求几个英语问题

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 1？
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。
一、一般疑问句
一般疑问句也可称为 “yes ／ no questions”，因这种问句通常用yes ／ no来回答，相当于汉语中的“……吗？”其语序是：系动词be ／ 助动词／ 情态动词＋主语＋其他成分？如：
Are you from Japan？
Yes I am． ／ No I'm not．
Is her sister doing her homework now？
Yes she is． ／ No she isn't．
Does he work in a bank？
Yes he does． ／ No he doesn't．
Do you live near your school？
Yes I do． ／ No I don't．
Can you speak French？
Yes I can． ／ No I can't．
May I go home now？
Yes you may． ／ No you mustn'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 1？
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。如：
Are they in town now？
I think so.
May I sit here？
Certainly．
Does he like soccer？
Sorry I don't know．
二、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(↓)。

Hello, boys and girls!如何把一般现在时态的陈述句变为一般疑问句呢？这里教给大家一个"秘诀"，灵验得很呢！

首先按照动词种类的不同将其分为两个家族：

第一家族：含系动词be(am / is / are)或情态动词(can / could等)的一般现在时的句子。

〔秘诀〕一调二改三问号

一调：即把句中的be(am / is / are)或can等词调到主语前；

二改：句中的主语若含有I(my / we)等第一人称代词时，需将它们分别改为you(your / you)；

三问号：句末的句号改为问号。如：

①I am from China.→Are you from China?

②He can mend this bike.→Can he mend this bike?

〔警示〕变为一般疑问句后，朗读时可要用升调哟！

第二家族：含行为动词(即实义动词)的一般现在时的句子。

〔秘诀〕一加二改三问号。

一加：即在句首加助动词Do(第三人称单数作主语时加Does)；

二改：句首加助动词Does之后，谓语动词必须改为原形，句中的主语为第一人称代词时变化同第一家族；

三问号：句末的句号改为问号。如：

①Li Mei likes swimming.→Does Li Mei like swimming?

②He gets up early every morning.→Does he get up early every morning?

③We clean our classroom every day.→Do you clean your classroom every day?

一般疑问句：陈述句变为一般疑问句时，
eg.You are a student.
Are you a student?
He wants to be a teacher.
Does he want to be a teacher?
They don't want to play football.
Don't they want to play football?
对划线部分提问，要看划线部分是句子的什么成分，主语，谓语，宾语，时间壮语等。
He wants to be a teacher.
对he 提问的话，用who
对a teacher 提问，用what.
he often play basketball.
对play football提问用what does he often do?
进行时：现在进行时am/is/are doing sth.
过去进行时：was/were doing sth
He is watching TV.他正在看电视。
I am doing my homework.
They are seeing a film.
I was doing my homework.
They were seeing a film

陈述句改一般疑问句通常把谓语放到宾语前面,现在进行时一般直接加ing ,以e结尾的去e加ing,有的例外,如wait的进行时是waitting