Take a Dictionary with You
If you don't use a dictionary, what should you do instead? The first thing you can do is trying to guess what the word means. Often the（41）_____（surround） context gives a very clear idea of the meaning of the word. Even if you can't work out the meaning（42）_____ （exact）, you may be（43）_____ （ability） to get a （44）_____ （vagueness） idea, enough to enable you to continue reading.
Sometimes it is（45）_____ （possible） to guess the meaning of a word from the context and then you will have to decide whether the word is（46）_____ （importance） enough to make it worthwhile（47）_____ （stop） and looking it up in a dictionary, or whether you can just pass it by. Many times in your reading, you will come across words which you don't know, but which do not prevent you from understanding all the main points of the text. You can make your dictionary use much more（48）_____ （ efficiency） if you only look up the words which are（49）_____ （necessity） to understand the text, and this means that you must develop the skill to（50）_____ （decision）whether the words are worth looking up.
41_____.
surrounding
