either...or; neither...nor; both...and列举句子。

Question

1.either...or; neither...nor; both...and的用法：either...or表示两者之间的选择；neither...nor表示两者都不；both...and表示两者都。这三组词都可表示并列。请分别用这三组词列举句子。
2过去进行时的构成和用法。举例说明。
3.带有if的真实条件句。用if造真实条件句。 格位这个怎么弄啊~~帮个忙

Answer 1

1. Either dye or paints are used to colour cloth.
不论是染料还是颜料都是用来染布的。
Neither she nor I go shopping tonight。
我和她晚上都不去购物。
Both you and I are students。
我和你都是学生
2.过去进行时的构成 be+doing ，表示在过去的某一时刻正在发生的事情
主语+was/were+ving+其他
3.The cat will scratch you if you pull her tail．
如果你拉猫的尾巴,它会抓你。

参考资料：http://hi.baidu.com/yuxinping/blog/item/7ab8840a19ab6c1f94ca6b15.html

Answer 2

Either he or me likes fishing.
Neither he nor me like fishing.
Both he and me like fishing.

Answer 3

1.Either you or I will go to the meeting.
Neither he nor you are wrong.
Both you and I are students.
2.过去进行时是表示在过去某一时刻正在进行的动作，他往往与某一个时间状语连用。如：this time yesterday,then等。它的构成：was/were doing.
He was doing his homework at 7 o'clock yesterday evening.
3.if既可以引导真实条件句，又可以引导非真实条件句（虚拟条件句）。
真实条件句：If it is rainy tomorrow,I won't go there.
非真实条件句：If I were you,I wouldn't go there.

Answer 4

1.Either you or he will go there.
Neither you nor I will go there.
Both you and I will go there.
2.构成：be(was,were）+V ing(现在分词）
基本用法：表示在过去的某一时刻正在发生的事情或存在的状态。
I was watching TV when somebody knocked at the door.
I was reading while he was drawing.
3.非真实条件句：If I were you ,I would help him.

真实条件句:I won't go there if it rains tomorrow.

Answer 5

either...or...
neither...nor连接两个主语时，其谓语动词应与最近的一个主语在人称和数上保持一致，这就是我们通常说的"就近原则"。
both...and表示两者都……
例：both
you
and
i
are
good
students.
你和我都是好学生。
注意：动词谓语用复数
either...or表示两者中有一个，要么…要么
例：either
you
or
i
am
good
students.
要么你是好学生，要么我是好学生。
注意：动词谓语就近原则。
neither...nor表示两者都不
例：neither
you
nor
i
am
good
students.
你和我都不是好学生。
注意：动词谓语就近原则。