8．___ you decide not to receive our information via email any longer，just click the link below to be removed from our list．（　�。�
A．ShouldB．MustC．CouldD．Would

分析 萬一你決定不再接收我們通過郵件發(fā)送的信息，只要點(diǎn)擊下面的鏈接從我們的列表中移除即可．

解答 答案A．
must必須，非得；could可能，可以；would愿意；should除了有"應(yīng)該"的意思外，還有"萬一、竟然"之意，should 表示"可能"時(shí)，肯定句中與if 連用，表示"可能性很小"．放在句首，可省略if．根據(jù)句子所表達(dá)的意思可知should的意思在本題中意思是"萬一"，故答案選A．

點(diǎn)評 本題考查情態(tài)動詞的用法．在掌握情態(tài)動詞的基本含義的時(shí)候，還要掌握一些情態(tài)動詞的特殊含義．如：must表示與說話人愿望相反及不耐煩，含義為偏要、硬要．would+動詞原形表示過去的習(xí)慣或某種傾向．shall用于第二人稱和第三人稱表示建議，允諾，命令，威脅等．
should表示驚訝時(shí)，意思是"竟然"，should還有"萬一、竟然"之意，與if連用，如If you should see her，call me．（萬一你見著她，打電話給我）．

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