1.be going to 和 will有什么区别?（除了一个是更正式一点）

1.be going to 和 will有什么区别?（除了一个是更正式一点）
2.怎样区分完成时和过去时,比如说他去年去过北京是He has gone to Beijing,last year.还是He went to Beijing,last year.
3.怎样知道在句子中是用so...that such...that too...to还是not enough...to怎样区分这几个词组的用法?
4.学英语有必要非要把英语书上的东西都背下来么?

1be going to 与 will 有如下几点区别：1.be going to 表示近期、眼下就要发生的事情,will 表示的将来时间则较远一些,如：He is going to write a letter tonight.He will write a book one day.2.be going to 表示根据主观判断将来肯定发生的事情,will表示客观上将来势必发生的 事情.He is seriously ill.He is going to die.He will be twenty years old.3.be going to 含有“计划,准备”的意思,而 will 则没有这个意思,如：She is going to lend us her book.He will be here in half an hour.4.在有条件从句的主句中,一般不用 be going to,而多用will,如：If any beasts comes at you,I'll stay with you and help you.掌握了它们的这些不同,你就能很好的区分be going to与will了
2是He went to Beijing last year.注意没有逗号~
一般过去时的时间状语:
yesterday,last week,…ago,in1980,in October,just now,具体的时间状语
共同的时间状语:
this morning,tonight,this April,now,once,before,already,recently,lately
现在完成时的时间状语
for,since,so far,ever,never,just,yet,till / until,up to now,in past years,always,
不确定的时间状语
3）现在完成时可表示持续到现在的动作或状态,动词一般是延续性的,如live,teach,learn,work,study,know.
过去时常用的非持续性动词有come,go,leave,start,die,finish,become,get married等.
举例：
I saw this film yesterday.
（强调看的动作发生过了.）
I have seen this film.
（强调对现在的影响,电影的内容已经知道了.）
Why did you get up so early?
（强调起床的动作已发生过了.）
Who hasn't handed in his paper?
（强调有卷子,可能为不公平竞争.）
She has returned from Paris.
她已从巴黎回来了.
She returned yesterday.
她是昨天回来了.
He has been in the League for three years.
(在团内的状态可延续)
He has been a League member for three years.
(是团员的状态可持续)
He joined the League three years ago.
( 三年前入团,joined为短暂行为.)
I have finished my homework now.
---Will somebody go and get Dr.White?
---He's already been sent for.
句子中如有过去时的时间副词（如 yesterday,last,week,in 1960）时,不能使用现在完成时,要用过去时.
（错）Tom has written a letter to his parents last night.
（对）Tom wrote a letter to his parents last night.
3 so...that
太..而..
too...to
太..而不能..
not enough...to
不够..去做..
eg:That day we were so hungry that we ate off a chicken as big as this.
那天我们太饿了,以致于吃了一只这么大的鸡.
No,he is too big to wear it.
不,他个子太大穿不了
He is not old enough to go school!
4 没必要.
但是要会举一反三.
运用最重要.