语法补充(反意疑问句+倍数表达).doc

反意疑问句A 并列复合句疑问句部分，谓语动词根据邻近从句的谓语而定。Mr. Smith had been to Beijing for several times, he should have been in China now, shouldnt he?B. 带有定语从句、宾语从句和状语从句的主从复合句疑问部分，谓语动词根据主句的谓语而定。They thought they would meet you at the party, didnt they?If I mistake not, you used to cook your own food, didnt you?C. 祈使句的反意疑问句，其反意疑问形式一般为will/ wont you。还应注意：lets 表示第一人称的祈使句，疑问部分为shall we; 而let us, let me表示第二人称的祈使句，疑问部分为will you.Let us go to the welcome party, will you?Lets have a short break, shall we?D. 含有宾语从句的复合句的主句为I (dont) think, believe, suppose, figure, assume, fancy, imagine, reckon, expect, seem, feel等宾语从句时，附加疑问句的谓语动词和主语应同宾语从句的谓语动词和主语保持一致，如果主语为否定式，疑问句用肯定式。I dont think he can do such a thing, can he?We believe she is the right person for this position, isnt she?E. 谓语动词为系动词、助动词或情态动词时，其反意疑问部分要重复这些动词。They havent had anything to eat for two days, have they?The boy could hardly believe it, could he?F. need和dare作行为动词时，其反意疑问形式为“do(dont)/ does(doesnt)/ did (didnt) + 主语”。He needs a new bicycle, doesnt he?need和dare作情态动词时，其反意疑问形式为“need(neednt)/dare(darent) + 主语”。Xiao Mei dare not ask her teacher, dare she?G. 陈述部分的谓语是used to时，疑问部分用didnt+主语或usednt +主语。He used to take pictures there, didnt he?/ usednt he?H. 陈述部分主语为anyone, everyone, everybody, no one, nobody等指人的不定代词时，疑问部分主语一般用they, 有时也用单数he.Nobody knows about it, do they?I. 陈述部分为anything, everything, nothing, something等指物的合成代词时，疑问部分主语用it。Everything is as usual, isnt it?J. 陈述部分的must表示“必须”时，附加部分用mustnt 表示“应当”时，附加部分用neednt 表示“想必，一定”时，附加部分应根据must后面的动词结构选用适当的助动词形式。 You must obey the traffic rules, mustnt you? You must leave home tomorrow, neednt you? He must be in his seventies, isnt he? She must have had a very good time, didnt she?K. 陈述部分谓语为wish时，附加疑问部分的谓语用may的肯定式。I wish to go out tomorrow, may I?L. 陈述部分谓语为I am时，疑问部分用arent I。M. 陈述部分有have to+ v.(had to+ v.), 疑问部分常用dont + 主语（didnt + 主语）。N陈述部分是“there be”结构，疑问部分用there省略主语代词。 There is something wrong with your watch, isnt there? There will not be any trouble, will there?倍数表达法L. 主语谓语倍数（或分数）as + adj. + asI have three times as many as you.B. 主语谓语倍数（或分数） the size (amount, length) of The earth is 49 times the size of the moon.C. 主语 谓语 倍数（或分数） 形容词（副词）比较级 thanThe grain output is 8 percent higher this ye