講義：

一般現(xiàn)在時(shí)

一、be動(dòng)詞的一般現(xiàn)在時(shí)

1.be動(dòng)詞的一般現(xiàn)在時(shí)常用來(lái)討論客觀存在的事實(shí)或狀態(tài)，其肯定形式有am,is, are三種。其中am用于第一人稱I；is用于第三人稱單數(shù)形式he, she, it及其他單數(shù)名詞；are用于第二人稱you、復(fù)數(shù)人稱we, you, they及可數(shù)名詞復(fù)數(shù)或并列名詞做主語(yǔ)時(shí)?？蛇M(jìn)行縮寫。

例：I am Gina. =I'm Gina.

He is Brown. =He's Brown.

They are Jane and Linda. =They're Jane and Linda.

2. be動(dòng)詞的否定式是在be后面加not。（表格為一般現(xiàn)在時(shí)態(tài)中，be動(dòng)詞的否定形式）

3.be動(dòng)詞的一般疑問(wèn)句的結(jié)構(gòu)為：be(am/is/are)+主語(yǔ)+……？

肯定回答為：Yes, 主語(yǔ)+be(am/is/are).

否定回答為：No, 主語(yǔ)+be(am/is/are)+not.

例：-Are they your classmates?

-Yes, they are. / No, they aren't/are not.

注意：第一人稱I變一般疑問(wèn)句時(shí)，需轉(zhuǎn)換成第二人稱you。

二、實(shí)意動(dòng)詞的一般現(xiàn)在時(shí)

1.肯定形式：

當(dāng)句子的主語(yǔ)是第三人稱單數(shù)形式時(shí)，謂語(yǔ)動(dòng)詞也要用第三人稱單數(shù)形式。其變化規(guī)律如下：

例：He gets up at six every day.

2.否定形式：

3.一般疑問(wèn)及回答：

一般將來(lái)時(shí)

1.用be going to do表示將來(lái)：

一是表示“意圖”，即打算在最近的將來(lái)或?qū)?lái)進(jìn)行某事。

Are you going to post that letter?

How long is he going to stay here?

I am going to book a ticket.

二是表示“預(yù)見(jiàn)”，即現(xiàn)在已有跡象表明將要發(fā)生或即將發(fā)生某種情況。

It's going to rain.

George is putting on weight; he is going to be quite fat.

2. 用will / shall do表示將來(lái)：

一是表示預(yù)見(jiàn)

You will feel better after taking this medicine.

Do you think it will rain?

二是表示意圖

I will not lend the book to you.

Take it easy! I will not do it any longer.

基本結(jié)構(gòu)：She will come to have class tomorrow.

Will she come to have class tomorrow?

She won't come to have class tomorrow.

What will she do tomorrow?

肯定形式：①am/is/are going to + do；②will/shall + do.

否定形式：①am/is/are not going to + do；②will/shall not + do.