IMG-LOGO

Câu hỏi:

13/07/2024 141

The author uses Alexander Fleming as an example of ________.

A. one of the most famous inventors in history

B. a person who made an accidental scientific discovery

Đáp án chính xác

C. someone who became a millionaire from his invention

D. a man who dedicated his life to medical science

 Xem lời giải

Trả lời:

verified Giải bởi Vietjack

Tác giả sử dụng Alexander Fleming làm ví dụ của ________.

A. một trong những nhà phát minh nổi tiếng nhất trong lịch sử

B. một người đã thực hiện một khám phá khoa học tình cờ

C. một người trở thành triệu phú từ phát minh của mình

D. một người đàn ông đã cống hiến cuộc đời mình cho khoa học y khoa

Dẫn chứng: Scientists have also made crucial discoveries by accident when they were conducting experiments.

Tạm dịch: Các nhà khoa học cũng đã tình cờ có những khám phá quan trọng khi họ đang tiến hành thí nghiệm.

Chọn đáp án là: B

Câu trả lời này có hữu ích không?

0

Gói VIP thi online tại VietJack (chỉ 400k/1 năm học), luyện tập gần 1 triệu câu hỏi có đáp án chi tiết

ĐĂNG KÝ VIP

CÂU HỎI HOT CÙNG CHỦ ĐỀ

Câu 1:

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.

Rain pounded down on the roof. I was trying to read but the sound was too loud. I couldn’t help myself from being a little grumpy. I wanted to be outside playing, but the rain was keeping me inside.

My mom had gone to the grocery store, and my dad was spending Saturday at the office. I had planned to spend the day hiking, but Mother Nature decided that today was the perfect day for rain.

It meant that I would have to entertain myself. I spent most of the morning playing with my stuffed animals and reading. I was sitting next to the window staring out when I got a strange idea: why not just go outside anyway?

I put on my boots and a big raincoat and stepped out into the wet world. It was raining hard but it wasn’t cold. All I could hear were raindrops and the wind. I decided to go on my hike anyway.

My feet didn’t make any sound on the wet ground and the forest seemed different. I went to my favourite place and sat down. In the summer, my best friend Ellen and I would come here and sit for hours. It was our special place. All of a sudden, I thought I heard someone shouting my name. I turned and saw Ellen walking up behind me.

“Oh my Gosh! It’s really you, Martha!” she said. “I can’t believe that you are out here right now. I thought I would be the only person crazy enough to go for a walk in the rain.”

I was very happy to have some company. We decided that hiking in the rain was just as fun as hiking in the sunshine. We planned on hiking in the rain again.

Question 1: What is the best title for the story?

Xem đáp án » 25/08/2022 953

Câu 2:

The word “grumpy” in paragraph 1 is closest in meaning to

Xem đáp án » 25/08/2022 486

Câu 3:

The word “company in the last paragraph is closest in meaning to

Xem đáp án » 25/08/2022 453

Câu 4:

What does Martha mean when she says “It meant that I would have to entertain myself”?

Xem đáp án » 25/08/2022 443

Câu 5:

What was keeping Martha inside?

Xem đáp án » 25/08/2022 421

Câu 6:

What does the author imply about penicillin?

Xem đáp án » 25/08/2022 276

Câu 7:

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.

Telecommuting is some form of computer communication between employees’ homes and offices. For employees whose job involve sitting at a terminal or word processor entering data or typing reports, the location of the computer is of no consequence. If the machine can communicate over telephone lines, when the work is completed, employees can dial the office computer and transmit the material to their employers. A recent survey in USA Today estimates that there are approximately 8,7 million telecommuters. But although the numbers are rising annually, the trend does not appear to be as significant as predicted when Business Week published “The Portable Executive” as its cover story a few years ago. Why hasn’t telecommuting become more popular?

Clearly, change simply takes time. But in addition, there has been active resistance on the part of many managers. These executives claim that supervising the telecommuters in a large work force scattered across the country would be too difficult, or, at least, systems for managing them are not yet developed, thereby complicating the manager’s responsibilities.

It is also true that employees who are given the option of telecommuting are reluctant to accept the opportunity. Most people feel that they need regular interaction with a group, and many are concerned that they will not have the same consideration for advancement if they are not more visible in the office setting. Some people feel that even when a space in their homes is set aside as a work area, they never really get away from the office.

 With which of the following topics is the passage primarily concerned?

Xem đáp án » 25/08/2022 256

Câu 8:

The phrase “of no consequence” means

Xem đáp án » 25/08/2022 224

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.

 

In 1752, Benjamin Franklin made his textbook experiment with a brass key and a silk kite that he flew in a thunderstorm to prove that lightning and electricity are the same thing. In 1920, a kite-flying championship for families and individuals was held in London. These two seemingly unrelated events underscore the fact that kites can be flown for both pleasure and scientific purposes. For example, in the 1800s weather bureaus flew kites to record temperature and humidity at certain altitudes. On one occasion, ten kites were strung together and flown at a height of four miles to lift men and carry cameras aloft.

The kite’s ability to fly depends on its construction and the way that its line is attached. The familiar diamond - shaped kite flies when its covered face is aligned against the wind flow. The line attached to the nose of the kite pulls it into the wind, thus creating the necessary angle for the lift force. If the kite’s construction and the angle of the air stream are correct, the kite will encounter greater pressure against its face and lower pressure against its back. The difference in the pressure creates a lift that causes the kite to rise until it hangs level from its bridle. Its angle against the wind should be sufficiently large or small to create maximum lift to overcome both drag and gravity. The towing point to which the line is attached is important because it sets the kite’s angle relative to the air flow. Although the kite must be headed up and into the wind with a velocity of 8 to 20 miles per hour, it can maintain its position through a tail, a rudder, a keel, vents, or tassels.

Question 15: What is the main topic of the passage?

Xem đáp án » 25/08/2022 220

Câu 10:

The author mentions all of the following as concerns of telecommuting, EXCEPT

Xem đáp án » 25/08/2022 206

Câu 11:

The word “paralyzed” in paragraph 1 is closest in meaning to

Xem đáp án » 25/08/2022 202

Câu 12:

In paragraph 1, why does the author mention the platypus?

Xem đáp án » 25/08/2022 178

Câu 13:

What is necessary condition for the kite to fly?

Xem đáp án » 25/08/2022 177

Câu 14:

In line 20, the word “launched” is closest in meaning to _______.

Xem đáp án » 25/08/2022 176

Câu 15:

What does the author mean by stating that “function should determine form”?

Xem đáp án » 25/08/2022 169