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Câu hỏi: 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 25 to 29.
One of the most important inventions in the development of science and medicine was the microscope. It was (25) ___________ the principle that light could be "refracted" or bent, by a glass lens. It was soon discovered that tiny objects could be magnified (26) ___________ size when viewed through a glass lens that had been ground and polished in a specific (27) ___________ .
Although the principle was known to the Chinese as early as 1000 A.D, it was not until the 13th and 14th centuries in Europe (28) ___________ it was put to practical use in the form of eyeglasses. In Europe the first microscope was invented by brothers Zacharias and Hans Janssen, two Dutch eyeglass-makers, around 1590. They built a "compound" microscope, so called because of its two lenses. The most significant development and use of the microscope during this period, however, belongs to another Dutch optician, Antonie van Leeuwenhoek. Bom in Delft, Holland, he became skilled at (29) ___________ very sharp and accurate magnifying lenses.
The word or phrase which best fits the gap (25) is...
A. based upon
B. based by
C. based in
D. based at
One of the most important inventions in the development of science and medicine was the microscope. It was (25) ___________ the principle that light could be "refracted" or bent, by a glass lens. It was soon discovered that tiny objects could be magnified (26) ___________ size when viewed through a glass lens that had been ground and polished in a specific (27) ___________ .
Although the principle was known to the Chinese as early as 1000 A.D, it was not until the 13th and 14th centuries in Europe (28) ___________ it was put to practical use in the form of eyeglasses. In Europe the first microscope was invented by brothers Zacharias and Hans Janssen, two Dutch eyeglass-makers, around 1590. They built a "compound" microscope, so called because of its two lenses. The most significant development and use of the microscope during this period, however, belongs to another Dutch optician, Antonie van Leeuwenhoek. Bom in Delft, Holland, he became skilled at (29) ___________ very sharp and accurate magnifying lenses.
The word or phrase which best fits the gap (25) is...
A. based upon
B. based by
C. based in
D. based at
- be based on/ upon: được dựa vào, căn cứ vào
"One of the most important inventions in the development of science and medicine was the microscope. It was based upon the principle that light could be "refracted" or bent, by a glass lens. (Một trong những phát minh quan trọng nhất trong sự phát triển của khoa học và y học là kính hiển vi. Nó được hoạt động dựa theo nguyên tắc khúc xạ ánh sáng qua thấu kính thủy tinh.)
"One of the most important inventions in the development of science and medicine was the microscope. It was based upon the principle that light could be "refracted" or bent, by a glass lens. (Một trong những phát minh quan trọng nhất trong sự phát triển của khoa học và y học là kính hiển vi. Nó được hoạt động dựa theo nguyên tắc khúc xạ ánh sáng qua thấu kính thủy tinh.)
Đáp án A.