四年级下册英语课件-Unit 9 We're Taking Photos--现在进行时总结教科版（三起）(共15张PPT).ppt

Unit 9 Were Taking PhotosPresent Continuous Tense现在进行时总结现在进行时总结现在进行时主语主语 + am/is/are + doing (动词动词+ing)表示某人表示某人正在正在做某事的时候用现在做某事的时候用现在进行时。进行时。现在进行时怎么构成现在进行时怎么构成? ?什么时候用现在进行时什么时候用现在进行时? ? 主语主语be 动词动词 行为动词行为动词 (+ing) 这种时态的句子由两种动词组成。这种时态的句子由两种动词组成。 be-ing 直接在动词后面加直接在动词后面加ing。 goinggoingdo talk watch play read look doingtalkingwatchingplayingreadinglookingPractice 去去e再加再加ing。 comeingcominghave havingwrite writingride ridinglive livingdrive drivingmove movingPractice 以重读、以重读、“辅元辅辅元辅”结构结尾的动词需要结构结尾的动词需要双写最后一个字母再加双写最后一个字母再加-ing。swimmingswimmingjog joggingsit sittingdrop droppingrun runningget gettingput puttingPractice写出下列动词的现在分词写出下列动词的现在分词sleep invite chatsleep invite chatlook write swimlook write swimplay come runplay come runwait practice shopwait practice shopstudy seestudy seevisit lievisit lielearn tielearn tieingingingingingingining gingingining gingingingingingingingingingingingingl lyingyingt tyingyingtingtingmingmingningningpingping1.1.直接加直接加inging; 2. ; 2. 去去e e加加inging( (除除eeee字母组合字母组合); ); 3.3.双写加双写加inging; 4. ; 4. 改改ieie为为y y加加ingingbe-ingnot主语主语 be动词动词 行为动词行为动词 (+ing) ingnotNegative sentences 否定句否定句ingnot(isnt)ingnot(arent)Questions 一般疑问句一般疑问句 将将bebe动词放在句子开头成为一般疑问句。动词放在句子开头成为一般疑问句。Yes, she is. / No, she isnt.Yes, they are. / No, they arent.Cherry is riding a bicycle.Is Cherry riding a bicycle?They are cooking.Are they cooking?Questions 特殊疑问句特殊疑问句 Questions with question words: What are you doing? Why is the baby crying? When are the children leaving? Where are you going?e.g.1.直接加直接加 ing eg: look looking2.如果动词末尾有不发音的如果动词末尾有不发音的e，则去，则去e加加 -ing3.以动词闭音节结尾，且末尾只有一个辅音字母的，以动词闭音节结尾，且末尾只有一个辅音字母的，应双写此字母，再加应双写此字母，再加 ing。 eg: sit sitting 口诀教你学口诀教你学doing进行时很好记，进行时很好记，be加动词加动词-ing；直加双写去哑直加双写去哑e，分词构成须仔细；，分词构成须仔细；别说别说 be 无词义，主语和它最亲密；无词义，主语和它最亲密；变疑问变疑问 be 提前，否定提前，否定 not 再再 后添；后添；何时要用进行时何时要用进行时 look，listen，now标志。标志。 at present 目前；现在 at the moment 此刻；现在 right now 此刻；现在 now 现在e.g. I _ my homework now. (do)m/am doing1 You _ an English lesson. (have)2 The little boy _. (swim)3 Tony and Betty _ in the library. (read)4 The man _ a story. (write)5 I _ with my sister. (run)6 We _ tennis now. (play)7 The cat _ some milk right now. (drink) re/are havings/is swimmingre/are readings/is writingm/am runningre/are playings/is drinking