四年级下册英语课件-Unit 3 Weather A∣人教（PEP）（2014秋） (共16张PPT).ppt

1、Unit3WeatherIntroduceIts time for breakfast.该吃早饭了。Lets sing and dance.咱们唱歌跳舞吧。Wordscan kn情态动词，意为“能，可以，能够”，但不能独立存在，其后必须加动词原形一起构成谓语。情态动词can没有人称和数的变化。eg：Jim can ride,but I cant.吉姆会骑单车,但我不会。Can I have some tea,please?请问我可以喝一杯茶吗？小练习：单项选择。-_ you sing and dance?-No,I _.A.do,dont B.Can,cant C.Are,arentBWord

2、soutside autsaid副词，意为“外边”，放在动词后或句子的最后；介词使用，意为“在之外”，基本结构为outside+地点。eg：Its hot outside.外边很热。小练习：翻译下列词组。play outside _ outside the door _在外边玩门外Expressions Have some lunch，Mike.吃些午饭吧，Mike。用于表达命令、请求、劝告、警告、禁止、建议等句子叫做祈使句。eg：Go and wash your hands.去洗你的手。（表达命令）Be quiet,please.=Please be quiet.请安静。（表达请求或命令）小

3、练习：请你把下列句子翻译成汉语。1.Please water the flowers now!_ 2.Lets sing and dance with him._现在请你把花浇了！咱们和他一起唱歌跳舞吧。ExpressionsCan I have some soup?我可以喝些汤吗？some：用作形容词，多用于肯定句中。eg：Some children like playing in the park.一些孩子喜欢在公园里玩。Can I have some orange juice?我可以喝些橙汁吗？小练习：单项选择。-Can I have _ water now?-No，you cant h

4、ave _.But you may drink some milk.A.some,any B.any,some C.any,anAExpressionsBe careful!Its very hot.小心点，很热。这是一个由系动词be引导的祈使句，也是常见类型的祈使句之一。“careful”是形容词，意为“细心的”eg：He is a careful boy.他是一个细心的男孩。Please be careful.请细心（当心）点！小练习：单项选择。She is a _ girl.She can do the work very well.A.nice B.careful C.beautifu

5、lBDialogueMum,what time is it?妈妈，几点了？Its 11:00.十一点了。Can I go outside now?我现在能到外面去吗？No,you cant.Its cold outside.不，你不能。外面很冷。DialogueHave some lunch,Mike.麦克，吃些午饭吧。OK.Can I have some soup?好的。我能喝些汤吗？Yes,you can.是的，你可以。Be careful!Its very hot.小心！很烫。Expand祈使句的常见用法1.含义：祈使句表请求、命令、叮嘱、邀请、劝告、号召、警告等的句子。在祈使句中，通常

6、省略第二人称主语you，以动词原形开头。2、类型：（1）V型：动词原形+其他 eg：Hurry up！（2）Be型：Be+形容词eg：Cindy,be careful on the road,Cindy.（3）Let 型：Let sb+其他eg：Lets go to school now.Expand3、注意：表示委婉、客气时，常在句首加please，如果加在句尾要用逗号隔开；祈使句的否定形式：一般在句首加dont；4、祈使句用法口诀祈使句，祈使句，请求命令或建议；主语是you常省去，动词原形开头记；否定形式加Dont，是“不要”之意；想要客气please,句首句末没关系。Summarycan

7、outsideCan I have some soup?Be careful！Its very hot.Exercise将下列句子组成一个对话。将1-4四个序号填入括号里。()Oh dear!Its time to go to bed.()Its 9 oclock.()Yes.Lets go.()What time is it,Jim?3241Exercise单项选择。()1._ some lunch,Mike.A.have B.For C.Have()2.-_you help me now?-Yes,_can.A.Can,I B.Can,We C.Do,ICAExercise()3.Today he cant _ home.A.go B.to go C.go to ()4.-Can I have _soup?-OK.Here you are.A.some B.any C.a()5.-_ cold outside?-_,its hot.A.It is,No B.Is it,Yes C.Is it,NoCAAHomeworkDescribe the weather.