There a__ many words in English, but you can’t know every English word. W___ you read, you’ll often find many new w___ you don’t know. You’ll not have enough t____ to stop reading and try to find every new word in a dictionary（词典）. Sometimes you can g__ the meaning of a new word because you know some of the parts of the new word. For example. if a word ends in the l____ ‘er’, that word must be the name for a p___ or a thing that does some action(动作). A w___ is a person who writes. Sometimes this is not enough to u____ a word, but it will h____ you to know the article(文章) easily when you are reading.