新概念2A語法：祈使句

1、精選優(yōu)質(zhì)文檔-傾情為你奉上新概念英語青少版2A語法：祈使句 祈使句是表示請求、命令、勸告、祝愿或建議的句子。祈使句的主語一般為第二人稱，但往往省去不用。同學(xué)們在學(xué)習(xí)祈使句時應(yīng)注意以下幾點：一、祈使句謂語用何動詞形式英語祈使句的謂語總是用動詞原形。如：Be quiet! 別說話!Come earlier next time. 下次早點來。Have a good time. 愿你玩得痛快。Go and tell her. 去告訴她吧。注：有時為了加強(qiáng)語氣，可在動詞前加do。如：Do be careful. 務(wù)請小心。Do come on time. 務(wù)必請準(zhǔn)時來。二、肯定祈使句如何變成否

2、定祈使句祈使句否定式的構(gòu)成方法是在動詞原形前加dont：Dont be late. 不要遲到。Dont speak so loud. 別這么大聲說話。Dont walk on the grass. 不要在草坪上走。Dont lose the key. 別把鑰匙丟了。Dont come unless I telephone. 除非我打電話，否則你別來。三、與please連用以使語氣委婉為使語氣委婉，通常將祈使句與please連用。Please可用于祈使句的句首(其后通常不用逗號)或句末(其前通常用逗號)。如：Please dont get angry. 請不要生氣。Please drive mo

3、re slowly. 請開得慢一點。Please cut me a piece of cake. 請給我切一塊蛋糕。Please try to be quiet. 請設(shè)法保持安靜。Please repeat what youve just said. 請把你剛才說的話重復(fù)一遍。四、關(guān)于以let開頭的祈使句Lets eat out tonight. 我們今晚出去吃飯吧。Let me have a try. 我來試一試。Let me show you how to do it. 我來告訴你怎樣做。Let every man do his best. 讓每個人人盡其才。 Let the meat c

4、ook slowly. 把肉用慢火燉。注意：這類祈使句的否定式有兩種形式。如：Lets not hurry. / Dont lets hurry. 我們不要太急。請完成以下習(xí)題：一、將以下祈使句改為否定式：1. Come here early. 2. Ask him. 3. Please wait for her. 4. Read the book carefully. 5. Sit under the tree, please. 二. 選擇填空 ( )1 .Her doctor said: “_ work so hard” A Stop B Dont C Cant D No ( )2. Sa

5、ndy, _ to be here at 8 oclock A is sure B is sure that C will be sure D be sure ( )3._ when you cross the road. A Do care B Care C Do be careful D To be careful ( )4. _him the secret, will you? A Dont tell B Not to tell C Not telling D No telling ( )5. _ in bed. Its bad for your eyes. A Not to read

6、B Dont read C Dont to read D Not read ( )6. _ Your child. Well look after him. A Not to worry about B Dont worry aboutC Not worry for D Dont worry with ( )7.They are very tired. Why _ have a rest? A not they B do not they C dont they D not to ( )8 -You look rather tired. _ stopping to have a rest? - All right. A Why not B How about C Why not to D why dont ( ) 9 _ tell a lie. A Hardly B Not C No D Never ( )10.Please _ look outside. Look at the blackboard. A not