英語祈使句的用法

1、精品祈使句1、定義：祈使句是用來表示 請求、 命令、勸說、號召、警告 等的句子。在祈使句中，通常省略第二人稱主 語 you , 以動詞原形 開頭。句末一般用句號；表示較強語氣時， 則用感嘆號。2、類型：1、V型：動詞原形+其他2、Be型：Be + 形容詞3、Let 型：Let sb + 其他4、No 型：No+ v-ing / n3、注意：表示委婉、客氣時，常加 please（可放句首，句末 用 逗號隔開）祈使句的否定形式：一般在句首加don ' tLet型的祈使句變否定句， 可在句首加 don ' t,或在 動詞原形前加not.4、祈使句用法口訣祈使句，祈使句，請求命令或建議

2、。主語是you常省去，動詞原形開頭記。-可編輯-精品否定形式加 Don t ， Let 否定有兩 種。想更客氣please, 句首句末沒關(guān)系。練習(xí)I. 用括號內(nèi)所給動詞的適當(dāng)形式填空。1. It s an important meet ing. (not,be )late.2. (not,make) any noise! Yourmother is sleeping.3. (not, speak) with your mouthfull of food and (be) polite.4. ( not, talk) and (read)aloud.5. (not,leave) your hom

3、ework fortomorrow, Larry.6. (look) out! A car is coming.7. (give) us ten years and just see what our country will be like.(not, let) the baby cry.9. Let s (not, say) anythingabout it.II. 選擇填空()1 .Her doctor said: “ work so hardA Stop B Don t C Can t D No()2. Cindy, to be here at 8 o clockA is sure B

4、 is sure that C will be sure D be sure ()3.when you cross the roadA Do care B CareC Be careful D To be careful()4. him the secret, will you ？A Don t tell B Not to tellC Not telling D No telling()5. in bed. It s bad for your eyes.A Not to read B Don t readC Don t to read D Not read()6. your chil d. We ll look after him.A Not to worry about aboutC Not worry forwith() 7. tell a lie.A Hardly B NotB Don t worryD Don t worryC No D Never( )8.Please