Question

Typing（打字）is one of the most important and basic work skills of the 21st century. 1. Thumbing means using one or more thumbs（拇指）to press the keys.

Most people can type between 20 and 35 words a minute. Some typists, however, can work very quickly, at more than 110 words a minute. And people’s left hand usually does 56 percent of the typing.

The most common international English keyboard is QWERTY.2. It is more than 140 years old. Other keyboards include QWERTZ (in Central Europe) and AZERTY (used by most French speakers in Europe). Languages with non-Roman alphabets（字母系统），for example, Arabic, Russian or Japanese, have their own keyboards.

The sentence “The quick brown fox jumps over the lazy dog” is often used to practice typing.3.

Thumbing and typing can hurt you. RSI (repetitive strain injury) is the name of a medical condition you get if you type too much. 4.Anyone who uses a computer a lot is at risk and should know about RSI.

A.It gets the name from the first six letters on the top left side of the keyboard.

B.However, most people do not understand what . RSI is or how serious it can be.

C.Because mobile phones are now so popular, there is a new kind of typing - thumbing.

D.It seems that thumbing is much harder for us to learn.

E.That’s because it uses every letter of the English alphabet.

Answer 1