http://www.***.com/news-27-53107.html 关于助动词你可以去这里看下,有几个练习看能不能做 疑问句可分为：一般疑问句、特殊疑问句和反意疑问句.一般疑问句是疑问句的一种.它是指用yes或no来回答的句子.其结构是：系动词be/助动词/情态动词＋主语＋其他成分?如:Is this your pen?Yes it is./No it isn't.注意：1．将陈述句变为一般疑问句时,如句中有be 动词（am is are …）时,可直接将它们提至主语前.如主语为第一人称,应将其改为第二人称.如：I'm in Class 2Grade 1． → Are you in Class 2Grade We're watching TV． → Are you watching TV?2．陈述句中有情态动词（can may must …）时,也可直接将它们提至主语前,即可成为一般疑问句.如：He can swim now． → Can he swim now?The children may come with us． → May the children come with us?3．陈述句中只有一个实义动词作谓语且其时态为一般现在时,变为一般疑问句时要在句首加do或does 主语后的实义动词用原形.如：I like these animals． → Do you like these animals?She wants to go to the movies． → Does she want to go to the movies?4．一般疑问句一般读升调(↑) 5．一般疑问句有时不用yes或 no 回答.Are they in town now?I think so.May I sit here?Certainly． Does he like soccer?Sorry I don't know． 反意疑问句一般由/"陈述句+简略的一般疑问句/"构成,它主要有/"肯定陈述句+否定的简短问句（简称前肯后否）/"和/"否定陈述句+肯定的简短问句（简称前否后肯）/"两种结构.但在实际运用中,还有许多需要注意的情况,今天我们就来谈谈最常见的两种：1.当陈述部分有few,little,hardly,never等表示否定含义的词时,附加问句部分要用肯定形式.例如：He will never forget his past,will he?他决不会忘记他的过去,对吗?There is no milk in the bottle,is there?瓶子里没有牛奶了,是不是?注：如果陈述部分的否定词是通过加词缀 (前缀或后缀) 构成的,那么,附加问句部分仍用否定形式.例如：That girl is unhappy,isn/'t she?那个女孩不高兴了,是不是?The young man on the motorbike is too careless,isn/'t he?摩托车上的那个年轻人太粗心了,对吧?2.当陈述部分是祈使句时,附加问句常用/"will you?/"也可用/"won/'t /would/can / can/'t you?/"等.例如：Don/'t go to the park by bus,will you?别乘公共汽车去公园,好吗?Close all the windows,will you / won/'t you?把所有的窗户都关上,好吗?注：① let/'s 用于提出建议,包括听话人在内,其附加问句用/"shall we?/"例如：Let/'s go to see the pandas first,shall we?咱们首先去看熊猫,好吗?② let us表示征求对方许可,其附加问句用/"will you?/"例如:Let us wait until 5:00,will you?让我们等到五点,好吗?③ let后接第三人称时,附加问句用/"will you?/"例如：Let him come in,will you?让他进来,好吗?特殊疑问句以疑问词开头,对句中某一成分提问的句子叫特殊疑问句.常用的疑问词有：what who whose which when where how why等.特殊疑问句有两种语序：1．如疑问词作主语或主语的定语,即对主语或主语的定语提问,其语序是陈述句的语序：疑问词（＋主语）＋谓语动词＋其他成分?如：who is singing in the room?whose bike is broken?2．如疑问词作其他成分,即对其他成分提问,其语序是：疑问词＋一般疑问句语序?如：what class are you in?What does she look like?Where are you from?What time does he get up every morning?How do you know?注意：1．回答特殊疑问句时,不能用yes ／ no,即问什么答什么,尤其是简略回答.如：Who is from Canada?Helen (is)． Where's the restaurant?Near the station． Why do you like koalas?Because they are cute． 2．特殊疑问句一般读降调(↓).表达能力没这位朋友好,所以只能复制别人的贴给你了.