江蘇省沭陽縣銀河學(xué)校七年級英語下冊《Unit 6 Pets Grammar》課件 牛津版

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1、GrammarUnit 6 Pets祈使句是表示請求、給予命令或指祈使句是表示請求、給予命令或指示的句子，它的主語是示的句子，它的主語是you（聽話（聽話者），通常省略；把后面的謂語動者），通常省略；把后面的謂語動詞置于句首，并且謂語動詞一律用詞置于句首，并且謂語動詞一律用原形。原形。一、祈使句（一、祈使句（Imperative sentence）1) 祈使句的肯定形式祈使句的肯定形式各種動詞原形各種動詞原形 + 賓語賓語/表語表語/不加。如：不加。如： Stand up, please. Pass it to me. Be quiet. Be polite! / Dont be rude!

2、Look out, please. 2) 祈使句的否定形式祈使句的否定形式Do not / Dont + 謂語動詞原形，如：謂語動詞原形，如： Dont open the door, please.Dont sit down. Please dont be late again. please可放句首或句尾，不影響動可放句首或句尾，不影響動 詞和整句話。詞和整句話。溫馨提示溫馨提示 表示禁止時，尤其是標(biāo)語等也可表示禁止時，尤其是標(biāo)語等也可用用“No + 名詞名詞 動詞動詞-ing”來表示。來表示。如：如： No photos. 禁止拍照。禁止拍照。 No smoking! 禁止吸煙！禁止吸煙！

3、 No parking! 禁止停車！禁止停車！二、情態(tài)動詞二、情態(tài)動詞should和和mustshould和和must作為情態(tài)動詞，都可作為情態(tài)動詞，都可表表“建議建議”，但是表示的程度不同。，但是表示的程度不同。1) should用來表示用來表示“勸告勸告”或或“建議建議”，意為意為“應(yīng)當(dāng)；應(yīng)該應(yīng)當(dāng)；應(yīng)該”，其否定形式為，其否定形式為 should not 或或shouldnt，語氣比較委婉。，語氣比較委婉。如：如：He should visit Mr Green. 他應(yīng)該拜訪格林先生。他應(yīng)該拜訪格林先生。We should put on warm clothes on such cold

4、days. 在這樣的冷天我們應(yīng)該穿暖和的衣服。在這樣的冷天我們應(yīng)該穿暖和的衣服。He should not / shouldnt go to school late. 他不應(yīng)該上學(xué)遲到。他不應(yīng)該上學(xué)遲到。You should not / shouldnt wash dresses made of silk in hot water. 你不該在熱水里洗絲綢做的衣服。你不該在熱水里洗絲綢做的衣服。2) must用來表示堅(jiān)定的建議，意為用來表示堅(jiān)定的建議，意為“必必須，一定須，一定”，其否定形式為，其否定形式為must not 或或 mustnt，表示，表示“不可以不可以”“”“不許不許”。如：。如

5、：You must eat breakfast on time every day. 你必須每天按時吃早飯。你必須每天按時吃早飯。 Wilson must hand in his paper tomorrow. 威爾遜明天必須交論文。威爾遜明天必須交論文。Doctors say you must not / mustnt eat too much sweet. 醫(yī)生說你一定不能吃太多的糖果。醫(yī)生說你一定不能吃太多的糖果。 You mustnt smoke here. 你不可以在這里吸煙。你不可以在這里吸煙。 1. Dont play games on the street. You _ pla

6、y games on the street.2. It is good to give seats to the elderly on the bus. You _ give seats to the elderly on the bus.3. Its wrong to play a trick on others. You _ play a trick on others.PracticeI.寫出下列各句的同義句，每空詞數(shù)不限。寫出下列各句的同義句，每空詞數(shù)不限。should notshouldshould not4. It is good to water young trees ever

7、y day. You _ water young trees every day.5. Keep the door closed, please. _ the door, please. 6. Please keep the bowls clean today. Please _ the bowls today.7. He doesnt know how he should do it. He doesnt know how _ it.shouldClose / Dont opencleanto do8. His dog barks when it hears the telephone ri

8、ng. His dog barks when the telephone _.9. Walk the dog at 6.30 a.m. _ the dog _ at 6.30 a.m.10. I cant go out with you because I have to look after my mother. I cant go out with you because I have to _ my mother.ringsfor a walktake care ofTakeII. 連詞成句。連詞成句。1. clean, twice, the, week, cage, must, we,

9、 a _?2. should, take, of, your, care, pet, you, good_.3. must, too, not, give, your, much, money, child, you_.Must we clean the cage twice a weekYou should take good care of your petYou must not give your child too much money4. brush, every, fur, should, day, Suzy, her, cats_?5. the, frighten, not,

10、girl, do, little_.6. day, every, English, her, teach_.7. feed, beside, his, table, dog, the, should, Jim_?Should Suzy brush her cats fur every dayDo not frighten the little girlTeach her English every dayShould Jim feed his dog beside the table8. your, look, you, must, pet, after, well_.9. too, to, important, night, eat, not, it, late, is, at_.10. your, bring, pet, not, school, to, must, you_.You must look after your pet wellIt is important not to eat too late at nightYou must not bring your pet to school