人教版七年级上册《英语》Units 1-3 语法(共25张PPT)ppt课件.pptx

1、情态动词can表示能力(Unit 1)情态动词表示说话人对所说动作的观点。情态动词一般没有人称和数的变化；它不能单独作谓语，必须和动词原形共同构成谓语。一、用法can意为“能；会”，表示某人在某方面的能力。can既可表示现在的能力，也可表示将来的能力。它没有人称和数的变化，其后跟动词原形。二、句式肯定句式为“主语+can+动词原形(+其他).”。否定句式为“主语+cannot/cant+动词原形(+其他)。一般疑问句式为“Can+主语+动词原形(+其他)?”，其肯定答语为“Yes,主语(人称代词)+can.”；否定答语为“No,主语(人称代词)+cant.”。如：Can you speak E

2、nglish?Yes,I/we can./No,I/we cant.Can he/she/Jane/they sing?Yes,he/she/they can./No,he/she/they cant.特殊疑问句式为“疑问词(不作主语)+can+主语+动词原形(+其他)?”。如：What can you/he/she/Jane/they do?根据括号内的要求完成下列各题。1)Bob can play baseball.(改为一般疑问句并作肯定回答)_ Bob _ baseball?_,_.2)The boy can dance.(对划线部分提问)_ can the boy _?3)Jill

3、can play soccer.(改为否定句)Jill _ soccer.Can playYes he can What do cant play 特殊疑问句(Units 2&3)1.以疑问词开头，对句中某一成分提问的句子叫特殊疑问句。不同的疑问词用来询问不同的对象。疑问词包括疑问代词和疑问副词。疑问词提问对象疑问词提问对象what动作how much不可数名词的数量、价格what class班级how far距离what grade年级how heavy重量what day 星期几how wide 宽度what time时间点how tall/high身高/高度疑问词提问对象疑问词提问对象w

4、hat color颜色how old年龄what language语言when时间how方式、身体状况where地点how long时间段which一个范围内的人或物进行选择疑问词提问对象疑问词提问对象how often频率who人(作主语或宾语)，作宾语时还可用whomhow soon时间(in+时间段)whose所属关系how many可数名词的数量why原因2.对特殊疑问句进行回答时不能使用yes或no，而要对所询问的对象有针对性地回答。3.特殊疑问句的一般结构是“疑问词(不作主语)+一般疑问句”，但对主语或修饰主语的定语提问时，要用陈述句语序。如：How much are these

5、pants?How long have you studied it?Who is drawing?Whose brother likes dancing?1.Yuan Longping,a famous Chinese scientist,is now doing research on sea rice.If farmers _ start planting rice in salty water,Chinas food supply will surely rise.(2018 广东省)A.can B.cant C.must D.mustnt A2.Its too hot._ I swi

6、m in the lake?No,you _.Thats too dangerous!(2018 湖北黄石)A.Should;cantB.Need;mustnt C.Must;needntD.Could;cant3.Look,little Jim is swimming so fast.I _ believe my eyes.(2018 江苏盐城)A.shouldnt B.cant C.mustnt D.needntDB4._ I swim here?Im sorry.Children _ swim alone here.Its very dangerous.(2018 山东滨州)A.Must

7、;cant B.May;must C.Can;mustnt D.Cant;can5.May I watch TV,Dad?When your homework is finished,you _.(2018 安徽)A.should B.can C.must D.needCB6.How amazing this robot is!Wow,it has video cameras in its eyes,so it _“see”and interact with people.(2018 江苏连云港)A.may B.can C.must D.should7.Could you please spe

8、ak a little louder?I _ hear you very well.(2018 山东临沂)A.cant B.mustnt C.shouldnt D.needntBA8._ have you talked with your friends on WeChat?Since I finished my homework.(2018 山东莱芜)A.How far B.How often C.How soon D.How longD9._ students are there in your class?Fifty.(2018 广西梧州)A.How many B.How much C.

9、How long D.How far10.I love these hair clips._ are they?They are ten yuan.(2018 江苏徐州)A.How many B.How much C.How old D.How heavyAB11.Joe,_ do you clean your house?Three times a week.(2018 辽宁本溪)A.how longB.how much C.how oftenD.how far12._ do you brush your teeth?Twice or more a day.（2018 辽宁沈阳）A.How

10、soon B.How far C.How long D.How oftenCD13._ times have you visited Gansu Science Museum?Only once.（2018 甘肃兰州）A.How oftenB.How many C.How longD.How soon14._ do you like wolf warriors?Because its exciting.（2018 黑龙江绥化）A.Why B.What C.HowBA15.Hi,Lucy._ is your birthday?My birthday is on May 2nd.（2018 云南昆

11、明）A.What B.Why C.When D.Where16._ has the 2018 World Cup been on?For about two weeks.（2018 海南中考）A.How soon B.How far C.How longCC17._ does she live?She lives in the same neighborhood as me.（2018 四川自贡）A.What B.Where C.Which18._ do you usually go to school,Mary?By bike.（2018 北京中考）A.When B.How C.Where

12、D.WhyBB19._ does Liu Chuanjian do?Hes a pilot of Sichuan Airlines.Hes a hero!(2018 福建A卷)A.What B.Where C.WhenA对划线部分进行提问，每空一词(含缩略形式)。1.That amusement park has lots of tourists during the holiday._ _ that amusement park have lots of tourists?(2017 上海)2.They didnt arrive on time because they got up late._ _ they arrive on time?(2017 重庆A卷)When doesWhy didnt3.The AI technology will make a difference to school education in the future._ will the AI technology _ in the future?(2017 新疆乌鲁木齐)What do