人教版七年级上册《英语》Units 4-6 语法(共23张PPT)ppt课件.pptx

1、一、祈使句(Unit 4)祈使句常用来表示请求、命令、劝说、号召、警告等。祈使句的主语一般是第二人称you，但往往省略，句末通常用句号或感叹号。有时为了表示委婉的语气，可在句首或句尾加上please。肯定式:通常以动词原形开头。如：Come here on time,please!Please be happy!Lets do our homework.Let her read this book.否定式:1.Dont+动词原形。如：Dont swim in this river.Dont be late for class!Dont let these children play in th

2、e street.2.Lets/Let sb.+not+动词原形。如：Lets not stay here for a long time.Let me not bother you too much.温馨提示：“No+动词-ing形式/可数名词的复数形式”可表示“禁止做某事”。如：No drinking!No photos!“祈使句+and/or+分句”结构中，祈使句具有条件句的含义。如：Push the door hard(,)and it will open.=If you push the door hard,it will open.二、现在进行时(Unit 6)1.现在进行时的谓语

3、部分 be(am/is/are)+动词-ing形式2.现在进行时的用法1)现在进行时表示现在(说话瞬间)正在进行或发生的动作。如：What is your father doing?He is reading a newspaper.2)现在进行时表示当前一段时间内的活动或现阶段正在进行的动作。如：Those students are working very hard this term.3)表示位置移动的动词(如arrive,come,go,leave,start,fly等)常用现在进行时表示将要发生的动作。如：The train is leaving in a minute.4)现在进行

4、时与always,usually等词连用时，表示反复出现的或习惯性的动作，含有批评或表扬等感情色彩。如：We all dont like John because he is always telling lies.3.现在进行时的标志词 now,these days,at present,look,listen等。1.Please _ here earlier！We dont want to miss the last bus to the library.（2018 吉林）A.arrive B to arrive C.arriving2.Life is like a journey._ a

5、head,and you will see a lot more beautiful sceneries (风景).（2018 贵州黔南）A.PlanB.To plan C.PlanningD.PlansAA3._ to turn off all the lights when you go out.(2018 湖南湘潭)A.Remember B.To remember C.Remembering4.Please _ the rubbish into different litter bins according to the signs.（2018 上海中考)A.puts B.put C.p

6、utting D.to putaAB5._ me a chance and Ill bring you a surprise.(2018 重庆A)A.Give B.Giving C.Gives D.To give6.-Mom,can I play computer games this evening?-_ your homework first,and then well talk about it（2018 四川凉山）A.Finishing B.Finish C.To finishD.FinishedAB7.Could you help me clean the floor,Bob?Wai

7、t a moment.I _ for some information about the World Cup.(2018 山东莱芜)A.search B.have searched C.am searching D.was searching C8.Tom is not here.He _ in the health club.(2018 辽宁抚顺)A.is exercising B.was exercising C.exercises D.exercised9.Kitty,Im busy cooking.Can you give me a hand?Mum,just wait a mome

8、nt.I _ my bed now.（2018 广西百色）A.make B.will make C.am making D.making A C 10.“Tom,would you please take out the rubbish?”“Just a minute,mom.I _ a phone call.”（2018 贵州贵阳）A.make B.makes C.am making11.I cant find David.Where is he?He _ for tomorrows competition at home.（2018 新疆阜康米泉）A.prepares B.is prepa

9、ring C.has prepared D.preparedBC 12.May I use your computer?Sorry.I _ on it.（2018 海南中考）A.work B.am working C.have worked13.More and more foreign students begin to learn Chinese,and many of them _ Chinese better and better now.(2018 湖北黄石)A.are spoken B.spoke C.have spoken D.are speakingB D 14.Sam,let

10、s go to the cinema.Theres a new movie called Avengers III(复仇 者联盟3).Not now.I _ my brother David with his English.(2018 湖北十堰)A.help B.helped C.am helping D.have helpedC 15.What is Bill doing right now?He _ soccer.He _ soccer every Saturday.(2018 湖南湘西)A.plays;plays B.plays;is playing C.is playing;play

11、s16.Look!They _ basketball on the playground.（2018 广西桂林）A.play B.plays C.are playingC C 17.Honey,where are you?I _.Just let me put on my shoes.(2018 河南中考)A.come B.came C.am coming D.have come18.I cant find Jimmy.Where is he?He _ in the garden at the moment.(2018 四川宜宾中考)A.works B.will work C.is worki

12、ngCC 19.Listen!Mr.Black _ a talk on robots in the hall.（2018 重庆B卷）A.gives B.is giving C.will gave D.gave20.Where is Jim?Look!He _ under the tree.(2018 湖南邵阳)A.is standingB.stoodC.stands B A 21.Slow down!Someone _ the road.Easy.I will.(2018 湖南永州中考)A.has crossed B.was crossing C.is crossingC 根据汉语意思完成英语

13、句子。1.让我们齐心协力实现中国梦！Lets _ _ to achieve Chinese Dream.(2017 青海西宁)2.请认真对待老师所说的话。Please _ what the teacher said _.(2017 四川达州)3.孩子们高兴地在那儿互相扔雪球。The children are happily _ snowballs _ each other over there.(2017 四川达州)pull together take seriously throwing to4.如今一些古镇正在失去它们的地方特色。Now,some old towns _.(2017 江苏无锡)5.离开时不要任由水龙头一直开着。_.(2017 江苏常州)are losing their local colors Dont leave the tap running when you leave