Tiêu đề Unit 1- Test 2.doc ✅

Mark the letter A,B,C, or D on your answer sheet to indicate the correct arrangement of the sentences to make a meaningful paragraph/letter in each of the following questions. Question 16: a. Firstly, the process of invention often involves identifying a problem or need in society. b. This is followed by brainstorming ideas and conducting research to find possible solutions. c. Once a viable solution is conceptualized, inventors move on to prototyping and testing their invention. d. Invention is a crucial driver of progress and innovation in society. e. Finally, after refining the invention based on feedback and testing results, it can be brought to market or implemented for practical use. A. d - a - b - c – e B. a - b - c - d – e C. b - c - a - d – e D. d - b - a - c - e Question 17: a. However, it has lots of storage, it's very cheap. b. Hi, Anna, Guess what! I want to get a smartphone for playing games. c. I can't wait to show it to you! d. At first, The Royal 1000 looks great, but the camera isn't as good as some other phones. e. Mike knows a lot about phones and computers, and he helped me choose my birthday smartphone. f. See you soon! A. b - c- a- e- d- f B. b - d - e - a - c - f C. b- a- d- e- c- f D. b- e- d- a- c- f Mark the letter A,B,C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 18 to 23 Many intentions have been created throughout history. Many of them have changed our lives. In my opinion, the most important is the internet. I think the internet is important because it has changed our lives in many ways. For example, the way we communicate has changed significantly. We can communicate with each other instantly using the internet. Many people even spend more time connecting with family, friends and (18) _________ . You will probably see most people are communicating with their phones and laptops instead of talking to the person next to them (19) _________. The internet has also (20) _________ together in a way that was impossible before, such as working from home and working with people from other countries. (21) _________. By connecting their computer to the internet, people can access the same resources wherever they are in the world. Today, people from all over the global can work together closely without ever meeting face-to- face, sharing views more easily and (22) _________. Although the internet is quite a new invention, it now plays an important role in (23) _________. Without it, things would be very different. Question 18: A. from relatives on the internet than in real life B. relatives on the internet than in real life C. relatives in real life than on the internet D. from relatives in real life than on the internet Question 19: A. when you go to a busy café today B. going to a busy café today C. if you go to a busy café today D. having gone to a busy café today Question 20: A. allowing us working B. allowed us to work C. allowed us work D. to allow us to work Question 21: A. This makes both ways of working become more popular. B. Which makes both ways of working become more popular. C. Making both ways of working become more popular. D. It makes both ways of working become more popular. Question 22: A. spending less time traveling B. spend to less time traveling C. spending less time travel D. spend less time to travel Question 23: A. their lives B. this lives C. your lives D. our lives Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct option that best fits each of the numbered blanks from 24 to 28.

C. the steam engine D. the internal combustion engine Question 33: The words "These" in the passage refers to _______. A. inventors B. internal combustion engines C. automobiles D. many wonderful inventions 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 34 to 40. Each advance in microscopic technique has provided scientists with new perspective, on the function of living organisms and the nature of matter itself. The invention of the visible-light microscope late in the sixteenth century introduced a previously unknown realm of single-celled plants and animals. In the twentieth century, electron microscopes have provided direct views of viruses and minuscule surface structures. Now another type of microscope, one that utilizes X rays rather than light or electrons, offers a different way of examining tiny details; it should extend human perception still farther into the natural world. The dream of building an X-ray microscope dates to 1895; its development, however, was virtually hafted in the 1940's because the development of the electron microscope was progressing rapidly. During the 1940's electron microscopes routinely achieved resolution better than that possible with a visible-light microscope, while the performance of X-ray microscopes resisted improvement. In recent years, however, interest in X-ray microscopes has revived, largely because of advances such as the development of new sources of X-ray illumination. As a result, the brightness available today is millions of times that of X-ray tubes, which, for most of the century, were the only available sources of soft X-rays. The new X-ray microscopes considerably improve on the resolution provided by optical microscopes. They can also be used to map the distribution of certain chemical elements. Some can form pictures in extremely short times; others hold the promise of special capabilities such as three-dimensional imaging. Unlike conventional electron microscopy, X-ray microscopy enables specimens to be kept in air and in water, which means that biological samples can be studied under conditions similar to their natural state. The illumination used, so-called soft X rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten-billionth of a meter), is also sufficiently penetrating to image intact biological cells in many cases. Because of the wavelength of the X rays used, soft X-ray microscopes will never match the highest resolution possible with electron microscopes. Rather, their special properties will make possible investigations that will complement those performed with light- and electron-based instruments. Question 34: What does the passage mainly discuss? A. The detail seen through a microscope B. Sources of illumination for microscope C. A new kind of microscope D. Outdated microscopic techniques Question 35: The word "minuscule" in the first paragraph is opposite in meaning to ______. A. circular B. dangerous C. complex D. enormous Question 36: The word "enables" in paragraph 3 is closest in meaning to ______. A. constitutes B. specifies C. expands D. allows Question 37: Why did it take so long to develop the X-ray microscope? A. Funds for research were insufficient. B. The source of illumination was not bright enough until recently C. Materials used to manufacture X-ray tubes were difficult to obtain. D. X-ray microscopes were too complicated to operate. Question 38: The word "it" in paragraph 1 refers to ______. A. a type of microscope B. human perception C. the natural world D. light Question 39: According to the passage, the invention of the visible-light microscope allowed scientists to ________. A. see viruses directly B. develop the electron microscope later on C. understand more about the distribution of the chemical elements D. discover single-celled plants and animals they had never seen before Question 40: Based on the information in the passage, what can be inferred about X-ray microscopes in the future? A. They will probably replace electron microscopes altogether. B. They will eventually be much cheaper to produce than they are now. C. They will provide information not available from other kinds of microscopes. D. They will eventually chance the illumination range that they now use. The End