During the last 400 years, most scientists have (1) ________on mathematics in their development of their inventions or discoveries. However, one great British scientist, Michael Faraday, did not make (2)__________of mathematics. Faraday, the son of a poor blacksmith, was born in London in 1791 and had no (3) _________beyond reading and writing.
In 1812 Faraday was hired as a bottle washer by the great chemist Humphry Davy. Later, Faraday became a greater scientist than Davy, making the last years of Davy's life embittered (4) __________ jealousy. Faraday made the first (5)__________motor in 1821, a device that used electricity to produce movement.
Điền vào số 5
A. electric
B. electrical
C. electricity
D. electrician's
Đáp án A
Dịch: Faraday tạo ra động cơ điện đầu tiên vào năm 1821
Giải thích: Electric( tính từ): chạy bằng điện