阅读理解。 English words don't stay the same. People need new words for new inventions. Different words come into use, or older words are used in a new way. English can change by borrowing words from other languages. The word 'tomato' was borrowed from Mexico, and' tea' came from China, and so on. Now a great many of new space and science words are being borrowed from other countries, too. New words can be formed in other ways. For example, some can be formed by adding two words together. 'Weekend' and 'cookbook' are made up of two parts. Sometimes new words are shorter forms of older words. The word'photo' was made from 'photograph' by cutting off the end of the longer word. 'Plane' was made by cutting off the front part of 'airplane'. The names of people and products can become new words. Our 'sandwich' was named after a man named Sandwich and 'sello (透明胶带)' was a name given by the company that first made the product. 1. New English words are needed because _____. [     ] A. people use old words in a new way B. people need a new way to explain C. the world is changing and developing D. new ideas and new inventions come about quickly 2. We know from the passage that _____. [     ] A. new science words are shorter than the old ones B. the best way to make a new word is adding words together C. some new English words are borrowed from other languages D. most new English words are borrowed from other languages 3. How many ways of developing English words does the passage tell us? [     ] A. Three. B. Four. C. Five. D. Six.