1、Unit 4 Do it yourself,Grammar A,Guessing Game,Dont smoke!No smoking!,Guessing Game,Dont play football!,Turn left.,Guessing Game,Turn right!,Guessing Game,Guessing Game,Dont park your car!,Guessing Game,Dont eat!,Guessing Game,Dont pick the flowers!,Be quiet,please.,Dont make any noise.,Guessing Game
2、,Go upstairs!,Guessing Game,Guessing Game,Go downstairs!,Read and observe(观察),Turn left.,Turn right!,Please go upstairs!,Go downstairs!,Be quiet,please.,Dont smoke!,Dont play football!,Dont park your car!,Please dont eat!,Dont pick the flowers!,1.祈使句(Imperative Sentence)的概念 祈使句表示请求、命令等。它的主语是you（听话人）
3、，通常不说出。祈使句肯定结构中的谓语动词一律用动词原形。祈使句末用惊叹号或句号。2.祈使句的结构 1)祈使句的肯定结构 Do型（以行为动词原形开头），例如：Sitdown!坐下！Standup!起立！,Be型（以be开头），例如：Bequiet!安静！Becareful！小心！Let型（let sb do sth），例如：Letmetry.让我试试看。Letslookatthemap.让我们看看地图。lets是letus的简略式。,2)祈使句的否定结构，一律在肯定结构前加Donot(Dont)。例如：Dontgothere,please.请别去那儿。Dontbelateforclass!上课别
4、迟到！Dontlethimin.不要让他进来。,有些可以用No开头用来表示禁止性的祈使句 如：No smoking!禁止吸烟 No fishing!禁止钓鱼,表示请求、劝告的祈使句还常常在句前或句末加上please,构成句式：Please 或,please.以使语气更加缓和或客气。例如：Pleasestandup.Standup,please.请站起来。Pleasehavearest.Havearest,please.请休息一下。,祈使句,祈使句,无主语,只用动词原形就可以.表示请求或命令,加上please表客气。如果变成否定句，Dont开头是规律。,Millie is teaching he
5、r classmates how to make cards to help them remember things better.Look at the pictures and help Millie complete the instruction.,How to make cards,_ out pieces of card with a pair of scissors.,Cut,_ some words or a sentence on each card.,Write,_ a picture about the words or sentence on the other si
6、de of the card.,Draw,_ at the picture and _ to remember what is on the other side.,Look,try,Please _(not)up._ trying,and you will find you can remember things better.,dont give,Keep,中考链接：,Kate,_ your homework here tomorrow.A.bring B.brings C.to bring D.bringing,有时为了明确的向对方提出请求或发出命令，可加人物姓名，但姓名要与句子隔开。,
7、Grammar B,e.g.You should know a little about DIY.You should not put so many books on the shelf.Your watch is broken.You had better buy a new one.You had better not be late for school.,当我们给他人提建议时，可以用had better和should，表示“最好”或“应该”做某事，had better的语气比should强一些。You had better turn off the lights before lea
8、ving the classroom.离开教室前你最好先把灯关了。You should exercise more.你应该多锻炼。,had better(常简略为d better)，是一固定词组，后面必须跟动词原形。构成：had better do sth.句型。Youd better go to hospital at once.你最好立即去医院看病。Tom,youd better go there today.汤姆，你最好今天去那儿。had better 的否定式是将not直接放在had better的后面(had better not do sth)。You had better not
9、 miss the last bus.你最好不要错过末班公共汽车。,should 后面也要跟动词原形，且没有人称和数的变化。You should stop smoking.你应该戒烟。should 的否定式是should not/shouldnt。You shouldnt drink and drive.你不应该喝酒后开车。,DIY advice,Suzy is giving DIY advice to her classmates.Read the advice below.Help Suzy make sentences with should(not)or had better(not)
10、.,a begin your work without reading them b join a DIY club to learn more about it c be patient d buy some to learn more about it e play with them when you do DIY jobs,1.There are many useful books about DIY.,You should/had better buy some to learn more about it.,2.DIY is not easy.,You should/had bet
11、ter join a DIY club to learn more about it.,You shouldnt/had better not begin your work without reading them.,3.Instructions are important.,You should/had better be careful when you use them.,4.Scissors can be dangerous.,You should/had better be patient.,5.Sometimes itll take time to do a DIY job.,o
12、n the road,in class,1.Jim,_ me a hand.A.gives B.is giving C.will give D.give2._ careful,Jenny!There is a tree in front of you.A.Am B./C.Be D.Was3.Lets _ our time.A.not waste B.no wasting C.not to waste D.no waste4._ higher,and you will see the house.OK.A.If you stand B.To stand C.When you stand D.St
13、and,Exercises:,5.Please _ do it.A.he B.let him C.let he D.him6._ let anyone open the door.A.Dont B.Will C.Not D.No7.Dont be late again.Sorry,_.A.I may B.I must C.I will D.I wont8.Call me when you get home.OK,_.A.I must B.I can C.I will D.I may,Exercises:,II.完成句子。,1.你应该在南京换火车。_ change trains at Nanjing.2.你最好在下雨前回家。_ before the rain starts.3.现在你最好别打棒球了。_ baseball now.4.不要把金鱼放在阳光下。_ the goldfish in the sun.,You should,Youd better go home,You had better not play,Dont put,1.Try to give instructions.2.Try to use should(not)and had better(not)to give advice.,Homework,
