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 44 to 50.
Today we take electricity for granted and perhaps we do not realize just how useful this discovery has been. Steam was the first invention that replaced wind power. It was used to drive engines and was passed through pipes and radiators to warm rooms. Petrol mixed with air was the next invention that provided power. Exploded in a cylinder, it drove a motor engine. Beyond these simple and direct uses, those forms have not much adaptability.
On the other hand, we make use of electricity in thousands of ways. From the powerful voltages that drive our electric trains to the tiny current needed to work a simple calculator, and from the huge electric magnet in steel works that can lift 10 tons to the tiny electric magnet in a doorbell, all are powered by electricity. An electric current can be made with equal ease to heat a huge mass of molten metal in a furnace, or to boil a jug for a cup of coffee.
Other than atomic energy, which has not as yet been harnessed to the full, electricity is the greatest power in the world. It is flexible, and so adaptable for any task for which it is wanted. It travels so easily and with incredible speed along wires or conductors that it can be supplied instantly over vast distances.
To generate electricity, huge turbines or generators must be turned. In Australia they use coal or water to drive this machinery. When dams are built, falling water is used to drive the turbines without polluting the atmosphere with smoke from coal.
Atomic power is used in several countries but there is always the fear of an accident. A tragedy once occurred at Chernobyl, in Ukraine, at an atomic power plant used to make electricity. The reactor leaked, which caused many deaths through radiation.
Now scientists are examining new ways of creating electricity without harmful effects to the environment. They may harness the tides as they flow in and out of bays. Most importantly, they hope to trap sunlight more efficiently. We do use solar heaters for swimming pools but as yet improvement in the capacity of the solar cells to create more current is necessary. When this happens, electric cars will be viable and the world will rid itself of the toxic gases given off by trucks and cars that burn fossil fuels.
The author mentions the sources of energy such as wind, steam, petrol in the first paragraph to __________.
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Đáp án B
Tác giả đề cập đến các nguồn năng lượng như gió, hơi nước, xăng dầu ở đoạn đầu tiên để _____ .
A. đề nghị rằng điện nên được thay đổi luân phiên với các nguồn năng lượng an toàn hơn.
B. nhấn mạnh tính hữu dụng và khả năng ứng dụng của điện.
C. ngụ ý rằng điện không phải là nguồn năng lượng hữu ích duy nhất.
D. thảo luận về nguồn năng lượng nào có thể là một sự thay thế phù hợp cho điện.
Thông tin: Beyond these simple and direct uses, those forms have not much adaptability.
Tạm dịch: Ngoài các cách sử dụng đơn giản và trực tiếp này, các dạng năng lượng kể trên không có nhiều khả năng ứng dụng.
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Lying to gain personal benefits can be considered as _________ a crime.
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions.
Every evening I help my son with his homework alike a teacher.
Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions.
My grandfather died because of the war. However, his great spirit was _________ for all generations.
You shouldn’t be too interested in foreign jobs, __________ home is best!
He both looks like Korean and Chinese, so everyone still confuses about his ________.
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
John is the first person _________ documents from the others in our group.
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 34 to 38.
WAYS TO IMPROVE YOUR MEMORY
A good memory is often seen as something that comes naturally, and a bad memory as something (34) _______ cannot be changed, but actually there is a lot that you can do to improve your memory.
We all remember the things we are interested in and forget the ones that bore the US. This no doubt explains the reason why schoolboys remember football results effortlessly but struggle (35) _____ dates
from their history lessons! Take an active interest in what you want to remember and (36) ______ on it consciously. One way to make yourself more interested is to ask questions — the more the better!
Physical exercise is also important for your memory because it increases your heart rate and sends (37) ________ oxygen to your brain, and that makes your memory work better. Exercise also reduces stress, which is very bad for the memory.
The old saying that - eating fish makes your brain may be true after all. Scientists have discovered that the fats found in fish like tuna, sardines, and salmon - (38) __________ in olive oil - help to improve the memory. Vitamin-rich fruits such as oranges, strawberries and red grapes are all good - brain food, too.
(Source: - New Cutting Edge, Cunningham, S. & Moor. 2010. Harlow: Longman)
I _______ a phone call because I felt worried about Nhung Glenda’s surgeon.
“I have stolen documents to sell online since last year” Lien said.
The story was that of a little girl who was born in a well-to-do family and was a top performer in her studies.
Math 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.
