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祈使句:表示請求、命令、建議或勸告等的句子叫祈使句,主語you通常省略。
1、祈使句的肯定形式:壹般以動詞原形開頭。 Open the door, please.
2、祈使句的否定形式:在句首謂語動詞前加Don't。 Don't be late for class.
3、說話對象是第壹人稱和第三人稱時,表示建議做某事。 Let me/us Let him/her/them eg. Let's go to school. 註意:
1)祈使句 + and/or + 簡單句是常用句型
祈使句 + and + 簡單句 表示“如果…,就…”
祈使句 + or + 簡單句 表示“…否則…”
eg. 1.Go down the street,and you'll see a hospital. 2.Be quick,or we'll be late.
2)在祈使句後面,常常附加壹個問句,使語氣更加委婉。
eg.①Tell me about it,will you/won't you? ②Don't tell anyone,will you?
③Let's go to school,shall we? ④Let us go out to play for a while,will you?
通常情況下, Let's 表示建議;而Let us 則表示請求
練習題 1)_____ on the thin ice. It's dangerous.
A.Don't skate B.Don't skating C.Skate D.Not skate
2)Let's fly the kite on the playground, _____ ______?(附加問句)
3)Please turn down the radio a bit, ____ _____?(附加問句)
Key:
1) A 祈使句的否定形式壹般在以動詞原形開頭的句守加Don't 即可.
2) shall we 表示請求,故用shall we
3) will you / won't you 通常來說,普通的肯定祈使句用肯定和否定形式的附加問句均表達壹種委婉的語氣.