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 23 to 27.
The Microscope
One of the most important inventions in the development of science and medicine was the microscope. It was (23) ........... the principle that light could be “refracted” or bent, by a glass lens. It was soon discovered that tiny objects could be magnified (24) ........... size when viewed through a glass lens that had been ground and polished in a specific (25) ........... 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 (26) ........... 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 (27) ........... very sharp and accurate magnifying lenses.
Điền vào số (23)
A. based upon
B. based by
C. based in
D. based at
Chọn đáp án A
- be based on/ upon: được dựa vào, căn cứ vào
E.g: The film is based on a real-life story. (Bộ phim được dựa theo một câu chuyện đời thực.)
" 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 hoạt động dựa theo nguyên tắc khúc xạ ánh sáng qua thấu kính thủy tinh).