新概念2A語(yǔ)法：祈使句

1、精選優(yōu)質(zhì)文檔-傾情為你奉上新概念英語(yǔ)青少版2A語(yǔ)法：祈使句 祈使句是表示請(qǐng)求、命令、勸告、祝愿或建議的句子。祈使句的主語(yǔ)一般為第二人稱，但往往省去不用。同學(xué)們?cè)趯W(xué)習(xí)祈使句時(shí)應(yīng)注意以下幾點(diǎn)：一、祈使句謂語(yǔ)用何動(dòng)詞形式英語(yǔ)祈使句的謂語(yǔ)總是用動(dòng)詞原形。如：Be quiet! 別說(shuō)話!Come earlier next time. 下次早點(diǎn)來(lái)。Have a good time. 愿你玩得痛快。Go and tell her. 去告訴她吧。注：有時(shí)為了加強(qiáng)語(yǔ)氣，可在動(dòng)詞前加do。如：Do be careful. 務(wù)請(qǐng)小心。Do come on time. 務(wù)必請(qǐng)準(zhǔn)時(shí)來(lái)。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(dòng)詞原形前加dont：Dont be late. 不要遲到。Dont speak so loud. 別這么大聲說(shuō)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(lái)。三、與please連用以使語(yǔ)氣委婉為使語(yǔ)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(hào))或句末(其前通常用逗號(hào))。如：Please dont get angry. 請(qǐng)不要生氣。Please drive mo

3、re slowly. 請(qǐng)開(kāi)得慢一點(diǎn)。Please cut me a piece of cake. 請(qǐng)給我切一塊蛋糕。Please try to be quiet. 請(qǐng)?jiān)O(shè)法保持安靜。Please repeat what youve just said. 請(qǐng)把你剛才說(shuō)的話重復(fù)一遍。四、關(guān)于以let開(kāi)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(lái)試一試。Let me show you how to do it. 我來(lái)告訴你怎樣做。Let every man do his best. 讓每個(gè)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(qǐng)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