一般将来时讲解教学案
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一般将来时考点分析
1.will/shall +动词原形
表示未来的动作或状态常用will / shall + 动词原形(常与表示将来的时间状语边用如tomorrow、next week等)。表示“预见,意图”shall多用于第一人称,will多用于第二三人称。
(1)will可用来表示事物的固有属性或必然趋势
Fish will die without water.
(2) Will,shall表示将来,有时含偶然性,临时性决定
Do you know Mr.Smith has come to our town
No,I will go and visit him right now.
PS:有时will用于条件状语从句中并不表示将来,而是表达“意愿,拒绝,推论”等意思
If you don’t come ,we will ask someone else
2.be going to与will / shall, be to do, be about to do用法及区别:
(1)be going to+动词原形表示“打算做某事或已经有迹象表明将要发生某事”经过考虑或已经事先做了准备强调主语的主观意愿
PS:be going to 表将来,不能用在条件状语从句的主句中;而will则能,表意愿。如:
I f it is fine, we’ll go fishing.(正确)
(2)be about to+动词原形表示“即将发生的动作”后面不能接时间状语或状语从句,但可以和并列连接词when(=and at that time)
The sun is about to leave before five o’clock
The train is about to start.
(3)shall / will do+动词原形表示“未事先考虑过,即说话时临时作出的决定”。
If it is fine, we are going to go fishing.(错误)
(4)be to do sth.
①表按计划、安排即将发生的动作
A meeting is to be held at 3:00 o’clock this aftern oon
She is to get married next month.
②表示“应该”相当于should,ought to
You are to report it to the police
Wha t is to be done ?
③表示“打算”intend ,want
If we are to be there before ten ,we’ll have to go now
3.表示趋向行为的动词如come、go、start、begin、leav,arrivee等词常用进行时的形式表示将来时。即:现在进行时表将来,带有“意图,安排,打算”的含义I’m attending the meeting tomorrow
We are leaving for New York after the performance
4.一般现在表将来
(1)在条件或时间状语从句中用一般现在时表示将来(详见一般现在时考点分析)
(2)按规定或时间表预计要发生的动作或事情
The train arrives at 9 o’clock
There is a new movie
EXERCISE
In such dry weather ,the flowers will have to be watered if they _______.
A have survived
B are to survive
C would survive
D will survive
Ladies and gentlemen,please fasten your seat beat.The plane _____-.
A takes off
B is taking off
C has taken off
D took off