《湖南省婁底市雙峰縣樹(shù)人學(xué)校八年級(jí)英語(yǔ)上冊(cè) Unit 4 Do it yourself Grammar課件1 （新版）牛津版》由會(huì)員分享，可在線(xiàn)閱讀，更多相關(guān)《湖南省婁底市雙峰縣樹(shù)人學(xué)校八年級(jí)英語(yǔ)上冊(cè) Unit 4 Do it yourself Grammar課件1 （新版）牛津版（34頁(yè)珍藏版）》請(qǐng)?jiān)谘b配圖網(wǎng)上搜索。

1、GrammarPut up a picture on the wall.Put up a shelf on the wall.We start a sentence with the base form of a verb when we want to tell people what to do. Dont swim here.Dont park your bike here.We add dont in front of the verb when we want to tell people not to do something.1. 祈使句的概念祈使句的概念 祈使句表示請(qǐng)求、命令等

2、。它的主語(yǔ)是祈使句表示請(qǐng)求、命令等。它的主語(yǔ)是you（聽(tīng)話(huà)人），通常不說(shuō)出。祈使句肯（聽(tīng)話(huà)人），通常不說(shuō)出。祈使句肯定結(jié)構(gòu)中的謂語(yǔ)動(dòng)詞一律用動(dòng)詞原形。祈定結(jié)構(gòu)中的謂語(yǔ)動(dòng)詞一律用動(dòng)詞原形。祈使句末用驚嘆號(hào)或句號(hào)，句子用降調(diào)。使句末用驚嘆號(hào)或句號(hào)，句子用降調(diào)。 2. 祈使句的結(jié)構(gòu)祈使句的結(jié)構(gòu) 1) 祈使句的肯定結(jié)構(gòu)祈使句的肯定結(jié)構(gòu) Do型（以行為動(dòng)詞原形開(kāi)頭），例如：型（以行為動(dòng)詞原形開(kāi)頭），例如： Sit down!坐下！坐下！ Stand up!起立！起立！ Be型（以型（以be開(kāi)頭），例如：開(kāi)頭），例如： Be quiet!安靜！安靜！ Be careful！小心！小心！ Let型（以型（以

3、let開(kāi)頭），例如：開(kāi)頭），例如： Let me try. 讓我試試看。讓我試試看。 Lets look at the map. 讓我們看看地圖。讓我們看看地圖。 lets是是let us的簡(jiǎn)略式。的簡(jiǎn)略式。 表示請(qǐng)求、勸告的祈使句還常常在句前表示請(qǐng)求、勸告的祈使句還常常在句前或句末加上或句末加上please, 構(gòu)成句式：構(gòu)成句式：Please 或或 , please. 以使語(yǔ)氣更加緩和或客氣。以使語(yǔ)氣更加緩和或客氣。例如：例如： Please stand up. 或或 Stand up, please. 請(qǐng)站起來(lái)。請(qǐng)站起來(lái)。 Please have a rest. 或或Have a rest

4、, please. 請(qǐng)休息一下。請(qǐng)休息一下。 2) 祈使句的否定結(jié)構(gòu)，一律在肯定結(jié)構(gòu)祈使句的否定結(jié)構(gòu)，一律在肯定結(jié)構(gòu)前加前加 Do not (Dont)。例如：。例如： Dont go there, please. 請(qǐng)別去那兒。請(qǐng)別去那兒。Dont be late for class! 上課別遲到！上課別遲到！Dont let him in. 不要讓他進(jìn)來(lái)。不要讓他進(jìn)來(lái)。 Park your bike here.Please go slowly.Dont smoke here.Dont fish here.Be quiet, please.Dont make any noise. How to

5、 make cardsHow to make cards1. Cut out pieces of card with a pair of scissors.2. Write some words or a sentence on each card. How to make cardsHow to make cards3. Draw a picture about the words or sentence on the other side of the card.4. Look at the picture and try to say what is on the other side.

6、Please dont give up. Keep trying and you will find you can remember things better.1. Please know a little about DIY.You should know a little about DIY.We use should and had better when giving advice and telling people what is the best or right thing to do.You had better know a little about DIY.2. Pl

7、ease put in a brighter light in the room.You should put in a brighter light in the room.We use should and had better when giving advice and telling people what is the best or right thing to do.You had better put in a brighter light in the room.3. Dont hit the pipe.You should not/ shouldnt hit the pi

8、pe.You had better not hit the pipe.We use should and had better when giving advice and telling people what is the best or right thing to do.4. Dont paint the whole room blue.You should not/shouldnt paint the whole room blue.You had better not paint the whole room blue.We use should and had better wh

9、en giving advice and telling people what is the best or right thing to do.當(dāng)我們給他人提建議時(shí)，可以用當(dāng)我們給他人提建議時(shí)，可以用had better和和should，表示，表示“最好最好”或或“應(yīng)該應(yīng)該”做某事，做某事， had better的語(yǔ)氣比的語(yǔ)氣比should強(qiáng)一強(qiáng)一些。些。You had better refrigerate the beer before drinking it. 喝啤酒前你最好先把它冷凍一下。喝啤酒前你最好先把它冷凍一下。You should exercise more. 你應(yīng)該多鍛煉。

10、你應(yīng)該多鍛煉。had better (常簡(jiǎn)略為常簡(jiǎn)略為d better)，是一固定，是一固定詞組，后面必須跟動(dòng)詞原形，沒(méi)有人稱(chēng)和詞組，后面必須跟動(dòng)詞原形，沒(méi)有人稱(chēng)和數(shù)的變化。構(gòu)成：數(shù)的變化。構(gòu)成：had better do sth. 句型。句型。Youd better go to hospital at once. 你最好立即去醫(yī)院看病。你最好立即去醫(yī)院看病。 Tom, youd better go there today. 湯姆，你最好今天去那兒。湯姆，你最好今天去那兒。had better 的否定式是將的否定式是將not直接放在直接放在had better的后面。的后面。 You had

11、better not miss the last bus. 你最好不要錯(cuò)過(guò)末班公共汽車(chē)。你最好不要錯(cuò)過(guò)末班公共汽車(chē)。 should 后面也要跟動(dòng)詞原形，且沒(méi)有人后面也要跟動(dòng)詞原形，且沒(méi)有人稱(chēng)和數(shù)的變化。稱(chēng)和數(shù)的變化。You should stop smoking. 你應(yīng)該戒煙。你應(yīng)該戒煙。should 的否定式是的否定式是should not/shouldnt。You shouldnt drink and drive. 你不應(yīng)該喝酒后開(kāi)車(chē)。你不應(yīng)該喝酒后開(kāi)車(chē)。 DIY advice Read the advice and make sentences with should (not) or

12、had better (not).begin your work without reading them You shouldnt begin your work without reading them. You had better not begin your work without reading them. DIY advice Read the advice and make sentences with should (not) or had better (not).join a DIY club to learn more about it You should join

13、 a DIY club to learn more about it. You had better join a DIY club to learn more about it. DIY advice Read the advice and make sentences with should (not) or had better (not). be patient You should be patient. You had better be patient. DIY advice Read the advice and make sentences with should (not)

14、 or had better (not). buy some to learn more about it You should buy some to learn more about it. You had better buy some to learn more about it. DIY advice Read the advice and make sentences with should (not) or had better (not). play with them when you do DIY jobs You should not play with them whe

15、n you do DIY jobs. You had better not play with them when you do DIY jobs.1.You should/ had better buy some to learn more about it.2. You should/ had better join a DIY club to learn more about it.3.You should not/ had better not begin your work without reading them.4.You should not/ had better not p

16、lay with them when you do DIY jobs.5.You should/ had better be patient.1. 當(dāng)我們向他人發(fā)出命令、提出要求或建當(dāng)我們向他人發(fā)出命令、提出要求或建 議時(shí)，常使用祈使句。其主語(yǔ)通常不明議時(shí)，常使用祈使句。其主語(yǔ)通常不明 確表示出來(lái)。其否定形式是在動(dòng)詞原形確表示出來(lái)。其否定形式是在動(dòng)詞原形 前加前加do not/dont。為了表示客氣和禮。為了表示客氣和禮 貌，可以加上貌，可以加上please。2. 當(dāng)我們給他人提建議時(shí)，可以用當(dāng)我們給他人提建議時(shí)，可以用had better和和should，表示，表示“最好最好”或或“應(yīng)該應(yīng)該

17、”做做 某事。否定形式是某事。否定形式是had better not和和 should not/shouldnt。I. 單項(xiàng)選擇。單項(xiàng)選擇。1. The TV is too loud. Please _. A. turn it down B. to turn it down C. turn down it D. to turn down it2. _ late again, Bill!A. Dont to be B. Dont be C. Not be D. Be not3. _ cross the road until the traffic lights turn green. A. No

18、t B. Wont C. Doesnt D. Dont4. _ me the truth, or Ill be angry.A. Telling B. To tell C. Told D. TellII. 句型轉(zhuǎn)換。句型轉(zhuǎn)換。1. Will you please read it again more slowly? (改為祈使句改為祈使句)_ again more slowly, please.2. If you dont listen to me, Ill go. (改為同義句改為同義句) _ me, or Ill go.3. The teachers often tell the stud

19、ents not to be careless. (改為祈使句改為祈使句)_ careless, please.4. Please sit next to Nancy. (改為否定句改為否定句)_ next to Nancy.Read it Listen to Dont be Dont sitIII. 完成句子。完成句子。1. 你應(yīng)該在南京換火車(chē)。你應(yīng)該在南京換火車(chē)。 _ change trains at Nanjing.2. 你最好在下雨前回家。你最好在下雨前回家。 _ before the rain starts. 3. 現(xiàn)在你最好別打棒球了?，F(xiàn)在你最好別打棒球了。 _ baseball now.4. 不要把金魚(yú)放在陽(yáng)光下。不要把金魚(yú)放在陽(yáng)光下。 _ the goldfish in the sun.You shouldYoud better go homeYou had better not playDont put1. Review the Grammar and make some sentences with should (not) and had better (not).2. Finish the Exercises in the workbook.Homework