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一般将来时和现在进行时

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他们的BE动词和助动词有什么不一样?
解题思路: 区分一般将来时和现在进行时。
解题过程:
一般现在时表将来
1)下列动词:come, go, arrive, leave, start, begin, return的一般现在时表将来。这主要用来表示在时间上已确定或安排好的事情。
The train leaves at six tomorrow morning.
When does the bus star? It stars in ten minutes.
2)倒装句,表示动作正在进行,如:
Here comes the bus. = The bus is coming.
There goes the bell. = The bell is ringing.
3)在时间或条件句中。
When Bill comes (不是will come), ask him to wait for me.
I'll write to you as soon as I arrive there.
4)在动词hope, take care that, make sure that等后。
I hope they have a nice time next week.
Make sure that the windows are closed before you leave the room.
中学英语中,有些从句只能用一般现在时形式表示一般将来时,现归纳如下,以供参考。
一、在由if,unless引导的条件状语从句中,如:1. If it doesn't rain tomorrow, there will be a sports meet in our school. 2.You will miss the train unless you set out at once.
二、在由when, before, after, as soon as, once, till/ untill引导的时间状语从句中,如:1.When you meet a new word,you may look it up in your dictionary.
2.When you arrive in London at 8 tomorrow morning, it will be 4 o'clock in Bejing in the afternoon.
3.You will have to get everything ready for the party before I come this evening. 4. After you finish reading the whole book, you will be able to know its real meaning.
5.I'll write to you as soon as I get there.
6.Once you understand its meaning,you will easily remember the word.
7.I'll not leave here until/till he comes back.
三、在由as/so long as(只要……)引导的条件的状语从句中,如:
1.It is hard to avoid mistakes, as/so long as you correct them conscientiously, it will be all right.
2. so long as one inch of this deck remains above water, here is
现在进行时表示将来
现在进行时除表现在外,还可以表示将来。现在进行时表将来时常有“意图”“安排”或“打算”的含义。这种现在进行时比较生动,给人一种期待感。
它常表最近或较近的将来,所用动词多是转移动词。如:
  (1) I’m going. 我要走了。
  (2) When are you starting? 你什么时候动身?
表将来的现在进行时除用于转移动词外,亦可用于某些非转移动词。如:
  (1) I’m meeting you after class. 课后我找你。
  (2) What are you doing next Sunday? 下星期你打算干什么?
但偶尔也表示较远的将来。如:
   When I grow up, I’m joining the army. 我长大了要参军。
表将来的现在进行时有时含有“决心”的意思,多用在否定结构中。如:
  (1) I’m not going. 我不走了。
  (2) I’m not waiting any longer. 我不再等了。
有时也用在肯定结构中。如:
   I’m backing out. 我要打退堂鼓了。
用这种现在进行时与对方讲话时可变成命令,不过语气比较温和。如:
  (1) You are staying. 你留下吧。
  (2) Don’t forget: you are taking part too. 不要忘记:你也要参加。
同现在一般时一样,现在进行时也可在时间、条件或原因状语从句中表示将来。如:
  (1) when you are passing my way, please drop in. 你什么时候路过我们家,请进来坐。(用于时间状语从句)
  (2) If they are not doing it, what I am I to do? 如果他们不干,那我该怎么办?(用于条件状语从句)
表示将来的现在进行时也可用在间接引语中,表示说话人相信它将是事实。如:
  He said he is going tomorrow. 他说他明天走。
表将来的现在进行时有时从属于将来时态。如:
  (1) On election night we’ll be telling you what’s happening in various places in this country. 到了选举的夜晚,我们将把全国各地的情况告诉大家。
  (2) when I have time, I’ll come down to the school to see how you’re both doing. 我有空时,会来学校看你们俩的学习情况。 -
在一般将来时中:be动词:is,am are,助动词为:will / shall
在现在进行时中:be动词:is,am are,一般不用助动词。
最终答案:略