18．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 surrounding context gives a very clear idea of the meaning of the word．Even if you can't work out the meaning exactly，you may be able to get a vague idea，enough to enable you to continue reading．
Sometimes it is impossible to guess the meaning of a word from the context and then you will have to decide whether the word is important enough to make it worthwhile stopping 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 used much more efficiently if you only look up the words which are necessary to understand the text and this means that you must develop the skill to decide whether the words are worth looking up．
25．The passage mainly tells us in our reading what we would doD．
A．without knowledge of English
B．when we look up words in a dictionary
C．when we are guessing new words
D．without using a dictionary
26．What does the underlined word"vague"mean？B
A．mysterious．
B．not clear．
C．exact．
D．important．
27．In our reading some words we don't knowB．
A．help us to understand the surrounding context well
B．don't prevent us understanding the main points of the text
C．will be remembered forever
D．a(chǎn)re borrowed from other languages
28．In this passage the writerC．
A．a(chǎn)dvised us to use the dictionary as much as possible
B．told us not to be discouraged when we use a dictionary in our English study．
C．gave us some advice on how to deal with these unknown words
D．introduced some ways to take notes in the course of reading．
分析 本文是一篇說明文．文章介紹了閱讀文章時，我們遇到生詞的處理方法--可以根據(jù)前后句大概猜測該詞的意思、在不影響大意的情況下，跳過這些詞以及判斷你有沒有必要查這個詞
解答 25 D 考查細(xì)節(jié)理解．根據(jù)文章第一段中的第一句話If you don't use a dictionary．What should you do instead？可知，文章回答的是：如果你不用詞典，你在閱讀文章的時候，怎么做．緊接著下文給出解釋，結(jié)合選項，故選D．
26 B 考查推測詞義．根據(jù)文章第一段中的Even if you can't work out the meaning exactly，you may be able to get a vague idea，enough to enable you to continue reading．可知，即使你不能弄清楚這詞的準(zhǔn)確意思，你可以知道它的模糊意思，這足以使你繼續(xù)閱讀．故選B．
27 B 考查細(xì)節(jié)理解．根據(jù)文章第三段中的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．可知，在我們閱讀文章的時候，我們會遇到一些我們不懂的詞，這不會阻止你理解文章的大意．故選B．
28 C 考查文章大意．根據(jù)文章第一段中的中心句If you don't use a dictionary．What should you do instead？可知，文章告訴了我們處理閱讀時遇到生詞的三個方法．1．根據(jù)語境猜測詞義；2．在不影響大意的情況下，跳過這些詞；3．判斷你有沒有必要查這個詞．由此可知，答案為C
點評 本文是一個人生感悟類閱讀，題目涉及多道細(xì)節(jié)理解題，做題時結(jié)合原文和題目有針對性的找出相關(guān)語句進(jìn)行仔細(xì)分析，結(jié)合選項選出正確答案．推理判斷題也是要在抓住關(guān)鍵句子的基礎(chǔ)上合理的分析才能得出正確答案，切忌胡亂猜測，一定要做到有理有據(jù)．
