5．When you are searching for some information online，just as you ________ look at when a book was published，you must also check the dates of the websites，usually at the bottom of the webpage．（　�。�
A．mustB．mightC．canD．should

分析 當(dāng)你在網(wǎng)上搜查信息時(shí)，也許正如你看一本出版的書，你也必須核查通常位于網(wǎng)頁(yè)底部的日期．

解答 答案是B．本題考查表示推測(cè)的情態(tài)動(dòng)詞；must在肯定句中表示"有客觀依據(jù)的推斷"，"肯定…"，本題中無肯定推測(cè)的客觀依據(jù)，故排除；might可以用在肯定句和否定句中表示不太確定的推測(cè)"也許"，本題中表示在看出版的書的時(shí)候你"也許"會(huì)看書的出版日期，故B正確；can往往用在否定句和疑問句中表示推測(cè)，故排除；should表示"責(zé)任和義務(wù)"，不符合語(yǔ)境．

點(diǎn)評(píng) 要在正確理解情態(tài)動(dòng)詞的基本含義的基礎(chǔ)上，整體理解語(yǔ)境中的情感態(tài)度，做出合理的判斷．

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