 2018

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.