第三章 時(shí)態(tài) 一般現(xiàn)在時(shí)（The Present Indefinite Tense）

　　英語動(dòng)詞有多種不同形態(tài)表示不同的時(shí)間關(guān)系，稱為時(shí)態(tài)。最常用的時(shí)態(tài)之一是一般現(xiàn)在時(shí)，主要表示:

　　1.現(xiàn)在的或一般的情況或狀態(tài)：

　　I'm sorry I'm late.

　　對(duì)不起我遲到了。

　　You speak good English.

　　你英文講得很好。

　　He is very tired.

　　他現(xiàn)在很疲倦。

　　2.經(jīng)?；蛄?xí)慣性的動(dòng)作：

　　We often write to each other.

　　我們時(shí)常通信。

　　She works very hard.

　　她很用功。

　　They go jogging every day.

　　他們每天跑步。

　　3.表示將要發(fā)生的情憾(僅限于少數(shù)動(dòng)詞)：

　　What time do we arrive in Shanghai?

　　我們什么時(shí)候到達(dá)上海?

　　The train leaves at 2:30 pm.

　　火車下午兩點(diǎn)半開。

　　這時(shí)態(tài)的肯定、否定、疑問及簡(jiǎn)短回答形式如下：

　　1.肯定句:

　　I (You, They) like sports.

　　He (She) likes sports.

　　2.否定句:

　　I (You, They) don't like sports.

　　He (She) doesn't like sports.

　　3.疑問句:

　　Do you (we, they) like sports?

　　Does he (she) like sports?

　　4.簡(jiǎn)短回答:

　　I (we, they) do.

　　I (we, they) don't.

　　Yes, he (she) does.

　　No, he (she) doesn't.

　　動(dòng)詞be的四種形式：

　　1.肯定句：

　　I am a student.

　　You are a student.

　　He (She) is a student.

　　We (You, They) are students.

　　2.否定句:

　　I am not a student.

　　You are not a student.

　　He (She) is not a student.

　　We (You, They) are not students.

　　3.疑問句:

　　Am I a student?

　　Are you a student?

　　Is he (she) a student?

　　Are we (you, they) students?

　　4.簡(jiǎn)短回答:

　　Yes, I am.

　　Yes, you are.

　　Yes, he (she) is.

　　No, I'm not.

　　No, he (she) isn't.

　　No, we (you, they) aren't.