1、Unit 3 What subject do you like best?Lesson 16精通精通四年级下册四年级下册科学科学New words课课戏剧戏剧New wordsJust talkDo you study science?Yes,we do.And I like science best.Do you like English?Yes,I do.I like it best.Language pointsDo you study science?你们学习科学吗？你们学习科学吗？助动词助动词do用于实义动词前构成疑问句，若主语为第用于实义动词前构成疑问句，若主语为第三人称则三人称则
2、do换成换成does。肯定回答：肯定回答：Yes,I do./Yes,she/he does.否定回答：否定回答：No,I dont./No,she/he doesnt.Just read and writeDo you like drama?No,I dont.I like science.sciencedramaDo you like science?Yes,I do.Play rolesCan you write them?lesson课课 lesson与与class都有都有“课课”的意思，两者在表示的意思，两者在表示45分分钟的钟的“一节课一节课”时是同义词，一般可以相互换用。时是同义
3、词，一般可以相互换用。例句：今天我们有四节英语课。例句：今天我们有四节英语课。We have four English lessons(classes)today.Language points在以下情况下也有区别，两者不可换用：在以下情况下也有区别，两者不可换用：1)当表示当表示“第几课第几课”时，习惯上用时，习惯上用lesson而不用而不用class。例句：咱们读第一课吧。例句：咱们读第一课吧。Lets read the first lesson.2)如果说如果说“开始上课开始上课”，通常用，通常用class而不用而不用lesson。例句：上午例句：上午8点开始上课。点开始上课。Class
4、es begin at 8:00 in the morning.3)class还可以作还可以作“班级班级”，“同学们同学们”，“阶级阶级”讲，讲，而而lesson无此意。无此意。例句：我们学校有例句：我们学校有50个班级。个班级。Our school has fifty classes.Good morning,class!同学们，早上好同学们，早上好!4)lesson可以作可以作“功课功课”，“教训教训”讲，而讲，而class则不能。则不能。例句：我能帮你学习功课。例句：我能帮你学习功课。I can help you with your lesson.拓展：注意下列拓展：注意下列lesson
5、和和class的固定搭配：的固定搭配：do ones lessons做功课做功课 give lessons to 给给上课上课 after(before)class课后课后(前前)in class在课堂上在课堂上Lets do a surveyWhats your name?What subjects do you like?My name is _.I like _ and _.I like _ and _.Whats your name?My name is Kate.Play rolesWhat subjects do you like?I like Chinese,English,ar
6、t and music.Suffering is the most powerful teacher of life.苦难是人生最伟大的老师。For man is man and master of his fate.人就是人，是自己命运的主人。A man cant ride your back unless it is bent.你的腰不弯，别人就不能骑在你的背上。1Our destiny offers not the cup of despair,but the chalice of opportunity.So let us seize it,not in fear,but in gladness.命运给予我们的不是失望之酒，而是机会之杯。因此，让我们毫无畏惧，满心愉悦地把握命运
