Unit10 If you go to the party,you'll have a great time教案24
Unit10 If you go to the party,you'll have a great time教案24第4页



2. 用法:

  (1) 条件状语从句通常由连词if引导,意为"如果、假如",主句不能用be going to表示将来,而应该用shall,will。

    If you leave now, you are never going to regret it.  (错误)

    If you leave now, you will never regret it.  (正确)

  (2) if "如果",引导条件状语从句,主句用一般将来时,从句则用一般现在时,如:

    If it rains tomorrow, I shan't climb the hills.

  注意:宾语从句中的if与条件状语从句if是不同的,宾语从句中的if是否相当于whether(是否),引导宾语从句,时态需根据语境确定。

    I don't know if it will rain tomorrow. 我不知道明天是否会下雨。

二、现在进行时表示将来的时间

  1. 用be doing表示将来:主要意义是表示按计划、安排即将发生的动作,常用于位置转移的动词,如:go,come,leave,arrive等, 也可用于其他动作动词,如:

  We are having fish for dinner.我们晚饭吃鱼。

  We are moving to a different hotel the day after tomorrow.后天我们会去另外一个旅馆。

  这种用法通常带有表示将来的时间状语,如果不带时间状语,则根据上下文可表示最近即将发生的动作。

  A: Where are you going?

  B: I am going for a walk. Are you coming with me?

  A: Yes, I am just coming. Wait for me.

2. 现在进行时表示将来和用be going to 表示将来意思比较接近,但是现在进行时更强调事先已安排好,即将去做的事情, 而be going to 一般只表示打算做某事,有做某事的意图。我们来看两个例子:

  She is having a meeting at 9 tomorrow.她明天早晨9点有个会。

  We are leaving for London next week.我们下周出发去伦敦。

  这两个句子里就是用现在进行时表示将来已经安排好要做的事情。

  

六、补充讲解

来我的晚会 come to my party

在星期六下午 on Saturday afternoon

为考试而学习 study for a test

看医生:go to the doctor

上钢琴课 have a piano lesson

帮助我的父母亲 help my parents

拜访我的阿姨visit my aunt

太多作业 too much homework

不得不;必须 have to

为......而感谢 thanks for ...

辨析:spend ,take ,cost与pay

1.He spent a lot of money on his new car.

He spent a lot of money buying his new car.

spend 必须是人作主语,后可以加时间和金钱,动词必须是ing形式。